N518AS
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
WHILE WORKING TC 78233001 FOUND INCORRECT LENS INSTALLED FOR INTERIOR EMERGENCY EXIT LENS AT ROW 16 DEF. (MISSING ARROW INDICATION). GROUNDED - YES. DURING LENS REPLACEMENT FOUND LENS SUPERGLUED TO ASSY, BREAKING ATTACHMENT POINT. REMOVED & REPLACED L1207 EMERGENCY EXIT SIGN LIGHT ASSY AT 16 DEF REF WDM 33-51-21-10 & AMM 33-51-01-960-802. OPS CHECKED GOOD.
DURING GVI OF SKIN CRACK FOUND LH HORIZONTAL RIB #2 TO BE CRACKED IN 2 PLACES. GROUNDED - YES. REPAIRED LH HORIZONTAL RIB #2 IAW B737-800 SRM 55-10-09-2R-4.
CORROSION AND SCRIBE MARKS FOUND ON THE INTERCOSTAL BETWEEN 312 AND 328 BEAMS AT BL 12L. GROUNDED - YES. REMOVED AND REPLACED NEW INTERCOSTAL BETWEEN 312 AND 328 BEAMS AT BL 12L IAW B737-800 SRM 51-40-02-0G-0W= 1" O= .080 R= .069" L= 1" D= .011".
DURING GVI OF SKIN CRACK FOUND LH HORIZONTAL RIB #8 TO BE CRACKED. GROUNDED - YES. REPAIRED L/H HORIZONTAL RIB #8 IAW B737-800 SRM 55-10-09-2R-4.
DURING GVI OF SKIN CRACK FOUND LH HORIZONTAL RIB #5 TO BE CRACKED. GROUNDED - YES. REPAIR LH HJORIZONTAL RIB #5 IAW B737-800 SRM 55-10-09-2R-4.
INTERCOSTAL BETWEEN 312 BEAM AND 328 BEAM IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED NEW INTERCOSTAL BETWEEN 312 BEAM AND 328 BEAM IAW B737-800 SRM 51-40-02-0G-0.
AFT WET AREA. THE 947.5 BEAM HAS SEVERAL AREAS OF CORROSION FROM BL R12 TO BL L12. GROUNDED - YES. REMOVED CORROSION FROM THE AFT WET AREA 947.5 BEAM AND BEAM WAS FOUND TO BE OUT OF LIMITS FROM BUTTLINE 12R TO BUTTLINE 12L IAW B737-800 SRM 53-70-51-1A-1. PERFORMED REPAIR ALTERNATIVE 2 ON THE UPPER FLANGE OF THE T-CHORD BETWEEN BL 12L AND BL 12R IAW B737-800 SRM 53-70-51-2R-5. W= .75" O= .180 R= .120" L= 1.50" D= .060".
DURING GVI OF SKIN CRACK FOUND RH HORIZONTAL RIB #2 TO BE CRACKED IN 2 PLACES. GROUNDED - YES. REMOVED & REPLACED RH HORIZONTAL RIB #2 IAW B737-800 SRM 51-40-02-0G-0.
DURING GVI OF SKIN CRACK FOUND LH HORIZONTAL RIB #6 TO BE CRACKED IN 2 PLACES. GROUNDED - YES. REPAIRED LH HORIZONTAL RIB #6 IAW B737-800 SRM 55-10-09-2R-4.
DURING GVI OF SKIN CRACK FOUND LH HORIZONTAL RIB #7 TO BE CRACKED. GROUNDED - YES. REPAIRED L/H HORIZONTAL RIB #7 IAW B737-800 SRM 55-10-09-2R-4.
FWD CARGO PIT RH SIDE TRANSITION PANEL HAS CORRSION SPOTS FROM STA 500A TO STA 500I. GROUNDED - YES. REMOVED AND REPLACED NEW TRANSITIO NPANEL ON FWD CARGO PIT RH SIDE FROM STA 500A TO STA 500I IAW B737-800 SRM 51-40-02-0G-0W= 1" O= .040 R= .030 L= 1" D= .010.
AFT CARGO PIT RH CARGO TRACK HAS CRACKS AT STA 767, 747, 727J, 727I, 727H, 727G AND 727C. GROUNDED - YES. REMOVED AND REPLACED NEW RH CARGO TRACK ON AFT CARGO PIT FROM STA 727A TO STA 887 IAW B737-800 SRM 51-40-02-0G-0.
FWD CARGO PIT LH TRANSITION HAS AREAS OF CORROSION BEGINNING AT STA 500 AND RUNNING AFT TO STA 500I (DOT 005). GROUNDED - YES. REMOVED AND REPLACED NEW TRANSITION PANEL ON FWD CARGO PIT LH SIDE FROM STA 400 TO STA 500I IAW B737-800 SRM 51-40-02-0G-0 W=1" O= .040" R= 033" L= 2" D= .007".
AFT PIT RT TRANSITION PANEL HAS AREAS OF CORROSION FROM STA 727 TO STA 787. GROUNDED - YES. THE AFT PIT RH TRANSITION PANEL WAS FOUND TO HAVE CORROSION IN SERVERAL SPOTS THAT WERE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2. FABRICATED AND INSTALLED NEW RH TRANSITION PANEL FROM STA 727-STA 767 IAW B737-800 SRM 51-40-02-0G-0W= 1" O= .040" R= .032 L= 1" D= .008".
AFT PIT LH TRANSITION PANEL HAS AREAS OF CORROSION FROM STA 847 TO STA 727. GROUNDED - YES. REMOVED AND REPLACED TRANSITION PANEL AT AFT CARGO LH FROM STA 727 TO STA 847 IAW B737-800 SRM 51-40-02-0G-0W= 1" O= .040" R= .025" L= 2" D= .015".
AFT CARGO DOOR CUTOUT LOWER SILL FWD SIDE PLATE HAS CORROSION IN MULTIPLE LOCATIONS. GROUNDED - YES. AFT CARGO DOOR FWD SHIELD HAD CORROSION THAT WAS FOUND TO BE BEYOND ALLOWABLE DAMAGE IAW B737-800 SRM 53-60-15-1A-1. REMOVED AND REPLACED WITH NEW SHIELD IAW SRM 51-40-02-0G-0.W= 2" O= .050" R= .041" L= 3" D= .009".
AFT CARGO DOOR CUTOUT LOWER SILL PLATE HAS CORROSION IN MULTIPLE LOCATIONS. GROUNDED - YES. REMOVED & REPLACED LOWER SILL PLATE ON AFT CARGO DOOR CUTOUT IAW B737-800 SRM 51-40-02W= 1" O= .040" L= .032" L= 2" D= .008".
LH HORIZONTAL STAB LOWER SKIN IS CRACKED AT RIB 12 IB SIDE 10 IN FROM TE. GROUNDED - YES. REPAIRED L/H HORIZONTAL STAB LOWER SKIN AT RIB 12 IB SIDE 10 IN FROM T/E IAW B737-800 SRM 55-10-01-2R-11 THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES & INTERVAL INSPECTION AT 9,000 FLIGHT CYCLES BY DVI & LFEC INSPECTION.
