N579AS
Registered owner: ALASKA AIRLINES INC, WA (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
EXIT ROW 16A HAS WRONG SIGNAGE ON EMERGENCY LT COVER. GROUNDED - YES. REPLACED EXIT ROW EMERGENCY SIGN COVER IAW AMM 33-51-04.
FORWARD CARGO COMPARTMENT,R/H SIDEPLATE CHANNEL HAS MULTIPLE AREAS OF CORROSION (RBL22,STA 500E-500I). GROUNDED - YES. REMOVED & REPLACED R/H SIDEPLATE CHANNEL W/ NEWLY FABRICATED PIECE IAW BOEING DWG# 143A7501 REV.A B737NG S.R.M. 53-00-53-2R-5 DUE TO CORROSION OUT OF LIMITS ON ORIGINAL PART ORIG MAT:0.040",MAT. REMOVED:0.024",RMNG THICKNESS:0.016",OUT OF LIMITS I.A.W B737-800 S.R.M. 53-00-53-1A-2. FIG 103 DETAIL D.
RIGHT HORIZONTAL STAB LOWER SKIN DAMAGED AT RIB 6 APPROXIMATELY HSS 138.7. GROUNDED - YES. EVALUATED DAMAGE AT LWR SKIN FOUND TO BE OUT OF LIMITS LENGTH=2.7", DEPTH=.041 IAW SRM 55-10-01-1A-2, FIG.103. REMOVED RT HORIZONTAL STAB. L/E PANEL & STAB. CAP IAW SRM 51-40-02. CUTOUT DAMAGED AREA AT LWR SKIN IAW SRM 55-10-01-2R-1, REPAIR 11. FABRICATED, LOCATED & DRILLED REPAIR PARTS IAW SRM 55-10-01-2R-11. APPLIED ALODINE ON REPAIR PARTS IAW SRM 51-20-01, APPLIED PRIMER ON REPAIR IAW SOPM 20-44-04. INSTALLED REPAIR IAW SRM 55-10-01-2R-11. APPLIED TOP COAT IAW AMM 51-21-99. INSTALLED HORIZONTAL STAB L/E PANEL AND STAB. CAP IAW AMM 27-41-21-400-801, AMM 55-10-00-400-801. CAT.B REPAIR.
EMERGENCY LIGHTS FOR POWER SUPPLY M2335 INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHTS POWER SUPPLY M2335 S/N 9266 REF B737NG AMM 33-51-06-960-806 EMERG LIGHTS OPS CHECKS GOOD REF B737NG AMM 33-51-06-960-806.
EMERGENCY LIGHTS FOR POWER SUPPLY M1670 INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHTS POWER SUPPLY M1670 S/N 35747 REF B737NG AMM 33-51-06-960-806. EMERG LIGHTS OPS CHECKS GOOD REF. B737NG AMM 33-51-06-960-806.
FWD PIT RT BAFFLE BETWEEN STATIONS 500F TO 500G CRACKED AND CORRODED. GROUNDED - YES. BLENDED FWD PIT RH BAFFLE BETWEEN STATIONS 500F TO 500G. AFTER FURTHER EVALUATION NO CRACKS PERMITTED. REPLACED BAFFLE P/N 143A7510-20 PO#1134617.1 IAW BAC DWG #143A7505 REV.B. AND B737NG SIM 51-40-02. ACCOMPLISHED REPAIR FOR WIRE BUNDLE THROUGH LIGHTENING HOLE. IAW B737 NG SRM 53-30-53-2R-1. CORROSION EXCEEDED 100% MATERIAL LOSS. MATERIAL THICKNESS .020 MATERIAL LOSS .020. MATERIAL REMAINING 0.000.
FWD PIT R/H BAFFLE BETWEEN STATIONS 500G TO 500H BENT AND CORRODED. GROUNDED - YES. REMOVED CORROSION IN FWD PIT R/H BAFFLE BETWEEN STATIONS 500G TO 500 H. ORIGINAL THICKNESS .020 MATERIAL LOSS 0.011 MATERIAL REMANINING 0.009. FOUND TO BE OUT OF LIMITS IAW B737NG SRM 53-00-53-1A-2. REMOVED AND REPLACED BAFFLE P/N 143A7510-22 PO#1135036.1. IAW B737 NG SRM 51-40-02 AND BAC DWG #143A7505 REV.-.
FWD CARGO PIT RH SIDE STA 500H-500I BAFFEL CORRODED. GROUNDED - YES. BLENDED CORROSION ORIGINAL THICKNESS .020 MATERIAL LOSS 0.007 MATERIAL REMAINING 0.013. FOUND TO BE OUT OF LIMITS IAW B737 NG SRM 53-00-53-1A-2. REMOVED AND REPLACED FWD PIT R/H SIDE BAFFLE P/N 143A7503-12 PO# 1134196.7. IAW B737NG SRM 51-40-02 AND BAC DWG# 143A7505 REV.B.
FORWARD CARGO COMPARTMENT, LT SIDEPLATE CHANNEL HAS MULTIPLE AREAS OF CORROSION (LBL22, STA 500D - 500I). GROUNDED - YES. REMOVED & REPLACED FWD CARGO LH SIDEPLATE CHANNEL FROM STA 500B+10 500I IAW B737NG SRM 51-40-02 + BAC DWG 143A600 REV- ORIGINAL THICKNESS 0.040 MAT REMOVED 0.014 MAT REMAINING 0.026.
AFT CARGO DOOR THRESHOLD HAS MULTIPLE AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION ON AFT CARGO DOOR THRESHOLD LOWER SILL WEB FOUND TO BE OUT OF LIMITS IAW B737NG SRM 53-60-15-1A-1 FIG 103. REMOVED AND REPLACED THRESHOLD IAW B737NG SRM 51-40-02 + BAC DWG 146A8340 REV C ORIGINAL THICKNESS 0.050" MAT REMOVED 0.022" MAT REMAINING 0.028".
EXIT SIGN OVERWING GOT BUMPED OFF. GROUNDED - YES. FOUND EXIT SIGN COVER DISLODGED. INSPECTED EXIT SIGN. NO DEFECTS NOTED. REINSTALLED EXIT SIGN COVER.
FA'S REPORT EMERGENCY EXIT LIGHT, OVERHEAD MID CABIN LENS CAME OFF. GROUNDED - YES. REINSTALLED EMERGENCY EXIT LIGHT LENS, NO DEFECTS NOTED.
EXTERIOR EMERGENCY LIGHTING SYSTEM HAS 3EA LIGHTS INOP. GROUNDED - YES. RELAMPED BULBS AT R1, R2 AND L2 FOR EXTERIOR LIGHT NO HELP. REPLACED R1 AND R2 BATTERY PACKS REF AMM 33-51-06-960-805. OPERATIONAL CHECK GOOD. REPLACED SOCKET ASSEMBLY AND CONTACT ON L2 EXTERIOR EMERGENCY LIGHT REF CMM 33-51-04. OP CHECK GOOD. ALL EMERGENCY LIGHTS ILLUMINATE.
R2 DOOR EXTERIOR EMERGENCY LIGHT BEZEL LENS DISLODGED. GROUNDED - YES. REMOVED AND REPLACED R2 DOOR EMERGENCY LIGHT LENS REF AMM 33-51-04-960-801.
RIGHT HORIZONTAL STAB LOWER SKIN IS CRACKED AT THE I/B SIDE OF RIB STA 101.90 NEAR DRAIN HOLE. GROUNDED - YES. REMOVED DAMAGE AND REPAIRED LOWER R/H HORIZONTAL SKIN IAW B737-800 SRM 55-10-01-2R-11.
L2 DOOR EMERGENCY LIGHTS BATTERY PACK FAILED 15 MINUTES BATTERY CHECK. GROUNDED - YES. REMOVED AND REPLACED L2 DOOR EMERGENCY LIGHT BATTERY PACK IAW B737-800 AMM 33-51-06-960-805 STEP 4. OPS CHECKS GOOD. (S/N 87711)
EXIT SIGN FELL OFF. GROUNDED - YES. EXIT SIGNS FELL OFF REATTACHED MID CABIN EXIT SIGNS AS REQ'D.
COCKPIT TEMP SELECTOR (CONTROL CABIN) DIFFICULT TO CONTROL TEMP AT ALTITUDE, SEEMS TO PROVIDE COLDER TEMPS VS PROVIDING HEAT WHEN ADJUSTING TEMP. GROUNDED - YES. BITE PACK TEMPERATURE CONTROLLER AND NO FAULT FOUND. REF B737-800 FIM 21-62-00-810-801. REMOVED AND REPLACED CABIN TEMPERATURE SENSOR FILTERS REF B737-800 AMM 21-61-06-400-801. SUPPLY CONDITIONED AIR TO CONTROL CABIN WITH BOTH PACK AND CABIN TEMP IS COTROLLABLE REF FIM 21-62 TASK 905.
PREFLIGHT FOUND AUTO FLIGHT ILLUMINATED ALTN ALSO ILLUMINATED. GROUNDED - YES. ACCOMP FIM TASK 21-31 #827. PRESS CONT #2 LOGGED FAULT CODE #006 SYSTEM WIRING. FAULT CLEARED AND OPS CKS NML PER SAME. GND VERIFICATION SUCCESSFUL. SEAMC DOUG NOTIFIED.
AFTER #2 ENGINE START ENG ANNUNCIATED AND EEC SWITCHED TO ALT MODE AND CDS FAULT INDICATION AND NO "B" SYS HYD PRESS INDICATION. GROUNDED - YES. PERFORMED FIM 73-24 TASK 801 FOUND MSG # 73-31442 "DEU2 DATA MISSING" PERFORMED A/C POWERDOWN FOR TROUBLE SHOOTINGREF MM 20-60-99. PERFORMED DEU SELF TEST REF FIM 31-62 TASK 802, SELF TEST PASSED, NO CURRENT FAULT. PERFORMED EEC TEST AGAIN REF FIM 73-24 TASK 73-24 TASK 815 NO FAULTS TEST PASSED, NO CDS FAULTS INDICATION. RAN ENG #2 REF MM 71-00-00, ENG #2 ALT MODE LIGHT DID NOT TURN ON. NO 30 DAY HISTORY. SEAMC STEVE NOTIFED. A/C OK FOR SERVICE.
WHILE PERFORMING T/C 78273000 FOUND #1 ENG INTERNAL EEC FAULT 73-20201 LONG TERM. GROUNDED - YES. ON DEFERRAL.
ON PRESSURIZATION PANEL "ALTN" & "AUTO FAIL" ILLUMINATED. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-31 TASK 801. OPS NORMAL LIGHT EXTINGUISHED.
PASSENGER AT 17F REPORT EXIT ROW LIGHTING LOOSE, WIRING LOOSE AND SCATCHING HIS LEG. GROUNDED - YES. INSTALLED MISSING LENS ON ROW 17F EXIT ROW LIGHTING PER B737-800 AMM 33-51-01. OK FOR SVC.
LEFT PACK LIGHT ILLUMINATED ONCE CRUISE ALTITUDE OF 330 REACHED. QRH COMPLIED WITH. LIGHT EXTINGUISHED HOWEVER PACK LIGHT ILLUMINATED AGAIN AFTER A FEW MINUTES. GROUNDED - YES. REPLACED LH PACK RAM AIR DOOR ACTUATOR WITH NEW REF B737-800 AMM 21-51-21.
ZONE TEMP LIGHT ILLUMINATES ON RECALL FOR CONT CAB. GROUNDED - YES. REMOVED & REPLACED R/H PZTC REF B737-800 AMM 21-61-20. OPS & BITE CHECKS NORMAL.
DUCT PRESSURE DIFFERENTIAL DURING FLIGHT GREATER THAN 20 PSI. 5000FT R-40PSI L-5PSI, 10000FT R-45 L-7, 20000FT R-47 L-7, 30000FT R-47 L-8@ 340FL CABIN ALT 7200, DIFF 7.7. GROUNDED - YES. ACCOMPLISHED #1 ENGINE PNEUMATIC SYSTEM HEALTH CHECK REF. TC NG-36WC-0002-1. FOUND PRSOV BAD. REMOVED & REPLACED PRSOV REF. B737-800 AMM 36-11-04.
DUCT PRESSURE SLIT CLIMBING FL200 LEFT 5PSI, RIGHT 45 PSI, CLIMBING FL 340 LEFT 6PSI, RIGHT 45PSI, LEVEL 370 LEFT 6PSI, RIGHT 43PSI DESCENT FL 310 LEFT 6PSI, RIGHT 20PSI POWER IDLE3, FL 240 LEVEL 6PSI RIGHT 50PSI 15000 RIGHT 25PSI, LEFT 5 PSI, AFTER LANDING AND BLEEDS ESTABLISHED ON APU RIGHT DUCT 25PSI, LEFT DUCT 20PSI. GROUNDED - YES. PERFORMED VISUAL INSP OF PCCV PRSOV AND HSV ALL VALVES ARE IN CORRECT POSITION AND ROTATE FREELY WHEN MANUALLY ENGAGED. REF B737-800 FIM 36-10 TASK 810 STEP F.3. PERFORMED FIM TASK 36-10 TASK 810, NO LEAKS IN SYSTEM FOUND OR DEFECTS NOTED. REMOVED AND REPLACED PRECOOLER CONTROL VALVE 390 SENSOR IN REF TO B737-800 AMM 36-12-03. REMOVED AND REPLACED THERMOSTAT 450 SENSOR IN REF TO AMM 36-11-05. PERFORMED ENG. RUN ENG WITH NO DEFECTS NOTED. DUCT PRESSURES ALL NORMAL.
R2 WINDOW OVERHEAT: RAN QRH, LIGHT REMAINS ILLUMINATED. GROUNDED - YES. FOUND C/B OPEN - INSP C/B & PANEL AREA, NO DEFECTS NOTED, RESET SAME. SYS OPS CKS NML REF B737-800 AMM 30-41-00, GND VERIFICATION SUCCESSFUL.
R ELEV PITOT CAUTION LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED RIGHT ELEVATOR PITOT PROBE, REF B737-800 AMM 27-31-94/401.
PACK LIGHT ILLUMINATED ON RECALL EXTINGUISHES W/ MASTER CAUTION RESET. GROUNDED - YES. PERFORMED ZONE TEMP CONTROLLER BITE TEST, FOUND CONTROLLER #1 RAM AIR ACT FAULT. FOUND FAULT ON PREVIOUS FLIGHT, FAULT CONSIDERED INTERMITTENT, REPEATED TEST, BITE PASSES ON SUBSEQUENT TESTS. DURING B737-800 FIM 21-53 TASK 821, PACK LIGHTS ARE OFF, DOES NOT RECALL, OPENED AND CLOSED ECS BAY DOORS. NO FAULTS FOUND IN ECS BAY. PUT PSEU IN TO AIR AND BACK INTO GROUND MODE, DOORS SECURED.
LEFT FWD WINDOW HEAT OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. FOUND C/B B9 ON P6-11 OPEN. PERFORMED C/B RESET REF AMM 20-60-01 NO DEFECTS NOTED. CLOSED C/B AND REMAINED CLOSED. PERFORMED WHCU BITE REF B737-800 FIM 30-41 TASK 801 BITE TEST OK NO FAULTS L/H FWD WINDOW OVERHEAT LAMP EXTINGUISHED. ALL REQUIRED TESTS PASSED.
AC RIGHT FUEL INDICATOR INTERMITTENT. FUEL IND WENT BLANK SHORTLY AFTER T/O STAYED OFF UNTIL LEVEL OFF. GROUNDED - YES. FQIS LOGGED MX MSG 28-41215 B737-800 FIM TASK 28-41 TASK 810 SYS TEST GOOD. NO HISTORY.
STARBOARD FUEL TANK QTY INDICATION MISSING. GROUNDED - YES. REPLACED THE CENTER TANK REFUEL INDICATOR PER B737-800 AMM 28-41-61.
DURBIN THE FLAI MANEVER AND JUST BEFORE TOUCH DOWN ON THE AUTOLAND, THE AIRCRAFT PITCHED UP AND YAWED AND BANKED LEFT ALARMINGLY DISCONNECTED AUTOPILOT AT LEFT GEAR TOUCHDOWN AND RECOVERED MANUALLY. WE DID NOT HAVE APPROACH WARNING. GROUNDED - YES. ACCOMPLISHED LAND VERIFY IAW B737-800 AMM 22-11-00. AND HGS SYSTEM TEST IAW SMM 34-36-00. NO DEFECTS NOTED.
WX RADAR BEGAN MAKING RUMBLING/GRINDING NOISE FOLLOWED BY LOUD VIBRATION UNDER FEET. WX/FAIL ALERT ON NAV DISPLAY FOLLOWED. CONFIRMED SOUND AND VIBRATION WHEN CYCLING WX RADAR. GROUNDED - YES. REMOVED & REPLACED WXR DRIVE UNIT B737-800 AMM 34-43-11.
L-1 WINDOW HEAT OVERHEAT LIGHT WILL NOT RESET. GROUNDED - YES. CHECKED L-1 WINDOW - DARK BROWN MARK NEAR PWR BUS TERMINAL 4, DELAM AND ARCING. ACCOMPLISHED B737-800 FIM 30-41 TASK 801 BITE CK - "P5-9 1 CONTROL PWR" FAULT. ACCOMPLISHED FIM 30-41 TASK 814 - L-1 WINDOW HEATER RESISTANCE CHECK TERMINAL 3 AND 1 - 7.12 OHMS. REMOVED AND REPLACED L-1 WINDOW PER 737-800 AMM 56-11-11/401.
PWS FAIL MSG ON ND FROM ROTATION UNTIL APPROXIMATELY 2,000 FEET BEFORE EXTINGUISHING. GROUNDED - YES. PERFORM PWS B737-800 FIM 34-43 TASK 815. WEATHER RADAR SYSTEM BITE PROCEDURE TEST PASSED.
LEFT FWD WINDSHIELD OVERHEAT "ON". GROUNDED - YES. FOUND CB B9 ON P6-11 PANEL OPEN. RESET CB REF B737-800 AMM 20-60-01 PERFORMED WHCU BITE CHECK NO FAULTS FOUND. REF B737-800 FIM 30-41 TASK 801.
HISTORY OF LEFT SIDE WINDOW OVERHEAT IN TRAX AND CB B9 ON P6-11 PANEL THAT TRIPPED WAS FOR LEFT FRONT AND RIGHT SIDE. TSR IN WORK. GROUNDED - YES. PER HISTORY ON C/B TRIPPING B9, CONFIRMED WIRE HAS NO CONTINUITY TO GROUND. CHANGED COMPUTER PRECAUTIONARY REF B737-800 AMM 30-41-11 OPS TEST GOOD.
ON PRE FLIGHT, L FWD WINDOW HEAT OVERHEAT ILLUMINATES WHEN SWITCHES SELECTED ON. GROUNDED - YES. FOUND B9 C/B ON P6-11 OPEN. PERFORMED C/B RE-SET PROCEDURE IAW B737-800 AMM 20-60-01-860-801. PERFORMED WHCU BITE CHK, NO FAULTS IAW B737-800 FIM 30-41 TASK 801.
WINDOW OVERHEAT LIGHT FOR LEFT INBOARD WINDOW ILLUMINATED. RAN QRH WITHOUT SUCCESS. GROUNDED - YES. FOUND B9 C/B ON P6-11 OPEN WITH C/B NAME PLATE BENT FORWARD. CLOSED C/B AND PERFORMED BITE TEST ON LEFT FRONT WHCU REF B737-800 AMM 30-41-11. BITE TEST OK. NO FAULTS NOTED.
LEFT FMC FAILED MULTIPLE TIMES AFTER LANDING DURING TAXI IN. WHEN FMC RESTORED ITSELF , FAILURE OCCURRED AGAIN WITHIN ONE MINUTE. GROUNDED - YES. PERFORMED OPERATIONAL TEST OF FMC IAW B737-800 AMM 34-61-00-710-801. NO DEFECTS NOTED.
UNABLE TO ACCESS EITHER FMS FROM CDU L/R. GROUNDED - YES. PWR DOWN A/C, ACCOMPLISHED FMC OPERATIONAL TEST LH & RH FMC REF B737-800 AMM TASK 34-61-00-710-801. BOTH OPS CK OK. NO HISTORY 30 DAYS. OK FOR SERVICE.
HF 2 RADIO INDICATES FAIL, FAIL ON BOTH TUNING PANEL. GROUNDED - YES. PERFORMED B737-800 FIM 23-11 TASK 802 AND FAULT CLEARED. PERFORMED HF #2 BITE PROC. REF FIM 23-11 TASK 801, NO FAULTS ETOPS GROUND FUNCTIONAL TEST GOOD.
L2 EMERGENCY EXIT LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED L2 EMERGENCY LIGHT LAMP IAW B737-800 AMM 33-51-04-960-801.
ALL EMERGENCY LIGHTS ASSOCIATED WITH BATTERY PACK M1675 INOP. GROUNDED - YES. REMOVED AND REPLACED M1675 POWER SUPPLY AND INSTALLATION TEST GOOD IAW B737-800 AMM 33-51-06-960-806.
MAIN CABIN FLOOR SUPPORT- STA. 328 @ RBL 65 - BEAM UPPER CHORD SURFACE & AROUND 1 FASTENER HOLE - AREAS OF CORROSION. RED CIRCLED. GROUNDED - YES. REMOVED CORROSION IAW B737-800 SRM 51-10-02. ORIG THICKNESS 0.100 REMOVED 0.019 REMAINING MAT 0.081 FOUND TO BE OUT OF LIMITS IAW B737-800 53-10-15. REMOVED 3E RIVETS IAW B737-800 SRM 51-40-02. LAID OUT 14 GRID AND PROVIDED DEPTH MEASURMENTS FOR BLEND OUT. REMOVED CHORD ASSY AND 2 EEACH LOWER STIFFNERS IAW B737-800 SRM 51-40-02 LOCATED AND DRILLED NEW CHORD ASSY IAW P/N 654A0064-134 PO# 1639504 IAW B737-800 SRM 51-40-05 AND ANGLE P/N 141A8312-5 PO# 139423.3 IAW B737-800 SSRM 51-40-05. INSTALLED NEW PART IAW B737-800 SRM 51-40-02.
FLOOR PANEL P/N 147A5810-137 DELAM. GROUNDED - YES. REPAIRED FLOOR PANEL P/N 147A5810-137 IAW B737-800 SRM 53-00-50-2R-0, 53-00-50-2R2, SRM 53-00-50-2R1.
FLOOR PANEL P/N 147A5810-23 DELAM. GROUNDED - YES. REPAIRED FLOOR PANEL P/N 147A5810-23 IAW B737-800 SRM 53-00-50-2R0, SRM 53-00-50-2R2, SRM 53-00-50-2R1.
FLOOR PANEL P/N 147A5810-136 DELAM. GROUNDED - YES. REPAIRED FLOOR PANEL P/N 147A5810-136 IAW B737-800 SRM 53-00-50-2R-0, SRM 53-00-50-2R1, SRM 53-00-50-2R2.
FLOOR PANEL P/N 147A5810-345 DELAM. GROUNDED - YES. REPAIRED FLOOR PANEL P/N 147A5810-345 IAW B737-800 SRM 53-00-50-2R0, 53-00-50-2R2, SRM 53-00-50-2R1.
FWD WET AREA: INTERCOSTAL BETWEEN BS 312 AND BS328 RBL 31 IS CRACKED AT FASTENER HOLES. GROUNDED - YES. REMOVED INTERCOSTAL IAW B737-800 SRM 51-40-02.LOCATED AND DRILLED NEW INTERCOSTAL IAW BOEING DRAWING 141A5400 REV-. INSTALLED NEW INTERCOSTAL IAW BOEING DRAWING 141A5400 REV - AND B737-800 SRM 51-40-02.APPLIED CIC IAW B737-800 AMM 51-21-91-620-802.
LEFT SIDE CABIN BETWEEN STATION -900 LBL -1 FLOOR BEAM HAS CORROSION. GROUNDED - YES. EVALED CORROSION.FASTENER HOLE ELONGATED BEYOND ALLOWABLE LIMITS IAW B737-800 SRM 53-70-51-1A-1.LOCATED DRILLED AND INSTALLED NEW FLOOR SUPPORT IAW BOEING DWG 147A5700 REV B DOT REMOVED.ORIG THICK 0.080, 100 PERCENT MAT LOSS NOTED AT 0.365" LENGTH, 0.470" WIDTH.
RIGHT SIDE CABIN STATION -993 RBL-45 DOOR SILL AREA HAS CORROSION. GROUNDED - YES. EVALED CORROSION. ORIG T .080"REMOVED .017".REMAINING .068"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 DETAIL D.LOCATED DRILLED, AND INSTALLED NEW MOP SILL IAW BOEING DWG 147A8501 REV B.
LEFT SIDE CABIN STATION -986 RBL - 30 T-CAP HAS CORROSION. GROUNDED - YES. EVALED CORROSION.ORIG T .150"REMOVED .060".REMAINING .090"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 REMOVED ADJACENT STRUCTURE. ACCOMPLISHED FULL TCAP REPAIR IAW B737-800 SRM 53-70-51-2R-4.REINSTALLED ADJACENT STRUCTRE IAW BOEING DWG 147A5700 REV A.
RIGHT SIDE CABIN STATION -988 RBL-44 PRESSURE DECK HAS CORROSION. GROUNDED - YES. EVALED CORROSION.ORIG T .040"REMOVED .008".REMAINING .032"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 LOCATED DRILLED, AND INSTALLED NEW PRESSURE DECK / SHEAR WEB IAW BOEING DWG 147A5700 REV A.
RIGHT SIDE CABIN STATION 1014 RBL 31 AROUND AFT GALLEY MOUNT AREA HAS CORROSION. GROUNDED - YES. EVALED CORROSION.ORIG T .050"REMOVED .020".REMAINING .030"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 DETAIL C.LOCATED DRILLED, AND INSTALLED NEW WALL SUPPORT IAW BOEING DWG 147A5700 REV B.
LEFT SIDE CABIN STATION -1014 LBL-31 AROUND GALLEY MOUNT AREA HAS CORROSION. GROUNDED - YES. EVALED CORROSION.ORIG T .050"REMOVED .024".REMAINING .026"FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-70-51-1A-1 DETAIL C.LOCATED DRILLED, AND INSTALLED NEW WALL SUPPORT IAW BOEING DWG 147A5700 REV B.
AFT PIT R/H TRANSITION PANEL IS CRACKED AT STA 727J+14. (STREAMER ATTACHED). GROUNDED - YES. EVAL'D AFT PIT R/H TRAHSITION PANEL AT STA 727J+14 CRACK IS TO FASTENER HOLE, OUT OF LIMITS,REMOVED FROM STA 727J+12 - STA 767,LOCATE AND DRILLED USING MAT I.D. BAC 1496-377 7075-T62 PO:1014538.1,ALODINED, PRIMED, ASSEMBLED, INSTALLED AND CIC'D , IAW B737-800 SRM 53-00-51-1A-2, SRM 53-00-53-2R-5 REPAIR 5, SRM 51-20-01, BOEING SOPM 20-41-02 REMOVED STREAMER.
R1 DOOR THRESHOLD SUPPORT STRAP - STA.312 THRU 344- UPPER SURFACE & ROUND FASTENER HOLES HAS AREAS OF SURFACE CORROSION .RED CIRCLED. GROUNDED - YES. REMOVED CORROSION IAW B737-800 SRM 51-10-02.ORIG THICKNESS 0.080REMVOED 0.016REMAINING MAT 0.064FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-10-15-01-2 REMOVED ANGLE IAW B737-800 SRM 51-40-02.LOCATED AND DRILLED NEW ANGLE IAW B737-800 SRM 51-40-05 AND BAC DWG 141A8310 REV B INSTALLED NEW ANGLE IAW BAC DWG 141A8310 REV:B AND IAW B737-800 SRM 51-40-02.
AFT PIT R/H SHIELD SUPPORT P/N 146A8125-53 IS CORRODED. GROUNDED - YES. EVALUATED AFT PIT RH SHIELD SUPPORT P/N 146A8125-53ORIGINAL THICKNESS .050" PER BAC DWG 146A8123-18 REV A SHEET.MAT REMOVED .006',.044" REMAINING.OUT OF LIMITS PER B737-800 SRM 53-60-15-1A-2 FIG 103 TABLE D.REMOVED AND REPLACED SHIELD SUPPORT W/ NEW PART # 146A8125-53 PO:1039187.3 IAW B737-800 SRM 51-40-02, SRM 51-40-05, AND BAC DWG 146A8123 SHEET 16 REV-.
AFT PIT R/H TRANSITION PANEL IS CRACKED AT STA 727J+14. (STREAMER ATTACHED). GROUNDED - YES. EVAL'D AFT PIT R/H TRAHSITION PANEL AT STA 727J+14 CRACK IS TO FASTENER HOLE, OUT OF LIMITS,REMOVED FROM STA 727J+12 - STA 767,LOCATE AND DRILLED USING MAT I.D. BAC 1496-377 7075-T62 PO:1014538.1,ALODINED, PRIMED, ASSEMBLED, INSTALLED AND CIC'D , IAW B737-800 SRM 53-00-51-1A-2, SRM 53-00-53-2R-5 REPAIR 5, SRM 51-20-01, BOEING SOPM 20-41-02 REMOVED STREAMER.
AFT PIT L/H TRANSITION PANEL PUNCTURED @ STA 747. GROUNDED - YES. EVALUATED AFT PIT L/H TRANSITION PANEL @ STA 747.PUNCTURE OUT OF LIMITS PER B737-800 SRM 53-00-53-1A-2 DUE TO PROXIMITY OF PUNCTURE TO FASTENER HOLE.REMOVED DAMAGED SECTION AT STA 727I TO STA 767+13.FABRICATED, ALODINED AND PRIMED REPAIR PARTS USING BAC1496-377 7075-T62 PO: 1014538.1 IAW B737-800 SRM 53-00-53-2R-5. SRM 51-20-01, AND BOEING SOPM 20-41-02. INSTALLED TRANSITION PANEL REPAIR AT STA 727I+13 TO STA767+13 AFT PIT L/H SIDE IAW B737-800 SRM 53-00-53-2R-5.
AFT PIT L/H TRANSITION PANEL PUNCTURED @ STA 747. GROUNDED - YES. EVALUATED AFT PIT L/H TRANSITION PANEL @ STA 747.PUNCTURE OUT OF LIMITS PER B737-800 SRM 53-00-53-1A-2 DUE TO PROXIMITY OF PUNCTURE TO FASTENER HOLE.REMOVED DAMAGED SECTION AT STA 727I TO STA 767+13.FABRICATED, ALODINED AND PRIMED REPAIR PARTS USING BAC1496-377 7075-T62 PO: 1014538.1 IAW B737-800 SRM 53-00-53-2R-5. SRM 51-20-01, AND BOEING SOPM 20-41-02. INSTALLED TRANSITION PANEL REPAIR AT STA 727I+13 TO STA767+13 AFT PIT L/H SIDE IAW B737-800 SRM 53-00-53-2R-5.
FLOOR PANEL P/N 141A5810-236 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL P/N: 141A5810-236 IAW B737-800 SRM: 53-00-50-2R-0 & 53-00-50-2R-7.
FLOOR PANEL P/N 141A5810-558 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL O/N: 141A5810-558 IAW B737-800SRM:53-00-50-2R-0 & 53-00-50-2R-7.
FLOOR PANEL P/N 141A5810-175 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL 141A5810-175 IAW B737-800 SRM 53-00-50-2R AND 53-00-50-2R-7.
FLOOR PANEL P/N 141A5810-155 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL P/N:141A5810-155 IAW B737-800 SRM:53-00-50-2R-0 & 53-00-50-2R-7.
FLOOR PANEL P/N 141A5810-470 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL P/N:14185810-470 IAW B737-800 SRM:53-00-50-2R & 53-00-2R-7.
FLOOR PANEL P/N 147A5810-28 DELAM. GROUNDED - YES. ACCOMPLISHED PERMANENT REPAIR TO FLOOR PANEL 147A5810-28 IAW B737NG SRM 53-00-50-2R-0.
FLOOR PANEL P/N 141A5810-454 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL 141A5810-454 IAW B737-800SRM:53-00-50-2R-0 & 53-00-50-2R-7.
FLOOR PANEL P/N 141A5810-286 DELAM. GROUNDED - YES. REPAIRED DELAM ON FLOOR PANEL P/N:141A5810-28C IAW B737-800 SRM:53-00-50-2R-7, 53-00-50-2R-0.
#2 ENGINE SLUGGISH TO START. N2 ACCELERATES TO 21-22% IN OVER 30 SEC AND DOES NOT INCREASE BEYOND THAT WITHIN THE START PARAMETERS. EGT T NORMAL DURING START. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE START VALVE REF B737-800 AMM 80-11-03. OPS CHECK GOOD. LEAK CHECK GOOD REF AMM 71-00-00-700-809-F00. ENGINE STARTS NORMAL.
#1 ENGINE S3 EGT SHOWS DASHES. GROUNDED - YES. REMOVED AND REPLACED S3 DETECTOR REF. B737-800 AMM 77-21-01. REMOVED AND REPLACED CJ10 HARNESS REF. AMM 73-21-06.
ON CLIMBOUT, L SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED, ACCOMPLISHED QRH & LIGHT EXTINGUISHED. GROUNDED - YES. PERFORMED BITE TEST OF WHCU IAW B737-800 FIM 30-41 TASK 801. NO CURRENT FAULTS PRESENT.
LEFT SIDE WINDOW HEAT OVERHEAT LIGHT CAME ON DURING FLIGHT QRH DIRECT US TO TURN OFF (FOR 5 MINS) THEN TURN BACK ON, OVERHEAT LIGHT EXTINGUISHED. OPERATED NORMAL FOR REST OF FLIGHT. QRH DIRECTED INFORMATION ONLY WRITE UP. GROUNDED - YES. PERFORMED OPERATIONAL TEST OF LEFT SIDE WINDOW HEAT REF B737-800 AMM 30-41-00-710-801, OPS CHECK GOOD. INFO NOTED.
PWS FAIL AND WXR FAIL INDICATED ON F/O ND. GROUNDED - YES. ACCOMPLISHED A/C POWER RESET PER B737-800 AMM 20-60-01. ACCOMPLISHED WXR OPS TEST PER AMM 34-43-00. OPS CHECKS NORMAL.
FA REPORTS EXIT SIGN COVER BY L2 DOOR MISSING. GROUNDED - YES. REPLACED COVER REF B737-800 AMM 33-51-01.
ON TAXI IN WE NOTICED WE LOST BOTH FMC'S AND ALL DATA. GROUNDED - YES. VERIFIED F/H FMC HAD A PGM FAULT, R/H FMC NO FAULTS LAST FLT. REF B737-800 FIM 34-61 TASK 801 & 807 ACCOMP FMC'S BOTH C/B CYCLING OPEN & CLOSED. ACCOMP SENSOR TEST, BOTH FMC'S SHOW OK REF B737-800 AMM 34-61-00-710-026.
REF AD20211420-MULTI-21-1. FOUND WEATHER RADAR COOLING BLOWER INOP. GROUNDED - YES. REPLACED WEATHER RADAR T/R MOUNT BLOWER ASSY WITH SERVICEABLE UNIT. OPS CHECKS OK. WEATHER RADAR SYS OPS TEST OK. REF B737-800 AMM 34-43-51.
PER T/C 78472010 #2 ENG. FAN BLADE LUBE PLATFORM #8 PN 340-001-817-0 NOT PAIRED 180 DEGREES APART. GROUNDED - YES. REMOVED AND REPLACED ENG #2 FAN BLADE PLATFORM #8, NEW PART #340-001-816-0, PLATFORMS NOW PAIRED REF ASA T/C 78472010.
PER T/C 78472010 #2 ENG FAN BLADE LUBE FRONT SPINNER CONE 6 WASHER GROOVES ARE WORN. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FRONT CONE WASHER REF ASA T/C 78472010. REMOVED AND REPLACED #2 ENG FRONT SPINNER CONE BOLTS SAME REF.
PER T/C 78472010 #2 ENG. FAN BLADE LUBE SPACERS # 4, 5, 7, 8, 9, AND 22 ARE DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FAN BLADE SPACERS # 4, 5, 7, 8, 9, AND 22 REF T/C 78472010.
TASK CARD 78233008 - FLT DECK EMERGENCY DOME LT IS VERY DIM. GROUNDED - YES. RELAMPED FLT DECK EMERGENCY DOME LT, OPS CHECKS OK. REF B737-800 AMM 33-51-00.
#2 ENGINE "REVERSER" LIGHT ILLUMINATED ON ON OVERHEAD PANEL. GROUNDED - YES. REMOVED AND REPLACED R/H AUTOTHROTTLE SWITCHPACK REF B737-800 AMM 76-11-07/401. OPS CHECK OK. REMOVED 4 SLEEVE PINS, REMOVED LOCKWIRE FROM #2 T/R HANDLE, RESET 2 C/BS.
FMC SCREEN BLANKED W/ FAULT LIGHT AFTER 3-5 SECONDS FMC ACTIVATED W/ BLUE LINE THROUGH SCREEN. GROUNDED - YES. REMOVED AND REPLACED FO'S FMC CDU REF B737-800 AMM 34-61-01. OPS CHECK GOOD.
UPON OPS PROCEDURE FOR MEL 21-21G, RIGHT PACK LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED TROUBLESHOOTING PER B737-800 FIM TASK 21-62-00-810-831 FOUND RIGHT TEMP CONTROL VALVE BAD. REMOVED AND REPLACED RIGHT TEMP CONTROL VALVE IAW B737-800 21-51-10. PERFORMED OPS CHECK, OPS CHECK GOOD AT THIS TIME.
AFTER PUSH BACK AND COMPLETION OF "AFTER START" CHECKLIST ON - RECALL MASTER & CONT CAB ZONE TEMP LIGHT ILLUMINATED CAUTION. GROUNDED - YES. PERFORMED TROUBLESHOOTING PER B737-800 FIM TASK 21-62-00-810-831 FOUND RIGHT TEMP CONTROL VALVE BAD. REMOVED AND REPLACED RIGHT TEMP CONTROL VALVE IAW B737-800 AMM 21-51-10. PERFORMED OPS CHECK, OPS CHECK GOOD AT THIS TIME.
CONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. CONFIRMED FAULT, #2 PACK/ZONE TEMP CONTROLLER SHOWS "FLIGHT DECK TCV (V143) FAIL & CONT CAB ZONE TEMP LIGHT ILLUMINATE WHEN RECALL. REMOVED & REPLACED SAME PER B737-800 AMM 21-61-21. GROUND FUNCTIONAL CK NML REF AMM 21-61-00-700-806-002.
WHILE PERFORMING TASK CARD 78273000, #1 ENG HAS SHORT TIME FAULT 73-30351 THE FMV POSITION SIGNAL DISAGREE, ON MULTIPLE FLIGHT LEGS. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 73-25 TASK 804, ALL CONTINUITY CHECKS GOOD. REMOVED AND REPLACED HMU PER TASK CARDS N8473000/N8473001. NO LEAKS NOTED.
#1 START VALVE WON'T OPEN. GROUNDED - YES. REMOVED & REPLACED #1 START VALVE PER B737-800 AMM 80-11-03. OPS CHECK GOOD.
R PACK LT ILLUMINATED ON RECALL. GROUNDED - YES. C/W BITE PROCEDURE B737-800 FIM 21-62-TASK 801 FOR LEFT AND RIGHT PACK / ZONE TEMPERATURE CONTROLLERS, R PACK TCV LIGHT ON PREV FLT, GREEN ON VERIFY AND RESET. C/W FIM 21-62 TASK 831 RIGHT PZTC-2 RESET. FOUND DIRTY CABIN SENSOR FILTERS, REPLACED FILTERS & PERFORMED CABIN TEMPERATURE CONTROL AND INDICATION TEST REF B737-800 AMM TASK 21-61-00-700-807-002. OPS TEST GOOD. PACK LIGHT DOESN'T ILLUMINATE DURING MASTER CAUTION RECALL.
L2 WINDOW OVERHEAT LIGHT ILLUMINATED. ACCOMP QRH PROCEDURE-LIGHT REMAINED OFF AFTER 5 MIN COOLING PERIOD. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 30-41 TASK 801 PERFORMED BITE CHK, GOOD. NO DEFECTS NOTED.
#1 ENGINE TREND DATA SHOWS A SHIFT IN DEGT, HDM, DELTA FUEL FLOW, DELTA CORE SPEED AND VSV POSITION DIVERGENCE WITH EXCESSIVE VSV SCATTER. (#PRI1/ETOPS)SEA ONLY. GROUNDED - YES. REMOVED BORESCOPE PLUGS 2 THROUGH 9, BORO PLUG 13,15 AND 17. REMOVED DRIVE PAD COVER. COMPLETED STEP 1 IAW TC 78472018, STEP 2 I/W TC 78472020 STEP 3 I/W T/C 78472022. FOUND 12 HPT BLADES WITH SIGNS OF DISTORTION AND MELTING NOT PERMITTED STEP 3B(1)(J) 78643 INSPECTOR #11. INSTALLED DRIVE PAD COVER PER B737-800 AMM 72-63-01-400-801-F00. NOTE LEAK CK REQ. INSTALLED BORESCOPE PLUGS 2-9, 13, 15 AND 17 REF MM 72-00-00-200-817-F00. ENG REMOVED & REPLACED REF T/C 78471000 & 78471001. LEAK CHECK OF DRIVE PAD ACCOMPLISHED AFTER SHOP VISIT.
HF 1 TRANSMIT AND RECEIVE NORMALLY HF2 UNABLE TO TRANSMIT OR RECEIVE. GROUNDED - YES. REMOVED AND REPLACED #2 HF COUPLER IAW B737-800 AMM 23-11-61/401. VERIFIED #2 HF TRANSMIT AND RECEIVED OK ON GROUND.
IN FLIGHT UNABLE TO XMIT ON EITHER HF. RETUNED NUMEROUS TIMES, MADE CONTACT W/SFO AIRINC AND 2 GOOD SELCALS. DURING FLIGHT HOURS IN, RETRIED HF 2 & HF1 RECEIVE BUT ONLY HF 2 XMITTED INTERMITTENTLY. GROUNDED - YES. CYCLED POWER TO BOTH HF'S #1 HF OPS RESTORED, TEST OK NO FAULTS REFERENCE B737-800 FIM 23-10 TASKS 801 AND 806. NUMBER 2 HF FAILED OPS CHECK. REMOVED AND REPLACED #2 HF RT AND CHECKS OK REFERENCE B737-800 AMM 23-11-21.
HF 2 WILL RECEIVE BUT NOT TRANSMIT. GROUNDED - YES. (RESOLVED ON W/O: 1889819 TASKCARD: N/R-00001 ) ACCOMPLISHED HF OPS CHECK REF B737-800 AMM 23-11-00 COULD TRANSMIT AND RECEIVE CLEARLY WITH NO FAULTS FOUND. ACCOMPLISHED BITE CHECK OF HF #2 TRANSCEIVER WITH NO FAULTS FOUND REF AMM 23-11-00. THIS CLEARSS MEL 23-11A C/N: 29059579 SEAMC MARK NOTIFIED AND PLACARD REMOVED. GROUND VERIFICATION TEST SUCCESSFUL.
L/H FWD OVERWING EXIT, EXIT SIGN COVER MISSING. GROUNDED - YES. INSTALLED NEW EXIT SIGN COVER. OPS CHECK GOOD.
WHILE PERFORMING FAN LUBE T/C 78472010 ON #1 ENGINE FOUND ALL SHIMS TO HAVE MOLYDAG COATING LOSS BETWEEN 25 TO 100%. GROUNDED - YES. REINSTALLED EXISTING SHIMS DUE NO NEW SHIMS AVAILABLE. SHIMS OK TO REMAIN IN SERVICE REF B737-800 AMM 72-21-02 SECTION L. REPLACE ALL FAN BLADE SHIMS 340-252-307-0 (24) WITHIN 1850 CYCLES.
DURING PUSH BACK, FMC DISAGREE ILLUMINATED. GROUNDED - YES. RAN "FMC DISAGREE" CHECKLIST RESOLVED ISSUE.
BATTERY DISCHARGE AND ELECTRIC AMBER LIGHT OVERHEAD PANEL DURING PREFLIGHT. GROUNDED - YES. REMOVED AND REPLACED MAIN BATTERY CHARGER. PERFORMED OPS CHECK, NO DEFECTS NOTED. OK FOR SERVICE. REF B737-800 AMM 24-31-21.
AIRCRAFT LEFT ROW 16 EXIT SIGN FELL OFF, SCREW MISSING. GROUNDED - YES. REMOVED AND REPLACED EXIT SIGN ASSEMBLY IN AIRCRAFT LEFT ROW 16 IAW B737-800 AMM 33-51-01.
AFTER ENGINE START- RIGHT PACK LIGHT ON - FOLLOWED QRH AFTER MC RESET. IS WENT OUT. GROUNDED - YES. PACK/ZONE TEMP CONTROLLER BITE TEST DONE ON RH SIDE: THIS PACK TCV SHOWED FAULTING ON PREVIOUS FLIGHT. FAULT RESETS REF B737-800 AMM 21-61-00-806-002.
FOUND #2 ENG SHORT TIME FAULT, MSG NBR 73-11272 (THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE) AND MSG NBR, 73-21282 (EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE) WHILE PERFORMING T/C 78273000. GROUNDED - YES. #2 ENG EEC CHANNEL A WOULD NOT BITE. EEC TEST SHOWS FAULT 73-10212 (INTERNAL EEC FAULT). CHANNEL A AND B POWER SHOWS 115 VAC FOR EEC REF B737-800 FIM 73-05 TASK 803. EEC WILL NOT TAKE SERIAL NUMBER FOR ENGINE: SHOWS DASHES. EEC REMOVED REF B737-800 AMM 73-21-60-400-801-F00. INSTALLED NEW EEC REF AMM 73-21-60, GROUND VERIFICATION TEST PASSED.
#1 ENGINE OVERHEAT 970F AT VR NO SURGE OR ABNORMAL ENG #S. GROUNDED - YES. DIVERSION TIME 18 MINUTES - C/W B737-800 FIM TASK 71-06 TASK 805 ITEM 2 REMOVED AND REPLACED T49.5 PROBE REF B737-800 AMM 77-21-01 C/W EEC TEST REF AMM 73-21-00. NO FAULTS FOUND, OPS CHECK NORMAL ITEM 3 PERFORMED INSPECTION AS REQUIRED REF AMM 71-00-00-800-804. NO DEFECTS NOTED ON THE INLET OR EXHAUST, FOUND EXCEEDANCE CAUSED BY EGT INDICATING SYST FAULT NOTED ON ITEM 2ITEM 4 C/W AMM 77-21-00-140-801 CLEANED EGT PROBES AND CONNECTORS T49.5 S3-S4.
WING REFUEL PANEL CTR FUEL TANK INDICATOR INOP - COCKPIT IND NORM. GROUNDED - YES. COMPLIED WITH REMOVED AND REPLACED THE CTR REFUEL QUANTITY INDICATOR PER B737-800 AMM 28-41-61/401.
WHILE PERFORMING T.C. #78273000, #1 ENG HAS SHORT TIME FAULT 75-20421 THE HMU VBV CONTROL CURRENT IS OUT OF RANGE, ON MULTIPLE LEGS. GROUNDED - YES. REPLACED THE #1 ENGINE EEC PER B737-800 AMM 73-21-60/401. OP-CHECKS GOOD. FAULT NO LONGER ACTIVE.
REF TC 78273000 ENGINE 1 SHOWS THE SHORT TERM FAULT. NUMBER 75-20421. HMU VBV CONT CURR OUT OR RANGE. GROUNDED - YES. CONFIRMED FAULT ACTIVE 6 OF 10 FLIGHT LEGS. PERFORMED B737-800 FIM 75-32 TASK 804. FOUND SLIGHT RESISTANCE FLUCTUATION WHEN CABLE MANIPULATED AT DP0606. AS PRECAUTION, REMOVED AND REPLACED J6 HARNESS ON #1 ENGINE. OP CHECK GOOD. ERASED EEC FAULT HISTORY FOR EASIER TRACKING OF 75-20421 IN THE FUTURE.
#2 AFT FUEL PUMP "LOW PRESSURE" LIGHT NOT ILLUMINATED WITH PUMP SWITCH IN OFF POSITION. GROUNDED - YES. REPLACED #2 TANK AFT BOOST PUMP PRESSURE SWITCH REF B737-800 AMM 28-42-11. PERFORMED OPERATIONAL TEST REF AMM 28-42-11-700-801 2 I (1 ) THRU (15) . OPS CHECK GOOD. GROUND VERIFICATION SUCCESSFUL.
#2 ENG FAILED TO LIGHT OFF DURING STARTING START SWITCH WAS IN "L". GROUNDED - YES. CONFIRMED FAULT, #2 ENGINE L-IGNITION INOP. FOUND IGNITER LEAD DEFECTIVE. REMOVED & REPLACED IGNITION LEAD REF B737-800 AMM 74-21-01 AND REPLACED M421 LEFT IGNITION EXCITER AND MAIN IGNITER PLUG (L) AS PRECAUTIONARY REF AMM 71-11-01 & AMM 74-21-02, OPS CK NML. PULLED & RESET 2 TOTAL C/BS. AIRCRAFT RELEASED FROM MEL 74-1C, C/N 05039579. SEAMC NOTIFIED "JARRETT." REVERSAL OF CONFIGURATION CHANGES NOT REQUIRED.
# 2 ENGINE ANTI ICE COWL VALVE STUCK CLOSED AMBER TAI & BRIGHT BLUE LIGHT. GROUNDED - YES. REMOVED AND REPLACED #2 ENG COWL TAI VALVE ASSY IAW B737-800 AMM 30-21-11/401. PERFORMED ENGINE COWL TAI VALVE INSTALLATION TEST REF AMM SUBTASK 30-21-11-860-009, LEAK CHECK AND OPS CHECK SUCCESSFUL, OK FOR SERVICE.
ENGINE #2 ANTI-ICE REMAINED BRIGHT BLUE ACCOMPANIED BY AMBER TAI LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED B737-800 FIM 30-21 TASK 804. NO FAULTS FOUND. GROUND VERIFICATION OF #2 ENG COWL ANTI-ICE VALVE SUCCESSFUL. RESTORED #2 ENG ANTI-ICE VALVE PERB737-800 AMM 30-00-00-440-803.
#2 ENGINE T-12 CONNECTOR ON J8 ENGINE HARNESS HAS A LOOSE BACKSHELL. GROUNDED - YES. REMOVED AND REPLACED J8 HARNESS #2 ENGINE REF B737-800 AMM 73-21-06-000-801-F00/ 73-21-06-400-801-F00 EEC TEST GOOD. ACTUATOR CHECK GOOD REF B737-800 73-21-00-700-804-F00 / 71-00-00-700-807-F00.
DURING DESCENT WE TURNED ON THE ENGINE ANTI ICE FOR BOTH ENGINES. ONCE CLEAR OF ICING CONDITIONS AT 1200 FEET AGL, WE TURNED OFF BOTH ENGINE ANTI-ICE. THE #1 ENGINE COWL VALVE OPEN LIGHT REMAINED ILLUMINATED BRIGHT BLUE. WE CYCLED THE SWITCH AT DIFFERENT POWER SETTINGS AND INDICATION DID NOT CHANGE. GROUNDED - YES. REMOVED & REPLACED #1 ENG COWL TAI VALVE REF B737-800 AMM 30-21-11-400-801. OPS CHECK GOOD. COWL VALVE OPEN LIGHT EXTINGUISHED.
#1 ENGINE TREND DATA SHOWS A GRADUAL SHIFT IN CRUISE DELTA FUEL FLOWING INDICATION ERRORS ARE SUSPECT. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FUEL FLOW TRANSMITTER. REF B737-800 AMM 73-31-01-400-801-F01. PERFORMED #1 ENGINE LEAK CHECK OF FUEL FLOW TRANSMITTER.
RIGHT PACK LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED BIT PER B737-800 FIM 21-62 TASK 801. INITIALLY NO FAULTS NOTED. NOTED TCV FAULT ON LATER BIT CHECK. TCV FAULT CLEARED PACK OPERATED NORMALLY AT THAT TIME. SUSPECT FAULTY RH TCV. REMOVED AND REPLACED #2 PACK TCV PRECAUTIONARY REF B737-800 AMM 21-51-10-400-801. PERFORMED PZTC BITE REF AMM 21-61-00-700-806-002, OP CHECK GOOD. LEAK CHECK GOOD. ETOPS GROUND VERIFICATION SUCCESSFUL.
RIGHT PACK LIGHT ILLUMINATED. GROUNDED - YES. DURING CONTROLLER BITE TEST TCV SHOWED FAILED. REMOVED AND REPLACED RH TEMP CONTROL VALVE PER B737-800 AMM 21-51-10-400-801. OPS AND LEAK TEST GOOD.
ENG #2 ESN802325 FOUND ANTI ICE FWD DUCT OTBD LINK WORN. GROUNDED - YES. REMOVED AND REPLACED OTBD FWD ANTI ICE DUCT LINK #2 AS PER CFM56-7 PPBM 71-00-02 FIG 27-1 PG 10-11.
ENG #2 ESN 802325 FOUND 5TH STAGE "Y" DUCT ATTACH LINK TO THE CASE WORN TO LIMITS. GROUNDED - YES. REMOVED AND REPLACED 5TH STAGE "Y" DUCT ATTACH LINK TO THE CASE ON ENG #2 ESN 802325 REF CFM56-7 PPBM 71-00-02 FIG 16-1 PG3.
ENG #2 ESN802325 FOUND ANTI ICE FWD DUCT OTBD LINK LOWER BRACKET ATTACHED TO FAN FRAME HAS GOUGE ADJACENT TO ROD END. GROUNDED - YES. REMOVED AND REPLACED #2 FWD DUCT ANTI ICE COWL LINK BRACKET TO FAN FRAME AS PER CFM56 PPBM 71-00-02 FIG 6-1 PG 6-7.
ENG #2 ESN802325 FOUND ANTI ICE FWD DUCT WORN ON OTBD UPPER LINK ATTACH POINT. GROUNDED - YES. REMOVED AND REPLACED FWD #2 ANTI ICE DUCT AS PER CFM56-7 PPBM 71-00-02 FIG 27-1 PG 7-11.
RADAR SHOWS CONTINUOUS RETURNS AT 5 MILES BETWEEN 2 & 3 O'CLOCK AND 9 & 10 O'CLOCK IN CLEAR AIR, ALL MODES. GROUNDED-YES. PERFORMED OPERATIONS TEST OF RADAR SYSTEM, PER B737-800 AMM 34-43-00, NO DEFECTS NOTED, TEST PASSED.
LEFT FWD MAIN FUEL PUMP "LOW PRESSURE" ILLUMINATED AT CRUISE FL 410. GROUNDED-YES. INITIAL EVALUATION, INSPECTED P91 CB AND ASSOCIATED GFI FOR DEFECTS, NO DEFECTS. OBSERVED PUMP LOW PRESSURE LIGHT AND PUMP OPERATION, WORKS NORMALLY, AS REQUIRED. PULLED AND COLLARED CB D1 ON P91 PANEL FOR THE LT FWD PUMP. FOLLOWING B37-800 FIM 28-22 TASK 804, SHORTED PINS 2/3 ON D870 TO OBSERVE PROPER LOW PRESSURE LIGHT OPERATION, CHECKS GOOD. DUE TO HISTORY, REMOVED AND REPLACED FUEL BOOST PUMP PRESSURE SWITCH, PER B737-800 AMM 28-42-11.
FWD LEFT MAIN FUEL PUMP INOPERABLE. GROUNDED-YES. REMOVED AND REPLACED NR 1 TANK FOWARD LEFT MOTOR IMPELLER, IAW B737-800 AMM 28-22-41. OPERATIONS AND LEAK CHECK GOOD.
LEFT CENTER TANK FUEL PUMP LOW PRESSURE LIGHT DOES NOT ILLUMINATE WITH CENTER TANK FUEL DEPLETED. GROUNDED-YES. PERFORMED B737-800 FIM 28-22 TASK 820, FOUND FUEL BOOST (CENTER LEFT TANK) INOPERABLE. R & R FUEL BOOST PUMP PRESSURE SWITCH, REF B737-800 MM 28-42-11. OPERATIONS TEST PASSED, GROUND VERIFICATION SUCCESSFUL. MAINT PROCEDURES REVERSED BACK TO NORMAL. PLACARDS REMOVED, THIS CLEARS MEL 28-3F & 28-2E. SEAMC MIKE NOTFIIED. M67733 11/30/2020.
HF NR 2 SHOW FAIL IN CONTROL HEAD. GROUNDED-YES. PERFORMED NR 2 HF BITE, PER B737-800 FIM 23-11 TASK 801, LRU STATUS FAULT LIGHT ILLUMINATED. REMOVED AND REPLACED NR 2 HF TRANSCEIVER, PER B737-800 AMM 23-11-21. PERFORMED BITE, PER FIM 23-11 TASK 801. OPERATIONS CHECK GOOD.
NR 1 FWD FUEL PUMP LOW PRESSURE LIGHT BLINKING. GROUNDED-YES. DISCONNECTED D72 AND RESET C/B P91 D1. WITH NR 1 FWD PUMP ON, 115VAC CONSTANT ON ALL THREE PHASES B737-800 WDM 28-23-11. PUMP INTERNAL CASE GROUND GOOD (.1 OHM) AND INSULATION >1M BETWEEN PINS 1, 2, 3 AND CASE GROUND 4, REF B737-800 AMM 28-22-00-760-802. RECONNECTED D72, NR 1 FWD PUMP OPERATIONS NORMAL, BUT RECOMMEND REPLACEMENT DUE TO ABNORMAL CHATTERING NOISE DURING OPERATION. REMOVED AND REPLACED NR 1 FWD BOOST PUMP, REF AMM 28-22-41-000-801 AND AMM 28-22-41-400-801. OPERATIONS CHECK GOOD.
RT HORIZONTAL LOWER SKIN HAS A CRACK AT STA 129, 16 INCHES FROM T/E. GROUNDED - YES. REPAIRED RT HORIZONTAL STAB LOWER SKIN, IAW B737-800 SRM 55-10-01-2R-11. THIS IS A CATEGORY B REPAIR. INSPECTION THRESHOLD IS SET AT 56,000 CYCLES, INTERVAL IS 9,000 CYCLES. SEE B737-800 SRM 55-10-01-2R-11 TABLE 204 FOR METHODS.
AFTER ENGINE RUNS, FOUND THE NR 2 ENGINE IDG OIL COOLER LEAKING. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENG OIL/AIR COOLER IAW AMM 24-11-21 PG 401. LEAK OPS CHECKED GOOD.
LH PACK LIGHT ILLUMINATES ON RECALL EXTINGUISHES ON RESET. GROUNDED - YES. FOUND L/H RAM AIR ACT FAULT. WAS ABLE TO RESET. A/C CHECKED AND RELEASED IAW MEL 21-32B. ACCOMPLISHED PZTC BITE TEST, NO FAULT SHOWS FROM PREVIOUS FLIGHT. NO FAULT FOUND DURING TEST. REF B737-800 FIM 21-62 TASK 801. A/C RELEASED FROM MEL 21-32B.
RED BOX AROUND EGT AFTER ENGINE SHUTDOWN. GROUNDED - YES. REF B737-800 FIM 71-06 TASK 805, ACCOMPLISHED EEC BITE REF FIM 73-00 TASK 801. FOUND UPPER EGT SECTORS READING HIGH ON FLT LEG 3. ACCOMPLISHED EGT CLEANING REF B737-800 AMM 77-21-00-140-801. INITIAL READINGS: S1- 31.05, S2- 16.22, S3- 17.71, S4- 40.58. AFTER CLEANING: S1- 22.60, S2- 17.98, S3- 18.39, S4- 24.00. ACCOMPLISHED EEC TEST REF AMM 73-21-00-700-804-F00. NO FAULTS FOUND. ACCOMPLISHED FIM 71-06 TASK TASK 805. NO DEFECTS NOTED DURING PNEUMATIC CK OK.
WHILE ACCOMPLISHING T/C 78472010 #1 ENGINE FOUND #8 FAN BLADE MISSING CU-NI-IN DAMAGE BEYOND LIMITS. GROUNDED - YES. REMOVED AND REPLACED FAN BLADES #8 & #20 AS PAIR ON #1 ENG REF B737-800 AMM 72-21-02-000-802-F00.
WHILE ACCOMPLISHING T/C 78472010 #1 ENGINE FOUND MORE THAN 8 SPACERS WITH DISBONDED ELASTOMER MATERIAL. GROUNDED - YES. REMOVED AND REPLACED ALL 24 FAN BLADE SPACERS ON THE #1 ENG PER T/C 78472010.
WHILE ACCOMPLISHING T/C 78472010 #1 ENGINE FOUND REAR SPINNER CONE HAS 1 NUTPLATE WITH LOSS OF RUN ON TORQUE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG REAR SPINNER CONE PER T/C 78472010.
ON RECALL CONT CAB ZONE TEMP LIGHT ILLUMINATED, GOES OUT WHEN RESET. GROUNDED - YES. PERFORMED ZONE TEMP CONT BITE IAW FIM 21-62, TASK 801. FOUND NR 2 CONTROL FAULT, CONTROL CABIN TRIM VALVE. REMOVED AND REPLACED V143 TRIM VALVE IAW AMM 21-61-211. OPS CHECKED GOOD.
ON ARRIVAL APU MAINT LIGHT ILLUMINATED ON APU START. GROUNDED - YES. BITE TEST APU FOR FAULTS. OIL QUANITY LOW FAULT LOGGED. SERVICED APU OIL AS REQUIRED.
CONTROL CABIN TEMP SELECTOR ADJUSTED TO NEAR FULL WARM POSITION, ABLE TO INCREASE/DECREASE TEMP ON SUPPLY DUCT GAUGE BUT FLIGHT DECK CONTINUES TO BE VERY COLD. GROUNDED - YES. REMOVED & REPLACED FLIGHT DECK TCV (V143) PER B737-800 AMM 21-61-21, LK CK & OPS CK NML. PULLED & RESET 1 TOTAL C/B. ALSO, REMOVED & REPLACED TEMPERATURE CONTROL MODULE (P5-17) AS PRECAUTIONARY REF AMM 21-61-15. PULLED & RESET 4 TOTAL C/BS. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER (R/H) BITE TEST REF AMM 21-61-00-700-806-002, GROUND VERIFICATION CK NML. VERIFIED CORRECT PARTS EFFECTIVITY REF IPC 21-61-07-03 & IPC 21-61-21-02.
AT LEVEL OFF, #1 AFT FUEL PUMP "LOW PRESSURE" LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED B737-800 FIM 28-22 TASK 803 FOUND GFI "POPPED", RESET GFI AND RETESTED BOOST PUMP - NO HELP - LEFT #1 AFT GFI "POPPED". REPLACED #1 AFT FUEL BOOST PUMP PER B737-800 AMM 28-22-41. OPS CHECK AND LEAK CHECK GOOD. A/C RETURNED TO NORMAL CONFIG.
"FAIL" INDICATED ON RADIO CONTROL PANEL FOR HF #2. GROUNDED - YES. VERIFIED FAIL INDICATED FOR HF #2. PERFORMED B737-800 FIM 23-11 TASK 801. #2 HF BITE AND XMTS NORMAL. GRD VERIFICATION OK.
FUEL TEMP GAGE INOP. GROUNDED - YES. REMOVED AND REPLACED FUEL TEMP INDICATOR. REF B737-800 AMM TASK 28-43-21-020-802. OP CHECKED PER AMM TASK 28-43-00-710-801. OP CHECKS NORMAL. ETOPS GROUND VERIFICATION SUCCESSFUL.
FUEL LOW PRESSURE LIGHT ILLUMINATED TANK #1 AFT WITH FUEL PUMP SWITCH ON. GROUNDED - YES. REMOVED AND REPLACED #1 AFT FUEL BOOST PRESSURE SW REF B737-800 AMM 28-42-11, OPS CHECK NORMAL PER SAME. REMOVED AND #1 AFT BOOST PUMP GFI RELAY R18 REF AMM 28-22-10 OPS CHECK NORMAL PER AMM 28-22-41.
#1 AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED DURING CRUISE IMMEDIATELY AFTER PERFORMING FUEL CROSS FEED CHECK. LIGHT STAYED ON APPROX 2 MIN UNTIL PUMP WAS TURNED OFF. AFTER PUMP BEING OFF FOR 5 MINUTES, TURNED PUMP BACK ON AND LOW PRESSURE LIGHT WENT OUT AND STAYED OUT REMAINDER OF FLIGHT. GROUNDED - YES. REF B737-800 FIM 28-22 TASK 803. (1) C/B RESET. COULD NOT DUPLICATE FAULT. OPS TEST NORMAL. GROUND VERIFICATION GOOD.
ON W/A FOUND EXCESSIVE AMOUNT OF OIL DRIPPING FROM #2 ENG REAR TURBINE FLANGE/FLAME ARRESTOR AFTER 4HRS @ SHUT DOWN. APPROX 1 DROP EVERY 2 SECOND. GROUNDED - YES. ACCOMPLISHED IDLE RUN FOR 5 MIN AT THE DIRECTION OF PWR PLANT TECH SERVICE. AFTER SHUT DOWN STILL LEAKING AT SAME RATE. PER TSR 703997 REMOVED AND REPLACED LUBE UNIT REF B737-800 AMM 79-21-01. PERFORMED IDLE-POWER LEAK CKS, GOOD. NO LEAK NOTED. .
WXR FAIL MESSAGE- CA AND FO ND. GROUNDED - YES. CYCLED POWER, RE ALIGNED ADIRU REF B737-800 AMM 34-21-00 OPS CK GOOD. A/C OK FOR SERVICE.
DURING TAXI, NR 1 GEN SOURCE LIGHT ILLUMINATED. RAN QRH SOURCE OFF CHECKLIST. EXTINGUISHED WHEN APU GEN ON BUSS. GROUNDED - YES. REMOVED & REPLACED ENGINE NR 1 IDG IAW AMM 24-11-11.