LH HORIZONTAL STAB LOWER SKIN IS CRACKED AT RIB 8 IB SIDE 18 IN FROM TE. GROUNDED - YES. REPAIRED L/H HORIZONTAL STAB LOWER SKIN AT RIB 8 IB SIDE 18 IN FROM T/E IAW B737-800 SRM 55-10-01-2R-11 THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES & INTERVAL INSPECTION AT 9,000 FLIGHT CYCLES BY DVI & LFEC INSPECTION.
LH HORIZONTAL STAB LOWER SKIN IS CRAKED AT RIB 7 IB SIDE 26 IN FROM TE. GROUNDED - YES. REPAIRED L/H HORIZONTAL STAB LOWER SKIN AT RIB 7 I/B SIDE 26IN FROM T/E IAW B737-800 SRM 55-10-01-2R-11 THIS IS A CATEGORY B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES & INTERVAL INSEPCTION AT 9,000 FLIGHT CYCLES BY DVI & LFEC INSPECTION.
RH HORIZONTAL STAB LOWER SKIN IS CRACKED AT RIB 6 IB SIDE 18 IN FROM TE. GROUNDED - YES. PERFROMED REPAIR IAW B737-800 SRM 55-10-01-2R-11 ON R/H HORIZONTAL STAB LOWER SKIN AT RIB 6 I/B SIDE 18 I NFROM TE & RIB 6 IB SID 10IN FROM T/E & RIB 8 I/B SIDE 10 IN FROM TE THIS IS A CAT B REPAIR WITH INSPECTION THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES AND INTERVAL OF 9,000 FLIGHT CYCLES FOR DVI AND LFEC.
FA REPORTS EXIT SIGN FOR R1 DOOR FELL OFF. GROUNDED - YES. RE-ATTACHED FWD GALLEY EM EXIT LENS COVER. GND TEST OK.
FOUND 3 EMERGENGY LIGHT BATTERIES FAILED DURING TC 78233001. GROUNDED - YES. REPLACED EMERGENCY LIGHT BATTERY PACKS IAW 33-51-06. OPS TEST GOOD.
WHILE ACCOMPLISHING A-CK, W/O 1984529, FOUND 15.5 IN SECTION OF PHOTOLUMINESCENT STRIP ON FLOOR NEAR SEAT 12C MISSING. GROUNDED - YES. REPLACED MISSING SECTION OF PHOTOLUMINESCENT STRIP REF AMM 33-51-15. OK FOR SERVICE.
L2 WINDOW HEAT OVERHEAT LIGHT ILLUMINATED DURING CLIMBOUT. GROUNDED - YES. PERFORMED WINDOW HEAT CONTROL UNIT SYSTEM TEST ON L2 WINDOW REF B737-800 AMM 30-41-11. OPS CHECK GOOD.
TECH SERVICE REQUEST. FOLLOW UP TO REPORT OF CONTROL CABIN ZONE TEMP ON RECALL.PRI2. GROUNDED - YES. (RESOLVED ON W/O: 1973340 TASKCARD: N/R-00004 ) PER. TECH SERVICE REQUEST (TSR), REMOVED AND REPLACED CONTROL CABIN TRIM AIR MODULATING (CONTROL) VALVE I.A.W. AMM 21-61-21. OPS CK AND LEAK CK GOOD. JCLARKSON 16226PERFORMED BITE OF CONTROLLERS REF AMM 21-61-00. JHONG 60974THIS CLEARS TSR715110, SEAMC.
DURING MASTER RECALL CONTROL CABIN ZONE TEMP ILLUMINATES EXTINGUISHES WITH RESET. GROUNDED - YES. #2 ZTC LOGGED FLT DECK TRIM VALVE - SYS BITE TEST GOOD - FAULT RESET. NO HISTORY.
AUTO FAIL AMBER LIGHT & GREEN ALTN LIGHT. GROUNDED - YES. #2 CPC LOGGED SEL MOD - #1 & #2 CPC BITE TEST GOOD. FAULT CLEARED. NO HISTORY.
L SIDE WINDOW HEAT CAUTION ILLUMINATED AFTER TAKEOFF. QRH RESET SUCCESFUL. L SIDE WINDOW HEAT CAUTION LIGHT ILLUMINATED AGAIN AT 500' AGL ON APPROACH. GROUNDED - YES. TURNED L SIDE WINDOW HEAT ON AND WAITED APPROX 30 MINUTES. NO OVERHEAT LIGHT ILLUMINATED. PERFORMED L SIDE WINDOW HEAT BITE CK REF FIM 30-41 TASK 801 NO ACTIVE FAULTS FOUND AND NO FAULTS IN HISTORY. NO PREVIOUS HISTORY PAST 30 DAYS. OK FOR CONTINUED SERVICE.
HF 2 INDICATES FAIL, FAIL. GROUNDED - YES. RESET HF 2 IAW FIM 23-11 TASK 802. OPS CHECK GOOD. FAULT CLEARED.
RIGHT SIDE WINDOW OVERHEAT ILLUMINATED. ACCOMPLISHED QRH. WHEN WINDOW HEAT SWITCH WAS TURNED ON, THE OVERHEAT LIGHT ILLUMINATED AGAIN. GROUNDED - YES. GVI OF RIGHT SIDE WINDOW HEAT TERMINALS, CONNECTOR FOR COIL CORD 2X, & CB = FOUND R SIDE WINDOW HEAT CB OPENED. OPENED P6-12 CB PANEL = GVI OF CB & TERMINALS CHECK OK. RESET R SIDE WINDOW CB. BITE TEST OF WHC FAULTED WINDOW SENSOR. WIRING & SENSOR RESISTANCE WITHIN LIMITS, RESISTANCE OF R SIDE WINDOW HEAT FILM IS WITHIN LIMITS. R SIDE WINDOW REPLACED 6/22/23, R SIDE C/B FOUND OPEN 09/07/23. R SIDE WINDOW CB NOW FOUND OPEN 2X. OPS CHECK OF WINDOW HEAT SYSTEM CHECKS OK. PRESSURIZED A/C WHILE OPS CHECKING WINDOW HEAT CHECKS OK. AS A PRECAUTION REPLACED WINDOW / PITOT HEAT MODULE (P5-9) WITH SERVICEABLE UNIT, OPS CHECKS OK. REF FIM 30-41 TASK 801 & 811, AMM 30-41-21 & 30-41-41, WDM 30-41-11, AMM 20-60-01-860-801. ETOPS GROUND VERIFICATION CHECK SUCCESSFUL.
RIGHT SIDE #2 WINDSHIELD OVERHEAT. NO RESET. GROUNDED - YES. DURING ACCOMPLISHMENT OF LL1 CHECK FOUND C/B B8 ON P6-11 OPEN, RIGHT SIDE WINDOW HEAT. INSPECTED BEHIND P6-11 PANEL, NO DEFECTS NOTED. RESET CB B8. OPS CK RIGHT SIDE WINDOW HEAT PER AMM 30-41-00. THIS CLEARS MEL 30-11E. NO CONFIGURATION CHANGE. SEAMC PETER NOTIFIED. PLACARDS REMOVED.
ENG 1 SHORT TIME FAULT 73-30311 "THE START SWITCH SIGNAL AND ARINC BUS DATA DISAGREE" FOUND WHILE PERFORMING T/C 78273000. GROUNDED - YES. PERFORMED T/C 78273000, VERIFIED FAULT MSG 73-30311 NOT LOGGED IN THE LAST 10 FLT LEGS ON #1 ENG. REF FIM TASK 73-24 TASK 813, #1 ENG EEC BITE TEST PASSED W/O FAULTS. CLOSED THIS PLT DEFERRAL C/N 15018518. SEAMC PETER NOTIFIED.
DURING T/C78273000, FOUND SHORT TIME FAULT 73-30312 START SWITCH AND ARINC BUS DATA DISAGREE ON ENGINE 2. GROUNDED - YES. PERFORMED FIM 73-24 TASK 813, INT EVAL PASSED. NO FAULT HISTORY NOTED ON #2 ENGINE BITE TEST. NO HISTORY TRAX 30 DAYS.THIS CLEARS PLT C/N 09084518, SEAM ANDY NOTIFIED.
WEATHER RADAR DEPICTS WX RETURN AT 2 O'CLOCK POSITION WITH NO WX PRESENT RETURN IS NARROW BAND. GROUNDED - YES. RE-SEATED WXR R/T ACCOMPLISHED WXR OPS CHECK NORMAL B737-800 AMM 34-43-00 OPS CHECK NORMAL.
RH SIDE OVERHEAT CAUTION ILLUMINATED INFLIGHT. GROUNDED - YES. ACCOMPLISHED WHCU BITE REF B737-800 FIM 30-41 TASK 801. NO CURRENT FAULTS WERE LOGGED. R2 WINDOW INSTALLED IS MARKED H14, BUT HAS THE RESISTANCE OF AN H15. SWAPPED THE TAP FROM TERMINAL #3 TO #2 REF B737-800 WDM 30-41-11. OP CK GOOD REF B737-800 AMM 30-41-00-710-801.
OVERHEAT CAUTION LIGHT ON R SIDE. GROUNDED - YES. BITE TEST OF WHCU SHOW WINDOW SENSOR. PERFORMED RETAPPING OF RH SLIDING WINDOW REF B737-800 AMM 56-12-11-400-801 STEPS F.(7) AND 8. REMOVED AND REPLACED R2 WINDOW REF AMM 56-12-11. LEAK CHECK GOOD, OPS CHECK FAILED REF AMM 30-41-00-710-801. OVERHEAT LIGHT ILLUMINATES IMMEDIATELY DURING TEST FOR R2 WINDOW. CHECKED AND FOUND WALL CONNECTOR LOOSE AND WIRE IN SIDEWALL TWISTED FOR CONNECTOR D10564 UNTWISTED AND SECURED CP REF B737-800 WDM 30-41-11-6. OP CK GOOD PER AMM 30-41-00-710-801.
EMERGENCY LIGHT SWITCH STUCK IN THE OFF POSITION. GROUNDED - YES. ADJUSTED OVHD EMERGENCY LIGHT SWITCH GUARD OPS NORMAL REF B737-800 AMM 33-50-0.
HF1 + HF2 DIFFICULT TO HEAR TRANSMISSIONS. SELCAL WORKS FINE. GROUNDED - YES. PERFORMED GOOD HF1 AND HF2 COMMUNICATION SYSTEM - SYSTEM TEST. REF B737-800 AMM 23-11-00/501.
SUBTASK 839-004 ONE CRACK INDICATION FOUND APPROX 1/8"L. LOCATION IS ON THE 92.70 STAB STA AND 101.90 OFF THE 101.90 FASTENER SIDE, FWD OF PREVIOUS REPAIR. GROUNDED - YES. REPAIRED R/H LOWER HORIZONTAL SKIN WITH 2024-T3 IAW B737-800 SRM 55-10-01-2R-11THIS IS A CATEGORY B REPAIR WITH A 56,000 FLIGHT CYCLES AND 9,000 FLIGHT CYCLE INTERVALS.
ON PREFLIGHT, HF RADIO #1 DISPLAP "FAIL FAIL" ON THE RADIO TUNNING PANEL. GROUNDED - YES. RE SEAT HF C/B BITE CHECK SUCCESSFUL RE B737-800 FIM TASK 23-11 TASK 801.
#1 ENGINE OIL TREND DATA SHOWS OIL CONSUMPTION TO GREATER THAN EXPECTED. ETOPS ENGINE POWER RUN REQUIRED. GROUNDED - YES. FOUND EVIDENCE OF OIL LEAKING AT STARTER AND QAD. REMOVED AND REINSTALLED STARTER AND QAD AND REPLACED THEIR SEALS IAW B737-800 AMM 80-11-01 AND AMM 80-11-02. OPS AND LEAK CHECK GOOD.
LEFT PACK LIGHT ON MASTER CAUTION RECALL. GROUNDED - YES. DURING VERIFY NOTED LH RAM AIR INLET ACTUATOR EMITTING A CLICKING SOUND. REMOVED AND REPLACED LH RAM AIR INLET ACTUATOR REF B737-800 AMM 21-51-21.
AFTER LANDING 1ST ATTEMPTED APU START FAIL LIGHTS ILLUMINATED, NO START. 2ND ATTEMPT APU START FINE. GROUNDED - YES. COLD SOAK START PASSED.
#2 FUEL QUANTITY INDICATOR HAS GONE BLANK 5 TIMES INFLIGHT CAUSING THE TOTAL FUEL INDICATOR TO GO BLANK. HAS DONE IT WITH CENTER PUMPS ON AND OFF. FUEL INDICATORS WILL COME BACK AFTER 15 SECONDS OR SO. GROUNDED - YES. CURRENTLY SYSTEM WORKS AND FQIS BITE PASSES BUT FAULT HISTORY IN FQIS HISTORY PAGE HAS NUMEROUS FUEL PROCESSOR FAULTS, CODE 28-41209. REMOVED AND REPLACED FQPU IAW B737-800 AMM 28-41-81. OPS CHECK GOOD.
SPEED TRIM FAIL LIGHT ILLUMINATED ON P5 OVERHEAD PANEL. GROUNDED - YES. PERFORMED B737-800 FIM 22-11 TASK 849. AUTOTEST, SPEED/STAB TRIM SFC TESTS OK. OPS NML.
SPEED TRIM FAIL LIGHT ILLUMINATED. GROUNDED - YES. SPEED TRIM OPS CHECK GOOD IAW B737-800 FIM 22-11-TASK 849.
SATCOM LOCKED-UP. GROUNDED - YES. SATCOM BREAKER PULLED IN FLIGHT PER SATCOM LOCK-UP PROCEDURE PER QRH. SATCOM RESTORED. VERIFIED SATCOM C/B CLOSED.
CPDLC LOGGING OFF. GROUNDED - YES. ACCOMPLISHED QRH SATCOM LOCKUP PROCEDURE
AFTER ENGINE START, MASTER CAUTION ON RECALL, LEFT PACK LIGHT REMAINS ON BUT RESETS - EXTINGUISHES WITH RECALL. GROUNDED - YES. ACCOMPLISHED PZTC BITE FOR L/H PACK REF AMM 21-61-00. BITE TEST GOOD. PREV FLT SHOWED L/H RAM AIR ACTUATOR FAULT. NO OTHER DEFECTS NOTED.
EMERGENCY LIGHT BATTERY PACK M2335 FAILED OPERATIONAL TEST GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK M2335 IAV B737-800 AMM 33-51-06. OPS CHECK GOOD.