#1 SOURCE OFF LIGHT ILLUMINATED AT TOP OF DESCENT. RAN QRH SOURCE OFF CHECKLIST. SOURCE OFF LIGHT EXTINGUISHED WHEN APU RUNNING AND ON BUS. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 24-21 TASK 823. ALL CHECK NORMAL DETERMINED TO BE AN INTERMITTENT FAULT. CREW PERFORMED ENG RUN AND GROUND VERIFICATION WAS SUCCESSFUL. A/C OK FOR SVC. NO FAULT NOTED AT THIS TIME.
AUTOLAND UNSUCCESSFUL. AT APPROX 100 FT AGL, A/C TURNED HARD RIGHT AND AUTOPILOT HAD TO BE DISCONNECTED TO MAINTAIN CONTROLLED FLIGHT. LANDED MANUALLY. ALL INDICATIONS NORMAL DOWN TO 100' AGL. (NOTE: HGS AIII OPERATED NORMALLY). GROUNDED - YES. DFCS 1&2 SHOW NO FAULTS LOGGED LAST 5 FLTS. PERFORMED FIM 22-11 TASK 825 - LAND VERIFY TEST AMM 22-11-00 GOOD. HGS OPERATIONAL/SYSTEM TEST GOOD REF SMM 34-36-00.
HF NR 1 SHOWING FAIL ON ACTIVE AND STANDBY. GROUNDED - YES. CYCLED A/C POWER & BATT OFF & ON. FAIL LIGHT CLEARED C/W FIM TASK 23-11, 802 & HF TRANSCIEVER BITE TEST TASK 23-11, 801. NO FAULTS INDICATED. OPS NORMAL.
DURING CLIMBOUT, LEFT ENG ANT-ICE, YELLOW TAI LIGHT BLINKING FROM 3,000-10,000, ALSO BLINKING IN CRUISE AT FL400 ENG AI SWITCHES WERE OFF. GROUNDED - YES. REMOVED AND REPLACED L/H ENGINE COND TAI VALVE, PER B737-800 AMM 30-21-11. OPS CHECK GOOD.
AMBER TAI INDICATION LEFT ENGINE INTERMITTENTLY ON WITH ENGINE A/I SWITCH "OFF" POSITION AT CRUISE 380 FOR SEVERAL MINUTES AND AGAIN BELOW 7000 FEET ON DESCENT. NORMAL GREEN INDICATION OBSERVED WITH A/I SWITCH "ON". GROUNDED - YES. C/W WITH OPERATIONAL TEST OF #1 ENG COWL ANTI-ICING REF: B737-800 AMM TASK 30-21-00. NO DEFECTS NOTED, SYSTEM OPERATES NORMALLY.
ZONE TEMP LIGHT ILLUMINATES DURING RECALL AND EXTINGUISHES AFTER RESET. GROUNDED - YES. ACCOMPLISHED TEMP CONTROLLER BITE CHECKS ON BOTH TEMP CONTROLLERS REF B737-800 AMM 21-61-00 NO FAULTS FOUND. GROUND VERIFICATION CHECKS NORMAL.
TEMP PROBE LIGHT ON IN FLIGHT. GROUNDED - YES. REMOVED AND REPLACED TAT PROBE, OPS CHECKED GOOD PER AMM 34-21-06.
L SIDE WINDOW OVERHEAT, CHECKLIST COMPLETED OPS NORMAL. GROUNDED - YES. ACCOMP WINDOW HEAT OVHT/ PWR TEST, TEST PASS REF AMM 30-41-11-860-004.
HEADING SELECT LIGHT ON MODE CONTROL PANEL HDG SEL INDICATED ON FMA AT ALL TIMES WHEN SELECTED. GROUNDED - YES. DUE TO HISTORY, REMOVED & REPLACED DFCS MCP REF AMM 22-11-34. ACCOMPLISHED INSTALLATION TEST REF AMM 22-11-34-740-801, LRU REPLACEMENT TEST (GP 32) REF AMM 22-11-34, DFCS LAND VERIFY TEST (GP 49) REF AMM 22-11-00, HGS SYSTEM TEST REF SMM 34-36-00, OPS CK NML.
HDG SELECT DOES NOT LIGHT UP WHEN ENGAGED (HDG SELECT ENGAGES BUT LIGHT ON SWITCH DOES NOT LIGHT UP). TESTED GOOD ON PREFLIGHT LIGHTS TEST. GROUNDED - YES. ACCOMPLISHED MCP INSTALL TEST AMM 22-11-34 OPS CHECK NORMAL.
RIGHT CENTER FUEL LOW PRESSURE LIGHT ILLUMINATED WITH 19.6 IN CENTER TANK. GROUNDED - YES. REPLACED R55 AND R963 RELAYS FOR THE RIGHT CENTER TANK BOOST PUMP SYSTEM REF WDM 28-23-11/4, OPS NML REF B737-800 FIM 28-22 TASK 802. SYSTEM GROUND VERIFICATION CHECK SUCCESSFUL.
DURING CLIMB OUT KPDX PASSING ABOUT 20,000 MSL, RIGHT CTR FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED. COMPLETED QRH PAGE 12.8/9. GROUNDED - YES. REPLACED RELAY R937 AND RELAY R935 REF WDM 28-23-11/3, OPS NML REF B737-800 FIM 28-22 TASK 802. SYSTEM GROUND VERIFICATION SUCCESSFUL. J4 ACCESS PANEL LEAK CHECK GOOD.
HF#2 DISPLAYS FAIL/FAIL WHEN SELECTED ON BOTH CA AND FO COMM PANELS. GROUNDED - YES. UPON AIRCRAFT POWER UP, HF 1&2 SHOW NO FAIL/FAIL ON RTPS' WHEN SELECTED REF FIM'S 23-12 TASK 812, AND 23-11 TASK 811. HF 2 TRANSMIT/RECEIVE ESTABLISHED, LRU BITE TESTS GOOD. GROUND VERIFICATION TESTS GOOD.
RIGHT CENTER LOW PRESSURE LIGHT ILLUMINATED IN FLT AFTER TAKE OFF AT 2,000 FT. FUEL IN CENTER TANK AT THE TIME 4,300 LBS. GROUNDED - YES. ACCOMPLISHED FUEL BOOST PUMP PRIMING REF AMM 28-22-41, NO HELP. REMOVED AND REPLACED RIGHT CENTER FUEL BOOST PUMP PRESSURE SWITCH REF AMM 28-42-11. ACCMPLISHED FUEL BOOST PUMP OPERATIONAL TEST REF AMM 28-22-41-710-801, OPS CHECK AND LEAK CHECK GOOD.
DURING AFTER START CHECKLIST RECALL MASTER CAUTION FUEL AND RIGHT CENTER TANK LOW PRESSURE LIGHT ILLUMINATED. GROUNDED - YES. REMOVED & REPLACED R/H CTR FUEL BOOST PUMP REF AMM 28-22-41 RESET C/B ON P92 PNL OPS & LK CK GOOD REVERSED CONFIG CHANGES.
FOUND OUTER SHEATH WIRE HARNESS DAMAGE ON J10 HARNESS NEAR T3 PROBE CHANNEL IS CONNECTOR: #2 ENGINE (ESN 802325). GROUNDED - YES. ACCOMPLISHED ENGINE WIRING HARNESS REPAIR. THIS REPAIR IS TEMPORARY UNTIL THE NEXT ENGINE SHOP VISIT REF AMM 70-70-01. PLT CREATED FOR ITEM.
FOUND J9 HARNESS TO HAVE CUT AND DAMAGED HARNESS METAL BRAIDING; #2 ENGINE. GROUNDED - YES. REMOVED REPLACED J9 HARNESS REF AMM 73-21-06. OPS TEST GOOD.
HF-2 FAIL LTS ON FOR HF-2. GROUNDED - YES. ACCOMPLISHED #2 HF COMMUNICATION SYSTEM TEST. TEST GOOD; TRANSMIT AND RECEIVE ON #2 HF SATISFACTORY. BITE TEST ON #2 HF TRANSCEIVER GOOD. REF B737-800 AMM 23-11-00. GROUND VERIFICATION SUCCESSFUL.
AT CRUISE WX RADAR DOES NOT COME OUT OF TEST MODE, TEST PATTERN ON BOTH CA AND FO DISPLAYS TEST MODE IS SHOWN NO MATTER WHAT POSITION TEST SW IS IN. GROUNDED - YES. CYCLED WX RT C/B P-61 PANEL, PERFORMED OPERATIONAL TEST OF WX PER AMM 34-43-00, OPS CHECK NORMAL.
RIGHT PACK LIGHT ILLUMINATED ON CLIMB OUT RESET PER QRH PROCEDURES. GROUNDED - YES. PERFORMED ZONE TEMP CONTROLLER BITE ALL PASS GO PER B737-800 AMM 21-61-00.
RIGHT PACK LIGHT ILLUMINATED IN FLIGHT AFTER RUNNING QRH PACK LIGHT EXTINGUISHED. GROUNDED - YES. BITE TEST OF #1 AND #2 PACK/ZONE TEMP CNTLR SHOWS NO CURRENT FAULT, NO FAULT LAST FLIGHT LEG AND VERIFY TEST ALSO PASSED REF B737-800 AMM 21-61-00-700-806-002, DURING VERIFY PART OF #2 PACK/ZONE TEMP CTL TEST NOTICED THAT RAM AIR INLET DEFLECTOR DOOR REMAINS OPEN.
WHILE ACCOMPLISH TC 78472010 ON #2 ENGINE S/N 802325 FOUND MISSING /CHIPPED CU-N1-IN BEYOND AREA X ON FWD CONVEX SIDE OF BLADES 2-9,11,12,14,15,18 AND 20-24 PER AMM 72-21-02-200-801-F01. GROUNDED - YES. REPLACED ALL 24 FAN BLADES ON #2 ENGINE REF T/C 78472010 CFM56-7 FAN BLADE LUBRICATION.
DURING OUR CLIMB OUT OF 8,000 FT THE R/H PACK LIGHT ILLUMINATED. GROUNDED - YES. REF THE QRH PAGE 2.12 WE TURNED TEMP SELECTORS TO WARMER TEMP THEN PUSHED THE TRIP RESET SWITCH. THE PACK LIGHT EXTINGUISHED.
SAT PHONE NO TRANSMIT OR RECEIVE, SEEMS TO DIAL FINE. GROUNDED - YES. REMOVED & REPLACED SATCOM IRIDIUM TRANSCEIVER REF B737-800 AMM 23-15-00 1C/B OPEN & CLOSED, INSTALLATION TEST PASSED.
SATCOM 1&2 UNABLE TO TRANSMIT BUT COULD RECEIVE INCOMING VOICE TRANSMISSIONS. CPDLC WORKED. ACARS OVER SATCOM WORKED. GROUNDED - YES. PERFORMED SATCOM #1 & #2 VOICE TEST, INCOMING CALL & OUTGOING CALL TEST NORMAL PER B737-800 AMM 23-15-00-730-801.
SATCOM LOCKUP ON PWR TRANSFER EXT TO APU. GROUNDED - YES. ACCOMPLISHED RESET PROCEDURE PER QRH. CLEARED SATCOM LOCKUP.
DURING CLIMB OUT OF FOG RIGHT PACK LIGHT ILLUMINATED FOLLOWED QRH AND RESET TRIP RIGHT PACK LIGHT WENT OUT ONLY TO RE-ILLUMINATE SEVERAL MINUTES LATER. FOLLOWED QRH CLOSED ISOLATION VALVE AND TURNED OFF RIGHT PACK. GROUNDED - YES. C/W FIM 21-53 TASK 818 OPERATED RIGHT PACK AND PERFORMED BITE TEST NO FAULTS FOUND. PACK LIGHT FOR RIGHT PACK DID NOT ILLUMINATE PERFORMED GROUND VERIFICATION OF RIGHT PACK/ZONE TEMP CONTROLLER REF FIM 21-62 TASK 801 NO DEFECTS NOTED AT THIS TIME.
RIGHT PACK CAUTION LIGHT ILLUMINATED DURING CLIMB ACCOMPLISHED QRH LIGHT EXTINGUISHED CONTINUE OPS. GROUNDED - YES. PERFORMED RIGHT PACK OPS BITE CHECK PER AMM 21-61-00 NO FAULTS FOUND.
HF RADIO PARTIAL FAIL- HF RADIO NR 1 UNABLE TO TRANSMIT SIDE TONE CONTINUOUS FOR AN HOUR. GROUNDED - YES. PERFORMED FIM 23-11 TASK 801 NR 1 AND NR 2 HF TASKS. PERFORMED HF COM SYSTEM TEST PER FIM 23-11 TASK 806. OPS CHECK NORMAL, NO DEFECTS NOTED.
CABIN FLOOR SUPPORT AT STA 540 FROM BL 0 TO RBL 25 IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED FLOOR SUPPORT IAW SRM 51 40 02 0G 0.
RT STA 951 FRAME CORR AT WL 209. GROUNDED - YES. REPAIRED DAMAGE TO FRAME IAW EA 800 53EA 21150 THIS IS A CAT B REPAIR WITH AN INSPECTION THRESHOLD OF 75,000 TOTAL FLT. CYCLES W 1.5 O .195 R .167 L 1.8 D .028.
STA 986 CORRODED AT RT GIRT BAR FITTING MOUNT HOLE. GROUNDED - YES. REPAIRED FLOORBEAM IAW EA 800 53EA 21149 W 2 O .150 R .101 L 2 D .049.
STA 270 HAS BARE METAL BETWEEN LBL 12 AND RBL 12. GROUNDED - YES. UPON FURTHER INVESTIGATION FOUND STA 270 BETWEEN LBL12 AND RBL12 TO BE CORR. REMOVED CORR FROM STA 270 WAS BETWEEN LBL12 AND RBL12 FOUND TO BE OUT OF LIMITS IAW SRM 53 10 51 1A 1 STEP 4C.2 FIG 105 DETAIL C REPAIRED STA 270 BETWEEN LBL12 AND RBL12 IAW EA 800 53EA 21162 REV 00 DATE 25JAN19 W 1 O .050 R .040 L 24 D .010.
LT HORIZ STAB LOWER SKIN CRACKED STAB STA 128 APPROX 12 INCHES FWD OF REAT SPAR. GROUNDED - YES. REPAIRED LT HORIZ STAB LWR SKIN CRACK AT STAB STA 128 APPROX 12 INCHES FWD OF REAR SPAR IAW SRM 55 10 01 2R 11 REPAIR 11 THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56000 FLT. CYC. WITH REPEAT INSPECTIONS AT 9,000 FLT. CYC. INTERVALS AS DESCRIBED IN SRM 55 10 01 2R 11 REPAIR 11 PARA 5 TABLE 204.
BS 947 FLOORBEAM CORRODED ON O/B SIDE OF LT LAV SUPPORT FITTING. GROUNDED - YES. REPAIRED BS 947 FLOORBEAM CORRODED O/B SIDE OF LT LAV SUPPORT FITTING IAW SRM 53 70 51 2R 5 REPAIR #5 W 1.5" O .180 R .130 L 1.5" D .050.
FWD CARGO PIT RT STA 500H AFT BAFFLE CLIP CRACKED. GROUNDED - YES. REMOVED FWD CARGO PIT RT STA 500H AFT BAFFLE CLIP IAW SRM 51 40 02 0G 0 STEP 4E, LOCATED AND DRILLED NEW BAFFLE CLIP IAW SRM 51 40 05 0G 0 FIG 2 INSTALLED NEW CLIP IAW SRM 51 40 02 0G 0 STEPS 4 AND 7.
FWD CARGO PIT LT 500H FRAME FWD BAFFLE CLIP CRACKED. GROUNDED - YES. REMOVED AND REPLACED FWD CARGO PIT LT 500H FRAME FWD BAFFLE CLIP IAW SRM 51 40 02 0G 0.
FWD CARGO PIT RT STA 500G FRAME FWD BAFFLE CLIP CRACKED. GROUNDED - YES. REMOVED AND REPLACED FWD CARGO PIT RT STA 500G FRAME FWD BAFFLE CLIP IAW SRM 51 40 02 0G 0.
FWD CARGO PIT LT STA 500H FRAME AFT BAFFLE CLIP CRACKED. GROUNDED - YES. REMOVED AND REPLACED FWD CARGO PIT LT STA 500H FRAME AFT BAFFLE CLIP IAW SRM 51 40 02 0G 0.
FWD CARGO PIT RT STA 500H FRAME FWD CLIP CRACKED. GROUNDED - YES. REMOVED AND REPLACED FWD CARGO PIT RT STA 500H FRAME CLIP IAW SRM 51 40 02 0G 0.
FWD CARGO PIT LT 500G FRAME FWD BAFFLE CLIP CRACKED. GROUNDED - YES. REMOVED AND REPLACED FWD CARGO PIT LT 500G FRAME FWD BAFFLE CLIP IAW SRM 51 40 02 0G 0.
FWD CARGO PIT RT STA 500F FRAME FWD BAFFLE CLIP CRACKED. GROUNDED - YES. REMOVED AND REPLACED BAFFLE CLIP AT FWD CARGO COMPARTMENT RH STA 500F, IAW SRM 51 40 02 0G 0 ITEM 7 PAGE 4.
RT HORIZ STABILIZER LOWER SKIN IS CRACKED AT STAB STA 128 APPROX 9.5 IN. FWD OF REAR SPAR. GROUNDED - YES. REPAIRED RT HORIZ STAB LWR SKIN CRACK AT STAB STA 128 APPROX 9.5 IN. FWD OF REAR SPAR IAW SRM 55 10 01 2R 11 REPAIR 11 THIS IS A CAT. B REPAIR WITH AN INSPECTION THRESHOLD OF 56000 FLT. CYC. WITH REPEAT INSPECTIONS AT 9,000 FLT. CYC. INTERVALS AS DESCRIBED IN SRM 55 10 01 2R 11 REPAIR 11 PARA. 5 TABL 204.
BS 986 FLOORBEAM CORR AT GIRT FITTING NUT PLATE LT SIDE. GROUNDED - YES. REPAIRED FLOORBEAM IAW EA 800 53EA 21149 W 2 O .150 R .116 L 2 D .034.
AFT PIT TRANSITION PANEL HAS AREAS OF CORR FROM STA 727+10 TO STA 747. GROUNDED - YES. BLENDED DAMAGED AREA, FOUND TO BE OUT OF LIMITS IAW SRM 53 00 53 1A 2, FABRICATED NEW TRANSITION PANEL RT STA 727+10 TO 747 IAW SRM 53 00 53 2R 5 W 1 O .040 R .020 L 100" D .020.
AFT PIT LT TRANSITION PANEL HAS AREAS OF CORR FROM STA 727+8 TO STA 830. GROUNDED - YES. REMOVED CORR FROM AFT PIT LT TRANSITION PANEL FROM STA 727+8 TO STA 830, FOUND TO BE IN LIMITS BETWEEN STA 727+8 AND 727G+8 AND 727I+D AND 830 IAW SRM 53 00 53 1A 2 FIG 103 DETAIL D RESTORED FINISH IAW AMM 51 21 47 370 802 AND AMM 51 21 71 370 802, REMOVED CORR FROM AFT PIT LT TRANSITION PANEL STA 727G+8 TO 727I+12, FOUND TO BE OUT OF LIMITS IAW SRM 53 00 53 1A 2 FIG 103 DETAILD REPAIRED LT TRANSWITION PANEL STA 727G+8 TO 727I+12 IAW SRM 53 00 53 2R 5 RPAIR 5 W 1 O .040 R .018 L 6 D .022.
UPON NDT OF LT PRESSURE WEB AT STA 663 FOUND CRACK IN THE CENTER MACHINED POCKET. GROUNDED - YES. REPAIRED LT PRESSURE WEB AT STA 663 IAW SRM 57 10 10 2R 3 REPAIR 3 ALTERNATIVE 1, THIS IS A CATEGORY B REPAIR INSP. THRESHOLD 56000 FLT. CYCLES REPEAT INSP INTERVAL 36,000 FLT. CYCLES IAW SRM 57 10 10 2R 3 REPAIR 3 ALTERNATIVE 1 NOTE: CAT B. ENTERED INTO WORKFRONT FOR TRACKING PURPOSES.
HF #1 WILL NOT TRANSMIT. HF #1 WILL RECEIVE AND TUNE. HF #1 WILL RECEIVE SELCAL. GROUNDED - YES. R&R #1 HF TRANSCEIVER IAW B737-800 AMM 23-11-21 OPS CHECK NORMAL.
NR 1 ENG WOULD NOT START, START VALVE LIGHT (OPEN) ILLUMINATED NORMALLY W/ LEFT SIDE DUCT PRESSURE BUT NO N2. GROUNDED - YES. REMOVED AND REPLACED NR 1 ENG STARTER IAW AMM 80-11-01-400-801 OPS TEST NRML AGB DRIVE PAD + CHIP DETECTOR LEAK CK GOOD.
AFT R2 DOOR EXT EMERGENCY LIGHT INOP. GROUNDED - YES. RELAMP R2 DOOR EXIT EMERGENCY LIGHT PER AMM 33-51-04.
RT PRIMARY HEAT EXCHANGER PLENUM FAILED DURING HEAT EXCHANGER WASH T/C 78121000. GROUNDED - YES. REMOVED AND REPLACED RT PRIMARY HEAT EXCHANGER PLENUM REF AMM 21-51-03.
LT SECONDARY HEAT EXCHANGER DIFFUSER WORN OUT OF LIMITS. GROUNDED - YES. REMOVED AND REPLACED LT SECONDARY HEAT EXCHAGER DIFFUSER REF AMM 21-51-03.
LT PRIMARY HEAT EXCHANGER DIFFUSER WORN OUT OF LIMITS. GROUNDED - YES. REMOVED AND REPLACED LT PRIMARY HEAT EXCHANGER DIFFUSER REF AMM 21-51-03.
LT PRIMARY HEAT EXCHANGER PLENUM FAILED DURING HEAT EXCHANGER WASH PER T/C 78121000 GROUNDED - YES. REMOVED AND REPLACED LT HEAT EXCHANGER PLENUM REF AMM 21-51-03.
LT SECONDARY HEAT EXCHANGER PLENUM DELAMINATED. GROUNDED - YES. REMOVED & REPLACED LT SECONDARY HEAT EXCHANGER PLENUM REF AMM 21-51-03.
RT SECONDARY HEAT EXCHANGER DIFFUSER WORN OUT OF LIMITS. GROUNDED - YES. REMOVED AND REPLACED SECONDARY HEAT EXCHANGER DIFUSER REF AMM 21-51-03.
RT SECONDARY HEAT EXCHANGER PLENUM FAILED DURING HEAT EXCHANGER WASH T/C 78121000. GROUNDED - YES. REMOVED SECONDARY HEAT EXCHANGER ASSEMBLY AND REPLACED PLENUM REF AMM 21-51-03. INSTALLED RT PRIMARY & SECONDARY HEAT EXCHANGERS & PLENUM DIFFUSERS REF AMM 21-51-03-400-804-002.
ZONE TEMP LIGHT ILLUMINATED. GROUNDED - YES. CONFIRMED FAULT NR 2 PACK ZONE TEMP CONTROLLER SHOWS HARD FAIL FLIGHT DECK TCV (V143). REMOVED & REPLACED FLIGHT DECK TCV REF AMM 21-61-21, LK CK & OPS CK NML REF AMM 21-61-00-700-806-002.
FA REPORTS L1 DOOR DIFFICULT TO CLOSE. GROUNDED - YES. APPLIED LUBRICATION ON L1 DOOR HINGE. OPS CHECK GOOD. NO INDICATION OF WORN COMPONENTS AT THIS TIME. REF FIM 52-10 TASK 807 GVI ACCOMPLISHED.
WHILE ACCOMPLISHING NR 1 ENG INLET INSP T/C 78472000, FOUND AFT O/B LWR FASTENER LOOSE ON 3 O'CLOCK STRUT FAIRING. GROUNDED - YES. REMOVED STRUT FAIRING TO ALLOW ACCESS TO NUTPLATES. REMOVED & REPLACED NUTPLATE REF B737-800 SRM 51-40-02. REINSTALLED STRUT FAIRING REF AMM 72-23-03-000-802-F00 & AMM 72-23-03-400-802-F00.
WHILE ACCOMPLISHING NR 1 ENG INLET INSP T/C 78472000, FOUND DUCT ATTACH LINK WORN. (2ND LINK ABOVE THE HIGH STAGE VALVE). GROUNDED - YES. REMOVED & REPLACED DUCT ATTACHMENT & HARDWARE REF IPC 36-11-01-02.
UPON LANDING, BOTH FMC P/RST LIGHTS ILLUMINATED WITH THE SPEED BRAKE DO NOT ARM LIGHT. THE FMC LOST ALL FLIGHT PLAN INFO WITH BOTH FMC P/RST EXTINGUISHING AND THE SPEED BRAKE DO NOT ARM LIGHT REMAINED ON. GROUNDED - YES. ACCOMPLISHED FMC BITE PROCEDURE B737-800 FIM 34-61 TASK 801 NO FAULTS FOUND, ACCOMPLISHED SPEED BRAKE DO NOT ARM FIM 27-62 TASK 805 NO FAULTS FOUND.
DURING PREFLIGHT, THE RIGHT SIDE FWD FUEL LOW PRESSURE LIGHT ILLUMINATED. ACFT GROUNDED. OPS CHECKED THE RIGHT SIDE FWD FUEL BOOST PUMP, OPS NORMAL IAW AMM 28-22-41. REMOVED AND REPLACED R21 GFI RELAY AND P5-2 FUEL SYS MODULE AS PRECAUTION IAW AMM 28-22-18/401, AND 28-22-43/401. PERFORMED AN OPS CHECKS FOR THE PRESS SWITCH, BOOST PUMP, GFI RELAY, AND P5-2 FUEL SYS MODULE, ALL CHECKED GOOD IAW AMM 28-42-11, 28-22-41, AND 28-22-43.
NR 2 FWD LOW PRESSURE LIGHTS ILLUMINATED WITH PUMP SWITCH ON (FUEL). GROUNDED - YES. REMOVED AND REPLACED THE NR 2 FUEL TANK FWD BOOST PUMP MOTOR IMPELLER ASSY REF AMM 28-22-41-000-801 AND 28-22-41-400-801, NR 2 FWD BOOST PUMP OPERATIONAL TEST PASS REF AMM 28-22-41-710-801.
NR 2 FWD BOOST PUMP LOW PRESSURE LIGHT REMAINS ILLUMINATED WITH SWITCH ON. GROUNDED - YES. REMOVED AND REPLACED NR 2 FWD BOOST PUMP REF AMM 28-22-41. OPS TEST GOOD REF AMM 28-2241-710-801.
RIGHT PACK LIGHT ILLUMINATES DURING MASTER RECALL & EXTINGUISHES UPON MASTER CAUTION RESET. GROUNDED - YES. CONFIRMED FAULT, RT PACK/ZONE TEMP CONTROLLER BITE SHOWS HARD FAIL, RT RAM AIR INLET ACTR. REMOVED & REPLACED RT RAM AIR INLET ACTR REF AMM 21-51-21, OPS CK NORMAL REF AMM 21-61-00-700-806-002.
LEFT PACK LIGHT ILLUMINATES ON RECALL. EXTINGUISHES ON RESET. GROUNDED - YES. BITE OF THE LEFT PACK/ZONE TEMP CONTROLLER PER FIM 21-62 TASK 801 SHOWED "RAM AIR ACT" FAULT FOR "BIT" AND "PREV FLT" BUT "VERIFY" TEST DID NOT CONFIRM FAULT - LEFT PACK RAM AIR ACTUATOR PASSED VERIFY TEST. DUE TO HISTORY, REMOVED, REPLACED, AND TESTED LEFT PACK RAM AIR INLET ACTUATOR PER AMM 21-51-21-000-801/21-51-21-400-801 - ALL TESTS PASS. CLEARS MEL 21-32B.
PRIOR TO TOP OF DESCENT, THE LT PACK LIGHT ILLUMINATED ON RECALL AND EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. VERIFIED LT PACK LIGHT ILLUMINATES ON RECALL. ACCOMPLISHED FIM 21-62, TASK 801. NR 1 CONTROLLER RAM AIR ACTUATOR FAULT CLEARED. PACK LIGHT REMAINS OFF ON RECALL.
ON RECALL, RIGHT PACK MASTER CAUTION ILLUMINATED. EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED FIM 21-62, TASK 801. OPS CHECKED GOOD. NO HISTORY PAST 30 DAYS.
DURING FAN LUBE OF THE NR 1 ENGINE, FOUND PLATFORMS ELASTOMER SEALS DAMAGED, MORE THAN 39.37 INCH. ACFT GROUNDED.
RIGHT SIDE WINDOW OVERHEAT ILLUMINATED DURING CLIMB THROUGH FL220. PERFORMED QRH, WAITED 5 MINUTES WITH RIGHT WINDOW SIDE HEAT OFF, THEN TURNED BACK ON, OVERHEAT ILLUMINATED AGAIN IMMEDIATELY. ACFT GROUNDED. PERFORMED WINDOW HEAT CONTROL UNIT BITE IAW FIM 30-41 TASK 801, FAULTED WHCU. PRECAUTIONARALLY CHECKED RESISTANCE OF WINDOW HEATING ELEMENT AND SENSOR IAW FIM 30-41 TASK 809 AND 30-41 TASK 811, BOTH ARE WITHIN LIMITS. REMOVED WHCU IAW AMM 30-41-000-801. INSTALLED WHCU IAW AMM 30-41-11-400-801. PERFORMED WHCU INSTALLATION TEST, TESTED GOOD. PERFORMED WINDOW HEAT CONTROL UNIT SYSTEM TEST IAW AMM 30-41-11-710-801, TEST PASSED.
HF 1 SHOWS FAIL MESSAGE. ACFT GROUNDED. PERFORMED HF 1 BITE IAW FIM 23-11/ 801. NO FAULTS. HF DISPLAY WINDOW NORMAL, OPERATED THE NR 1 HF, OPS NORMAL, NO FAULTS.
THE NR 2 GENERATOR OFF BUSS AND SOURCE OFF LIGHT ILLUMINATED, AFTER START, FLOW THE GEN LIGHTS CAME ON ABOUT 30 SECONDS AFTER THE GENERATOR WAS SELECTED. THE GENERATOR WOULD NOT COME BACK ON LINE THE APU GENERATOR POWERED THE BUSS NORMAL. ACFT GROUNDED. ISOLATED THE PROBLEM TO FAULTY IDG. REMOVED FILTER, CLEAN IAW AMM 24-11-11-80-801. IDG OIL DRAINED. REMOVED AND REPLACED THE NR 2 ENGINE IDG IAW AMM 24-11-11-400-801, OPS AND LEAK CHECKED GOOD.
START VALVE OPEN LIGHT ILLUMINATED ON THE CENTER DU FOR NR 1 ENGINE. GROUNDED - YES. PERFORMED FIM 80-07 TASK 809, FOUND CONTINUITY BETWEEN PINS 4 AND 5 OF START VALVE. REMOVED AND REPLACED START VALVE REF AMM 80-11-03. OPS CHECK AND LEAK CHECK GOOD.
FUEL LEAKING FROM THE NR 2 ENGINE. ACFT GROUNDED. RAN ENGINE AND FOUND RT VSV LEAKING. REMOVED AND REPLACED THE NR 2 ENGINE VSV ACTUATOR IAW AMM 75-31-01. ACCOMPLISHED VSV ACTUATOR LEAK CHECK AND TEST IAW AMM 75-31-01-790-801-F00. LEAK TESTED GOOD, NO LEAKS. ACCOMPLISHED TESTS ON POWERPLANT TEST IAW TABLE, ACTUATORS TEST, TEST 12 OPS CHECKED GOOD. AND IDLE LEAK CHECK TEST 3A, LEAK CHECKED GOOD.
AIRSPEED NUMBER IN IAS/MACH WINDOW FROZE, KNOB WOULD TURN BUT THE AIRSPEED NUMBER AND AIRSPEED BUGS WOULD NOT CHANGE. THE PROBLEM OCCURED ON DESCENT IN KSEA WHEN CHANGING FROM VNAV TO LVL CHNG. PROBLEM COULD NOT BE FIXED BY RETURNING TO VNAV. GROUNDED - YES. PERFORMED ALT DEACTIV PROC 05-07-07 TABLE 3 ITEM 1 REMOVED AND REPLACED DFCS MODE CONTROL PANEL OPS CHECK GOOD REF AMM 22-11-34.
IAS/MACH SPEED FROZE. THE KNOB TURNED BUT SPEED DID NOT MOVE. GROUNDED - YES. DFCS BITE TEST SHOWS "FMC DATA INVALID" LAST FLIGHT LEG ON CHANNEL A AND B, REF FIM 22-11 TASK 801. PERFORMED BITE CHECK OF FMC SYSTEM, NO FAULTS FOUND. MCP TESTS NML, REF FIM 22-11 TASK 803. NO HISTORY LAST 30 DAYS. GROUND VERIFICATION TESTS PASSED.
CAPTAIN'S COURSE SELECTOR WINDOW UNREADABLE, SCRATCHED ON MCP IN BRIGHT SUNLIGHT. ACFT GROUNDED. VERIFIED IAW AMM 22-11-34, REMOVED & REPLACED THE MCP. OPS NORMAL. REQUIRED LLM MAINT TEST FOR MCP PERFORMED, NO DISCREPANCY.