LH PACK LIGHT ILLUMINATED ON RECALL. EXTINGUISHED ON RESET. GROUNDED - YES. ACCOMPLISHED #1 PZTC BITE AND HAD "RAM AIR ACT" FAULT ILLUMINATED ON PREV FLIGHT. ACCOMPLISHED #1 PZTC BITE "VERIFY" AND BITE TEST PASS REF B737-800 FIM 21-62 TASK 837. NO HISTORY 30 DAYS. GROUND VERIFICATION TEST SUCCESSFUL.
RIGHT ELEVATOR PITOT MASTER CAUTION AFTER NR 2 ENGINE START. GROUNDED - YES. FOUND CIRCUIT BREAKER RT ELEVATOR PITOT HEAT TRIPPED. PERFORMED C/B RESET IAW AMM 20-60-01. NO HELP. CB TRIPS WHEN SWITCHED ON. REMOVED AND REPLACED THE RT ELEVATOR FEEL SYS PITOT PROBE IAW AMM 27-31-94, CLOSED P18-3 D4, C/B HEATER ELEVATOR PITOT RIGHT. OPS CKS GOOD, ALL TESTS PASSED. LEAK CHECKED GOOD. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.
DURING AFTER START RECALL, MASTER CAUTION "AIR COND" CONT CABIN "ZONE TEMP" ILLUMINATED, RESET WITH MASTER CAUTION, RAN QRH-SUCCESSFUL. GROUNDED - YES. #2 PACK TEMP BITE SHOWS FLT DECK TRIM VALVE FAULT, MSG CLEARED, RAN PACKS & RE-VERIFY BITE, TEST PASS REF B737-800 FIM 21-60 TASK 801. NO HISTORY PAST 30 DAYS.
REF ASA T/C # 78472000 #2 ENG. INLET AND FAN BLADES- DETAILED INSPT. FOUND GLASS FAN CASE PANEL HAS 1 EA. FASTENER INSERT DELAM. FROM PANEL. AFT LWR FASTENER. (N1) ALF. GROUNDED - YES. REMOVED AND REPLACED FAN DUCT PANEL REF B737-800 AMM 72-25-07.
FMC INITIALIZED FOR ANOTHER FLIGHT AND UNABLE TO CLEAR AND RE-INIT FOR NEW FLIGHT. GROUNDED - YES. RESET BOTH FMCS PER B737-800 FIM 34-61 TASK 836. PREVIOUS FLIGHT PLAN CLEARED. OPS TEST GOOD.
HF2 INTERMITTENTLY UNABLE TO TRANSMIT RECEIVE OK. GROUNDED - YES. PERFORMED B737-800 FIM 23-11 TASK 806. HF1 AND HF2 OPS CHECK GOOD.
NUMBER 2 HF/SAT XFER SWITCH WILL NOT ENGAGE WHEN PUSHING. GROUNDED - YES. REMOVED & REPLACED HF/SAT PANEL PERFORMED SYSTEM TEST IAW B737-800 AMM TASK 23-15-00-730-801. OPS CK NORMAL.
HF1 TRANSMITS OK BUT GARBLED RECEIVED, SELCAL OK. GROUNDED - YES. PERF HF1 BITE TEST PASSED, REF B737-800 AMM 23-11-00. COMMUNICATION TRANSMITS LOUD AND CLEAR.
CONT CABIN ZONE TEMP LIGHT ON RECALL. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE IAW B737-800 FIM 21-62-00 - #2 ZONE TEMP CONTROLLER SHOWED FLT DK TRIM VALVE FAULT. CLEARED FAULT DURING BITE CHECK. RAN BITE AGAIN - NO FAULTS NOTED. NO HISTORY PAST 30 DAYS.
PER ASA TASK CARD 78472000 SPINNER FRONT CONE IS MISSING MORE THEN 50 PERCENT ANODIZED COATING. GROUNDED - YES. REMOVED & REPLACED #1 ENG SPINNER FRONT CONE REF B737-800 AMM 72-21-01.
DURING TAKEOFF LIVE UP, #2 AUTOTHROTTLE DID NOT ADVANCE. GROUNDED - YES. ACCOMPLISHED AUTOTHROTTE SYSTEM TEST WITH NO FAULTS FOUND REF B737-800 AMM 22-31-00-710-802.
HF#2 SHOWS FAIL ON ACTIVE AND FAIL ON STANDBY. GROUNDED - YES. PERFORMED BITE REF B737-800 FIM 23-11 TASK 801. NO DEFECTS NOTED. OK FOR SERVICE.
RIGHT PACK LIGHT CAME ON AFTER TAKEOFF WITH NO MASTER CAUTION WARNING. RAN ASA QRH AND WAS ABLE TO GET PACK LIGHT TO EXTINGUISH. GROUNDED - YES. REMOVED AND REPLACED R/H PACK TCV REF B737-800 AMM 21-51-10/401.
RIGHT PACK LIGHT ILLUMINATED WHEN RECALL IS PUSHED. GROUNDED - YES. PERFORMED PACK/ZONE TEMP CONT BITE TEST REF B737-800 AMM 21-61-00-700-806-002 FOUND TCV FAULT ON CONTROLLER #2. FAULT CLEARS. NO FURTHER DEFECTS NOTED.
RT PACK ILLUMINATED ON RECALL. GROUNDED - YES. PERFORMED PTC BITE, FOUND TCV LIGHT ON ON IN "THIS PACK", ON ZTC 2. ACCOMPLISHED B737-800 FIM 21-62 TASK 831 AFTER C/B RESET GREEN GO LIGHT COME ON, PER FIM NO FURTHER ACTION NECESSARY.
EMERGENCY EXIT LIGHT COVER (NEAR FLOOR) MISSING AT 16A. GROUNDED - YES. R&R EXIT SIGN LIGHT ASSY AT 16A OPS CK NORMAL REF B737-800 AMM 33-51-01-960-802.
HF#1 FAIL. GROUNDED - YES. RESET AND PERFORMED OPERATIONAL TEST OF THE HF #1 IAW B737-800 AMM 23-11-00. FAULT CLEARED. OPS CHECK OK.
L AND R OVERWING EXIT LIGHTS FAIL CAPACITY CHECK REF ASA T/C 78233001. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK FOR LEFT AND RIGHT OVERWING EXIT LIGHT ASSY IAW B737-800 AMM 33-51-06. OPS CHECK GOOD.
ENGINE #1 FAULT CODE 73-21701. ADIRU TAT DATA AND THE T12 SIGNAL DISAGREE. SHORT TIME DEFERRED PER ASA T/C 78273000. GROUNDED - YES. T12 SENSOR CHB PINS 1 TO 2 OPEN REF B737-800 FIM 73-28 TASK 801 TABLE 201. REPLACED T12 SENSOR, EEC TEST PASS B737-800 AMM 73-21-05. REPAIR CONFIRMATION SUCCESSFUL PER SAME.
ENGINE #1 FAULT CODE 73-30901, T12 SIGNALS DISAGREE. SHORT TIME. DEFERRED PER ASA T/C 78273000. GROUNDED - YES. ON DEFERRAL. ENGINE #1 FAULT CODE 73-30901, T12 SIGNALS DISAGREE. SHORT TIME. DEFERRED PER ASA T/C 78273000. GROUNDED - YES. T12 SENSOR CHB PINS 1 TO 2 OPEN REF B737-800 FIM 73-28 TASK 801 TABLE 201. REPLACED T12 SENSOR, EEC TEST PASS MM 73-21-05. REPAIR CONFIRMATION SUCCESSFUL PER SAME.