NR 1 ENGINE TREND DATA SHOWS A SUDDEN SHIFT IN CRUISE DELTA FUEL FLOW INDICATION ERRORS ARE SUSPECT. GROUNDED - YES. REMOVED & REPLACED NR 1 ENGINE FUEL FLOW TRANSMITTER REF AMM 79-31-01. PERFORMED LEAK CKS, OPS CKS AND EEC BITE CKS. ALL CKS GOOD, NO DEFECT NOTED.
DUAL FMC FAIL DURING PREFLIGHT. FMC PROMPTS MISSING FROM MENU AND RESUMED NORMAL OPS AFTER 10 SECONDS. GROUNDED - YES. ONLY LT FMC FAILED DURING PRE-FLIGHT. BITE CHECKED BOTH LT AND RT FMC REF FIM 34-61 TASK 801. LT & RT FAULTED ON GND - LT FMC. PERF FIM 34-61 TASK 807. W/ NO DEFECTS. ETOPS GND VERIFICATION TEST SUCCESSFUL.
#1 ENGINE TREND DATA SHOWS EGT INDICATION TO HAVE GREATER THAN EXPECTED SCATTER. INDICATION ERRORS ARE STILL SUSPECT. GROUNDED - YES. REMOVED AND REPLACED CJ10 CORE ENG HARNESS PER TECH SERVICE REQUEST USING B737-800 AMM 73-21-06-000-803-F00. OPS TEST PASSED PER AMM 73-21-06-400-803-F00.
WHILE ACCOMPLISHING A NR 1 ENGINE INLET INSPECTION, FOUND A WORN DUCT ATTACH LINK. SECOND LINK ABOVE THE HIGH STAGE VALVE. ACFT GROUNDED. REMOVED AND REPLACED THE LINK ASSEMBLY ON THE NR 1 ENGINE IAW CFM 71-00-02.
DURING TAXI, ZONE TEMP CONTROL CABIN LIGHT CAME ON. ACFT GROUNDED. NR 2 PZTC BITE SHOWS FLT DECK TRIM VALVE FAULT. ACCOMPLISHED PZTC RESET PROCEDURE IAW FIM 21-62, TASK 802, FAULT CLEARED, NO CURRENT FAULTS.
SPEED TRIM FAIL LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. FOUND MCP DC1 CIRCUIT BREAKER TRIPPED. PERFORMED A CIRCUIT BREAKER RESET IAW AMM 20-60-01. SPEED TRIM FAIL LIGHT REMAINED EXTINGUISHED ON RECALL. PERFORMED DFCS BITE, TEST PASSED IAW FIM 22-11, TASK 801. NO FURTHER DEFECTS NOTED AT THIS TIME.
NR 2 ENGINE XB ILLUMINATED DURING CLIMB & DESCENT. ACFT GROUNDED. ACCOMPLISHED TROUBLESHOOTING FOR THE NR 2 ENGINE XB INDICATION IAW FIM 76-05 TASK 809. FAULT ISOLATION SHOWED THE NR 2 ENGINE START LEVER CHANNEL A INPUTS TO DEU-1 AND DEU-2 SHOWED CUTOFF WITH LEVER IN IDLE POSITION. THE NR 2 ENGINE EEC BITE SHOWED FAULT 76-31362 THE START LEVER SIGNALS DISAGREE LOGGED FOR SIX OUT OF TEN STARTS. ACCOMPLISHED TROUBLESHOOTING FOR FAULT 76-31362 IAW FIM 76-11, TASK 801, VERIFIED START LEVER INPUTS TO R568 START LEVER RELAY WERE OUT OF LIMITS. REMOVED AND REPLACED M1825 ENGINE START BRAKE ASSY IAW AMM 76-11-10-010-801-F00, AND 76-11-10-420-801-F00. PERFORMED ENGINE FUEL SPAR VALVE ELECTRICAL CONTROL AND INDICATION TEST IAW AMM 28-22-00-710-801, EEC TEST IAW AMM 73-21-00-700-804-F00, EEC DISCRETES TEST IAW AMM 73-21-00-700-809-F00, ENGINE IGNITION SYSTEM AUDIBLE TEST IAW AMM 74-00-00-750-801-F00, AND POWERPLANT TEST NR 13 ENGINE RUN - EEC BITE CHECK IAW AMM 71-00-00-700-808-F00 - ALL TESTS PASSED.
AFTER NR 2 ENGINE SHUTDOWN, THE ENG FAIL FOR THE NR 2 ENGINE ANNUNCIATION APPEARED ALONG WITH EGT INDICATION REMAINING ACTIVE. BOTH DISAPPEARED ABOUT ONE MINUTE LATER. ACFT GROUNDED. EEC BITE SHOWS RECENT FAULTS AND GROUND TESTED OK IAW FIM 73-00, TASK 801, AND AMM 73-21-00. EEC BITE, AND GROUND TESTED NR 2 ENGINE START SWITCH. TESTED OK AND IDLE RUN OK IAW AMM 80-11-00-703-801-F00. PSEU BITE SHOWS NO EXISTING FAULTS IAW FIM 32-09, TASK 801.
DURING PREFLIGHT, FOUND THE NR 2 ENGINE FAIL LIGHT ILLUMINATED OVER THE NR 2 EGT GAUGE AND GAUGE WAS STILL INDICATING TEMP. ACFT GROUNDED. REBOOTED ACFT POWER, THE NR 2 ENGINE FAIL LIGHT EGT TEMP STILL DISPLAYING. PERFORMED FIM 73-05, TASK 805, ENGINE FAIL MESSAGE. ACCOMPLISHED EEC BITE FOUND START SIGNAL DISAGREE 76-31362 CYCLED START LEVERS EGT TEMP WENT OUT. RAN BOTH ENGINES #2 ENGINE EGT TEMP REMAINED ON AFTER SHUT DOWN ENGINE FAIL LIGHT REMAINED EXTINGUISHED. PERF EEC BITE, LEG 0 SHOWS FAULT 76-31362 START SIGNAL DISAGREE CYCLING START LEVERS WILL MAKE EGT TEMP TURN OFF. T/S TO #2 ENGINE START BRAKE ASSEMBLY. PER FIM 76-11 TASK 801 (SIG) FURTHER T/S SUGGEST START SW. REMOVED AND REPLACED #2 START SWITCH PER B737-800 AMM 80-11-00-400-801-F00. TEST OK PER AMM 80-11-00-730-801-F00. AIRCRAFT BACK TO SERVICE.
SHORTLY AFTER TAKE OFF, XB APPEARED ON NR 2 ENGINE N2. NO INDICATION OF ENGINE FAILURE OR MALFUNCTION. AFTER 11000 FT AND APPROXIMATELY 300 KTS, XB EXTINGUISHED. XB ANNUNCIATED AGAIN DURING DESCENT, SLOWING THRU 290 KTS. ACFT GROUNDED. FOUND PSEU MESSAGE, ENG RUN RT FAULT, MESSAGE 52-72018. PERFORMED FIM 52-20, TASK 803. NO DEFECTS NOTED.
WINDOW OVERHEAT CAUTION LIGHT ILLUMINATED FOR THE RIGHT SIDE. ACCOMPLISHED QRH AND LIGHT REMAINED ILLUMINATED. ACFT GROUNDED. FOUND THE CIRCUIT BREAKER OPEN. WINDOW HEAT CONTROL RT SIDE ON P18-3. . RESET THE CIRCUIT BREAKER IAW AMM 20-60-01. OPS TESTED IAW AMM 30-41-00. TESTED OK. CIRCUIT BREAKER STAYS IN AND NO FAULTS ON CONTROLLER.
GE DIAGNOSTICS REPORTED THE NR 1 ENGINE TREND DATA SHOWS ERRATIC FUEL FLOW PARAMETERS DURING CRUISE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE FUEL FLOW TRANSMITTER IAW AMM 73-31-01. LEAK AND OPS CHECKED GOOD.
APU FUEL LINE SHROUD, DRAIN MAST CRACKING AT BASE. INSPECTION FOUND SHROUD CRACKED AT FWD RT BASE. ACFT GROUNDED. REMOVED AND REPLACED APU FUEL LINE SHROUD DRAIN MAST IAW AMM 28-25-07.
NR 1 ENGINE INLET AND FAN BLADES DETAILED INSPECTION FOUND START VALVE AFT MOUNT ATTACH LINK HAS BOTH ROD END BEARINGS BAD. ACFT GROUNDED. REPLACED THE ATTACH LINK ATTACHED TO THE AFT MOUNT FOR THE START VALVE AND DUCTING IAW AIPC 54-51-51 AND SRM 51-40-02.
NR 2 HF, IN FLIGHT WOULD TUNE & TRANSMIT FOR APPROXIMATELY 10 SECONDS THEN FAIL. WOULD DISPLAY FAIL ON BOTH THE ACTIVE & STANDBY SCREENS. IDENTICAL DISPLAYS ON CAPTAIN`S & FIRST OFFICER`S SIDES. ACFT GROUNDED. PERFORMED FIM 23-11, TASK 801, NO FAULTS FOUND. FAULT IS INTERMITTENT. REMOVED AND REPLACED NR 2 HF TRANSCEIVER IAW AMM 23-11-21-000-801, AND AMM 23-11-21-400-801. OPS CHECKED AND GROUND VERIFICATION WAS GOOD.
LEFT WING TO BODY OVERHEAT LIGHT ILLUMINATED AT FL350. RAN QRH & DESCENDED. LIGHT EXTINGUISHED.DURING DESCENT THRU 15,500 FEET AFTER RUNNING QRH FROM PREVIOUS WRITE-UP, RIGHT WING TO BODY OVERHEAT ILLUMINATED. RAN QRH, CONTINUED DESCENT, LIGHT EXTINGUISHED AROUND 9,500 FEET. ACFT GROUNDED. FOUND RT BLEED AIR DUCT BLOWN OUT AT END OF DUCT. INSTALLED A NEW DUCT AT RT BLEED FWD AND OPS CHECKED NORMAL. NO LEAKS IAW AMM 26-18, TASK 801.
NR 2 ENGINE LEAKING FUEL AT 24 DROPS PM. LEFT VSV LEAKING. ACFT GROUNDED. REPLACED THE LEFT VSV ACTUATOR ON THE NR 2 ENGINE IAW AMM 75-31-01. VSV ACTUATOR LEAK TESTED GOOD. REINSTALLED HIGH STAGE VALVE IAW AMM 36-11-06. LEAK TESTED GOOD. PERFORMED TEST 12, ACTUATORS TEST IAW AMM 71-00-00-700-807-F00. TESTED OK. PERFORMED 5 MINUTE IDLE LEAK CHECK, LEAK TESTED GOOD IAW AMM 71-00-00-700-801-F00, TEST 3A.
NR 1 ENGINE VIBRATION INDICATOR INTERMITTENTLY BLANKS OUT AND THEN REAPPEARS. ACFT GROUNDED. CONFIRMED FAULT, M1240 ENGINE VIBRATION SIGNAL CONDITIONER, VIBROMETER BITE IAW FIM 77-05 TASK 804, SHOWS ENGINE NR 1 N2 TACHO LOSS E1 MESSAGES LAST 32 FLIGHTS. ACCOMPLISHED FIM 77-31 TASK 805, TROUBLESHOT TO DEFECTIVE N2 SPEED SENSOR. REMOVED & REPLACED N2 SPEED SENSOR IAW AMM 77-11-02, GROUND FUNCTIONAL CHECK NORMAL IAW AMM 77-00-00.
PILOT REPORTS THE APU WOULD NOT START ON FIRST ATTEMPT. FAULT LIGHT ILLUMINATED. APU HAS A HISTORY OF MULTIPLE CSS ATTEMPTS WITH FAULT LIGHT. ACFT GROUNDED. REMOVED AND REPLACED THE APU FUEL CONTROL UNIT IAW AMM 49-31-11. LEAK AND OPS CHECKED GOOD. REMOVED AND REPLACED APU LUBE MODULE IAW AMM 49-91-11. LEAK AND OPS CHECKED GOOD. NO MAINTENANCE MESSAGE ON APU BITE.
ACCOMPLISHED T/C 78273000, FOUND ECONOMIC FAULT CODE 77-20871 THE TOP LEFT EGT OUT OF RANGE NR 1 ENGINE. ACFT GROUNDED. FOUND T49.5 S4 PROBE RESISTANCE VALUE OUT OF RANGE. REMOVED & REPLACED T49.5 S4 PROBE. OPS CHECK GOOD, REF B737-800 FIM 77-21 TASK 804, AMM 77-21-01, AND IPC 77-21-01-01.
RIGHT PACK CAUTION ILLUMINATED ON TAKEOFF. FOLLOWED QRH TO STEP 3, PACK CAUTION EXTINGUISHED WITH TRIP RESET. ACFT GROUNDED. RT PACK RAM AIR PRIMARY DIFFUSER ASSEMBLY FAN BYPASS CHECK VALVE DOOR AND DOOR HINGE PINS FOUND MISSING FROM THE PRIMARY DIFFUSER. ACCOMPLISHED CONDITIONAL INSPECTION FOR PART DEPARTS AIRPLANE IAW AMM 05-51-59/201. NO FURTHER DAMAGE NOTED. REMOVED AND REPLACED THE RT PACK RAM AIR PRIMARY DIFFUSER FROM THE PLENUM IAW AMM 21-51-03-000-805-002 STEP 2G(24). R/H A/C PACK LEAK AND OPS CHECK GOOD IAW AMM 21-51-03-400-804-002 STEP 3J. R/H AC PACK OPERATES NORMALLY IAW FIM 21-53 TASK 806 STEP E. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST IAW AMM 21-61-00, NR 1 & 2 SYS BOTH OPS NORMAL, NO FAULTS NOTED. OVERHEAD PACK ANNUNCIATORS REMAIN EXTINGUISHED WITH MASTER RECALL.
RIGHT PACK PRIMARY AND SECONDARY HEAT EXCHANGERS DEFECTIVE. ACFT GROUNDED. REMOVED AND REPLACED THE RT PACK PRIMARY AND SECONDARY HEAT EXCHANGERS IAW AMM 21-51-03-000-805T-002, & AMM 21-51-03-400-804-002. REMOVED AND REPLACED THE RT ACM IAW AMM 21-51-04-000-802-002 & 21-51-04-400-802-002. THE RAM AIR PRIMARY DIFFUSER ASSEMBLY FAN BYPASS CHECK VALVE DOOR WAS FOUND MISSING & WAS REPLACED. RIGHT A/C PACK LEAK AND OPS CHECKED GOOD IAW AMM 21-51-04-400-802-002, STEP 3I.
RIGHT PACK LIGHT ILLUMINATED IN FLIGHT. COMPLETED QRH PROCEDURE AND LIGHT WENT OUT. ACFT GROUNDED. ACCOMPLISHED BITE TEST FOR RT PACK, ZONE TEMP CONTROLLER IAW AMM 21-61-00, NO FAULTS NOTED. ACCOMPLISHED FIM 21-53, TASK 806. RT PACK LIGHT ON DURING CLIMB & STAYS OFF AFTER RESET, FAULT ISOLATION FOR SUSPECTED RAM AIR DOOR SYSTEM AND FIM 21-53, TASK 810 RT PACK LIGHT ON DURING CRUISE & STAYS OFF AFTER RESET, FAULT ISOLATION FOR SUSPECTED DIRTY HEAT EXCHANGERS. ACCOMPLISHED GVI FROM RT RAM AIR INLET, NO FAULTS NOTED
AUTOTHROTTLE ARM SWITCH LIGHT DOES NOT ILLUMINATE. ACFT GROUNDED. NO DEFECTS FOUND, AUTOTHROTTLE ARM LIGHT OPS OK.
RIGHT PACK LIGHT ILLUMINATED ON TAKEOFF ROLL. RAN QRH & LIGHT EXTINGUISHED. NO FURTHER ACTION REQUIRED. ACFT GROUNDED. CHECKED ACAUS FOR FAULTS. NO FAULT CODES NOTED. ACCOMPLISHED PRECAUTIONARY REPLACEMENT OF RT TRIM AIR CHECK VALVE IAW AMM 21-61-09.
AT ROTATION ON TAKEOFF THE RIGHT PACK LIGHT ILLUMINATED. RAN THE PACK QRH PAGE 7.12 AND THE PACK LIGHT EXTINGUISHED WHEN THE TRIP RESET SWITCH WAS PRESSED. ACFT GROUNDED. PERFORMED PACK ZONE TEMP CONTROL BITE IAW AMM 21-51-00, NO FAULTS FOUND. PERFORMED RT PACK LIGHT ON FAULT ISOLATION IAW FIM 21-53 TASK 806 STEPS E AND F(1). NO DEFECTS NOTED. OK FOR CONTINUED SERVICE.
RIGHT PACK LIGHT ILLUMINATED WITH RIGHT PACK OFF. ACFT GROUNDED. NR 2 ZONE TEMP CONT SHOWS THE PACK TCV ON BITE, WILL NOT RESET. REPLACED RT TCV IAW MM 21-51-10-000-801, AND 21-51-10-400-801. OPS CHECKED OK. RESTORED ACFT TO ORIGINAL CONFIGURATION.
OXYGEN MASKS AFT F/A, LEFT JUMP SEATS DEPLOYED AFTER TAKEOFF. F/A REPORTED AN ODOR OF SOMETHING BURNING IN THE BACK OF ACFT, AFTER AFT OXYGEN MASKS DEPLOYED. ACFT GROUNDED. INSPECTED THE OXYGEN GENERATOR HEAT SENSITIVE BAND, FOUND TO BE SERVICABLE. RELEASE PIN STILL INSTALLED IN FIRING PIN. REPACKED THE OXYGEN MASKS AT AFT F/A LEFT JUMPSEAT IAW AMM 35-22-31-420-801-001. PERFORMED FIM 05-51, TASK 814 FOR THE CABIN ODOR. INSPECTED CABIN AND CARGO BAYS FOR ANY SOURCE OF CONTAMINATION, NONE FOUND. RAN BOTH A/C PACKS, NO ODORS NOTICED. RAN BOTH COFFEEMAKERS, WARMING PLATES, AND OVENS IN AFT GALLEY, NO FUMES OR SMOKE DETECTED. INSPECTED ALL AFT LAVATORIES, NO BURNING ODORS DETECTED. CONFIRMED AFT JUMPSEAT OXYGEN GENERATORS WERE NOT ACTUATED. NO HISTORY OF SIMILAR ODORS OR SMOKE IN THE LAST 15 DAYS. NO FURTHER ACTION REQUIRED. CONDITIONAL INSPECTION AMM 05-51-56 COMPLIED WITH.
DURING PREFLIGHT, PRESSURIZATION PANEL HAD A AUTO FAIL AND ALTN LIGHT ON WITH SWITCH IN AUTO. ACFT GROUNDED. CYCLED THE SWITCH TO MANUAL AND BACK TO AUTO. NO LIGHTS ILLUMINATED. NR 1 AND 2 PRESSURE CONTROLLERS BITE AND OPS NORMAL. NO CURRENT FAULTS FIM 21-31 TASK 827 AND 21-31 TASK 801.
AFT CARGO BAY FLOOR PANEL 140CF HAS DEEP GOUGES AND CORROSION AROUND EDGES. ACFT GROUNDED. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-1. FABRICATED A NEW FLOOR PANEL IAW SRM 51-40-05-0G-0.
FWD CARGO BAY FLOOR PANEL NR 4 CORRODED. ACFT GROUNDED. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-1. FABRICATED A NEW FLOOR PANEL IAW SRM 51-40-05-0G-0.
FWD CARGO COMPARTMENT FLOOR PANEL 1 CORRODED. GROUNDED - YES. REMOVED CORR FROM FWD CARGO COMPARTMENT 1 FLOOR PANEL AND FOUND TO BE OUT OF LIMITS IAW SRM 53 00 53 1A 1. FABRICATED NEW FLOOR PANEL IAW SRM 51 40 05 0G 0 W 2" O .071 R .050 L 20" D .021.
AFT CARGO BAY INTERCOSTAL AT BS 727A - 727B, STRINGER 25L IS CORRODED ON THE LOWER SIDE. ACFT GROUNDED. BLENDED THE CORROSION ON THE INTERCOSTAL AND FOUND IT TO BE OUT OF LIMITS IAW SRM 53-60-53-1A. INSTALLED A NEW INTERCOSTAL IAW SRM 51-40-02-0G-0.
FWD CARGO BAY RT TRANSITION PANEL CORRODED BETWEEN BS 500B - 500I. ACFT GROUNDED. REMOVED THE CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2, DETAIL D. REPAIRED THE TRANSITION PANEL IAW SRM 53-00-53-2R-5.
LEFT HORIZONTAL STAB LOWER SURFACE SKIN AT HSS 101.90, FOUND TO BE CRACKED. ACFT GROUNDED. REPAIRED THE STAB SKIN IAW SRM 55-10-01-2R-11.
UNABLE TO PLACE SAT PHONE CALL IN SPEED DIAL DIRECTORY. ONLY USED NR 2 SAT PHONE. ACFT GROUNDED. ACCOMPLISHED SATCOM COMMUNICATION SYSTEM TEST IAW AMM 23-15-00-730-801, OPS CHECKED GOOD.
EMERGENCY LIGHTS FAILED FUNCTIONAL TEST. GROUNDED. REMOVED & REPLACED THE BATTERIES. OPS GOOD IAW AMM 33-51-06-960-805.
ACCOMPLISHED NG-28FCD-18090-1, NR 2 FQIS COMPENSTATOR & TANK UNITS TEST. THE FOLLOWING PROBES ARE OUT OF TOLERANCE AND REQUIRE REPLACEMENT. COMP, F1, F2, F3, F8, F9, AND F10. GROUNDED - YES. REF MIG 2C'S AND ASA T/C 78528000 FOR RII AND SAFETY PRECAUTIONS. REMOVED, REPLACED AND TESTED #2 TANK COMP UNIT, AND TANK UNITS F1, F2, F3, F8, F9, AND F10. ALL OPS NML REF MM 28-41-21. GROUND VERIFICATION SATISFACTORY.
FUEL GAGES READ NORMAL AT TAKE OFF BUT CLIMBING THROUGH 5000' FUEL IMBALANCE LIGHT ILLUMINATED - LEFT MAIN TANK INITIALLY READ 1400 LB LOWER THAN THE RIGHT MAIN. THEN LATER ESTABLISHED AT 1000 LB DIFFERENCE. GROUNDED - YES. REF MIG-2C'S AND TASKCARD 78528000 FOR RII AND SAFETY PRECAUTIONS. REF LOG 11757074 ACCOMPLISHED NG-28FCD-18088-1, REMOVED, REPLACED, AND TESTED NR 1 TANK COMPENSATOR, AND TANK UNITS F1, F6, F7, F8, F9, & F10 IAW AMM 28-41-21-000/400-801. ALL TESTS PASS, OK FOR SERVICE. CLEARS MEL 28-12B AND MEL 28-6B.
APU HAS A HISTORY OF OIL SERVICING. CURRENT OIL CONSUMPTION IS HIGHER THAN EXPECTED. ACFT GROUNDED. REMOVED APU EGT THERMOCOUPLE 1,IAW AMM 49-71-21-000-801. INSPECTED APU TURBINE EXHAUST DUCT FOR EXCESSIVE OIL LEAKAGE WITH FLEXIBLE BORESCOPE IAW FIM 49-95-TASK 801. NO DISCREPANCIES NOTED. REINSTALLED APU EGT THEMOCOUPLE 1, IAW AMM 49-71-21-400-801. OPS TESTED GOOD. ACCOMPLISHED STEPS 1 AND 2 OF THIS TSR, IAW FIM TASK 49-95 TASK 801. FOUND APU OIL COOLER INTERNAL AND EXTERNAL CONTAMINATION OF AIR FINS. REMOVED AND REPLACED APU OIL COOLER, IAW AMM 49-91-41. OPS AND LEAK CHECKED GOOD.
F/O'S COURSE SELECTOR INTERMITTENTLY WILL NOT SELECT 163 DEGREES. GROUNDED - YES. CONFIRMED. REMOVED & REPLACED DFCS MODE CONTROL PANEL, REF AMM 22-11-34. OPS NORMAL PER SAME. DFCS LRU INTERFACE TEST BITE NR 32 AND LAND VERIFY NR 49 GOOD, REF AMM 22-11-00. HGS SENSOR TEST FOR FCC / AT GOOD, REF SMM 34-36-00. A/C REMAINS CAT IIIA AUTOLAND-HGS QUALIFIED. LWMP STATUS PLACARD CHECKED. STATUS SCREW IS IN CAT IIIA - HGS QUALIFIED POSITION.
RIGHT PACK LIGHT ILLUMINATED AFTER ROTATION. RAN QRH, TRIP RESET PUSHED, RIGHT PACK LIGHT EXTINGUISHED. ACFT GROUNDED. RT PACK/ZONE TEMP CONTROLLER BITE SHOWS PACK TCV (V141) FAULT. REMOVED & REPLACED THE RT PACK TCV IAW AMM TASK 21-51-10, LEAK & OPS CHECKED NORMAL.
RIGHT PACK LIGHT ILLUMINATED AT GATE BOTH PACKS IN AUTO, ISOLATION VALVE IN OPEN ALL THREE ZONE CONTROL IN AUTO, ATTEMPTED QRC RESET, UNABLE TO CLEAR. ACFT GROUNDED. IAW FIM TASK 21-62 TASK 831, FOUND NR 2 TEMP CONTROL TCV FAULT. ACCOMPLISHED BITE & RESET FAULT. OPS NORMAL. OK FOR SERVICE.
NR 2 ENGINE FAILS TO ROTATE. NO N2, NO N1 WHEN CONFIGURED FOR START. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE STARTER IAW AMM 80-11-01. ALL OPS AND LEAKS CHECKED GOOD.
NR 1 AUTOPILOT DROPPED OFF & REENGAGED IT. ACFT GROUNDED. REMOVED AND REPLACED THE DFCS MODE CONTROL PANEL IAW AMM 22-11-000-801 AND 22-11-34-400-801. MODE CONTROL PANEL INSTALLATION TEST PASSED IAW AMM 22-11-34-740-801.
ON DESCENT RECALL CHECK CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED. GOES OUT ON RESET. ACFT GROUNDED. PERFORMED BITE CHECKS ON TEMP CONTROLLERS. FIM 21-61-00 810-801 PERFORMS NORMAL. GROUND VERIFICATION CHECKED NORMAL.
F/A REPORTED THE FLOURSCENT EMERGENCY EXIT LIGHT STRIP, A BEAM FWD CLOSET, ON AISLE FLOOR (LEFT) COMING LOOSE. ACFT GROUNDED. REPLACED THE EMERGENCY LIGHT IAW AMM 33-51-15.
APU WOULD NOT START. FAULT LIGHT ILLUMINATED. ACFT GROUNDED. FAULT HISTORY SHOWS MAINT. MESSAGE 49-41180 IGNITION UNIT SHOWS HIGH CURRENT. PERFORMED GVI ON APU WIRING HARNESS AND WIRING CHECKS BETWEEN P3 CONNECTOR AND P13 CONNECTOR. CHECKED GOOD IAW FIM 49-40 TASK 804. PERFORMED APU START. NO CURRENT FAULTS AND START GOOD IAW AMM 49-11-00.
NR 1 ENGINE ANTI-ICE VALVE INOPERATIVE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE COWL ANTI-ICE VALVE IAW AMM 30-21-11. GROUND VERIFICATION WAS NORMAL.
DURING CLIMB OUT AT 7000 FT, NOTED DUCT PRESSURE SPLIT. N1 LEFT 95.7, RIGHT 95.7. N2 LEFT 99.3, RIGHT 99.0. DUCT PRESSURE LEFT 40 PSI, RIGHT 28 PSI. AT FL400 LEFT 35 PSI, RIGHT 22 PSI. ACFT GROUNDED. TROUBLESHOOTING ACCOMPLISHED, IAW FIM 36-10-00-810-807 AND AMM 36-12-00-700-801. FOUND PRE-COOLER CONTROL VALVE FAULTY. REPLACED PRE-COOLER CONTROL VALVE IAW AMM 36-12-02/401. PERFORMED OPS CHECK, REF ENGINE BLEED CROSSOVER CHECK IAW AMM 36-11-00-710-801. ALL PRESSURES NORMAL. ALL WORK PERFORMED ON NR 2 ENGINE.
ON RECALL FLIGHT, CONTINUE LIGHT ILLUMINATED, SPEED TRIM FAIL LIGHT ILLUMINATED BOTH EXTINGUISHED ON RESET. ACFT GROUNDED. ACCOMPLISHED FIM 22-11, TASK 801 DFCS BITE, CURRENT STATUS PASS. FLIGHT FAULT AND FDE FAULT 22-1186. R & R FCC A IAW AMM 22-11-33, OPS CHECKED NORMAL. ACCOMPLISHED LAND VERIFY IAW AMM 22-11-00 AND HGS SENSOR TEST FCC/AT, ALL GROUND FUNCTIONAL TESTS PASS.
ZONE TEMP, CONTROLLER CABIN ILLUMINATED UPON RECALL ON DESCENT. ACFT GROUNDED. RIGHT PZTC LOGGED, FLT DECK TRIM VALVE FAULT. COULD NOT DUPLICATE MALFUNCTION. VERIFIED INSTALLED TRIM VALVE WAS A -5 PN. VALVE PASSED NUMEROUS BITE CHECKS. RAN PACK FOR 45 MINUTES WHILE VARYING SELECTED TEMPERATURE. UNABLE TO GET VALVE TO FAIL. ALL CHECKS NORMAL REF FIMS 21-62, TASK 832 & 842.
SATCOM LOCKUP, ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. SATCOM RESTORED NORMAL.
L1 DOOR EXTERIOR EMERGENCY EGRESS LIGHT INOPERATIVE. ACFT GROUNDED. RELAMPED L1 EMERGENCY LIGHT. OPS CHECK GOOD IAW AMM 33-51-04-960-801.
AUTOPILOT "A" BEGAN OSCILLATING UP AND DOWN 30' AT CRUISE. FL360 SAT-53C 265 KTS .798 MACH. TRIM WHEEL MOVED CONTINUOUSLY FORWARD AND AFT. SELECTED AUTOPILOT B AND OSCILLATING STOPPED. RE-SELECTED AUTOPILOT A AND OSCILLATIONS CONTINUED. SWITCHED BACK TO AUTOPILOT B AND NO OSCILLATIONS. ACFT GROUNDED. CONFIRMED DEFECT, STABILIZER TRIM SENSOR A READS 0.00 VAC AT ALL STAB POSITIONS. R AND R STABILIZER POSITION SENSOR A IAW AMM 22-11-31-000-801, 22-11-31-400-801. PERFORMED STABILIZER POSITION SENSOR ADJUSTMENT IAW AMM 22-11-31-820-801 AND DFCS GROUP 44, STAB SENSOR LRU REPLACEMENT, TEST IAW AMM 22-11-31-710-801. ALL TESTS PASSED. PERFORMED FULL DFCS GROUP NR 60, BITE LIBRARY TEST, IAW AMM 22-11-00-740-806, DFCS GROUP NR 49, LAND VERIFY, TEST IAW AMM 22-11-00-700-801, AUTOTHROTTLE OPS TEST IAW AMM 22-31-00-710-801, AND HGS SYSTEM TEST IAW HGS AMM 34-36-00. ALL TESTS PASSED. ACFT IS QUALIFIED FOR CAT IIIA AUTOLAND AND HGS OPS AND STATUS PLACARD REFLECTS SAME.
INFLIGHT NR 1 AFT FUEL PUMP LIGHT, DURING CROSSFEED, OPS WORKED NORMAL. DURING CROSSFEED OPS ON GROUND NR 1 AFT FUEL LIGHT INOPERATIVE WITH SWITCH IN OFF POSITION. ACFT GROUNDED. FOUND LOOSE CONNECTOR PLUG, TIGHTENED PLUG. OPS NORMAL.
APU CT5ATP EGT TREND DATA SHOWS EGT HAS SHIFTED ABOVE THE MAINTENANCE THRESHOLD OF 593 BUT LESS THAN 605 DEGREES. ACFT GROUNDED. R & R APU FUEL NOZZLES REF AMM 49-31-14-400-801 AND IPC 49-31-14-02, ITEM 20. ACCOMPLISHMENT OF THIS MAINTENANCE TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. MEL 49-99A IS REQUIRED PRIOR TO FLIGHT. MEL 49-99A APPLIED, REF LOG PAGE 11496565.
R2 DOOR WILL NOT CLOSE PROPERLY AND IS NOW JAMMED. ACFT GROUNDED. FOUND DOOR OUT OF SEQUENCE. RESEQUENCED DOOR, DOOR OPERATES NORMALLY AND NO FAULTS FOUND.
NR 1 TANK AFT FUEL PUMP "LOW PRESSURE" LIGHT DOES NOT ILLUMINATE WITH PUMP OFF. ACFT GROUNDED. FOUND CORROSION ON CONNECTOR D868 CONTACTS. R & R D868 CONNECTOR IAW SWPM 20-61-00. APPLIED CORROSION INHIBITING COMPOUND, CIC IAW SWPM 20-60-03. ALL OPS CHECKS NORMAL, REF AMM 28-42-11. DEFECT CLEARED.
AIRCRAFT FUELER REPORTS NR 2 TANK GAUGE FAIL RT WING TANK. ACFT GROUNDED. R & R NR 2 TANK REFUELING QTY INDICATOR REF AMM 28-41-61. BONDING AND OPS CHECKS OK.
MOMENTARY DUAL FMC FAILURE AND "VTK" FLAG ON BOTH CAPT AND F/O'S SIDES AT ABOUT 6000' DECENDING INTO DESTINATION, CAME BACK ON BOTH SIDES WITHIN 1 MINUTE. ACFT GROUNDED. GROUND FUNCTIONAL CHECK GOOD IAW AMM 34-61-00-710-801 AND 34-61-00-730-801.
FUELER ADVISES UNABLE TO FUEL ACFT. TANK 2 GAUGE AT SINGLE POINT PANEL A BLANK, TANK 2 INDICATION IN FLIGHT DECK NORMAL. ACFT GROUNDED. R & R 2 REFUEL QUANTITY INDICATORS IAW AMM 28-41-61, OPS CHECK GOOD.
APU START PRESSURE LOW. ACFT GROUNDED. TURNED APU OFF ALLOWED TO SIT FOR 8 MINUTES. STARTED APU, APU TESTS GOOD IAW AMM 49-11-00. SUSPECT APU INLET GUIDE VANE ICING DUE TO BRW WEATHER CONDITIONS. OK FOR SERVICE.
NR 2 ENGINE REAR TURBINE FLANGE ASSY IS CRACKED AT ALL INNER BOLT LOCATIONS. ACFT GROUNDED. REPLACED NR 2 TRF FLANGE IAW AMM 72-56-00-400 F2 & 3.
SATCOM LOCK-UP. ACFT GROUNDED. ACCOMPLISHED SATCOM RESET PROCEDURES IAW QRH. SATCOM OPS NORMAL.
APU FAULT LIGHT AFTER LANDING UPON START UP. ACFT GROUNDED. PERFORMED FIM 49-40, TASK 802, REPLACED APU IGNITION UNIT IAW AMM 49-41-31. APU STARTS AND OPERATES NORMALLY, NO FAULT INDICATED.
LANDING ALTITUDE WINDOW ON PRESSURIZATION CONTROLLER BLANKED. ACFT GROUNDED. R & R CABIN PRESSURE CONTROL MODULE IAW AMM 21-31-02-400-801.
WHILE HOLDING OVER FUNTER PLANNING AN RNP APPROACH, AN "FMS DIAGREE" LIGHT ILLUMINATED ON BOTH CAPT AND FO NAV DISPLAYS. COMPLETED QRH PROCEDURE AND CONDUCTED A CONVENTIONAL APPROACH. ALL GPS, NAV INPUT SHOWED NORMAL, ANP ALWAYS BETWEEN 0.02 AN 0.05. AFTER ABOUT 7 MINUTES LIGHT EXTINGUISHED. ACFT GROUNDED. REF FIM 34-61, TASK 835, REBOOT BOTH FMC SYS. BITE CHECK GOOD.
EXIT LIGHT COVER DETACHED FROM MID-CABIN OVERHEAD POSITION. ACFT GROUNDED. INSPECTED LIGHT ASSY NO DEFECTS FOUND, REINSTALLED & SECURED FWD FACING MID CABIN LIGHT COVER, OPS CKS GOOD.
NO SATCOM ON MAIN MENU. ACFT GROUNDED. ACCOMPLISHED SATCOM RESET PROCEDURES IAW QRH. SATCOM RESTORED NORMAL.
"FMC DISAGREE" ON TAXI OUT, ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. FMCS RESTORED NORMAL. MESSAGE NO LONGER DISPLAYED.
SPLIT PACK DUCT PRESSURE IN CRUISE FLT 350- RT, PACK UNDULATING 22PSI, LT PACK INDICATING 41 PSI. ACFT GROUNDED. ACCOMPLISHED NR 2 ENGINE BLEED AIR SYSTEM HEALTH CHECK IAW TASK CARD NG-36WC-00001. R & R NR 2 ENGINE PRSOV REF AMM 36-11-04. OPS AND LEAK CHECKS GOOD. R & R NR 2 ENGINE PRECOOLER CONTROL VALVE REF AMM 36-12-02. OPS AND LEAKS GOOD. PERFORMED ENGINE BLEED AIR CROSSOVER OPS TEST REF AMM 36-11-00-710-801. OPS TEST GOOD.
EMERGENCY LIGHT EXIT LOCATOR SIGN AT L-2 DOOR HAS BROKEN LENS. ACFT GROUNDED. R & R LENS AND TESTED LIGHT ASSY IAW AMM 33-51-01-960-801. OPS NORMAL.
RIGHT SLIDING WINDOW CRACKED. ACFT GROUNDED. R & R WINDOW HEAT CONTROL UNIT FOR RT SLIDING WINDOW IAW AMM 30-41-11-000-801. WINDOW HEAT SYS, OPS TEST NORMAL IAW AMM 30-41-00-710-801.
EMERGENCY LIGHTS BY R1 DOOR INOPERATIVE. ACFT GROUNDED. REPLACED BATTERY PACK POWER SUPPLY BY R1 DOOR, OPS NORMAL REF MM 33-51-06-960-805.
AIR CONDITIONER SUPPLY DUCT TEMP GAUGE BACKLIGHTING SEEMS DIM, POSSIBLY 1 OF 2 BULBS BURNED OUT. ACFT GROUNDED. REPLACED CABIN TEMPERATURE INDICATOR, REF MM 21-61-32-2 C/B OPEN & CLOSED, OPS NORMAL.
WHILE ACCOMPLISHING T/C 78249000, FOUND CDU'S APU MSG 49-72103, DMM SHOWS CIRCUIT FAILURE, ON CURRENT STATUS PAGE. ACFT GROUNDED. REPLACED APU DATA MEMORY MODULE IAW AMM 49-72-11.
FMC DISAGREE AFTER PUSH BACK GROUNDED. COMPLIED WITH QRH H2 OPS NORMAL.
T/R UNIT LIGHT ILLUMINATED ON OVERHEAD AFTER POWER FLUCTUATION. ACFT GROUNDED. FOUND TRU 1, 2, & 3 CIRCUIT BREAKERS OUT. RESET IAW MM 20-60-01. ACCOMPLISHED FIM 24-31 TASK 826. LIGHT EXTINGUISHED NO FAULTS NOTED. NO HISTORY 30 DAYS.
LEFT PACK LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED TEMP CONTROLLER BITE TEST, FOUND LT PACK TCV FAULT LIGHT. REF AMM 21-51-00. REPLACED LT TCV REF AMM 21-51-10. OPS & LEAK CK GOOD. BITE TEST PASS REF AMM 21-51-00.
WHILE IN THE FOLOWING MODE; LNAV, MCP SPEED, ALT HOLD, LEVEL AT FL390, F/E IAS/MACH WINDOW OPEN WITH .79 MACH COMMANDED ON A/T, THE COMMANDED SPEED CHANGED FROM .79 TO .80 ON MORE THAN 1 OCCASION AUTONOMOUSLY. NO KNOBS WERE TURNED OR TOUCHED, NOR BUTTONS PUSHED OR MODE CHANGED. ACFT GROUNDED. PERFORMED DFCF BITE PROCEDURE, FAULT HISTORY SORTED BY FAULT LEG, REF FIM 22-11, TASK 801, NO FAULTS FOUND, PERFORMED FIM 22-32 TASK 803, ALL SYSTEMS CHECKED NORMAL, NO FAULTS NOTED. ACFT OK FOR SERVICE.
NR 1 ENGINE SPINNER FRONT CONE MISSING MORE THAN 50 PERCENT OF ITS IODIZED BLACK PAINT. ACFT GROUNDED.
FMC DATA LINK FULL MESSAGE ON FMC, ACFT GROUNDED. FH PROCEDURE FOLLOWED, NORMAL OPS RESTORED.
FMC DISAGREE ON TAXI OUT. ACFT GROUNDED. RESOLVED IAW QRH.
FMC DISAGREE MESSAGE RECEIVED. ACFT GROUNDED. QRH PROCEDURE FOLLOWED WITH MESSAGE NO LONGER DISPLAYED.
LEFT ALPHA VANE LIGHT ILLUMINATED AND REMAINED ON DURING CRUISE. CIRCUIT BREAKER TRIPPED. ACFT GROUNDED. FOUND CB OPEN ON P18-3, C-3 HEATERS ALPHA VANE LT. RESET CB REF MM 20-60-01. TESTED LT ALPHA VANE HEATER REF FIM 30-31, TASK 804. TESTS OK. NO HISTORY 60 DAYS. GROUND VERIFICATION TEST SUCCESSFUL.
RT WHEEL WELL RT UPPER PRESSURE PANEL CRACKED. ACFT GROUNDED. REPAIRED RIGHT WHEEL WELL PRESSURE PANEL IAW B737-800 SRM 57-10-10-2R-3 ALTERNATIVE 2,INSTALLED AND REMOVED TEMPORARY EWIS PROTECTION COVES IAW B737-800 AMM 20-630-07,RESTORED FINILSH IA WB737-800 AMM 51-21-00 AND B737-800 AMM 28-11-00,THIS IS A CATEGRY B REPAIR,DO SUPPPLEMENTAL INSPECTIONS AS GIVEN IN B737-800 SRM 57-10-410-2R-3 TABLE 204,INSPECTION THRESHOLD OF 56,000 FLIGHT CYCLES INTERVAL 36,000 FLIGHT CYCLES .
AFT CARGO COMPARTMENT, LT SIDEPLATE CHANNEL HAS CORROSION STA 727G+10 TO STA 727I+10. ACFT GROUNDED. REMOVED CORROSION AND FOUND BEYOND ALLOWABLE LIMITS, 10 PERCENT THICKNESS MAX, IAW SRM 53-00-53-1A-2, ORIGINAL MATERIAL THICKNESS 0.040", REMAINING THICKNESS 0.034", THICKNESS REMOVED IS 0.006". REMOVED DAMAGED SECTION, FABRICATED AND INSTALLED SPLICE REPAIR IAW SRM 53-00-53-2R-5.
AFT CARGO COMPARTMENT, DOOR SURROUND SHIELD STA 767-794 HAS CORROSION. ACFT GROUNDED. REMOVED CORROSION AND FOUND BEYOND ALLOWABLE LIMITS IAW SRM 53-60-15-1A-1, FIG 103, DETAIL D, MAX ALLOWABLE THICKNESS REMOVED IS 10 PERCENT ORIGINAL MATERIAL THICKNESS IS 0.050" MATERIAL THICKNESS REMAINING IS 0.043" MATERIAL THICHNESS REMOVED IS 0.007". R & R SHIELD ASSY IAW SRM 51-10-02, PARA 9 AND 51-40-02, AND DWG 146A0081 .
AFT CARGO COMPARTMENT, R/H SIDEPLATE HAS CORROSION STA 727C - 767. GROUNDED - YES. REMOVED CORROSION AND FOUND BEYOND ALLOWABLE LIMITS OF 10% MAX THICKNES IAW ASA 737-800 SRM 53-00-53-A1-2,ORIGINAL MATERIAL THICKNESS IS .040 IN IAW ASA 737-800 SRM 53-60-53-0I-2, REMOVED .007 REMAINING THICKNESS IS .033 REMOVED DAMAGED SECTION AND ACCOMPLIHSED SPLICE REPAIR IAW ASA 737-800 SRM 53-00-53-2R-5,REMOVED AND REINSTALLED FLOOR PANELS 140AF,140BS AND 140EF FOR ACCESS IAW ASA 737-800 AMM 25-52-10 .
AFT ENTRY DOOR FORWARD UPPER STOP FITTING GOUGED. ACFT GROUNDED. AFT ENTRY DOOR FWD. UPPER STOP FITTING FOUND TO BE OUT OF LIMITS REF SRM 52-10-90-1A-1. REMOVED UPPER & FWD LINER SUPPORT, UPPER GATE AND DISPLACED PRESSURE SEAL TO FOM REF SRM 51-40-02, AND CMM 52-16-15. R & R UPPER FWD STOP FITTING IAW CMM 52-16-15, SRM 51-40-02 AND DWG 147A6116, REV F. REINSTALLED UPPER & FWD LINER SUPPORT, UPPER GATE AND PRESSURE SEAL REF SRM 51-40-02 AND CMM 52-16-15. ADJUSTED FWD UPPER STOP PIN. ADJUSTED UPPER GATE IAW AMM 52-13-00-820-801, STEP 2.P THRU Q. PERFORMED PRESSURE SEAL CHECK. NO DEFECTS NOTED IAW AMM 52-09-00-700-801, REMOVED DOT K086 .
REF T/C 78472000, NR 2 ENGINE FAN DUCT PANEL, WITH LPTACC SCOOP, AT 4-5 OCLOCK, ALF, LOWER MIDDLE FASTENER LOOSE, DAMAGED. FAN DUCT PANEL AT 5-6 OCLOCK, ALF, UPPER AND LOWER MIDDLE FASTENERS PULLED THROUGH PANEL. ACFT GROUNDED. R & R THE NR 2 ENGINE FAN DUCT PANEL, WITH LPTACC SCOOP, AT 4-5 OCLOCK, ALF PANEL REF AMM 72-23-07 & FAN DUCT PANEL AT 5-6 OCLOCK, ALF, PANEL REF AMM 72-23-07.
DURING NON-ROUTINE, APU SCAVENGE OIL FILTER R & R FOUND LUBE MOD FILTER DPI INDICATOR EXTENDED. ACFT GROUNDED. PERFORMED OIL FILTER INDICATOR SERVICING REF: MM 49-91-13 MAG PLUG CLEAN/FILTER CLEAN NO DEBRIS REPLACED FILTER, OPS/LEAK CHECK GOOD.
DURING TAKEOFF ROLL, NR 2 ENGINE OVERTEMPED TO INDICATED TEMP OF 999+ DEGREES C FOR 2 MINUTES, UNTIL POWER REDUCTION. ACFT GROUNDED. PERFORMED BOROSCOPE INSPECTION IAW MM 71-00-00-800-804-F00, STEP 4.F.17, C, 1 & 2. NO DEFECTS NOTED. MAINTENANCE MESSAGE 77-10852 &77-20862 LOGGED, BOTTOM RT EGT SIGNAL T49552, READS 207 DEGREES & BOTTOM LT EGT SIGNAL T49553 READS 785 DEGREES - REF FIM 77-21, TASK 802 & 803. R & R NR 2 EEC IAW AMM 73-21-60-000-801-F00. FAILED EEC TEST IAW 73-21-00-700-804-F00. ALL OTHER EEC POST INSTALL TESTS ACCOMP SATISFACTORILY. REMOVED NR 2 ENGINE BOTTOM LT EGT PROBE BUT 2 CASE STUDS BROKE OFF AT LOWER PROBE HOLE, IAW AMM 77-21-01-000-801-F00, EVEN THOUGH STUDS & NUTS WERE SOAKED REMOVAL FLUID TWO HRS PRIOR. R & R NR 2 ENGINE RT EGT PROBE IAW AMM 77-21-01. ALSO DISCOVERED LPT BORESCOPE PLUG S20 BOSS HAS LOOSE NUT & TACK WELD IS BROKEN. REMOVED NR 2 ENGINE IAW T/C 78471000 INSTALLED NR 2 ENGINE IAW T/C 78471001.
R2 DOOR EXTERIOR SLIDE EMERGENCY SPOTLIGHT INOPERATIVE. ACFT GROUNDED. REPLACED THE LAMP IAW AMM 33-51-04, OPS NORMAL.
ON ENGINE SHUTDOWN, RED BOX ON NR 2 ENGINE EGT. ACFT GROUNDED.
APU CT5ATP EGT DATA SHOWS EGT IS TRENDING TOWARDS ESTABLISHED THRESHOLD. ENGINEERING RECOMMENDS REPLACE APU WIRE HARNESS. ACFT GROUNDED. R & R APU WIRING HARNESS REF MM 49-11-01-400-802. ACCOMPLISHED APU OPS TEST REF MM 49-11-00-710-801. OPS CHECK NORMAL. ACCOMPLISHED APU BITE REF MM 49-61-00-700-801. NO FAULTS FOUND ON CURRENT STATUS.
WHILE ACCOMPLISHING TC 78273000, FOUND FAULT CODE 77-10852, "THE BOTTOM RT EGT SIGNAL, T49552 IS OUT OF RANGE ECONOMIC FAULT FAULTED ON NR 2 ENGINE. ACFT GROUNDED. REPLACED NR 2 ENGINE.
BATTERY PACK FUNCTIONAL TEST FAILED, IN FWD MID AND AFT SECTION. ACFT GROUNDED. R & R BATTERY PACKS IN FWD, MID, AND AFT SECTION IAW AMM 33-51-06. OPS CHECKED GOOD.
FMC DISAGREE MESSAGE ILLUMINATED. ACFT GROUNDED. COMPLIED WITH QRH PROCEDURE. FMC DISAGREE MESSAGE NO LONGER DISPLAYED.
RIGHT FMC FAILED, QRH PROCEDURE DID NOT RESET OR RESTORE OPERATION. ACFT GROUNDED. PERFORMED FIM 34-61, TASK 836 RT FMC RESTORED. NO OTHER DEFECTS NOTED.
WEATHER RADAR ON CAPTAIN`S SIDE AND F/O HAS A DIFFERENT PICTURE. F/O'S SIDE PAINTS GROUND CLUTTER THE ENTIRE TIME. HAD BOTH ON AUTO WITH THE SAME RANGE SELECTED. ACFT GROUNDED. RESET SYSTEM, GROUND FUNCTIONAL CHECK GOOD IAW AMM 34-43-00-710-802-001. NO HISTORY LAST 30 DAYS.
SATCOM INOPERATIVE MOST OF FLIGHT, T/O+1:35. ACFT GROUNDED. CYCLED SATCOM C/B IAW FIM 23-15-00-23-801. SATCOM RESET, OPS CK NORMAL.
FOUND ECONOMIC FAULT CODE 77-10852, EGT SIGNAL IS OUT OF RANGE ON NR 2 ENGINE. ACFT GROUNDED. NR 2 ENGINE EEC BITE IAW T/C 78273000 SHOWED NO FAULTS. ACCOMPLISHED T/S FOR FAULT 77-10852 IAW FIM 77-21, TASK 802. INPUT MONITORING SHOWED T495 PROBE TEMPS, S1/S4 & S2/S3, WITHIN LIMITS BUT T495 S2 TEMP WAS SLIGHTLY ELEVATED. PERFORMED NR 2 ENGINE EGT CONNECTOR CLEANING IAW MM 77-21-00-140-801- ALL TABLE 2 CONNECTORS CLEANED. PERFORMED EEC TEST IAW MM 73-21-00-700-804-F00 - ALL TESTS PASS. NR 2 ENGINE T495 PROBE READINGS WITHIN LIMITS IAW MM 77-21-00-140-801 AND FIM 77-21, TASK 802.
APU FLUCTUATING . ACFT GROUNDED. ACCOMPLISHED APU BITE IAW FIM 49-60, TASK 801. NO CURRENT FAULTS. FAULT HISTORY SHOWS MESSAGE NR 49-11019, POWER INTERRUPT. INPUT MONITORING PARAMETERS: DELTA PRESS: 6.1 PSID, TOTAL PRESS: 21.0 PSIA, INLET PRESS: 14.5 PSIA, INLET TEMP: 5.1C, FUEL TMC: 119 MA. ACCOMPLISHED ALTERNATE DEACTIVATION REF CH5, TABLE 3, ITEM 1. ACCOMPLISHED MEGGER OF APU HARNESS CONNECTORS: P18, P19, P20, P21. NO FAULTS DETECTED. REF WDM 49-62-12, 49-52-31,49-71-21. DURING INSPECTION FOUND CONTAMINATION ON GROUND STRAPS: M83413-8-G016BB, M83413-8-G007BB. REQUIRES REPLACEMENT. REPLACED INLET TEMP SENSOR REF AMM 49-61-31. P21 CONNECTOR HAS CONTAMINATION AND REQUIRES REPLACEMENT. REPLACED P-21 CONNECTOR IAW CHAP 20 & WDM 49-71-21. ACCOMPLISHED APU OPS TEST IAW AMM 49-11-00-710-801 AND APU BITE PROCEDURE AMM 49-61-00-700-801, NO DEFECTS NOTED. VERIFIED EXTENSIVE CORROSION AT BONDING CABLES M83413-8-G016BB, M83413-8-G007BB, AND CONNECTOR P21. GROUNDING STRAPS ARE ADHERED TO PHENOLIC COMPRESSOR COVER. ALSO EXTENSIVE CORROSION ON MOST GROUNDING CABLES THROUGH OUT APU WIRING HARNESS. RECOMMEND APU REPLACEMENT. ON DEFERRAL.
APU CTSATP TREND DATA SHOWS MES EGT IS AT OR NEAR THE ESTABLISHED THRESHOLD. ACFT GROUNDED. ACCOMPLISHED ALL STEPS OF TSR. REPLACED APU INLET TEMP SENSOR (T2) IAW AMM 49-61-31. INSPECTED INLET PRESSURE SENSOR (P2) IAW AMM 49-52-31. OPS NORMAL.
AFTER PUSH, ON THE GROUND, FMC DISAGREE ANNUNCIATED. ACFT GROUNDED. QRH FOLLOWED - FMC NORMAL.
WHILE ACCOMPLISHING T/C FOUND FAULT 77-20872 TOP LT EGT SIGNAL OUT OF RANGE T495S4, LAST 10 LEGS. ECONOMIC FAULT. NR 2 ENGINE . ACFT GROUNDED. ACCOMPLISHED, T/C 78273000, FAULT NO LONGER ACTIVE.
DRIVE LIGHT ON NR 1 GENERATOR ILLUMINATED INFLIGHT. DISCONNECTED IDG IAW QRH. ACFT GROUNDED. FOUND METAL CONTAMINATION IN THE NR 1 IDG OIL FILTER. REMOVED THE NR 1 IDG, IDG AIR-OIL COOLER AND IDG OIL COOLER IAW 24-11-11-000-801, 24-11-21-000-801 AND 73-11-06-000-801-F00. FLUSHED THE NR 1 ENGINE PLUMBING LINES IAW AMM 24-11-11-090-801C3. INSTALLED NR 1 IDG IAW AMM 24-11-11-400-801, STEPS 3A TO 3G, 10, AND STEP 3J, AIR-OIL COOLER IAW AMM 24-11-21-400-801 STEPS 3A TO 3G, 2 AND NR 1 IDG OIL COOLER IAW AMM 73-11-06-400-801-F00. PERFORMED NR 1 ENGINE IDLE LEAK CHECKS IAW AMM 71-00-00-700-801-F00 AND OPS TEST OF NR 1 IDG IAW AMM 24-11-00-700-802. OPS CHECKED OK, LEAK CHECKED OK FOR NR 1 IDG, IDG AIR-OIL COOLER, AND IDG OIL COOLER. GROUND VERIFICATION CHECKED GOOD.
R2 WINDOW OVERHEAT LIGHT ILLUMINATED DURING TAXI OUT. ACFT GROUNDED. CONTROL UNIT SHOWS SENSOR FAULT. VERIFIED SENSOR IS OPEN WITH METER. SWAPED SENSOR ON WINDOW IAW FIM 30-41, TASK 811. GROUND VERIFICATION CHECKED GOOD.
NR 2 HF WILL NOT TRANSMIT ON THE GROUND. SATCOM 2 WORKS FINE. ACFT GROUNDED. NO TRANSMIT/RECEIVE AND NR 1 KHZ TUNE-IN-PROGRESS TONE WHEN ANY FREQUENCY SELECTED AND KEYED. NR 2 HF LRU STATUS TEST SHOWS GREEN, IAW MM 23-11-21, R & R NR 2 HF TRANCEIVER, OPS NORMAL REF SAME AND GOOD COMMUNICATION, IAW 23-11-00.
FOUND NR 2 ENGINE FAULT CODE 77-10852, THE BOTTOM RT EGT SIGNAL, T495S2, IS OUT OF RANGE. ACFT GROUNDED. ACCOMPLISHED TC 78273000, FOUND NR 2 ENGINE FAULT 77-10852. PERFORMED T49.5, PROBES CONTACT CLEANING IAW FIM 77.21, TASK 802.
NR 1 IDG REQUIRED FREQUENT SERVICING. ACFT GROUNDED. FOUND NR 1 ENGINE IDG AIR/OIL COOLER LEAKING, R & R IAW AMM 24-11-21-401. LEAK CHECK GOOD.
NR 2 ENGINE IDG DELTA P INDICATOR POPPED. ACFT GROUNDED. PERFORMED FIM TASK 24-11, TASK 803. NO FMC CDU FAULTS. REPLACED FILTER. 1 DPI RESET LOGGED ON PLACARD ON NR 2 IDG. C/W TASK CARD 78424000 NO DEFECTS NOTED. LEAK CHECKED GOOD.
RIGHT PACK LIGHT ILLUMINATED, AND EXTINGUISHED AT MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED PACK/ZONE TEMP CONTOLLER BITE IAW MM 21-61-00. FAILED TCV FOR PREV FLIGHT BUT PASSED VERIFY TEST. PERFORMED PACK/ZONE TEMP CONTROLLER BITE 3 MORE TIMES WITH NO FAULTS. TESTS PASSED. NO HISTORY LAST 60 DAYS.
NR 2 COWL VALVE OPEN LIGHT ILLUMINATED BRIGHT WITH NR 2 ENGINE ANTI-ICE SWITCH OFF NR 2 TAI ILLUMINATED, WITH NR 2 ENG ANTI-ICE SELECTED ON, COWL VALVE OPEN LIGHT REMAINS BRIGHT, DISAGREEMENT. ACFT GROUNDED. INSPECTED NR 2 ENGINE NOSE COWL ANTI-ICE VALVE AND FOUND THE ELECTRICAL CONNECTOR DISCONNECTED. INSPECTED ELECTRICAL CONNECTOR, NO DAMAGE NOTED. INSTALLED ELECTRICAL CONNECTOR ON NR 2 ENGINE TAI VALVE AND PERFORMED OPS CK IAW AMM 30-21-11-400-801. NO FAULTS WERE FOUND. NR 2 ENGINE ANTI-ICE VALVE LIGHT OPERATES NORMALLY.
NR 2 ENG ANTI-ICE COWL VALVE OPEN LIGHT REMAINS ILLUMINATED BRIGHT WITH SWITCH IN ON POSITION. ACFT GROUNDED. R & R NR 2 ENG ANTI-ICE COWL VALVE. OPS CHECK GOOD REF MM 30-21-11-000-801 AND MM 30-21-11-400-801.
TSR ISSUED DUE TO HISTORY OF NR 1 IDG FREQUENT SERVICING, ACFT GROUNDED. ACCOMPLISHED NR 1 ENG IDG STATIC LEAK CHECK IAW MM 24-11-00, FOUND AIR/OIL COOLER LEAKING. R & R OIL COOLER IAW MM 24-11-21, RAN NR 1 ENG ACCOMPLISHED LEAK CHECK OF IDG, COOLER AND PLUMBING NO LEAKS NOTED.
NR 1 SOURCE OF LIGHT ILLUMINATED ON DESCENT THROUGH 13,000 FT. ZERO VOLTS AND AMPS ON GEN 1, BUS WOULD NOT RE-ENGAGE ON ENGINE GENERATOR. BUS DID RE-ENGAGE ON APU GENERATOR. ACFT GROUNDED. REPLACED NR 1 ENGINE IDG IAW MM 24-11-11-000-801, 24-11-11-400-801. OPS LEAK CHECK IAW MM 24-11-00-700-802.
AFTER ENGINE START, NR 1 ENGINE GENERATOR SHOWED NO VOLTS OR FREQUENCIES. WOULD NOT GO ON LINE. ACFT GROUNDED. NR 1 GCU LOGGED IDG FAULT. CLEARED FAULT & NR 1 GCU BITE, CHECKED NORMAL IAW FIM 24-21, TASK 801. SUBSEQUENT ENGINE RUN NR 1 IDG, OPS CHECKED NORMAL, IAW FIM 24-21, TASK 805. NO FAULTS LOGGED AFTER ENGINE SHUTDOWN.
MAINTENANCE LIGHT ON APU ILLUMINATED DURING START UP. ACFT GROUNDED. ACCOMPLISHED BITE TEST. FOUND OIL QTY LOW. SERVICED APU OIL QTY TO FULL REF AMM 12-13-31. APU START NORMAL. MAINT. LIGHT CLEARED. ETOPS OIL SERVICED, ADDED 2 QTS.
FOUND APU LUBRICATION FILTER DIFFERENTIAL PRESSURE INDICATOR EXTENDED. ACFT GROUNDED. REPLACED APU OIL FILTER INDICATOR AND OIL FILTER IAW AMM 49-91-13 AND 49-91-12. OPS AND LEAK CHECK GOOD.
FMC DISAGREE ON THE GROUND. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED, DISAGREE LIGHT WENT OUT.
APU BLUE MAINT LIGHT ILLUMINATED AFTER APU START. ACFT GROUNDED. SERVICED APU OIL TO FULL. ETOPS OIL SERVICED IAW MM 12-13-31, APU START NORMAL, BLUE MAINTENANCE LIGHT OUT.
LEFT PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL, LIGHT GOES OUT WITH RESET. ACFT GROUNDED. ACCOMPLISHED TEMP CONTROLLER BITE IAW TASK 801. NR 1, LT PACK, CONT HAD TCV FAULT. WOULD NOT RESET. REPLACED LT PACK TCV IAW MM 21-51-10/401. OPS GOOD.
NR 2 ENGINE, MAGENTA, "XB" CAME ON INTERMITTENT. NO OTHER ABNORMAL ENGINE INDICATIONS. ACFT GROUNDED. ACCOMPLISHED FIM 76-05, TASK 809 "X-BLD INDICATION DISPLAYED OVER N2 INDICATOR DURING NORMAL ACFT OPERATION FAULT ISOLATION" AND NR 2 ENGINE EEC BITE SHOWS FAULT MSG 76-31362 START LEVER SIGNAL DISAGREE, LONG TERM FAULT, LAST 3 LEGS OUT OF 11 FLT LEGS. CYCLED NR 2 START LEVER NUMEROUS TIMES TO CLEAR M1825 START LEVER SWITCH MODULE. RE-ACCOMPLISHED FIM 76-05 TASK 809 AND FIM 76-11 TASK 801 AFTER ENGINE RUN-UP. FAULTS CLEARED OPS CL NORMAL. ACCOMPLISHED DFCS LAND VERIFY (GP49) AND HGS SYSTEM TEST REF AMM 22-11-00 & SMM 34-36-00, OPS CK NORMAL.
AT TOP OF DESCENT, WHEN POWER CAME TO IDLE, MASTER CAUTION ILLUMINATED AND COWL ANTI-ICE LIGHT FLICKERED FOR AN EXTENDED PERIOD OF TIME. NR 2 COWL ANTI-ICE. ACFT GROUNDED. REPLACED THE TAI PRESSURE SWITCH ON THE NR 2 ENGINE IAW AMM 30-21-21. OPS CHECK GOOD IAW AMM 30-21-21-400-801, STEP "G".
R-6 PUSH BUTTON ON RT FMC INOPERATIVE. ACFT GROUNDED. R & R F/O MCDU IAW AMM 34-61-01. CDU OPS CHECK NORMAL. GROUND VERIFICATION GOOD.
AUTOPILOT "B" DISENGAGED TWICE OVER COURSE OF 90 MINS FOR UNKNOWN REASONS. ACFT GROUNDED. DFCS LOGGED, MCP DATA INV MESSAGE 22-11607. FOLLOWED FIM 22-11, TASK 817, INITIAL EVAL TEST PASSED. NO CURRENT STATUS FAULTS.
ELEC LIGHT ON PREFLIGHT. ACFT GROUNDED. REPLACED AUX BATTERY, INSTALLATION TEST NORMAL REF MM 24-31-11. R & R MAIN BATTERY REF AMM 24-31-11. OPS CHKED NORMAL.
AFTER ENGINE START AND TAXI, FMC DISAGREE ANNUNCIATED. ACFT GROUND POWER DUMPED TWICE AT GATE 16 SAN. ACFT GROUNDED. PERFORMED IAW QRH AND RESTORED.
SATCOM LOCKED UP ON GROUND. ACFT GROUNDED. RESET SUCCESSFUL IAW QRH.
DURING TAXI OUT, N1 SETTINGS ON TAKE OFF PAGE DID NOT MATCH. ACFT GROUNDED. VERFIED LT PACK INTERMITTENTALLY TURNED ON- SHOWS ON FMC DISCRETE PAGE. DURING TROUBLESHOOTING NOTED FMC DISCRETE SHOWED LT PACK FLOW CONTROL VALVE ON WITH THE VALVE CLOSED. JUMPERED CONNECTOR D486L PIN 3 TO 1 GROUND AND DISCRETE TURNED TO OFF. REPLACED THE LEFT FLOW CONTROL AND SHUTOFF VALVE IAW MM 21-51-01. LEAK AND OPS CKS GOOD. TAXI OF ACFT SHOWED NO FURTHER DEFECTS.