ON TAXI OUT, F/O NAV DISPLAY MAP AND NO MAGENTA LINE. GROUNDED - YES. ACCOMPLISHED RH FMC RESET, BITE TEST OPS NORMAL, REF B737-800 FIM 34-61-00-810-801. RE-ALIGNED IRU'S, OPS NORMAL. REF FIM 34-21 TASK 804.
MISSING FMC PROMPTS FOR NORMAL OPERATIONS. GROUNDED - YES. PERFORMED FMC BITE REF B737-800 FIM 34-61 TASK 801. NO FAULTS FOUND.
LEFT FWD WINDOW OVERHEAT LIGHT ILLUMINATED DURING CLIMB. LIGHT STAYED ON AFTER QRH PROCEDURE ACCOMPLISHED. GROUNDED - YES. REMOVED P59 PANEL NO FIX. REINSTALLED ORIGINAL P59 PANEL IAW B737-800 AMM 30-41-41. REMOVED AND REPLACED LEFT FWD #1 WINDOW IAW AMM 56-11-11, REMOVED AND REPLACED WINDOW HEAT CONTROL UNIT LEFT FRONT IAW AMM 30-41-11. ALL OPERATIONAL CHKS GOOD.
ON MCP, VNAV SWITCH LIGHT - INOP. GROUNDED - YES. REMOVED DFCS MODE CONTROL PANEL (MCP) PER B737-800 AMM 22-11-34-000-801. INSTALLED MCP PER AMM 22-11-34-400-801 ACCOMPLISHED FOLLOWING DFCS TESTS BITE GROUP #49 LAND VERIFY TEST PER AMM 22-11-00-700-801, LRU REPLACEMENT TEST PER AMM 22-11-34-740-801, BITE LIBRARY TESTS 60.16, 60.57, 60.50,.51,.52,.53,.54,.55,.56,.57,.58,.59,.61, AND 60.62. ALSO ACCOMPLISHED AUTOTHROTTLE SYSTEM OPS TEST PER AMM 22-31-00-710-801 ALL TESTS PASSED.
AT FL360 RT PACK DUCT PRESS 9 PSI LEFT PACK DUCT PRESS 42PSI. GROUNDED - YES. AIR TURNBACK - DIVERSION TIME 105 MINUTES. PERFORMED TASK CARD NG-36WC-00001. REMOVED AND REPLACED KISS SEAL ON PRECOOLER CONTROL VALVE AS PRECAUTION IAW B737-800 AMM 36-12-02-000-801/400-801 OPS TEST GOOD. NO LEAKS NOTED. REMOVED AND REPLACED #2 ENG (450F) THERMOSTAT REF AMM 36-11-05 OPS/LEAK CK PASS REMOVED AND REPLACED #2 ENG PRECOOLER CONTROL VALVE SENSOR REF AMM 36-12-03 OPS/LEAK CK PASS. COMPLETED #2 ENG BLEED AIR SYS HEALTH CHECK REF T/C NG-36WC-00001. ENG BLEED AIR CROSSOVER OPS TEST GOOD. DUCT PRESSURE IS 42 PSI LEFT & RIGHT.
CONT CAB ZONE TEMP LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. FOUND PZTC2 FLT DECK TRIM VALVE FAULT REF B737-800 FIM 21-62 TASK 832 FAULT CLEARED ON VERIFY. REPLACED FLIGHT DECK SENSOR FILTER WITH NEW AND CLEANED SENSOR OP CK GOOD.
UPON #2 ENGINE SHUTDOWN FMC DISAGREE APPEARED ON BOTH MFD'S. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 835 NO DEFECT. COULD NOT DUPLICATE OK FOR SERVICE.
ON DESCENT WITH RECALL CHECK RIGHT PACK LIGHT CAME ON WENT OUT WITH MASTER CAUTION PUSH TO RESET. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-53 TASK 821 #2 PZTC SHOWED THIS PACK TCV FAULT CLEARED ON RESET.
AUTOTHROTTLE WILL NOT STAY ENGAGED. GROUNDED - YES. ACCOMPLISHED B737-800 FIM TASK 22-31-00-810-801 AUTOTHROTTLE BITE TEST. NO FAULTS NOTED. OK FOR CONTINUED SERVICE.
CONT CAB ZONE TEMP LIGHT ILLUMINATED, EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PACK ZONE TEMP CONTROLLER #2 BITE PER B737-800 FIM 21-62 TASK 801. LOGGED "FLT DECK TRIM VALVE", FAULT CLEARED. OPERATED PACKS, NO FAULTS.
WHILE PREFLIGHTING FMC, "SINGLE FMC OPERATIONS" APPEARED ON MCDU SCRATCHPAD. GROUNDED - YES. RAN QRH AND PULLED AND RESET FMCS CMPTR 1 AND 2 CIRCUIT BREAKERS PER THE PROCEDURE. NORMAL FMC OPERATIONS WAS RESTORED.
#1 HF TRANSMIT FUNCTION INOP. GROUNDED - YES. REMOVED AND REPLACED #1 HF COUPLER REF B737-800 AMM 23-11-61 OP'S CHECK OK #1 HF TRANSMITS AND RECEIVES NORMALLY GROUND VERIFICATION SUCCESSFUL.
DUAL FMC FAILURE. OCCURRED AS WE WERE COMPLETING THE QRH PROCEDURE FOR A RIGHT FMC FAILURE. HAD OCCURRED FIRST. THE RIGHT FMC FAILURE HAD SELF CORRECTED AND REOCCURRED MULTIPLE TIMES BEFORE WE GOT TO THE STEP OF PUTTING THE FMC SOURCE SWITCH TO BOTH ON 1. AFTER ALMOST A MINUTE IN THAT POSITION WITH NO RECOVERY,BOTH FMC'S FAILED. RETURNED FMC SOURCE SWITCH TO BOTH. AFTER ABOUT A MINUTE. BOTH FMC'S SELF RECOVERED AND OPERATED NORMALLY THEREAFTER. CPDLC HAD LOGGED OFF. GROUNDED - YES. PERFORMED BOTH FMC BITE PROCEDURE REF B737-800 FIM 34-61-801 TEST PASSED NO FAULT NOTED SEAMC WILL NOTIFIED.
FOS' RADAR DISPLAY DOES NOT DISPLAY CORRECTLY IN AUTO / WXTX OR WX. RADAR PAINTS AS IF IT IS IN MANUAL TILT AT -2 -3 DEGREES DOWN AND APPEARS TO BE GROUND MAPPING. WHEN TAKEN OUT OF AUTO DISPLAYS MATCH ON CA+FO ND. GROUNDED - YES. PERFORMED B737-800 FIM 34-43 TASK 801 WXR BITE SHOWS NO FAULTS. PERFORMED WXR SYSTEM OPS TEST REF B737-800 AMM 34-43-00-710-802-001. ALL TEST PASS NO HISTORY IN TRAX LAST 90 DAYS.
RIGHT FMC FAILURE. RAN CHECKLIST AND RESTORED RIGHT FMC'S THEN DUAL FMC FAILURE FOR ABOUT 3 MINUTES. BOTH FMC RETURNED BACK TO NORMAL. GROUNDED - YES. PERFORMED FMC 1 AND 2 SYSTEM TEST PER B737-800 FIM 34-61 TASK 836. OPS CHECK NORMAL.