NR 1 ENGINE DRIVE LIGHT IS NOT ON WHILE AT GATE WITH ENGINE NOT RUNNING. ACFT GROUNDED. REMOVED NR 1 ENGINE IDG, INSTALLED SERVICEABLE IDG, LEAK AND OPS CHECKED GOOD IAW MM 24-11-11.
NR 1 ENGINE WILL NOT START. AFTER START LEVER IS BROUGHT UP, NO EGT RISE. TRIED LT & RT IGNITION WITH NO RESPONSE. ACFT GROUNDED. PERFORMED EEC BITE AND FOUND "NO FUEL FLOW". CHECKED SPAR VALVE AND VERIFIED SPAR VALVE OPS GOOD MECHANICALLY. AUDIBLE IGNITERS CHECKED GOOD. FOUND SPAR VALVE CIRCUIT BREAKER TRIPPED. RESET CIRCUIT BREAKER, AND OPS CHECKED NR 1 ENGINE. STARTS NORMAL. WRUNG OUT WIRES AT SPAR VALVE NR 1 ENG, CIRCUIT BREAKER STAYS CLOSED IAW FIM TASK 73-31-803. NO FURTHER DEFECTS, ACFT GOOD FOR SERVICE.
SATCOM LOCKED UP, ACFT GROUNDED. QRH CHECKLIST ACCOMPLISHED RESET OK.
SATCOM LOCKED UP, ACFT GROUNDED. RESET IAW QRH, OPS NORMAL.
R1 DOOR EMERGENCY EXIT LENS COVER BROKEN. ACFT GROUNDED. R & R EMERGENCY LIGHT ASSY IAW AMM 33-51-01-960-802.
LEFT ZONE TEMP AND BLEED LIGHTS ILLUMINATE WITH APU OFF. ACFT GROUNDED. R & R AIR CONDITIONING MODULE IAW MM 21-51-65-000-801 & MM 21-51-65-400-801. PACK/ZONE TEMP CONTROL BITE IAW MM 21-51-00-700-803 SHOWED NO FAULTS, BUT WITH NEW P5-10 MODULE INSTALLED THE CONTROL CABIN ZONE TEMP FAULT LIGHT WAS ON. REF SSM 21-61-11-101. FOUND V143 CONTROL CABIN TRIM MODULATING VALVE INTERMITTENTLY STICKING IN FULL OPEN POSITION. REMOVED, REPLACED, AND TESTED V143 ZONE TRIM VALVE IAW MM 21-61-21-000-801, MM 21-61-21-400-801. OPS NORMAL, NO LEAKS NOTED. PERFORMED AIR CONDITIONING MODULE INSTALLATION TEST IAW MM 21-51-65-400-801, RECIRCULATION SYS OPS TEST IAW MM 21-25-00-710-802-002, AND PACK/ZONE TEMP CONTROLLER BITE IAW MM 21-51-00-700-803. ALL TESTS PASS.
RT AFT OVERWING EXIT HANDLE FLOODLIGHT INOPERATIVE. ACFT GROUNDED. REPLACED LAMP AND TESTED IAW MM 33-51-01-960-801. OPS NORMAL.
"ZONE TEMP" LIGHT ILLUMINATED FIVE TIMES ON CLIMBOUT, TRIED RESET SWITCH HAD NO EFFECT. ACFT GROUNDED. CONTROL CAB ZONE TEMP LIGHT REMAINS ILLUMINATED WITH INTERMITTENT MASTER CAUTION AND AIR CONT ANNUNCIATIONS. DURING TROUBLESHOOTING, REMOVED & REINSTALLED BOTH ACAUS IAW AMM 21-51-02. REMOVED & REINSTALLED TEMP CONTROL PANEL (P6-17) IAW AMM 21-61-61. REPLACED AIR CONDITIONING MODULE. OPS CHECKED NORMAL IAW AMM 21-51-65. CONTROL CAB ZONE TEMP LIGHT REMAINS EXTINGUISHED.
CONT CABIN ZONE TEMP LIGHT ILLUMINATED DURING ENGINE START. ACFT GROUNDED. PERFORMED NR 2, ZTC BITE IAW 21-62, TASK 801. NO FAULTS LOGGED CLEANED FLT DECK FILTER PRECAUTIONARY. PERFORMED SYS OPS CHECKED IAW 21-61-00. SYS CHECKED NORMAL.
JUST AFTER BRAKES WERE RELEASED FOR PUSHBACK "FMC DISAGREE" ILLUMINATED IN BOTH FMC'S SCRATCHPAD. ACFT GROUNDED. QRH PROCEDURE FOR "FMC DISAGREE" FOLLOWED AND NORMAL FMC FUNCTION RESTORED.
FMC DISAGREE LIGHT ILLUMINATED ON TAXI OUT. ACFT GROUNDED. FMC DISAGREE QRH CHECKLIST PERFORMED. FMC DISAGREE LIGHT EXTINGUISHED. FMC OPS NORMAL.
IN AIR NOTICED NO SAT PROMP ON ACARS. ACFT GROUNDED. AFTER LANDING PERFORMED QRH PROCEDURE SYSTEM APPEARS TO BE WORKING NOW. SATCOM CHECKED GOOD IAW FIM 23-15, TASK 801.
SATELLITE PROMPT MISSING FROM MCDU MENU. ACFT GROUNDED. AFTER RESETING POWER SATELLITE PROMPT COME BACK ON MCDU, ACCOMPLISHED FIM 23-15-TASK 801.
NR 1 ENGINE HAS SHORT TERM ENGINE FAULT 77-1113, N2 SPEED SENSOR SIGNALS DISAGREE. ACFT GROUNDED. R & R NR 1 ENG NR 2 SPEED SENSOR IAW MM 77-11-02. PERFORMED EEC BITE TEST IAW MM 71-00-00 AND ENG RUN IAW MM 71-00-00-700-801. SYSTEM OP CHECKED GOOD.
AUTOLAND TOUCHED DOWN BEYOND LATERAL LIMITS TO THE LT OF CENTERLINE. NO OBSERVED TRAFFIC IN ILS CRITICAL AREA. DID NOTICE LOC WAVERING BACK AND FORTH AT APPROXIMATELY 500-600' WHICH MAY HAVE BEEN ATTRIBUTED TO DEPARTING ACFT BUT LOC SEEMED TO TRACK NORMALLY AFTER THAT UNTIL TOUCHING DOWN LT. GROUNDED - YES. COULD NOT DUPLICATE MALFUNCTION. NO FAULTS LOGGED IN FFR. LAND VERIFY OP CK NORMAL REF BITE GROUP NR 49. HGS RTS NORMAL REF MM 34-36-00.
FOUND APU OIL FILTER ELEMENT "RED BUTTON" INDICATOR POPPED. ACFT GROUNDED. R & R APU OIL FILTER IAW AMM 49-91-12. OPS CK GOOD, NO DEFECTS NOTED.
FMC DISAGREE, ACFT GROUNDED. PERFORMED "FMC DISAGREE" PROCEDURE IAW QRH. SYS RESTORED TO NORMAL.
TOTAL FUEL AND CENTER TANK FUEL QTY INDICATIONS DISAPPEARRED MULTIPLE TIMES ENROUTE DURING FLIGHT. ACFT GROUNDED. REPLACED FUEL QUANTITY PROCESSOR UNIT WITH SERVICEABLE ONE. ACCOMPLISHED FUEL QTY INDICATION SYSTEM OPS TEST, TEST PASSES NO FAULTS FOUND REF MM 28-41-81-400-801 & 28-41-00-710-801.
UNSUCCESSFUL AUTOLAND-TOUCHED DOWN BEYOND LATERAL LIMITS TO THE LT OF CENTERLINE. ACFT GROUNDED. RESET SYS, RAN LAND VERIFY TEST, COMPUTER FAULT HISTORY. NO RELATED FAULTS, REF AMM 22-11-00, OPS CHECK GOOD.
ENGINEERING REQUESTS APU TROUBLESHOOTING FOR CT5ATP TEMPERATURE ABOVE THRESHOLD. ACFT GROUNDED. INITIAL APU BITE SHOWS NO ACTIVE FAULTS, NO RECORDED FAULT HISTORY, AND NO MAINTENANCE HISTORY. ON STEP D-4, FOUND LIGHT CORROSION ON CONNECTOR P21, AND ALSO FOUND THE INLET TEMP SENSOR BACKED OUT AND HOLDING ON BY ONLY A FEW THREADS. CLEANED CORROSION ON THE P21 CONNECTOR AND REINSTALLED ON SENSOR, AND IAW THE TSR, REPLACED THE INLET TEMP SENSOR, AS WELL AS THE INLET PRESSURE SENSOR, AND THE TOTAL PRESSURE SENSOR. RAN APU AND MONITORED WITH NO FAULT INDICATIONS, RE-RAN APU BITE WITH NO DISCREPANCIES NOTED. ALL OPS NORMAL.
FOUND LONG TERM FAULT 711181 N2 SIGNAL IS OUT OF RANGE ON NR 1 ENGINE. ACFT GROUNDED.
CREW REPORTS FMC DATALINK FULL MESSAGE. ACFT GROUNDED. KNOWN ANOMALY. CYCLED FMC COMPUTER 1 & 2 CIRCUIT BREAKERS.
DURING PUSH BACK, ON RECALL LT PACK LIGHT ILLUMINATED, EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. BITE CHECK FAULTED TCV ON LT PACK. R & R TCV IAW AMM 21-51-10. OPS CHECKED GOOD, NO LEAKS NOTED.
SATCOM IS NOT AVAILABLE ON MCDU MENU. SATCOM SHOWS LOGGED OFF. ACFT GROUNDED. PERFORMED FIM 23-15-801. SATCOM PROMPT IS AVAILABLE AND LOGGED ON.
FOUND NR 1 ENGINE LONG TERM FAULT 77-21181, N2 SIGNAL IS OUT OF RANGE. ACFT GROUNDED.
MAGENTA XB DISPLAYED INTERMITTENTLY IN CLB/DESCENT ADJACENT TO ENGINE NR 2 N2 INDICATION. ALL ENGINE PARAMETERS NORMAL. ACFT GROUNDED. COULD NOT DUPLICATE MALFUNCTION. EEC LOGGED 76-31362 & 73-21352. START LEVER SIG DISAGREE & APL VOLTAGE TO EEC. ACCOMPLISHED FIMS 76-05, TASK 809, 76-11 TASK 801 & 73-22 TASK 808. NO DEFECTS NOTED. AS PRECAUTION R & R NR 2 ENGINE EEC. OPS CK NORMAL REF MM 73-21-60. VERIFICATION FLIGHT SATISFACTORY.
SATCOM INOPERATIVE. ACFT GROUNDED. NO PROMPT ON FMC CDU MENU PAGE. CYCLED SATCOM CIRCUIT BREAKER P18-2 D14. VERIFIED LRU HAD ALL GREEN LEDS. OPS CHECKED NORMAL.
WHILE PERFORMING TC 78233008, FOUND EXTERIOR EMERGENCY LIGHT BY AFT LT SERVICE DOOR INOPERATIVE. ACFT GROUNDED. RELAMPED SLIDE, OVERWING LIGHT BY AFT LEFT SERVICE DOOR IAW MM 33-51-01. OPS CK GOOD.
DURING NR 2 ENGINE INLET AND FAN BLADE DETAILED INSPECTION, FOUND NR 1, AT 12 O`CLOCK POSITION AFT, FAN DUCT PANEL HAS DAMAGED FASTENER HOLE, AFT INBD FASTENER (M). ACFT GROUNDED. FAN DUCT PANEL NR 1 AT NR 12 POS AFT. R & R IAW AMM 72-30-07-400-801-00.
THE SATCOM PROMPT ON THE MCDU MENU PAGE IS MISSING, UNABLE TO ACCESS SATCOM. ACFT GROUNDED. RESET SATCOM SYS & PROMPT RETURNED. SATCOM OPS, CHECKED GOOD, IAW MM 23-15-00.
APU CT5ATP TREND DATA SHOWS EGT TO BE NOT STABLE INPUT ERRORS ARE SUSPECT. ACFT GROUNDED. REPLACED APU INLET TEMPERATURE SENSOR. OP CHECK GOOD IAW AMM 49-61-31-400-801.
NO SAT PROMPT ON FMC MENU PAGE, ACFT GROUNDED. CYCLED ACFT POWER SAT COM OPS NORMAL REF MM 23-15-00.
EMERGENCY LIGHTS INOPERATIVE, OPS CHECK AISLE LIGHT AT ROW 10 ABC. ACFT GROUNDED. REPLACED LAMP AT ROW 10 ABC. OPS CHECKED OK.
EMERGENCY LIGHTING BATTERY PACK RESTORATION BATTERY PACKS M1676 AND M1695, FAILED CAPACITY CHECK. ACFT GROUNDED. REPLACED BATTERY PACKS M1676 AND M1695. OPS TEST OK, IAW AMM 33-51-06/201.
RT A/C PACK LIGHT ILLUMINATES ON RECALL. TURNS OFF AFTER MC LIGHT PRESSED. ACFT GROUNDED. BITE OF CONTROLLERS SHOWS TCV FAULT ON RT CONTROLLER. FAULT CLEARED & BITE CHECKS GOOD REF 21-62-21.
SATCOM PROMPT MISSING FROM MCDU MENU. ACFT GROUNDED. PERFORMED FIM TASK 23-15-00-23, OPS NOW NORMAL.
FMC DISAGREE, ACFT GROUNDED. QRH PERFORMED, OPS NORMAL.
FMC DISAGREE ON TAXI OUT. ACFT GROUNDED. PERFORMED CHECKLIST & CLEARED PROBLEM.
NO SATCOM SELECTION AVAILABLE ON FMC MENU DISPLAY. SATCOM INSTALLED AND CIRCUIT BREAKER CHECKED IN. ACFT GROUNDED. FOUND SATCOM IN A LOCKED UP STATE. IAW FIM TASK 23-15-00-23-801. CYCLED SATCOM CIRCUIT BREAKER, SATCOM RESTORED TO READY STATE.
FMC DISAGREE ON TAXI-OUT. ACFT GROUNDED. PERFORMED QRH 11.2, OPS NORMAL.
FOUND NR 2 ENGINE ECONOMIC FAULT 77-20872. THE TOP LEFT EGT SIGNAL IS OUT OF RANGE. ACFT GROUNDED. COMPLETED T/C 78273000. VERIFIED TWO FAULTS, IN RECENT FAULTS 77-20872 TOP LEFT EGT SIGNAL OUT OR RANGE AND 73-313172 UPPER EGT SECTORS READ HIGH. PERFORMED NR 2 ENGINE EGT INDICATION TROUBLESHOOTING IAW AMM 77-21-00, PB 201. S1-99.82 S2-46.50 S3 47.12 S4-339.87. COMPLETED EGT CONNECTOR CLEANING AND VALUES ARE S1-45.00 S2-25.20 S3-24.87 S4-45.50. CHECKS WITHIN LIMITS. PERFORMED ENGINE RUN AND EEC BITE VERIFIED ALL EGT VALUES NR 2 ENGINE WITHIN LIMITS DURING RUN, NO FAULTS AFTER RUN. REF AMM 77-21-00-20.
LEFT FWD WINDOW OVERHEAT AMBER LIGHT ON OVERHEAD (AND MASTER CAUTION LIGHT CAME ON AFTER 2 HOURS AT CRUISE. COOLED FOR 5 MINUTES, TURNED SWITCH BACK ON, OVERHEAT CAME ON IMMEDIATELY AND STAYED ON. TURNED SWITCH OFF AND KEPT OFF FOR REMAINDER OF FLIGHT. ACFT GROUNDED. FOUND CIRCUIT BREAKER OPEN ON P6-11 PANEL, INSPECTED CIRCUIT BREAKER & PANEL AREA, NO DEFECTS NOTED. CHECKED RES OF SENSOR AND WINDOW, BOTH CHECKED NORMAL. REPLACED WINDSHIELD HEAT CONTROL UNIT AS A PRECAUTION IAW 30-41-11. GROUND VERIFICATION SUCCESSFUL IAW 30-41-00.
A/P ENGAGED IN COMMAND B LEVEL FLIGHT FL330 DISENGAGED WITHOUT ANY REASON IN SMOOTH AIR, ACFT WAS TRIMMED. ENGAGED COMMAND A AND CONTINUED WITHOUT FURTHER PROBLEMS. ENGAGED COMMAND B ON DESCENT, WORKED NORMALLY. ACFT GROUNDED. PERFORMED FIM TASK 22-11-00-810-801. DFCS BITE CHECK AUTO PILOT CHANNEL A & B. ALL AUTO TEST PASSED.
RT PACK LIGHT ON DURING RECALL OUT ON RESET. ACFT GROUNDED. PERFORMED BITE CHECK RT PACK/ZONE TEMP CONTROLLER. DETERMINED TO BE INTERMITTENT FAULT. OPS CHECKED NORMAL, NO HISTORY 60 DAYS REF AMM 21-61-00-700-806-002.
SAT COM PROMPT ON ACARS MISSING. ACFT GROUNDED. SATCOM PROMPT WAS PRESENT ON MCDU. PERFORMED SATCOM SYS TEST REF MM 23-15-00-730-801.
ON APU START, BLUE MAINT LIGHT ILLUMINATED. ACFT GROUNDED. INTERROGATED APU FAULT PAGE ON CDU, FOUND APU OIL LOW FAULT. SERVICED APU GEARBOX OIL QTY TO FULL IAW AMM 12-13-31. PERFORMED APU OPS CHECK IAW AMM 49-11-00, OPS CHECK GOOD.
NO SAT PROMPT ON ACARS MENU. SATCOM EQUIPPED ON DISPATCH RELEASE. ACFT GROUNDED. SEAM C PROVIDED DATA FOR ANOMALY. PULLED AND RESET (SATCOM) CIRCUIT BREAKER. RESET SYS AND RESTORED GROUND VERIFICATION SUCCESSFUL.
POWER SUPPLY, FAILED OPS CHECK. ACFT GROUNDED. R & R POWER SUPPLY AND OPS TEST GOOD IAW AMM 33-51-06-960-806.
POWER SUPPLY, M1676 FAILS OPS CHECK. ACFT GROUNDED. R & R M1676 EMERGENCY LIGHT POWER SUPPLY AND OPS TEST GOOD IAW AMM 33-51-06-960-806.
ENGINE NR 2 BLEED DUCT PRESSURE WILL NOT DROP BELOW 20 PSI WITH ENGINE BLEED SWITCH IN OFF POSITION. ACFT GROUNDED. R & R BLEED AIR REGULATOR, REF AMM 36-11-03 LEAK OPS CHECK GOOD REF AMM 36-11-03 AND 71-00-00.
MAIN CABIN SEAT TRACK AT BS 520, RBL 24.75 FOUND TO BE GOUGED/WORN. ACFT GROUNDED. REPAIRED SEAT TRACK IAW SRM 53-00-52-2R-4, REPAIR 4.
MAIN CABIN SEAT TRACK AT BS 520, LBL 24.75, FOUND TO BE GOUGED/WORN. ACFT GROUNDED. REPAIRED SEAT TRACK REF SRM 53-00-52-2R-4, REPAIR 4.
FLOOR SUPPORT CRACKED BS 344 - 360, LBL 11. R & R FLOOR SUPPORT IAW SRM 51-40-02.
MAIN CABIN FLOOR SUPPORT CRACKED ON UPPER SURFACE BS 312 - 328, RBL 31. REPLACED FLOOR SUPPORT IAW SRM 51-40-02.
CRACK ON FLOOR SUPPORT UPPER SURFACE BS 312 - 328, LBL 46. REPLACED FLOOR SUPPORT IAW SRM 51-40-02.
MAIN CABIN FLOOR SUPPORT CRACKED ON UPPER SURFACE BS 318 - 324, LBL 47. REPLACED FLOOR SUPPORT IAW SRM 51-40-02.
AMBER FMC DISAGREE LIGHT APPEARED ON BOTH NDS. ACFT GROUNDED. QRC WAS RAN WITH RESOLUTION ALL IS NORMAL.
CTR TANK REFUEL GAUGE SHOWS 8S WHERE CTR SHOULD BE ANNUNCIATED. QTY INDICATION IS GOOD. REPLACED CTR REFUEL QTY INDICATOR IAW AMM 28-41-61/401. REFUEL QTY INDICATORS, OPS TEST NORMAL. FQIS BITE TEST PASSED.
FMC DISAGREE MESSAGE ANNUNCIATED ON TAXI OUT. CHECKLIST PROCEDURE EXECUTED. FMC OPERATION RETURNED TO NORMAL. NO HISTORY 90 DAYS. PERFORMED FMC SYS OPS CK IAW MM 34-61-00-710-801. PASSED.
FUELED ACFT TO 23.1 LBS UPON GETTING NRS FUEL DROPPED TO 22.6. UNABLE TO EXPLAIN LOSS OF 500 LBS. APU RUNNING FOR APPROX 10 MIN. ACFT GROUNDED. LAST 25 LEGS LOGGED TANK 1 DEGRADED. COMPENSATOR DATA BAD. CODE 28-41108. REMOVED COMPENSATOR REF MM TASK 28-41-21-000-801. INSTALLED SERVICEABLE COMPENSATOR REF MM TASK 28-41-21-400-801. BITE TEST OF FUEL QTY SYS REF MM 28-41-00-730-730-801. NO DEFECTS NOTED, CLEARED FLIGHT FAULT HISTORY.
ACCOMPLISHING NR 2 ENGINE EXTERNAL HARNESS INSPECTION, EGT PROBES 49.5 EXHIBIT BURNED PINS, CORROSION. REPLACED NR 2 ENGINE TEMP SENSORS S1, S2, S3, S4 IAW MM 77-21-01.
RT FWD WINDOW HEAT OVERHEATED. IT WOULD NOT RESET. FOUND P6-12, B8 WINDOW HEAT POWER RT FRONT CIRCUIT BREAKER OPEN. CIRCUIT BREAKER AT A POSITION FOR PRO-GEAR TO POSSIBLY GRAB. RESET CIRCUIT BREAKER IAW GPM 05-00-91. BITE TEST OF WHCU OPS NORMAL IAW AMM 30-41-11-710-801. WINDOW HEAT SYS OPS NORMAL IAW AMM 30-41-00-710-801. GROUND VERIFICATION SUCCESSFUL.
DURING RECALL ON LANDING CHECKLIST RT PACK LIGHT CAME ON. ACCOMPLISHED FIM 21-62 TASK 801 PACK/ZONE TEMP CONTROLLER BITE PROCEDURE ON NR 1 AND NR 2 TEMP CONTROLLER. NR 2 TEMP CONTROLLER LOGGED THIS PACK-TCV. ACCOMPLISHED FIM 21-62, TASK 831 STEPS A THROUGH F AND R & R RT PACK TEMP CONTROL VALVE REF MM 21-51-10. TCV LEAK CKS GOOD, PACK/ZONE TEMP CONTROLLER BITE CKS GOOD. PACK LIGHT NO LONGER ILLUMINATES ON RECALL.
LEFT CENTER BOOST PUMP AUTO SHUTOFF INOPERATIVE. DUPLICATED DEFECT. FOUND R936 LT AUTO SHUTOFF 115V AC RELAY FAILED. REPLACED R936 RELAY REF WDM28-23-11. ACCOMP CENTER TANK BOOST PUMP AUTO SHUTOFF FUNCTIONAL TEST REF MM28-22-00, OPS TEST NORMAL.
RIGHT PACK LIGHT CAME ON, EXTINGUISHES AFTER RESET. BITE TEST OF PACK/ZONE TEMP CONTROLLERS LOGGED NR 2 TCV FAULT, REF T/C 21-51-00-700-803. REPLACED TEMP CONTROL VALVE IAW MM 21-51-10 TO STEP 3A TO 3D7. ACCOMPLISHED STEPS 3E TO F4. OPS CHECKED GOOD.
RT PACK TRIP ON DEPARTURE FROM SJC DURING INITIAL CLIMB PACK TRIP WOULD NOT RESET. PACK DID NOT TRIP BUT CREW SAID RT PACK LT CAME ON WITH MASTER CAUTION RECALL. PERFORMED PACK BITE CK REF FIM 21-62, TASK 801 LOGGED TCV FAULT LAST FLT. PERFORMED FIM 21-62, TASK 831, TCV FAULT ISOLATION FAULT CLEARED. RAM PACK & GROUND FUNCTIONAL TEST PASSED PACK LIGHT STAYED EXTINGUISHED.
AFTER TAKE OFF, FUEL QTY RAN TO 23.6 AND BACK TO 22.3 IN LESS THAN 2 MIN. OPEN
RIGHT PACK LIGHT ILLUMINATES ON RECALL. NR 2 TEMP CONTROL SHOWS THIS PACK TCV FAULT. R & R RT TEMP CONT VALVE. OPS CHECKED NORMAL IAW AMM 21-51-400-801.
DURING S/W UPDATE OF FCC B REF T/CSB737-22A1224-NG-1-1. FCC B FAILED. REPLACED FCC B REF MM22-11-33, ETOPS GROUND VERIFICATON, OPS CK NORMAL, S/W CK OK. ACCOMP DFCS LAND VERIFIY NR 49, LRU FCC NR 35 TEST, & HGS SENSOR FCC/AT TEST. ALL TEST NML REF MM22-11-00, 22-11-31, & SMM34-36-00. ACFT REMAINS CAT III A AUTOLAND & HGS QUAL, & SCREW SHOW SAME.
DURING LANDING CHECK, RECALL RESULTED IN AN AIR COND ON F/O`S 6 PACK AND RT PACK LIGHT. ACFT GROUNDED. REPLACED RT TEMPERATURE CONTROL VALVE. INSTALLATION TEST PASSES, NO LEAKS NOTED. REF AMM 21-51-10/401.
RIGHT PACK LIGHT ILLUMINATED ON RECALL DURING APPROACH CHECKLISTS. COMPLETED QRH CHECKLISTS. ACFT GROUNDED. INITIALLY RT PACK CONTROLLER CALLED OUT RT TEMP CONTROL VALVE. RESET CONTROLLER AND RAN TEST, TEST PASSED. RAN PACKS FOR 5 MINUTES THEN TESTED CONTROLLER AGAIN AND ONCE AGAIN PACK CONTROLLER TEST PASSED. GROUND FUNCTIONAL TEST GOOD IAW AMM 21-51-00-700-803.
FMC DISAGREE MESSAGE ON TAXI. CLEARED IAW QRH.
ON NORMAL ENGINE SHUTDOWN AT GATE AFTER GROUND. POWER SWITCHED, ENG FAILED WARNING CAME ON OVER EGT GAUGE. ACFT GROUNDED. CREW STATED LIGHT CAME ON WHEN NR 1 ENGINE WAS SHUTDOWN. ACCOMPLISHED FIM 73-05-00-810-805, NO FAULTS FOUND. REPLACED NR 1 ENGINE START LEVER RELAY IAW STEP E(21)(G) OF SAME.
CAPT PITOT LIGHT ILLUMINATED ON OVERHEAD WITH SWITCH ON - CB DID POP BUT DELAYED. ACFT GROUNDED. R & R CAPT PITOT PROBE IAW AMM 34-11-01-000-801 & 34-11-01-400-801. PERFORMED LT PITOT PROBE SYS LEAK CHECK, CHECK GOOD IAW MM34-11-00-790-810. CONFIRMED C/B POPPED CAPTAIN PITOT HEATER P18-18-3 C1. PERFORMED PITOT PROBE HEATER SYS TEST, CHECK GOOD IAW AMM 30-31-00-730-801.
ON RECALL AFTER ENGINE START RT PACK LIGHT ILLUMINATED. LIGHT EXTINGUISHED WITH MASTER CAUTION RESET, ACFT GROUNDED. PERFORMED RT TEMP CONTROLLER BITE TEST. BITE TESTED NO FAULTS REF MM 21-51-00. OPERATED PACKS FULL COLD THIN FULL HOT SEVERAL TIMES COULD NOT DUPLICATE DISCREPANCY.
ZONE TEMP CONTROL FAULTED THE FLT DECK TRIM VALVE. ACFT GROUNDED. ACCOMPLISHED FIM 21-62-00-810-832. R & R CONTROL CABIN ZONE TRIM AIR MODULATING VALVE REF MM 21-61-21-400-801 THRU STEP F. (4) . LEAK & OPS CHECKED GOOD MM 21-61-21-400-801 COMPLETED.
ECS LOWER CHORD WORN BY DOOR LATCH. ACFT GROUNDED. REPLACED ECS LOWER CHORD.
OVERHEAT LIGHT ILLUMINATED (WINDOW HEAT LT SIDE) ON OVERHEAD PANEL WINDOW HEAT POWER LT SIDE CB P6-12-B9 IS TRIPPED. ACFT GROUNDED. RESET CIRCUIT BREAKER IAW MM 20-60-01-860-801. COMPLIED WITH WINDOW HEAT OPS TEST IAW MM 30-41-00-710-801, OPS CHECKED GOOD. CIRCUIT BREAKER REMAINS CLOSED.
CONTROL CABIN ZONE TEMPERATURE LIGHT ILLUMINATED ON RECALL. GOES OUT WHEN MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED PACK ZONE TEMPERATURE CONTROL BITE 21-62-00-810-801. CLEARED FAULT, DOES NOT COME BACK ON RECALL. OPS CHECKED GOOD.
AIRCRAFT HAS A HISTORY OF DIRTY SOCK ODOR. FOUND OIL ON DRAIN LINE FITTING & DRAIN CAVITY ON APU LOAD COMPRESSOR. REPLACED APU PER T/C 78349010. ACCOMPLISHED APU PNEUMATIC DUCT SYSTEM BURN OUT IN REF TO AMM 21-00- 01-100-801, NO ODOR NOTED AT THIS TIME.
FUELER REPORTED CENTER TANK REFUEL INDICATOR INOPERATIVE. VERIFIED FAULT. REPLACED CENTER REFUEL INDICATOR. ACCOMPLISHED GVI OF REFUEL PANEL, NO DEFECTS NOTED. ACCOMPLISHED OPS TEST, TEST PASSEDE IAW MM 28-41-61-400-801.
CREW REPORTED CLICKING SOUND COMING FROM AROUND P6 3 PANEL. ISOLATED SOUND TO STANDBY POWER CONTROL UNIT. CYCLED STANDBY POWER SOUND STOPPED BUT RETURNED MINS LATER. REMOVED & REPLACED SPCU REF MM 24-34-11-400-801. GROUND VERIFICATION TEST PASSED.
CENTER TANK FUEL GAUGE ON THE FUELER PANEL IS ANNUNCIATING FAIL. RESET SYSTEM CENTER TANK FUEL GAUGE IN FUELER PANEL OPS CHECKED GOOD AMM REF 28-41-61-400-801 PARA G.
MAIN BATTERY SHOWS A 3 AMP CHARGE ENTIRE FLIGHT. REF AMM 24 31 11 400 802 002 BATTERY AMPS SHOULD BE BELOW 5 AMPS POST BATTERY CHANGE. PRECAUTIONARY REPLACED MAIN AND AUX BATTERY PER AMM REF 24 31 11 000 802 002/ 24 31 11 400 802 002.
DURING PREFLIGHT "FAULT LIGHT" ON APU WAS FOUND ILLUMINATED. CLEANED AND INSPECTED INLET SENSOR WIRING AND ELECTRICAL CONNECTOR P21. PERFORMED RESISTANCE CHECK OF SENSOR NO DEFECTS FOUND. PERFORMED BITE TEST REF FIM 49 60 00 810 812 NO FAULTS AND APU OPS CHECKS NORMAL. OK FOR SERVICE.
APU HAS HISTORY OF COLD SOAK START FAIL ON FIRST 2 START ATTEMPTS. TO ASSIST ENGINEERING REQUESTS BITE CHECK DATA. REPLACED INLET TEMP SENSOR PER MM 49 61 31 00 801 AND MM 49 61 31 400 801, PERFORMED APU BITE PROCEDURE 49 61 00 700 801 CURRENT STATUS PAGE NO FAILURES FOUND.
RT PACK LIGHT ILLUMINATED ON RECALL. EXTINGUISHES WHEN MASTER CAUTION LIGHT RESET. NR 2 P/Z TEMP CTRL LOGGED "TCV THIS PACK" FAULT. BITE OK VERIFY OK. RESET & RETEST OK. REF FIM 21 62 #801. GRD VERIFICATION CK OK.
AFTER ENGINE ON RECALL ANNUNCIATOR PANEL DISPLAYED "AIR COND" WITH RIGHT PACK LIGHT ON CONSULTED QRH ON MASTER CAUTION RESET THE PACK LIGHT EXTINGUISHED. NR 2 TEMP CONTROLLER SHOWS THIS PACK TCV FAULT. INSTALLED NEW TEMP CONTROL VALVE REF MM 21 51 10. PERFORMED LEAK CHECK AND TEMP CONTROLLER BITE CHECK. OPS CHECK AND LEAK CHECK NORMAL NO FAULTS OR LEAKS NOTED REF MM 21 51 10.
"PWS FAIL" LIGHT COMES ON INTERMITTANLTY. RE-SEATED WXR R.T & SECURED. ACCOMPLISHED FIM TASK 34 43 00 WXR BITE GRD VERIFICATION SUCCESSFUL.
CONT CABIN TEMP CONTROL SEEMED UNABLE TO PROVIDE SUFFICIENT HEAT TO THE FLIGHT DECK. NEARLY FULL ROTATION CLOCKWISE BARELY KEPT FLIGHT DECK COMFORTABLE. FWD AND AFT TEMP CONTROL WAS VERY ERRATIC. DIFFICULT TO MAINTAIN STEADY TEMPS. ROWS 6 - 12 AIR GASPERS PROVIDED LITTLE AIR COMPARED TO THE REST OF THE CABIN. FC CABIN GOT VERY AT TIMER. PERF BITE CHECK OF ZONE TEMP CONT (1 & 2) PER AMM 21 62 00 810 801 NO DEFECTS. FOUND CTL TEMP SENSOR & FILTER DIRTY. CLEANED PERFORMED TEMP CTL OPS TEST PER AMM 21 61 00 700 807 002. OPS CHECK GOOD. CHECKED GASPER FLOW ROWS 6 - 12 IN COMPARISON TO FC & FOUND TO BE THE SAME. ACFT OK FOR SERV.
CAPTAINS L2 WINDOW OVERHEAT LIGHT ILLUM. REPLACED CAPT'S SLIDING WINDOW REF AMM 56 12 11 400 801. CAPT'S SLIDING WINDOW HEAT SYSTEM OPS TEST NORMAL IAW AMM TASK 30 41 00 710 801.
LEFT SIDE WINDOW HEAT OVERHEAT LIGHT CAME ON IN FLIGHT WOULD NOT RESET. CONFIRMED. PERF WINDOW HEAT CTRL UNIT SYS TEST PER 30 41 00 810 801. FOUND LT SIDE WINDOW SENSOR FAULT. PERF WINDOW SENSOR FAULT LGHT FOR SIDE WINDOW REF 30 41 00 810 811. SWITCHED PRI SENSOR LEAD TO SPARE SENSOR. PERF WINDOW HEAT SYS OPS TEST PER 30 41 00 710 801. NO FAULT FOUND. GROUND CHECK SUCCESSFUL.
GE DIAGNOSTICS REPORTS NR 1 ENGINE OIL PRESSURE READING LOWER THAN EXPECTED. OIL CONSUMPTION WITHIN 5 DAY LIMT AT .26 QPH. ACCOMPLISHED NR 1 ENG EXTERNAL OIL SYS INSPECTION IAW B737NG AMM 79 00 00. NO DEFECTS NOTED. ACCOMPLISHED NR 1 ENG CHIP DETECTOR & SCAVENGE SCREENS INSPECTION IAW B737NG AMM 79 00 00 NO DEFECTS NOTED. REPLACED NR 1 ENG LUBRICATION UNIT IAW B737NG AMM 79 31 01.
FMC DISAGREE ON SCRATCH PAD AND MFD ON GROUND. PERFORMED QRH PROCEDURE. LIGHT EXTINGUISHED, OPS NORMAL.
LEFT PACK LIGHT ILLUMINATES ON RECALL. EXTINGUISHES ON RESET. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST REF AMM 21 62 00 810 801. BITE TEST GROUND VERIFIED GOOD. NO FAULTS NOTED.
IN NR 1 ENGINE FOUND CONNECTOR TO UPPER LEFT EGT PROBE WITH BAD CONNECTOR SOCKETS. NEEDS NEW CJ10 HARNESS. REPLACED CJ10 HARNESS PER AMM REF 73 21 06 000 803 F00/73 21 06 400 803 F00. OP'S CHECK'S GOOD.
EMERGENCY LIGHT STRIP ON FLOOR IS RIPPED BETWEEN LAVS PASSENGERS TRIPPING OVER IT. REPLACED FLOOR LIGHT STRIP BETWEEN LAVS REF MM 33 51 15 960 801.
AFTER PUSHBACK FMC DISAGREE LIGHT ILLUMINATED. QRH PROCEDURE COMPLETED, OPS NORMAL.
NR 2 ENG FAN BLADES SHIMS WORN. REPLACED 24 FAN BLADE SHIMS MFG P/N 340 252 307 0. REF TC 78472002.
LEFT PACK LIGHT ON RECALL, CLEARS WITH MASTER CAUTION RESET. PERFORMED PACK/ZONE TEMP CONTROLLER BITE PER FIM 21 62 00 810 801. INIT FAULT THIS PACK TCV. FAULT CLEARED. RE-RAN BITE. NR 1 & AT PACK TEMP CONTROLLERS BOTH "GO".
UPON MASTER RECALL SPEED TRIM FAIL AND MACH TRIM FAIL LIGHT ILLUMINATED LIGHTS EXTINGUISH WITH MASTER CAUTION RESET. FAILURE ON CHANNEL A SIDE RE-RACKED "A" FCC OPS CHECK GOOD MM REF 22 11 00 740 806 COMPUTER RE-RACK IAW REF 22 11 33. COMPLETED DFCS LRU INTERFACE TEST FOR FCC A AND LAND VERIFY TEST MM REF 22 11 33 AND 22 11 00 HGS TESTS GOOD IAW MM 34 36 00. AIRCRAFT REMAINS AUTOLAND AND HGS QUALIFIED.
FMC DISAGREE ON GROUND SAN. NORMAL OPS RESTORED PER QRH PROCEDURE.
APU LOST PNEUMATIC PRESSURE. EXAMINED APU FMC CDU FAULTS REF AMM 49 61 00 700 801. FOUND FAULT 49 52289 TOTAL PRESSURE SENSOR SHOWS OUT OF RANGE DRIFT. REPLACED TOTAL PRESSURE SENSOR. INSTALLATION TEST PASSES. NO CURRENT FAULTS REF AMM 49 52 32/401.
DURING MASTER CAUTION RECALL CONT CAB ZONE TEMP LIGHT ILLUMINATES. LIGHT GOES OUT WITH MASTER CAUTION RESET. CONT CAB TEMPERATURE IS CONTROLLABLE. NR 2 TEMP CTRLR SHOWS FLT DECK TRIM VALVE FAULT ON BIT & PREV FLT TESTS. VERIFIED FLT DECK TRIM VALVE FAULT ON NR 2 PACK/ZONE TEMP CONTROLLER. REPLACED V143 CONTROL CABIN TRIM AIR MOD VALVE REF MM 21 61 21. ZONE TRIM AIR MODULATING VALVE CHECK AND LEAK CHECK NML REF MM 21 61 21.
DURING ENGINE START ENGINE NR 2 AT STARTER (AUTO) CUTOUT AT APPROX 55 N2 THE START SWITCH MOVED NORMALLY FROM "GRD" TO "OFF" AND THE ILLUMINATED "START VALVE OPEN" LIGHT (AMBER) MOMENTARILY EXTINGUISHED AND THEN RE- ILLUMINATED AND STAYED ILLUMINATED. ACCOMPLISHED QRC CHECKLIST TO START LEVER CUTOFF. REPLACED NR 2 ENG START VALVE REF MM 80 11 03 400 801. LEAK AND OPS CHECK GOOD REF 71 00 00 800. INDICATION NORMAL.
WITH SELECTOR IN AUTO, AUTO FAIL AND ALTN ILLUMINATED ON PRESSURIZATION CONTROL PANEL. CYCLED PRESSURE CONTROL PANEL OUTFLOW VALVE IN MANUAL RE-SELECTED MODE TO AUTO WITH NO FURTHER DISCREPANCIES NOTED.
CONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL. RESET PACK TEMP CONTROLLER AND RAN SYSTEM TEST PER MM 21 61 00 SYSTEM OP CHECKS GOOD.
FLIGHT ATTENDANTS REPORTS A VERY STRONG ELECTRICAL SMELL LIKE SMOKE BUT NEVER SAW SMOKE IT OCCURRED RIGHT AT TOP OF DESCENT EMERGENCY DECLARED STRONG SMELL FOR ABOUT 10 MIN THEN IT GOT BETTER AND STARTED TO DISSIPATE. FOUND THE SLEEVE ON THE Y-DUCT ASSEMBLY LOOSE AND DISCONNECTED DURING INSPECTION FOR ELECTRICAL SMELL COMPLETED INSPECTION REF AMM 05 60 00 PB 101, NO FURTHER DEFECTS NOTED. REFER TO IPC 21 21 01 01 SHEET 4 VIEW 'E" ITEM 90 AND 50 FOR THE LOCATION OF THE LOOSE SLEEVE "BOOT".
AUTOLAND PERFORMED 10R AT PDX FLARE WAS INCOMPLETE. ALL HGS INDICATIONS WERE NORMAL. ACFT GROUNDED. FFR LOGGED NO FAULTS DFCS NOR HGS. LAND VERIFY OP CK NORMAL PER BITE GROUP NR 49. VERIFIED TWO SUCCESFUL AUTOLAND WAS ACCOMPLISHED. OPS NORMAL.
COCKPIT ZONE TEMP LIGHT ILLUMINATED ON RECALL. RESETS WITH MASTER CAUTION. NR 2 CTRLR SHOWS "FLT DECK TRIM VLV" FAULT PREV FLT. VERIFY TEST GO. RESET FAULT. FAULT DID NOT RETURN. INTERMITTENT FAULT. OPS & FUNCT CHECK SAME GOOD. REF FIM 21 62/T832. NO HISTORY 60 DAYS.
NR 2 ENGINE SERVO FUEL HEATER OIL OUT PORT IS GOUGED. NR 2 ENGINE OIL SCAVENGE TUBE GOUGED AT SERVO FUEL OIL PORT. REMOVED NR 2 ENG SERVO FUEL HEATER PER AMM 73 11 07 000 801 F00 PG 1 5. INSTALLED SERVICEABLE FUEL HEATER SERVO PER AMM 73 11 07 400 801 F00 E.(1) (2) (F) PG 2 5. ACCOMPLISHED SERVO HEATER INSTALLATION PER 73 11 07 400 801 F00. INSTALLED OIL HOSE TUBE PER 72 00 63 420 001 A.
APU IS EXHIBITING AN ADVERSE OIL CONSUMPTION TREND. REPLACED APU ACCOMPLISHED T/C 78349010 ACCOMPLISHED APU OPERATIONAL CHECK REF MM 49 11 00.
STARTED THE APU (NORMAL START) AND THE BLUE "MAINT" LIGHT ILLUMINATED. PERFORMED APU BITE TEST FOUND MSG 49 91227 LOW OIL QTY. OPENED APU ACCESS DOOR PERFORMED GVI OF APU FOR OIL LEAKS NONE FOUND. INSPECTED TAILPIPE FOR STREAKING NONE FOUND. APU OIL ADD 2.0 QUARTS.
ON PREFLIGHT "AUTOFAIL" AND "ALT" LIGHTS WERE FOUND ILLUMINATED ON PRESSURATION PANEL ADDITIONALLY TRIP AIR SWITCH FOUND IN OFF POSITION. VERIFIED "AUTOFAIL" AND "ALT" LIGHTS ON. PERFORMED DCPD BITE TEST. FOUND FAULT "CONTROL LRU FAIL" FAULT CLEARED AND NO HISTORY. OK FOR SERVICE. REF FIM 21 31 00 810 801.
RIGHT PACK LIGHT ILLUMINATES WITH SYSTEM RECALL. ACFT GROUNDED. ZONE TEMP CONTROLLER BITE SHOWS NO FAULTS. RIGHT PACK OPS CHECK NORMAL. REPLACED NR 2 ZONE TEMP CONTROLLER IAW AMM 21 61 20 PAGE BLOCK 401. NR 2 ZONE TEMP CONTROLLER BITE NORMAL AND PACK OPS CHECK NORMAL ON GROUND.
NR 2 ENG: AFTER ENGINE START SWITCH RELEASED FROM GRD TO OFF ON START SEQUENCE FLASHING START VALVE LIGHT ILLUMINATED. ENGINE WAS SHUTDOWN WITH START LEVER THEN MOTORED FOR 60 SEC. PERFORMED TWO NORMAL STARTS WITH NO RE-OCCURRENCES. NO HISTORY. ETOPS SEAMC CONSULTED. GOOD FOR FURTHER SERVICE.
AFTER ENGINE START ON MASTER CAUTION RECALL "PACK" RT SIDE/AMBER ANNUNCIATOR ON OVERHEAD ILLUMINATES. NOTES: "PACK" ANNUNCIATION WILL RESET. ACCOMPLISHED FIM TASK 21 62 00 810 831 NR 2 ZONE TEMP CONT BITE SHOWS "THIS PACK TCV' FAULT ON PREV FLT. REPLACED RIGHT PACK TEMP CONTROL VALVE (V141) IAW AMM 21 51 10 PB 401. ZONE TEMP CONTROLLERS BITE NORMAL. VALVE LEAKS CHECK GOOD. VERIFIED RIGHT PACK OPERATES NORMAL ON GROUND.
LEFT PACK LIGHT ON DURING RECALL. ACCOMPLISHED ZONE/TEMP CONTROLLER BITE CHECK NR 1 CONTROLLER FAULTS TEMP CONTROL VALVE. REPLACED TEMP CONTROL VALVE & DID BITE TEST GOOD REF MM 21-51-10-400. OPS & LEAK CHECK GOOD REF MM 21-51-10-400-801.
LEFT FORWARD WINDOW OVERTEMP LIGHT ON. FOUND LT FWD OVERHEAT SENSOR FAULT ON WHCU DURING OPS TEST. REF MM 30 41 00. IT WAS A "HARD FAULT" WITH HISTORY. MOVED SPARE SENSOR SWITCH TO "SPARE" POSITION REF FIM TASK 30 41 00 810 812 LIGHT EXTINGUISHED & WHCU BITE TEST PASSED. OPS CHECK OK.
NR 2 ENG EXCESSIVE OIL CONSUMPTION. FOUND LEAK FROM FUEL PUMP PAD DRAIN IAW DRAIN LINES INSPECTION MM 71 71 00 700 801 F00. REPLACED NR 2 ENG FUEL PUMP PACKAGE AGB ROTATION SEAL PER MM 72 60 00. IDLE LEAK CHECK GOOD. FUEL PUMP PACKAGE REMOVED AND RE-INSTALLED PER MM 73 11 01, LEAK AND OPS CHECKS GOOD. ACCOMPLISHED PART POWER LEAK CHECK. REF MM 71 00 00 700 823 F00 & DRAIN LINE INSPECTION REF MM 71 71 00 700 801 F00. FOUND NO LEAKS FROM DRAIN LINES. FOUND OIL LEAK FROM LUBE UNIT LEAKING BETWEEN LUBE UNIT & OIL LINE. FOUND LUBE UNIT INSERTS PULLED OUT. REPLACED NR 2 ENG LUBE UNIT REF MM 79 21 01 400 801 F00. LEAK CHECK GOOD. VERIFICATION FLIGHT SUCCESSFUL.
LEFT PACK LIGHT ILLUMINATES ON RECALL. EXTINGUISHES ON RESET. CONFIRMED FAULT. ACCOMPLISHED LEFT PACK ZONE TEMP CONTROLLER BITE FAULTS LEFT TCV. REMOVED, REPLACED AND TESTED LEFT TCV IAW MM 21 62 00 & FIM 21 62 830. SIGNIFICANT SYSTEM GROUND VERIFICATION ACCOMPLISHED PER FIM 21 62 830.
ON OVERHEAD PANEL LEFT PACK LIGHT ILLUMINATES WHEN MASTER RECALL IS PUSHED EXTINGUISHES WHEN MASTER CAUTION IS PUSHED TO RESET. DUPLICATED DEFECT NR 1 CONTROLLER FAULTED TCV BITE TESTED IAW MM 21 51 00. REMOVED AND REPLACED NR 1 TCV. OPS AND BITE CHECK GOOD REF AMM 21 51 10.
AFTER PUSHBACK AND ENGINE START THE LEFT PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. LIGHT EXTINGUISHED WHEN MASTER CAUTION RESET. DUPLICATED LEFT PACK LIGHT ON RECALL. BITE TEST NR 1 CONTROLLER SHOWED NR 1 TCV. RESET FAULT. LEFT PACK OPS NORMAL REF MM 21 00 00. GROUND VERIFICATION SUCCESSFUL.
CAPT O2 MASK HOSE CAME DISCONNECTED. DIVERSION TIME 30 MINUTES. SWAPPED CAPT O2 MASK WITH FIRST OBSERVERS MASK REF AMM 35 12 85. REPLACED 2ND OBSERVER'S O2 MASK PER MM 35 12 85 PARAGRAPH D. OPS CHECK GOOD.
POWER CORD FOR CAPT SLIDING WINDOW INSULATION IS SPLIT OPEN. REPLACED CAPT SLIDING WINDOW POWER CORD. PERFORMED WINDOW HEAT SYSTEM OPERATION TEST PER MM 30 41 00, SYSTEM OP CHECKS GOOD.
WHILE ACCOMPLISHING T/C 78273000 NR 2 ENG FMC CDU FAULTS FOUND FAULT CODE 77 10852 BOTTOM RT EGT SIGNAL OUT OF RANGE (T49552) ON 5 OUT OF 10 FLT LEGS. IN FLIGHT HISTORY LONG TERM FAULT. FOUND CJ9 HARNESS HAS WORN PINS AT DP0913 FOR T495S2. REMOVED AND REPLACED CJ9 HARNESS ON NR 2 ENGINE REF MM 73 21 06. OPS NORMAL REF MM 73 21 00. SEAMC NOTIFIED.
GE DIAGNOSTICS TREND DATA SHOWS NR 2 ENGINE FUEL FLOW DATA AGAIN IS TRENDING HIGHER THAN EXPECTED. ALL OTHER PARAMETERS ARE WITHIN EXPECTED NORMS. GROUNDED YES. REPLACED FUEL FLOW TRANSMITTER AS PER REF. AMM 73 31 01. PERFORMED ENGINE NR 2 IDLE POWER LEAK CHECK OPS CHECKED GOOD. NO LEAK NOTED AND ENGINE RUN EEC BITE CHECKED NO RECENT FAULTS NOTED AS PER REF AMM 71 00 00.
WHILE PERFORMING TASKCARD 78273000 ENGINE FMC CDU FAULTS FOUND FAULT CODE 77 10852 BOTTOM RT EGT SIGNAL OUT OF RANGE (T495S2 ) ON THE NR 2 ENGINE. ON DEFERRAL.
WHILE ACCOMPLISHING TC 78273000 ENG FMC CDU FAULTS. FOUND MAINT MESSAGE 77 10852 NR 2 ENG BOTTOM RT EGT SIGNAL IS OUT OF RANGE. FMC CDU BITE SHOWED FAULT 77 10852 BOTTOM RIGHT EGT PROBE T49.5 OUT OF LIMITS. ACCOMPLISHED FIM 77 21 00 810 802 F00. REPLACED BOTTOM RIGHT EGT PROBE, OPS NORMAL. REF MM 77 21 01 400 801 F00 71 21 00 700 804 F00.
WING REFUELING PANEL CENTER TANK IND DISPLAYS FAIL. REPLACED CENTER FUEL QTY INDICATOR AT REFUELING PANEL IAW AMM 28 41 61 PB 401. INDICATOR TEST NORMAL. FQIS BITE GOOD.
FOUND APU/ CDU "CURRENT STATUS" FAULT49 52240 "HI CURRENT FLOW TO BLEED VALVE" + 25 PAST FLIGHT " OTHER OCCURRENCES" HISTORY. FOUND PIN 1 & 2 TO READ 6 OHMS INSTEAD OF GREATER THAN 20 OHMS PER FIM 49 51 00 AT BLEED AIR VALVE. CHANGED APU BLEED AIR VALVE REF: AMM 49 52 11. APU/ CDU "CURRENT STATUS" CLEARED OUT FAULT:49 52240. ALL FAULT HISTORY CLEARED OUT FROM APU/CDU FAULT PAGES. OPERATED APU BLEED SYS & RAN NR 1 ENG OPS NORMAL.
DEAL BLEED LIGHT ILLUMINATED OFF & ON W/ APU BLEED ON & PACKS IN AUTO W/ ISO VALVE OPEN OR CLOSED. PERFORMED FIM TASK 49 55 00 810 806 CYC BLEED AND PACK SWITCHES SYS RETURNED TO NORMAL OPERATION. NO HISTORY PAST 30 DAYS, OK FOR SERVICE. SEAMC NOTIFIED.
DURING ENGINE NR 1 START OBSERVED NO N2 ROTATION AND DUCT PRESSURE 0. PERFORMED QRH PROCEDURE. ALSO OBSERVED THE APU DUAL BLEED LIGHT TO BE FLICKERING ON AND OFF. ONCE ENGINE STARTED SWITCH WAS DISENGAGED DUCT PRESSURE RETURNED TO NORMAL. HOWEVER DUAL BLEED LIGHT CONTINUED TO OCCASIONALLY FLICKER ON AND OFF. PERFORMED APU BITE TEST PER AMM 49 60 00 810 801, NO FAULTS OR MESSAGES NOTED. PERFORMED FIM TASK 80 07 00 810 801, NO DEFECTS NOTED. PERFORMED ENGINE START OPERATION NORMAL NO DEFECTS NOTED AT THIS TIME.
CDU NR 2 SEVERAL BUTTONS DIFFICULT TO OPERATE. VERIFIED DISCREP. REPLACED F/O'S MCDU REF MM 34 61 01. OPS CHECK F/O'S FMC MCDU REF 34 61 01. OPS NORMAL.
NR 2 ENGINE TREND DATA CONTINUES TO SHOW ERRORS INDICATIVE OF EGT INDICATION SYSTEM ANOMALIES. ALL OTHER PARAMETERS ARE NORMAL. COCKPIT INDICATION IS STILL WITHIN RANGE. REPLACED LOWER LEFT EGT PROBE T495S3 AND PROBE T495S1 PER MM 77 21 01 000 801 / MM 77 21 01 400 801, NO HELP. REPLACED CJ9 AND CJ10 HARNESSES PER MM 73 21 06 000 803 / MM 73 21 06 400 803, READINGS NOW WITHIN LIMITS.
GE DIAGNOSTICS REPORTS NR 2 ENGINE TREND DATA SHOWS A SUDDEN SHIFT IN EGT HOT DAY MARGIN ALL OTHER PARAMETERS NORMAL. EGT INDICATION ERRORS ARE SUSPECT ETOPS SIGNIFICANT SYSTEM REF ETOPS MANUAL SECTION E07 00 04PRIORITY 1. C/W FIM 77 21 00 810 803 F00. ENGINE 2 T495 SENSORS INITIAL READINGS: S1=134 S2=69 S3=99 S4=66. OPENED P6 2: D4 D6 D7 D8. CLEANED ENGINE 2 T495 SENSORS S1 S4. CLOSED P6 2: D4 D6 D7 D8. ENGINE 2 T495 SENSORS POST CLEANING READINGS: S1=36 S2=17 S3=22 S4=17. PERFORMED REPAIR CONFIRMATION.
NR 2 ENGINE (RT) GEN WILL NOT COME ON LINE AFTER START NO VOLTS OR FREQ'S NOTED. REPLACED NR 2 ENG IDG REF MM 24 11 11 000 801, MM 24 11 11 400 801 STEP G (1) THROUGH (10) AND MM 24 11 11 090 801C3. INSPECTED OLD IDG FILTER AND FOUND CLEAN. REPLACED AC SYSTEM GEN AND APU MODULE P5 4 PNL, OPS NORMAL REF MM 24 21 51 000 801 AND MM 24 21 00 700 803.
NR 2 ENGINE FAILS ACTUATORS TEST FAULT CODE 73 20342 FMV SIGNAL OUT OF RANGE. REMOVED AND REPLACED NR 2 ENG HMU IAW AMM 73 21 10 000 801 F00 AND 73 21 10 400 801 F00 IDLE LEAK CHECKS OK IAW TEST 3A. AMM 71 00 00 700 801 F00 AND BITE TEST 71 00 00 700 808 F00 AND TEST 12 ACTUATORS TEST IAW 71 00 00 700 807 700.
BATTERY PACK M2335 FAILS DEEP CYCLE TEST. REMOVED AND REPLACED BATTERY PACK.
GE DIAGNOSTICS TREND DATA SHOWS NR 2 ENGINE FUEL FLOW DATA IS TRENDING HIGHER THAN EXPECTED. ALL OTHER PARAMETERS ARE WITHIN EXPECTED NORMS. ON DEFERRAL.
NR 2 ENG ANTI ICE COWL LIGHT ON. PERFORMED FIM TASK 30-21-00-810-801 RAN ENGINE CYCLE VALVE 3 TIMES AND SYSTEM OPS NORMAL. NO HISTORY LAST 60 DAYS, ACFT OK FOR SERVICE. ACFT WILL REQUIRE TOP DEFERRAL DUE TO NON ETOPS QUALIFIED TECH. SEAMC NOTIFIED.
WHILE STARTING NR 2 ENG FOUND N1 SPEED ERRATIC. NR 2 EEC LOGGED MSG 73 20052. EEC INTERNAL FAULT ALONG WITH 22 OTHER FAULTS. EVERY FLIGHT LEG IN FAULT HISTORY. REMOVED AND REPLACED NR 2 EEC PER AMM 73 21 60 000 801 F00 AND 73 60 400 801 F00. OPS CHECK NORMAL PER AMM AMM 73 21 00 700 807 F00.
NR 2 ENG START S/W DID NOT CUTOUT. START VALVE CLOSED AFTER MANUALLY TURNING OFF START SWITCH. TWO STARTS ACCOMPLISHED. REMOVED AND REPLACED NR 2 ENG START SWITCH REF WDM 74 31 11, OPS CHECK NORMAL REF MM 80 11 00.
REPORTED BY CREW DURING FAULT/INOP TEST "APU DET INOP" LT REMAINS ILLUM. APU FIRE TEST FAILS. APU UPPER DETECTOR AND M1756 APU LWR DETECTOR ARE GOOD WITH COMBINED RESISTANCE OF 1.3K OHM. FOUND M1925 APU TAIL PIPE OVHT DETECTOR DEFECTIVE AND OPEN. REPLACED APU TAILCONE DETECTOR WITH SERVICABLE ONE. TEST PASSED IAW MM 26-15-01-400-802.
APU DELTA P INDICATOR MISSING FROM FILTER BOWL. REMOVED AND REPLACED OIL FILTER & BOWL ASSY ON APU. NO CONTAMINATION FOUND. OPS CHECK GOOD REF MM 49 91 12.
DURING CHECK FOUND APU FAULT MAINT MSG 49 94304 OIL LEVEL SENSOR SHOW CIRCUIT FAILURE. ACCOMPLISHED FIM TASK 49 90 00 810 811. WIRE HARNESS CHECK GOOD. REMOVED AND REPLACED OIL LEVEL SENSOR AS PRECAUTION REF MM 49 94 11. VERIFIED PART. SEAMC CONTACTED. OPS CHECK APU, NO LEAKS. OK FOR SERVICE AT THIS TIME.
WHILE STARTING NR 1 ENGINE IN OAK THE APU TRIPPED OFF. RECONNECTED POWER AND CONTINUED WITH NORMAL START FOR NR 2. NO OTHER PROBLEMS WITH APU NOTED. PRECAUTIONARY R & R AUX POWER BREAKER C 803 IAW WDM 24-21-31. ALSO R & R APU GCU IAW MM 24-21-81. BITE TESTED IAW TASK 24-21-00-810-801. FOUND RESISTANCE AT CONNECTOR D48080J PIN 15 TO 16 AT P28 APU FIRE CONTROL PANEL TO BE 248K OHMS. REM/REPL P28 APU FIRE CONTROL PANEL IPC REF 26 22 03 02 ITEM 15M VERIFIED BY SEAMC STEVE. REPLACED PANEL PER MM 26 22 03 OPS CK NML REF MM 26 22 00 730 801 AND 26 22 00 720 801. RAN BOTH ENGINES SEVERAL TIMES AND POWER TRANSFERED BETWEEN ALL BUSSES NORMALLY. AIRCRAFT GROUNDED.
LOST APU ELECT POWER DURING NR 1 ENG START. ABORTED START. RE-ESTABLISHED POWER. REPLACED NR 1 CONT BREAKER . ACCOMP INST TEST, AND TEST FAILED WITH SAME EFFECT. CLOSED C/B BEHIND P92. REPLACED (P5 4) AC SYS GEN AND APU MODULE WITH SERVICEABLE ONE. ACCOMP AC GEN AND APU CONT SYS TEST, TEST PASS REF M/M'S 20 60 01 860 801 24 21 41 400 801 24 21 51 400 801 AND 24 21 00 700 803.
ZONE TEMP CONTROLLER ON CONT CAB ON DURING RECALL. GROUNDED YES. REMOVED & REPLACED CONTROL CABIN TRIM AIR MODULATING VALVE PER AMM 21 61 21 400 801. OPS AND LEAK CHECK GOOD. PER TECH SERVICES VERIFIED ACAU MODULES M324 AND M1455 ARE SECURED PROPERLY. NOTIFIED PAT SEAMC
PRESSURIZATION AUTO FAIL. ACFT GROUNDED. RESET POWER ON ACFT AND AUTO FAIL LIGHT WENT OUT AND SYSTEMS ARE NORMAL.
AFTER ENG START FMC DISAGREE LIGHT ILLUMINATED. ACCOMPLISHED PROCEDURE 11.2 IN THE QRH, FMC DISAGREE DID NOT ILLUMINATE. OPS NORMAL.
DURING CLIMB (AT 280FL) NR 2 THROTTLE INCREASED "A/T LIM" LIGHT APPEARED ON ENG PRI DISPLAY UNIT N1 RPM INCREASED TO AT 100 PERCENT DISCONNECTED AUTO THROTTLE. MANUALLY REPOSITIONED THROTTLES. RECONNECTED AUTO THROTTLE AND PROBLEM REOCCURRED DISC A/T MOVED THROTTLES MANUALLY EVERYTHING ELSE NORMAL CONTINUED TO PDX. PERFORMED AUTO THROTTLE BITE IAW FIM 22 31 TASK 801. FAULTED EEC. PERFORMED EEC BITE 73 00 TASK 801 FAULTED EEC NOT ENERGIZING ALT VOLTAGE. FIM 73 27 TASK 805 EEC FAULTED. REPLACED NR 2 ENG EEC IAW MM 73 21 60 000 801 F00. ALL TESTS PASS OPS CHECK GOOD.
FMC DISAGREE WARNING ON GND IN SAN. FLIGHT CREW PERFORMED QRH PROCEDURE, OPS NORMAL.
NR 1 DRIVE LIGHT NOT ILLUMINATED. REPLACED NR 1 ENG IDG PER AMM TASK 24 11 11 000 801 AND 24 11 11 400 801. OPS CHECK GOOD PER AMM TASK 24 11 00 700 802.
OVERHEAD "AFT CABIN" TEMP CONTROL REQUIRES ABNORMAL POSITION (FAR HOTTER THAN NORM) TO MAINTAIN TEMP. ALSO AFT CABIN TEMP INDICATES 28 30 DEGREES C AND F/A'S STILL REPORTING COLD. FOUND AFT CABIN TEMP FILTER VERY DIRTY. CLEANED AFT CABIN TEMP SENSOR AFT CABIN TEMP BULB AND FILTER REF MM 21 61 10. PACK/ZONE TEMP CONTROLLERS REVEALED NO FAULTS. OPS CHECK OF CABIN TEMP CTRL AND INDICATION NML REF MM 21 61 00.
AC METERS INDICATES 15 AMPS FLOW ON APU GEN WITH APU SHUT DOWN. DC METERS SHOWS 2 VOLTS ON GND PWR WITH NO GND POWER CONNECTED. ACFT GROUNDED. MANUFACTURER RESPONSE IS AS FOLLOWS: "WHEN THERE IS NO EXTERNAL POWER CONNECTED TO ACFT & APU IS NOT OPERATING, SENSE LEADS TO THE P5 13 MODULE ARE OPEN CIRCUIT. ALSO THE P5 13 MODULE INPUTS ARE HIGH IMPEDANCE. WHEN P5 13 MODULE IS SET TO MEASURE AN INPUT THAT IS OPEN CIRCUIT IT IS INDETERMINATE WHAT THE MEASUREMENT DISPLAYED WILL BE, DUE TO COUPLING OF THESE SENSE WIRES TO SIGNALS FROM OTHER WIRES IN WIRE BUNDLES THAT THEY ARE GOING THROUGH. THEREFORE, VOLTAGES & CURRENTS MEASURED ARE SIGNALS THAT ARE BEING INDUCED FROM OTHER SIGNALS IN THE BUNDLE. IF AN OPEN CIRCUIT IS BEING MEASURED USING THE P 13 PANEL THESE MEASUREMENTS WILL BE INCONSISTENT CAN VARY DURING DIFFERENT PHASES OF FLT & CAN EVEN VARY BETWEEN ACFT. THESE MEASUREMENTS ARE NOT USEFUL & SHOULD BE IGNORED." THIS EA DIRECTS MX TO ACCOMPLISH AN INSTALLATION TEST OF P5 13 MODULE & TO RESTORE ACFT TO FULL ETOPS STATUS. MX SHOULD DISREGARD THE AC INDICATIONS DISPLAYED ON THE P5 13 PANEL.