WHILE ACCOMPLISHING T/C 78222000, SPOILER 9 POSITION SENSOR FAULT DURING BITE LIBRARY TEST 60.31. GROUNDED - YES. PERFORMED SPOILER 9 POSITION SENSOR ADJ REF B737-800 AMM 22-11-27-820-801. ALL TESTS PASS. BITE LIBRARY TEST 60.31 PASSES. T/C 78222000 COMPLETE.
WHILE ACCOMP TC SBCFM56-7B-72-0986-1 ON #1 ENG ESN 896974 FOUND STAGE 3 VSV J HOOK AFT SIDE HAS WEAR CONTACT WITH DAMAGE APPROX ONE SEGMENT IN LENGTH, WITH VSV SEGMENT (INNER) RETAINER PINS WORN/WORKING, PICTURES PROVIDED TO TECH SVC (POWERPLANT) & POWERPLANT ENGINEERING. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE REF T/C #78471000. TRANSFER DEFECT TO SHOP W/O # 1876854.
UNABLE TO COMPLETE TC 782223000 FLIGHT MANAGEMENT SYSTEM AND NAVIGATION FUNCTION CHECK, DUE TO FAILURE OF DFCS BITE LIBRARY NUMBER 60.31 AUTO PILOT B AILERON SENSOR 2 FAULT MSG 22-11146 (J18-K13) AND (J1B-H13) AND MSG 22-11340 R AILERON SENSOR EXC INV. GROUNDED - YES. REMOVED AND REPLACED AILERON POS SENSOR. FAILS LRU REPLACEMENT TEST. FOUND R/H AILERON IS OUT OF RIG, CONTROL SURFACE IS TOO LOW REF B737-800 AMM 27-11-00-820-805 STEP 6.F.(1)(R). ADJUSTED R/H AILERON WING CABLES ABSA & ABSB REF AMM 27-11-00-820-801. AILERON SENSOR TEST PASSED REF AMM 22-11-29. ACCOMPLISHED ROLL POS SENSOR TEST REF AMM 22-11-29, TEST PASSED. LAND VERIFY TEST PASSED. AUTOPILOT B OPS TEST PASSED REF AMM 22-11-00.
EMERGENCY LIGHTS COMMON TO POWER SUPPLY M1673 INOP. GROUNDED - YES. REMOVED & REPLACED POWER SUPPLY IAW B737-800 AMM 33-51-06. OPS CHECK GOOD.
FUSELAGE SKIN CORRODED AROUND WASTE VACUUM EXHAUST VENT. GROUNDED - YES. REMOVED CORROSION FROM THE FUSELAGE SKIN AT STA 917, BETWEEN STR-21L AND STR-22L, ORIGINAL THICKNESS 0.125", REMOVED 0.023", REMAINING THICKNESS 0.102" AREA FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-01-1A-1. REMOVED THE BLENDING SKIN, FABRICATED REPAIR DOUBLER, TRIPLER, AND FILLERAND INSTALED REPAIR AT STA 911 TO STA924, STR-21L TO STR-22L IAW B737-800SRM 53-70-01-2R-3 REPAIR 3. THIS IS A CATEGORY "B" REPAIR WITH AN INSPECTION THRESHOLD OF 50,000 FLIGHT CYCLES AFTER AIRPLANE DELIVERY IAW B737-800 SRM 53-70-01-2R-3 REPAIRS TABLE 202.
AUTO THROTTLE WILL NOT ARM. GROUNDED - YES. FOUND A/T DC 1 DC/B POPPED, RESET A/T DC 1 C/B REF 20-60-01, NO FAULTS NOTED AT THIS TIME. PERFORMED B737-800 FIM 22-31 TASK 801, NO FAULTS NOTED AT THIS TIME.
#1 AFT FUEL PUMP DOES NOT ILLUMINATE TO LOW PRESSURE WHEN SELECTED TO OFF POSITION VERIFIED ANNUNCIATOR DOES PRESS TO TEST OK ONLY OCCURRED IN FLIGHT UPON SHUTDOWN ANNUNCIATOR APPEARS TO FUNCTION NORMALLY. GROUNDED - YES. REMOVED AND REPLACED #1 AFT FUEL PUMP PRESSURE SWITCH IAW B737-800 AMM 28-42-11 OPS AND LEAK CHECK GOOD.
SATCOM LOCKUP GROUNDED - YES. ACCOMPLISHED RESET PROCEDURE PER QRH, FIXED LOCK UP.
DUAL FMC FAILURE DURING CRUISE (VTK FLAGS ON BOTH NDS, CWR, A/T LIM ANNUNC). BOTH FMC'S RESET. GROUNDED - YES. PERFORMED FMC BITE PROCEDURE PER B737-800 FIM 34-61 TASK 801 FOUND FMC-L-PGM FAULT, PERFORMED FIM 34-61 TASK 807 FOUND THAT THERE WAS AN INTERMITTEN FAULT, A/C OKAY FOR SERVICE.
FMC DISAGREE ON THE GROUND. GROUNDED - YES. RESET PER QRH SUCCESSFUL.
APU FAULT LIGHT. GROUNDED - YES. CDU SHOWS FAULT 49-15004 INLET DOOR SHUTDOWN 3 OCCURENCES. B737-800 FIM 49-10 TASK 806. INLET DOOR ACTUATOR TAKES LONGER THAN 30 SECONDS TO CYCLE. REPLACED APU INLET DOOR ACTUATOR IAW B737-800 AMM 49-15-31 ASSOCIATED OPS CHECKS PASS AMM 49-15-00 AND FIM 49-10 TASK 806 COMPLETED.
ALT WINDOW MCP LOCKED UP AT 27100. GROUNDED-YES. REMOVED AND REPLACED MCDP, IAW B737-800 AMM 22-11-34 REV 73. PERFORMED MCP INSTALLATION TEST, IAW AMM TASK 22-11-34-740-801 REV 73, TEST SATISFACTORY.
UNSUCCESSFUL A3 PRACTICE APPROACH UPON PRESSING 2ND AP GOT NO AIII. TRIED TO MANUALLY ENGAGE, BUT STILL DID NOT WORK AND HAD TO MANUALLY LAND. GROUNDED-YES. DFCS FAULT REVIEW LAST LEG FAULTED 22-11085 CHANNEL "A". LRU REPLACEMENT TEST FOR VOR PASSES. ACCOMPLISHED LAND VERIFY TEST. TEST PASSES, REF B737-800 FIM 22-11 TASK 899. HGS RECORDED NO HC OR FC FAULTS. ACCOMPLISHED HGS SYSTEM TEST. ALL TESTS PASS, REF FIM 34-36 TASK 899.
NR 2 FMC FAIL WITH "MAP" FLAG AND "SINGLE FMC OPERATION" IN SCRATCHPAD. GROUNDED-YES. PERFORMED B737-800 FIM 34-61 TASK 801, BOTH FMC'S OPERATIONS NORMAL. SINGLE FMC MESSAGE AND MAP FLAG BOTH EXTINGUISHED. ETOPS SIGNIFICANT SYSTEM-GROUND VERIFICATION OPERATIONS NORMAL.
ALITUDE PRESELECT ON MCP INTERMITTENT. GROUNDED-YES. NO LOGGED FAULTS FCC 1 & 2. REBOOTED MCP-SYSTEM TESTS GOOD, REF B737-800 AMM 22-00-01-730-801.
APU DET INOPERABLE LIGHT ILLUMINATED MOMENTARILY IN FLIGHT. GROUNDED-YES. ACCOMPLISHED B737-800 FIM 26-10 TASK 802, NO FAULTS LOGGED. REPLACED M1925, REF B737-800 AMM 26-15-01-400-801. OPERATIONS NORMAL, REF B737-800 AMM 26-15-00-710-801. AIRCRAFT RETURNED TO NORMAL CONFIGURATION.
PACK LIGHT ILLUM DURING RECALL. RESETS W/ MASTER CAUTION RESET. GROUNDED-YES. RELEASED PER MEL 21-32B. RT PACK PRIM CONTROLLER AUTHORIZED BY SEAMC RON. PERFORMED ZONE TEMP CONTROL BITE TEST, NR 2 ZTC FAULTED THE RT RAM AIR DOOR ACTUATOR. A/C HAS HISTORY ON 21 SEP. REPLACED RT RAM AIR DOOR ACTUATOR WITH NEW. FAULT CLEARED AND OPERATIONS CHK GOOD, REF B737-800 AMM 21-61-00 AND 21-51-21.
RT PACK LITE ILLUMINATES ON RECALL LIGHT GOES OUT WITH MASTER CAUTION RESET. GROUNDED-YES. BITE CK SHOWS NR 2 CONTROLLER RAM ACT ON BIT + PREV FLT, BUT VERIFIES GO. ACCOMPLISHED THE PACK/ZONE TEMPERATURE CONTROLLER BITE TEST, REF B737-800 AMM 21-51-00-700-803. UPON VERIFICATION PRESSED THE RESET BUTTON. THE FAULT CLEARED AND DID NOT RETURN.
FO'S MCDU RIGHT SIDE OF SCREEN IS PIXELATED. GROUNDED - YES. REPLACED MCDU, REF B737-800 AMM 34-61-01.
PREVIOUS REPORT OF FILIFORM DEBRIS FOUND IN NR 1 ENGINE AFT SUMP MCD SCAVENGE SCREEN. GROUNDED - YES. REMOVED TURBINE REAR FRAME OIL INLET COVER, REF B737-800 AMM TASK 72-56-00-000-802-F00. COMPLETED STEPS 1,2 AND 3 OF TSR. MEASURED LPT SHAFT ASSY SEAL TOOTH OUTER DIA AT 2.077 WITHIN LIMITS, REF AMM 72-55-00-200-801-F00. FOUND DAMAGED FLANGE ASSEMBLY BOLT HOLES CRACKED AND BROKEN OFF. REMOVED AND REPLACED FLANGE ASSEMBLY AND OIL INLET COVER, REF B737-800 AMM 72-56-00-400-801-F00.
EMERGENCY EXIT LIGHT AT 25ABC IS INOPERABLE. GROUNDED - YES. RELAMPED EMERGENCY EXIT LIGHT, NO HELP. NO POWER AND GROUND AT LIGHT. RESECURED LOOSE PLUG D11344 AT 25ABC OVERHEAD BIN.
ON TAXI L2 WINDOW STARTED TO FORM BUBBLES/MELT/DELAM NO MASTER CAUTION OR OVERHEAT LIGHT. GROUNDED - YES. WHCU BITE SHOWS NO CURRENT FAULTS FOUND LEFT SIDE WINDOW. WHCU ON WRONG TAP. ADJUSTED TO PROPER TAP FOR NEW WINDOW TO BE INSTALLED, REF WDM 30-41-12. REMOVED AND REPLACED L2 WINDOW ASSY REF B737-800 AMM 56-12-11 OPS CHECK GOOD.
RT SIDE WINDOW HEAT CAUTION. DID NOT CLEAR AFTER RUNNING CHECKLIST. GROUNDED - YES. FOUND C/B C228 OPEN. GVI ACCESSIBLE WIRING, NO FAULTS FOUND, REF B737-800 WDM 30-41-11. REF B737-800 AMM 20-60-01, RESET C/B. OPERATED WINDOW HEAT. C/B REMAINS SET, WINDOW HEAT OPS NORMAL. HAS NO OTHER RECENT HISTORY.
L2 DOOR EXTERIOR EMERGENCY LIGHT INOP. GROUNDED - YES. RELAMPED L2 DOOR EXTERIOR LIGHT EMERGENCY LIGHT REF B737-800 AMM 33-51-04. OPS CHECK GOOD.
AFTER ENGINE START, ON MASTER RECALL CONT CAB ZONE TEMP LIGHT ILLUMINATES. EXTINGUISHES ON RESET. GROUNDED - YES. UNABLE TO DUPLICATE DEFECT - MASTER CAUTION RECALL SHOWS NO ZONE TEMP LIGHTS. BITE TEST OF PACK/ZONE TEMP CONTROLLERS NR 1 AND 2 SHOWS NO FAULTS AND VERIFY TEST PASSES ON BOTH WITH NO FAULTS. PERFORMED CABIN TEMPERATURE CONTROL AND INDICATION - OPERATIONAL TEST PER B737-800 AMM 21-61-00-700-807-002 - ALL TESTS PASS.
HF #1 SHOWS FAIL MESSAGE. GROUNDED - YES. CYCLED C/B'S - SYS RESTORED AND CKS NML REF B737-800 FIM 23-11 TASK 802. COMM & BITE CK GOOD. GND VERIFICATION SUCCESSFUL.
UPON SHUTDOWN, NOTICED ENGINE #2 ENG VALVE CLOSED LIGHT IS ILLUMINATED BRIGHT, NOT DIM. GROUNDED - YES. REF TSR 704433 FOR TROUBLESHOOTING. SUSPECT #2 ENGINE HMU. REMOVED AND REPLACED #2 ENG HMU PER T/C N8473000 & T/C N8473001 FAULT REMAIN ABNORMAL SHUT DOWN ADDITIONAL 20 SEC TO FULL SHUT DOWN. REPLACED P5-2 PANEL PRECAUTIONARY. ALL OPS NML. REF B737-800 AMM 28-22-43.REF B737-800 WDM 76-21-21 FOUND CB C1321 BUS TERMINAL NOT SECURE. REMOVED AND REPLACED C1321 ENG FUEL ENGINE 2 HPSOV CONT C/B REF WDM 76-21-21, #2 ENG SHUTDOWN IS NORMAL WITH FUEL CUTOFF AND FIRE HANDLE. ENG VALVE LIGHTS OPS NORMAL.
HF1 RADIO DISPLAYS FAIL MESSAGE. GROUNDED - YES. PERFORMED HF COMMUNICATION SYST BITE PROCEDURES B737-800 FIM TASK 23-11-00-810-801. FAIL MSG. EXTINGUISHED. NO FAULT NOTED.
CONT CABIN ZONE TEMP ON RECALL. LT GOES OUT ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED B737-800 AMM 21-61-00. PACK/ZONE TEMPERATURE CONTROLLER BITE TEST. GROUND VERIFICATION TEST PASSED. LIGHT NO LONGER DISPLAY BEFORE AND AFTER RECALL IS PRESSED. OPS CHECK GOOD. CLEARS MEL 21-21G.
HF RADIO #2 DISPLAYS FAIL. GROUNDED - YES. BITE TESTED #2 HF TRANSCEIVER REF B737-800 AMM 23-11-21. OPS CHECK GOOD. FAIL NO LONGER DISPLAYED ON RADIO TUNING PANELS.