NR 1 ENGINE START VALVE DID NOT OPEN WHEN START SWITCH PLACED IN GROUND POSITION. QRC/QRH PROCEDURE ACCOMPLISHED. APU DUCT PRESSURE DID RISE WHEN GROUND SELECTED. NO START VALVE OPEN LIGHT OR ENGINE ROTATION. REMOVED & REPLACED NR 1 ENG START VALVE PER AMM 80 11 03 000 801 F00 AND 80 11 03 400 801 F00. OPS AND LEAK CHECK GOOD.
ON TAXI THE L SIDE WINDOW OVERHEAT LITE ILLUMINATED. GROUNDED YES. O/H LITE COMES BACK ON AFTER WINDOW COOLED DOWN IN ABOUT 5 10MINS. WHCU SHOWS SENSOR FAULT. FOUND TEMP SENSOR TERM LOOSE. SECURED SAME. REF FIM 30 41 00 810 811.
NR 2 IDG DIFFERENTIAL PRESSURE INDICATOR IS EXTENDED. REPLACED SCAVANGE AND CHARGE FILTERS AND RESET INDICATOR PER MM 24 11 41. INSPECTED FILTERS AND FOUND NO CONTAMINATION OIL SHOWED NO EVIDENCE OF BURNING. DOCUMENTED FIRST OCCURRENCE ON PLACARD AND VERIFIED IN TRAX PER MM 24 11 41. REQUIRES LEAK CHECK. LEAK CHECK GOOD REF MM 24 11 41.
HEARD LOUD NOISE COMING FROM ENGINE BLEED AIR ISOLATION VALVE. REMOVED AND REPLACED ENGINE BLEED AIR ISO VALVE REF AMM 36 10 04. VERIFIED PART WITH SEAMC IPC 36 10 04.
NR 1 HF RADIO WAS UNABLE TO UNDERSTAND VOICE TRANSMISSIONS FROM SFO RADIO. NR 2 HF WAS NORMAL. REMOVED AND REPLACED HF TRANSCEIVER REF MM 23 11 21. PERFORMED GROUND FUNCTIONAL TEST (HF COMM SYS OPS AND SYSTEM TESTS). TESTED GOOD REF MM 23 11 00.
AFT CABIN TEMP SENSOR GRILL & FILTER MISSING. INSPECTED TEMP SENSOR COMPT & FAN. INSTALLED NEW GRILL & FILTER. P/N'S (GRILL) 412N1122 3A & (FILTER) 412A1600 41.
REF T/C 78349013 APU OIL FILTER DELTA P INDICATOR OPENED/POPPED. REMOVED & REPLACED APU LUBE FILTER ELEMENT & RESET OIL FILTER INDICATOR REF MM 49 91 12, NO LEAKS NOTED.
NR 1 ENG START VALVE WILL NOT CUT OUT UNTIL 59 PERCENT OF N2. ATTEMPTED START 3 TIMES WITH SIMILAR RESULTS. CONFIRMED DEFECT REPLACED NR 1 ENGINE START VALVE IAW MM 80 11 00 400 801, OPS CHECKED IAW MM 80 11 00 730 801, ALL GROUND VERIFICATION TESTS PASS.
WHILE PERFORMING T/C 78472040 AGB/TGB MAGNETIC CHIP DETECTOR CHECK FOR THE NUMBER 2 ENGINE FOUND DEBRIS IN THE AFT SUMP DETECTOR 22X.040 MAGNETIC NON IDENTIFIABLE. ROUTED DEBRIS TO POWER PLANT ENGINEERING PER MM 79 00 00 200 804 FOO STEP 8 [C]. PERFORMED ENG 70 PERCENT FOR 10 MINUTES. RECHECKED AFT SUMP MCD NO DEBRIS FOUND. C/W REINSPECT NO DEBRIS FOUND IT HAS BEEN MORE THAN 30 CONSECUTIVE DAYS WITH NO DEBRIS FOUND. INSPECTION INTERVAL TO BE RETURNED TO NORMAL.
BLEED SYS HEALTH CHECK INFO SENT VIA ACARS ON F872 24 MAY 2009 INDICATES RT DUCT PRESS AT 30 PSI THIS IS BELOW OPERATIONAL LIMITS IAW AMM 36 11 00 710 801 FIG 502 GROUNDED YES. PERFORMED PNEUMATIC SYS T/S OF RT ENG REF MM 36 00 00. FOUND PRECOOLER VALVE DEFECTIVE. REMOVED AND REPLACED PRECOOLER VALVE REF MM 36 12 02. ROTIBLE PART VERIFIED BY SEAM C-MIKE. GROUND VERIFIED PRECOOLER VALVE OPERATION IAW MM 36 12 00. SEAM-C NOTIFIED.
NR 1 ENGINE IDG DIFFERENTIAL PRESSURE INDICATOR HAS POPPED 3 TIMES. REMOVED & REPLACED NR 1 ENGINE IDG REF. T/C 24 11 11 000 801, 24 11 11 400 801 & 24 11 00 700 802.
APPROX 4.5 HOURS AIRBORNE GOT WINDOW HEAT "OVERHEAT" LIGHT ON "L" "SIDE" WINDOW. ACCOMP QRH PROCEDURE. WINDOW HEAT RE-ESTABLISHED ALL INDICATIONS NORMAL. BITE CHECKED WINDOW HEAT CONTROL UNIT, NO FAULT REF FIM 30 41 TASK 801. BITE HISTORY HAD TWO STORE FAULT FOR WINDOW SENSOR. AS A PRECAUTION RESISTANCE CHECKED ON SENSOR SHOWED NORMAL REF FIM 30 41 TASK 811. WINDOW HEAT OPS CHECKED NORMAL PER MM 30 41 00. NO HISTORY PAST 90 DAYS.
NR 1 ENG IDG DPI FOUND EXTENDED. ACCOMP FIM 24 11 TASK 803. ACCOMP NR 1 ENG IDG SCAVENGE & CHG FILTER INSP/CK NO DEFECTS NOTED REF M/M 24 11 11 PG 204. REMOVED & REPLACED NR 1 ENG IDG SCAVENGE & CHG FILTERS RESET DPI LK & OPS NORMAL REF M/M 24 11 41 PG 201. INSTALLED NEW DPI RESET COUNTER DECAL REF M/M 24 11 41. SEAMC NOTIFIED OK FOR SVC.
CONTROL CABIN ZONE TEMP LIGHT CAME ON, ON RECALL. THE LIGHT EXTINGUISHES WHEN MASTER CAUTION SYSTEM IS RESET. CONFIRMED FAULT ON RECALL ZONE TEMP LIGHT CAME ON AND EXTINGUISHED ON MASTER CAUTION RESET. PERFORMED PACK/ZONE TEMP CONTROLLER BITE ON BOTH CONTROLLERS PER FIM 21 62 TASK 801. FOUND FLT DECK/ TRIM VALVE FAULT ON NR 2 CONTROLLER. PERFORMED CONTROL CABIN TRIM AIR VALVE FIM 21 62 TASK 832 AND THEN REMOVED AND REPLACED V143 FLIGHT COMPARTMENT TRIM AIR MODULATING VALVE PER M/M 21 61 21. OPS CHECK GOOD. NOTE: POWER OFF REMOVAL, NO CB'S CYCLED. INSPECTED CONNECTOR ON V143, NO DEFECTS NOTED.
ZONE TEMP LIGHT ILLUMINATED ON CONT CABIN DURING M/C RECALL. LIGHT EXTINGUISHES WHEN M/C SYSTEM IS RESET. INTERROGATED BOTH NR 1 & NR 2 ZONE TEMP CONTROLLERS PER AMM 21 61 00. ZONE TEMP CONTROLLER NR 1 FAULTED: CONTROL CABIN ZONE TRIM AIR MOD VALVE. REMOVED AND REPLACED TRIM AIR MOD VALVE PER AMM 21 61 21. ETOPS SIG SYSTEM: PART VERIFIED BY SEAMC, 2DN VALVE IN 2 DAYS. BOTH ZONE TEMP CONTROLLERS INTERROGATED. NO FAULTS FOUND. C/B P6 4 ROW B NUMBER C01167 OPENED AND THEN CLOSED AFTER COMPLETION OF WORK (MIG51A 10202). NOTIFIED SEAMC.
ZONE TEMP LIGHT ILLUMINATED ON CONT CABIN DURING MASTER CAUTION RECALL LIGHT EXTINGUISHES WHEN MASTER CAUTION SYSTEM IS RESET. ACCOMP PACK/ZONE TEMP. CONTROLLER BITE PROCEDURE FOUND FAULT LIGHT FOR FLT DECK TRIM VALVE ON NR 2 TEMP CONTROL AND NR 1 HAD NO FAULTS REF FIM TASK 21 62 00 810 801. INTERROGATED NR 1 PACK/ ZONE TEMP CONTROLLER PER: AMM 21 61 00. TEMP CONTROLLER FAULTED: CONTROL CABIN ZONE TEMP CONTROL VALVE. CONTROL CABIN ZONE TEMP CONTROL VALVE REPLACED WITH NEW PER: AMM 21 61 21. TEMP CONTROLLER BITE TEST GOOD. NOTIFIED SEAMC.
RT CENTER FUEL PUMP AUTO SHUTOFF TEST INOP DURING TC 78128007 W/O 19798. FOUND RT AUTO SHUT OFF RELAY R937 BAD. REPLACED R937 REF WDM 28 23 11. GROUND VERIFICATION CHECKS GOOD REF MM 28 22 00.
CLIMBING THROUGH 30,000 FEET GOT APU "OVERSPEED" LIGHT. ETOPS FLIGHT AIR RETURN TO SEA. DIVERSION TIME 30 MINS. APU BITE CURRENT STATUS STILL SHOWS MAINT MESSAGE 49 31175 (FCU RESOLVER CIRCUIT SHOWS BAD). ACCOMPLISHED STEPS F(1) (5) FIM 49 32 TASK 805. COMPLETED STEP 6 FIM 49 32 00 810 805 REPLACED PRECAUTIONARY ECU REF MM 49 61 12 000 801 AND 400 801. COMPLETED STEP 7 FIM 49 32 00 810 805 PRECAUTIONARY REPLACED FCU REF MM 49 31 11 000 801 AND 400 801. ACCOMPLISHED FIM 49 30 00 810 802 REPLACED SPEED SENSOR PRECAUTIONARY REF MM 49 61 21 000 801AND 400 801. VERIFIED ALL PARTS. NO FURTHER CURRENT FAULTS. VERIFICATION FLIGHT SUCCESSFUL.
AFTER ENG START AND PACK/BLEED CONFIGURATION LT PACK LIGHT ILLUMINATED. UNABLE TO RESET. ACCOMPLISHED INITIAL EVALUATION OF ACM REF FIM 21 53 00 810 811 PG 4 STEP E, LT PACK LIGHT DID NOT COME ON. PERFORMED BITE OF LEFT PACK CONTROLLER SHOWS LT TCV FAULT REF 21 62 TASK 801. REMOVED & REPLACED LT TEMP CONTROL VALVE REF MM 21 51 10 000 801 & 21 51 10 400 801, OPS CHECK GOOD, NO LEAKS, BITE CHECK GOOD. PART VERIFIED, GROUND VERIFICATION SUCCESSFUL.
AFTER REPLACING F.C.U & LUBE MODULE DIFF. PRESS INDICATOR . FAULT CODE (MX MSG) 4931175 DISPLAYED "FCU RESOLVER CIRCUIT SHOWS BAD". GROUNDED YES. R&R APU IGNITION UNIT PER M/M 49 41 31 OPS CHECKS GOOD.
APU OIL FILTER INDICATOR RED BUTTON EXTENDED. GROUNDED YES. R&R APU OIL FILTER INDICATOR PER AMM 49 91 13. OPS NORMAL.
APU WILL NOT START. GROUNDED YES. DURING T/S FOUND APU LUBE MODULE DIFF PRESS PIN EXTENDED & END OF INDICATOR DAMAGED T/S TO INOP FUEL CONTROL WILL REQUIRE REPLACEMENT. INSTALLED FUEL CONTROL REMOVED. MIG 51 TAGS S/N 24974 27702 24146 AND 13623 INSTALLED ON ALL FUEL BOOST PUMP SWITCHES. R&R APU LUBE MODULE DIFF. PRESSURE INDICATOR PER AMM 49 91 13. INSTALLED FUEL CONTROL PER AMM 49 31 11.
SHORTLY AFTER T/O THE LT FUEL QTY WAS NOTED TO BE 8.18 AND REMAINED STEADY THRU SEVERAL CLIMBS AND LEVEL OFFS UNTIL APPROX 33,000. WHILE CLIMBING THE LT FUEL QTY BEGAN INCREASING AT A RATE OF ABOUT 10 POUNDS PER SECOND UP TO 8.65. WE REBALANCED LT AND RT TANKS AT 8.12 WHERE IT REMAINED FOR THE NEXT SEVERAL HOURS UNTIL EMPTY. GROUNDED YES. R&R NR 1 TANK COMPENSATOR PROBE. OPS AND SYSTEM TEST OK REF AMM 28 41 21/401.
ON RECALL "AIR CONDITIONING" MASTER CAUTION ILLUMINATES "PACK" LIGHT ILLUMINATES. RESETTING MASTER CAUTION CANCELS ALL LIGHTS LT PACK. GROUNDED YES. REPLACED LT PACK ZONE TEMP CONTROL VALVE P/N 398908 3 VERIFIED WITH SEAMC ED ETOPS COMPATIBLE PART. ALL BIT AND OPS CHECKS C/W PER BMM 21-51-10.
ON RECALL LT PACK LIGHT ILLUMINATED GROUNDED YES. BITE TEST ON ZONE TEMP CONT. NR 1 SHOWS TCV FAULT THIS PACK. PERFORMED GROUND FUNCTIONAL TEST AND PACK ZONE TEMP CONTROLLER BITE TEST. NO FAULTS FOUND. OPS CHECK GOOD REF FIM TASK 21 00 00 800 REF AMM 21 61 00.
LEFT PACK LIGHT ILLUMINATED DURING RECALL NR 1 PACK TEMP CONTROLLER SHOWED THIS PACK TCV FAULT WHICH CLEARED. BOTH PACK TEMP CONTROLS CHECK OK, REF AMM 21 61 20 400 801.
APU FAULT LIGHT WOULD NOT START WAITED 5 MINUTES WOULD NOT START ON RE ATTEMPT. ON INSPECTION OF APU FOUND PLENUM DOOR FASTENERS LOOSE ON RT AFT CORNER/ ONE RETAINER CLIP WAS MISSING FROM HOUSING (ON ORDER). PER FIM: REMOVED AND REPLACED INLET PRESSURE SENSOR (PER: AMM 49 52 31) & INLET TEMP SENSOR (PER: AMM 49 61 31). INSTALLED RECEPTACLE CLIP ON APU COMPRESSOR INLET CASE PLENUM DOOR. SECURED DOOR REF MM 49 11 00 200 801.
AIRCRAFT RESTRICTED FROM ETOPS SERVICE UNTIL NR 1 ENGINE OIL CONSUMPTION RATE IS CORRECTED NR 1 ENGINE OIL CONSUMPTION WITHIN ETOPS LIMITS OF .09 REF ETOPS MANUAL 05 00 11. A/C RELEASED FROM TOP DEFERRAL. THE ETOPS STATUS OF THE AIRCRAFT HAS BEEN REINSTATED.
SPINNER FRONT CONE MISSING MORE THAN 20 PERCENT OF BLACK ANODIZED COATING. REMOVED AND REPLACED SPINNER CONE REF MM 72-21-01.
RIGHT "BLEED TRIP OFF" LIGHT CAME ON AT 41,000FT. RESET LIGHT AND LIGHT WENT OUT, LIGHT CAME BACK ON SHORTLY AFTER RESET. ON T/S FOUND PRSOV SLUGGISH AND WOULD NOT RETURN, CLOSED DURING WRENCH CHECK AND APU AIR CHECK. REPLACED PRSOV IAW MM REF 36 11 04 000 801 AND 36 11 04 400 801. OPS CHECK NORMAL DURING WRENCH CHECK AND APU AIR CHECK.
APU WON'T START. FAULT LIGHT ILLUMINATES. APU HAS HISTORY OF NO STARTS. ADDED 1 QT OIL, CLEARED FAULT. REMOVED AND REPLACED APU IGNITER PLUG AND LEAD REF MM 49 41 52, APU OPS CHECKED GOOD 4 STARTS. APU HAS HISTORY OF NO STARTS. PRIORITY 1. REMOVED AND REPLACED APU IGNITER PLUG AND LEAD REF 49 41 52 APU OPS CHECK GOOD 4 STARTS. PARTS VERIFIED PER JERRY SEAMC. TSR CLEARED
FMC DISAGREE ON THE GROUND. RESET PER FMC DISAGREE CHECK LIST. UNABLE TO DUPLICATE PROBLEM. FMS OPS NORMAL REF MM 34 61 TASK 801. NOTE FMC 10.7 SOFTWARE INSTALLED.
RED BUTTON ON APU OIL FILTER INDICATOR HAS EXTENDED ACCOMPLISHED OIL FILTER INDICATOR SERVICING. REF AMM TASK 49 91 13 PB 301.
FAULT LIGHT ILLUMINATED WHEN STARTING APU. TROUBLESHOT REF FIM 49 40 00 810 802 NO IGNITION. REMOVED AND REPLACED EXCITER IGNITION UNIT REF M/M 49 41 31. OPS CHECK OK NORMAL START NOTED.
LOUD STATIC NOISE IN COCKPIT AFTER SHUTDOWN AT GATE. FOUND WX RADAR TO TURN ITSELF ON WHEN TURNED OFF AND STAY IN TEST MODE. PULLED RT C/B AND LOUD STATIC NOISE WENT AWAY. REMOVED AND REPLACED WXR RDR RT PER MM 34 43 41. WXR RADAR OPS NORMAL PER MM 34 43 00.
THE "INFO ONLY" "FMC DISAGREE" QRH RESET PERFORMED INFO NOTED PERFORMED FMC BITE TEST REF FIM 34 61 TASK 801 WITH NO FAILED MESSAGES. AIRCRAFT OKAY FOR ETOPS FLIGHT.
LT FWD WINDOW HEAT OVERHEAT LIGHT ILLUMINATED INFLIGHT AT FL 330 43 SAT AND REMAINED ILLUMINATED AT COMPLETION OF OVERHEAT CHECKLIST. FOUND THE P63B C/B OPEN RESET C/B. C/B STAYS SET, PERFORMED BITE CHK REF FIM 30 41 00 SYS CHK'S GOOD, ACFT OK FOR SVC.
DURING ENGINE APU FIRE SYS TEST (TASKCARD 74126002 STEP 2.E) NR 1 ENGINE IDG RESISTANCE BETWEEN PINS 2 AND 3 OF CONNECTOR DP 1206 MEASURED 69K OHMS IN THE "ON" POSITION (MINIMUM IS 230K OHMS). SUSPECT NR 1 GCU. NR 1 GCU REPLACED & INSTALLATION TEST CARRIED OUT SERVICEABLE IAW AMM 24-21-01-400-801. NR 1 ENG IDG RESISTANCE BETWEEN PINS 2 & 3 OF CONNECTOR DP1206 MEASURED SERVICEABLE AT 241 KOHMS (MIN. 230KOHMS) IAW ENG APU FIRE EXT SYS TEST TC 74126002 STEP 2E.
DELTA P INDICATOR FOUND EXTENDED MAGNETIC CHIP DETECTOR REMOVED AND FOUND TO BE COVERED IN (SILVER COVERED) METAL PARTICLES. APU UNSERVICEABLE IAW AMM 49-91-81-200-801. PARA H ITEM 1. APU REPLACED WITH SERVICEABLE UNIT IAW TC 78349010.
WHEN MASTER CAUTION RECALL PRESSED AIR CONDITIONING AND LT PACK LIGHT ILLUMINATED. WHEN MASTER CAUTION RESET BOTH LIGHT EXTINGUISH. CONFIRMED LT PACK TCV FAILED NR 1 ZONE TEMP CONT REF MM 21 51 00. REMOVED & REPLACED LT PACK TCV LK & OPS NORMAL GROUND VERIFICATION SUCCESSFUL REF MM 21-51-10. LT PACK TEMP CONTROL VALVE VERIFIED REF IPC 21-51-10-03 ITEM 90.
WHILE PERFORMING S C FOUND NR 1 ENG DELTA "P" BUTTON POPPED ACCOMPLISHED FIM TASK 24 11 00 801 803 NO NR 1 ENG ACCOMPLISHED ASA T C 78273000 78424000 DRAINED NR 1 ENG OIL CHECKED FILTER RESERVICED LEAK CKD GOOD. OPD CKD GOOD PER MM 24 11 41 200 800 24 11 41 200 801. NO DEBRIS IN OIL, OIL NOT BURNED. RESET DELTA P 1.
AT 360 CLIMBING 380 AND 380 CLIMBING 400 IN VERT SPEED (500 800FM) AUTO THROTTLES WOULD NOT FOLLOW THE N1 CHEVRON (GREEN) ON N1 GAGE. (OAT 58C TAS 444 KT AT 400) USING VNAV AUTOTHROTTLES FUNCTION CORRECTLY PERFORMED FIM TASK 22 31 00 710 801 AND 22 31 00 710 802 ON AUTOTHROTTLES AND PERFORMED LAND. VERIFY TEST PER MM 22 11 00. OPS CHECK NORMAL. NO FAULTS LOGGED ON FFR. OK FOR CONTINUE SERVICE.
ON CLIMB-OUT SELECTED VNAV AND NOTICIED 209 IMMEDIATELY REPLACED 250 ON TOP OF THE AIRSPEED TAPE THE FLIGHT DIRECTOR STARTED PITCHING FOR 209 KNOTS. THE CLIMB PAGE ON THE FMC SHOWED "CLIMB ACT 209" 7 COULD NOT BE MANIPULATED ALSO LOST BEST ANGLE AND BEST RATE PROMPTS AMONG OTHER MISSING INFO USED "LVL FFR SHOWS NUMEROUS FMC DATA AND MCP DATA INVALID MSG. ACCOMPLISHED BOTH DFCS LAND VERIFY AND EXTENDED MAINT TESTS PER MM 22-11-00 AND HGS SENSORS TESTS PER MM 34-36-00. OP'S CK NORMAL. SEAMC NOTIFIED "PAT" ACFT LWMP STATUS REMAINS UPGRADED AT CAT 111A AUTOLAND AND HGS.
LEFT PACK LIGHT ILLUMINATED ON RECALL AFTER ENG START. RESETS WITH M C DEF PER MEL 21 32 LEFT PACK TEMP CONTROLLER INOP. PERFORMED BITE TEST PER FIM 21 62 801, CLEARED TCV FAULT AND RAN TEST PASS "GO". NO RECENT HISTORY. AC GOOD FOR SERVICE. FAULT DUPLICATED ON NR 1 PACK TEMP CONTROLLER, CLEARED PASS GO.
LEFT CDU BLANKED OUT FOR A MOMENT EN ROUTE. ABOUT 5 SECONDS IT WENT THROUGH A SERIES OF BIT TEST THEN CAME BACK TO A NORMAL SCREEN. CHECKED FMC INFLIGHT FAULT LEFT FMC CDU FAULTED. PERFORMED FIM 34 61 TASK 804 FAULT RESET CDU TEST GOOD REF FIM 34 61 TASK 804.
DURING RECALL GOT THE AIR COND AND ZONE TEMP LIGHT ON OVERHEAD. BITE CHECK OF PACK ZONE TEMP CONTROLLER FAULTED FLT DECK TRIM VLV. REPLACED FLT DECK ZONE TRIM VALVE. OPERATIONAL AND LEAK CHECKS OK. BITE CHECK OF PACK ZONE TEMP CONTROLLER OK.
RIGHT PACK BRAIDED LINE FROM ACM TO CONDENSER HAS 2 HOLES IN IT. REPLACED THE BRAIDED LINE FROM ACM TO CONDENSER. LEAK CHECK GOOD.
DURING TROUBLESHOOTING FOR SOURCES OF CABIN ODOR FOUND APU LOAD COMPRESSOR WITNESS HOLE TO HAVE OIL. OIL WAS PRESENT ABOVE CHECK VALVE ALSO. REPLACED APU. OP & LEAK CHECKS GOOD.
STRONG ODOR IN BOTH CABIN & FLIGHT DECK DURING DESCENT. STRONGEST IN MID DESCENT BELOW 10000, F/A'S CALLED F/O TO REPORT STRONG DIRTY SOCK ODOR. OPERATED AC PACKS DURING HIGH POWER ENGINE OPERATION, TEMP SETTING OF PACKS WERE FROM HOT TO COLD, NO DIRTY SMELL NOTED. RAN APU AND OPERATED BOTH LEFT AND RIGHT PACKS, NO ODOR NOTED. AC REQUIRES FVR NON ETOPS REVENUE FLIGHT TO DETERMINE NO UNUSUAL ODORS PRESENT. ACCOMPLISHED MAINTENANCE PER MM SUPP 05 60 00 PG 101. REF LOG PAGE 6436408 VERIFICATION FLT SATISFACTORY, THIS CLEARS THE FVR DEFERRAL.
THE "FMC DISAGREE" LIGHT ON AFTER ENGINE START. PERFORMED FIM 34 51 TASK 835 WITH NO DISCREPANCIES NOTED.
LEFTHAND AIR CONDITIONING PACK ANNUNCIATED DURING CLIMB WITH A TRIM AIR CHECK VALVE FAULT INDICATION. RESET FAULT.
RIGHT BLEED TRIP OFF LIGHT ILLUMINATED FOLLOWING A BLEEDS OFF TAKEOFF FROM LAS THE LIGHT ILLUMINATED APPROXIMATELY 60 SECS AFTER RE-ESTABLISHING THE BLEEDS ON BOTH ENGINES. BLEED RE-ESTABLISHED WITH TRIP RESET PER QRH. PRECOOLER CNTL VLV PASSED HEALTH CHECK. ACCOMPLISHED BLEED AIR CROSSOVER OPS TEST OPS NORMAL. PERFORMED BLEED AIR REG PRSOV 450 DEGREE CHECK. PRECOOLER CNTL VLV FAILED TO OPEN FULLY BEFORE CONTROL PRESSURE REACHED 3PSIG. REPLACED PRECOOLER CONTROL VALVE.
RIGHTHAND ENGINE BLEED TRIPPED DURING CLIMB AT 2000 MSL. REPLACED HIGH STAGE VALVE.
PRESSURIZATION CONTROL "AUTO FAIL" AND "ALTN" ILLUMINATED NR 2 PRESSURE CONTROLLER LOGGED SEL PNL LRU FAILURE. PERFORMED FIM 21-31 TASK 801 AND FIM 21-31 TASK 803. FAULT CLEARED BITE CHECK GOOD.
WHILE DOING TASKCARD 72131000 ALTITUDE WARNING FAILED. REPLACED CABIN PRESSURE WARNING SWITCH. OP CHECKS GOOD.
FIRST OFFICER'S HF 2 MIC SELECTOR. REPLACED F/O'S AUDIO CONTROL PANEL PER AMM 23 51 02.
LEFT DUCT PRESSURE INDICATOR FLUCTUATED DURING CLIMBOUT AT 3 SECOND INTERVALS. INITIALLY 35 PSI TO 55 PSI, ABOVE 10 000' 35 PSI TO 50 PSI. FLUCTUATION QUIT APPROACHING FL190. BOTH INDICATORS FLUCTUATED TOGETHER THEN SETTLED OUT. PERFORMED NR 1 ENGINE BLEED AIR REGULATOR AND PRSOV HEALTH CHECK. PRSOV FAILS HEALTH CHECK. REPLACED PRSOV & BLEED AIR REGULATOR. OP CHECKED BLEED AIR CONTROL SYSTEM. OP CHECKS OK NO FLUCTUATIONS OR ABNORMAL INDICATIONS.
ON DEPARTURE, BLEED AIR DUCT PRESSURE OSCILLATED BETWEEN 20 AND 40PSI. LT NEEDLE APPEARED TO BE CHASING RT WITH NEVER MORE THAN 10 PSI SEP. REPLACED HIGH STAGE REGULATOR. BLEED AIR SYSTEM, OP CHECKS NORMAL.
ON DEPARTURE BLEED AIR DUCT PRESSURE OSCILLATED BETWEEN 20 AND 40PSI. LT NEEDLE APPEARED TO BE CHASING RT WITH NEVER MORE THAN 10 PSI SEP. REPLACED NR 2 ENGINE BLEED AIR REGULATOR. BLEED AIR SYSYTEM, OP CHECKS NORMAL.
FMC FAIL ON BOTH CAPT'S AND F O'S. RESTORED BOTH AND CONTINUED. PERFORMED FMC OPERATIONAL TEST PER 34 61 00. NO DEFECTS NOTED. FMC'S CHECK NORMAL.
APU QUIT WHILE BEING DE ICED. SUSPECT GLYCOL INJESTION. RESTARTED AFTER APPROXIMATELY 5 MINUTES. RAN BOTH PACS CYCLED BETWEEN HOT AND COLD VERIFIED NO ODORS EXIST IN CABIN AND FLIGHT DECK. COMPLETED FIM 49 55 TASK 802. FOUND NO GLYCOL IN APU DUCTS, NO ODOR NOTICED.
APU STOPPED DURING DE-ICE ON GROUND. COULD NOT DUPLICATE. APU STARTED OK. CHECKED FOR GLYCOL IN INLET, NONE FOUND.
LEFT ENGINE GE REMOTE DIAGNOSTICS TREND DATA SHOWED GREATER THAN NORMAL EGT HDM LOSS WITH EGT AT THE ESTABLISHED THESHOLD. ACCOMPLISHED ENGINE COMPRESSOR WASH ON 25 JAN 08 PER MM SUPPLEMENT 72 00 00 PP 710 715.
ON RECALL "ZONE TEMP" LIGHT ILLUMINATED. LIGHT CLEARS WITH MASTER CAUTION RESET. PERFORMED FIM 21 62 TASK 842 & TEMP CONTROLLER BITE PROCEDURE 21 62 TASK 801. OP CHECKS GOOD, NO FAULT FOUND. TESTS NORMAL.
ENGINE TREND DATA SHOWS EGT HOT DAY MARGIN HAS NOT RECOVERED FROM CONNECTOR CLEANING. REPLACE T49.5 PROBE. REPLACED T49.5 PROBE. OP TEST GOOD.
NR 1 ENGINE TREND DATA SHOWS AND INCREASE IN CRUISE DELTA EGT ALONG WITH A DECREASE IN TAKEOFF EGT HOT DAY MARGIN. ACCOMPLISHED CLEANING PER MM 77-21-00 PGS 201-202. ALL CONTACTS LOOK GOOD. NOTE: S1 &S2 VALUES ARE NEAR 35 DEGREE DIFF LIMIT.
NR 1 ENGINE HIGH OIL CONSUMPTION, 8 QTS PER HOUR. ACCOMPLISHED HPC BORO STAGES 1&2 FOR OIL CONTAMINATION. NO OIL NOTED IN HPC. RAN MOTOR, NO LEAKS NOTED. FOUND ENGINE TO BE OVERSERVICED BY 0.5 QTS. DRAINED 0.5 QTS FROM ENGINE. SIGHT GLASS SHOWS FULL.
BLEED TRIP OFF LIGHT ILLUMINATED ON DEPARTURE FROM LIH. FOLLOWED QRH AND PROBLEM CLEARED. PERFORMED FIM 36 10 TASK 801. REPLACED NR 2 ENGINE HIGH STAGE VALVE. PERFORMED REPAIR CONFIRMATION PER FIM 36 10 TASK 801. REPAIR CONFIRMED.
APU "MAINT" LIGHT ILLUMINATED. PERFORMED BITE TEST OF APU REF FIM 49 60 TASK 801. MAINT MSG SHOWS NR 49 41244 START CONV SHOWS FAILED GENERATOR DIODE. REPLACED APU STARTER CONVERTER AND STARTER GENERATOR.
AT PUSHBACK APU MAINTENANCE LIGHT ILLUMINATED. ACCOMPLISHED FIM 49 40 TASK 806 & FIM 49 60 TASK 801. COULD NOT VERIFY DISCREPANCY.
STABILIZER OUT OF TRIM LIGHT ILLUMINATED DURING ACCELERATION. APPEARS AUTO PILOT NOSE DOWN TRIM IS INOP. REPLACED STABILIZER TRIM MOTOR.
THE "AUTO FAIL" & "ALTN" LIGHTS ILLUMINATED. COULD NOT DUPLICATE DISCREPANCY. REPLACED CABIN PRESS CONTROLLER AS A PRECAUTION. ALL BITE TESTS PASS.
THE "AUTO FAIL" & "ALTN" LIGHTS ILLUMINATED. COULD NOT DUPLICATE. REPLACED CABIN PRESSURE CONTROL MODULE AS A PRECAUTION. ALL BITE TESTS PASS.
FUEL PUMP LEFT CENTER TANK -LOW PRESS- LIGHT DOES NOT EXTINGUISH WITH PUMP ON & CENTER FUEL JUST OVER 1000 LBS. UNABLE TO VERIFY DISCREPANCY. PASSES ALL TESTS PER FIM.