AFTER SHUTDOWN ENG 2 NORMALLY, ENG VALVE CLOSED ANNUNCIATOR REMAINED BRIGHT. ACFT GROUNDED. REPLACED NR 2 HMU HPSOV SWITCH REF B737-800 AMM 73-21-09-000-801-F00 & 73-21-09-400-801-F00. OP'S CHECK GOOD REF PP TEST #12 & #13 REF AMM 71-00-00-800-811-F00.
AFTER SHUTTING DOWN ENGINE #2 NORMALLY, ENGINE VALVE CLOSED ANNUNCIATOR REMAINED BRIGHT. GROUNDED - YES. CYCLED #2 FUEL CUTOFF - #2 ENGINE VALVE CLOSED LIGHT WENT DIM. OPS CHECKS NORMAL.
#2 ENG VALVE CLOSED LIGHT REMAINS BRIGHT BLUE WITH ENGINE SHUT DOWN. GROUNDED - YES. FOUND START LEVER OUT OF DETENT. CYCLED LEVER LIGHT EXTINQUISHED. OPS CHECK OK ON ENGINE RUN REF TO B737-800 AMM 71-00-00. OK FOR SERVICE.
#2 ENGINE HAS HISTORY OF DELAYED SHUTDOWN WITH HPSOV LIGHT REMAINING BRIGHT. GROUNDED - YES. REMOVED AND REPLACED ENG START BRAKE ASSY REF B737-800 AMM 76-11-10. OPS NORMAL. IGNITION OPS NORMAL REF AMM 74-00-00.
WHILE SHUTTING DOWN ENGINE NR 2, START LEVER TO CUTOFF, THE ENGINE CONTINUED RUNNING. START LEVER WAS MOVED OUT OF CUTOFF, AND RETURNED, AND THE ENGINE SHUT DOWN. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 73-06 TASK 804. FOUND NR 2 ENG HMU HPSOV CANNON PLUG NOT FULLY SEATED. CLEANED AND REINSTALLED. NR 2 ENG FIRE HANDLE CYCLED AND RESET. RAN NR 2 ENG, TOW NORMAL STARTS AND SHUT DOWN. OPS CK OF NR 2 ENG HPSOV GOOD IAW 0 AMM 73-00-00.
L PACK CAUTION LIGHT ON RECALL DOES RESET. GROUNDED - YES. PERFORMED L/H PZTC BITE REF B737-800 AMM 21-51-00. FOUND TCV FAULT LIGHT ON BIT AND ALL PREV FLT. IN VERIFY L/H TCV IS VERY LOUD. REMOVED AND REPLACED L/H TEMP CONTROL VALVE REF B737-800 AMM 21-51-10. OPS AND LEAK CK GOOD. PZTC BITE CK GOOD-NO FAULTS. PERFORMED CABIN TEMP CONT AND INDICATION OPERATIONAL TEST REF AMM 21-61-00. TESTS GOOD-NO FAULTS. ETOPS SIGNIFICANT SSTEM GROUND VERIFICATION SUCCESSFUL.
UPON ETOPS EXTERIOR WALK FOUND R/H RAM DOOR FULL CLOSED. GROUNDED - YES. PERFORMED PACK ZONE TEMP CONTROL BITE PER B737-800 AMM 21-61-00-700-806-002. R/H RAM AIR DOOR ACTUATOR IS BAD. REMOVED RAM AIR DOOR ACTUATOR PER AMM 21-51-21-000-801. INSTALLED RAM AIR DOOR ACTUATOR PER AMM 21-51-21-400-801. INSTALLED / REMOVED 3 MIG 51A TAGS PERFORMED RAM AIR ACTUATOR TEST PER AMM SUBTASK 21-51-21-740-001 ACTUATOR TEST PASSED.
SATCOM LOCKUP AFTER POWER TRANSFER. GROUNDED - YES. QRH COMPLETED. RESTORED NORMAL OPERATIONS.
FO'S BLANKED AND RESET DEADING TOP OF CLIMB. THE SCREEN WAS BLANK, ALL ADVISORY LIGHTS, AND THE EXC LIGHT ILLUMINATED. NO VTK FLAGS WERE VISIBLE ON EITHER X10 AND THE MCDU REBOOTED ITSELF IN 2-3 MINUTES. SUBSEQUENTLY IT FUNCTIONED THE DURATION OF THE FLIGHT. GROUNDED - YES. ACCOMPLISHED FIM TASK 34-61-804 SYSTEM GROUND VERIFICATION NORMAL.
#1 ENG S/N 896974 HAS LONG TIME FAULT 73-20171 "INTERNAL EEC FAULT". DEFERRED PER T/C 78273000. GROUNDED - YES. REMOVED AND REPLACED EEC ON #1 ENGINE PER AMM 73-21-60/401, OPERATIONAL TEST PASSED. NO FAULTS FOUND GROUND VERIFICATION SUCCESSFUL.
RIGHT SIDE ENG VALVE CLOSED LIGHT ILLUMINATED BRIGHT BLUE DURING PREFLIGHT BEFORE START. GROUNDED - YES. PERFORMED FIM 73-06 TASK 804, DISCONNECTED CONNECTOR DP1203, CONFIRMED PROPER OPERATION OF FIRE CONTROL PANEL SWITCH S9 AND PROPER OPERATION OF THE #2 ENGINE START LEVER SWITCH S1029 REF WDM 76-21-21. REQUIRES #2 ENGINE HMU CHANGE. REPLACED #2 ENG. HMU. IDLE LEAK CHECK, EEC BITE CHECK AND ACTUATORS TESTED OK. REF T/C N8473000, N8473001 THRU STEP J.(5). FOUND D46126P SHORTED AT PINS 5,6,7 WHEN CONNECTED. REMOVED AND REPLACED CONNECTOR D46126P AND VERIFIED CONNECTOR D46126J INSULATOR AND WIRING INTEGRITY REF WDM 76-21-21 AND SWPM 20-61-11. PINS 5,6,7 OF D46126P NO LONGER SHORTED. ALL OPERATIONAL CHECKS PASS FOR CONNECTOR D46126. PERFORMED MULTIPLE SUCCESSFUL ENGINE STARTS AND SHUTDOWNS OF THE #2 ENGINE. COMPLETED SUCCESSFUL REPAIR CONFIRMATION OF FIM 73-06 TASK 804 FOR THE #2 ENGINE. #2 ENG VALVE CLOSED LIGHT OPERATING AS REQUIRED. ETOPS GROUND VERIFICATION SUCCESSFUL.
APU CT5ATP TEMPERATURE CONTINUES TO BE ABOVE THE ESTABLISHED APU ON DEMAND THRESHOLD. REMOVE APU FOR USE ON NONE ETOPS TAIL. GROUNDED - YES. REMOVED AND REPLACED APU REF AMM 49-11-00-400-803 OPS AND LEAK CHECK GOOD.
CREW REPORT VTK FLAG ON CAPT ND AFTER LANDING WAS ON FOR 10 SECONDS THEN WENT AWAY. GROUNDED - YES. FMC 1 LOGGED ONE GROUND FAULT, PGM FAULT. COMPLETED FIM 34-61 TASK 807. HARDWARE/ SOFTWARE RESET. NO FAULTS. OK FOR SERVICE.
NR 2 MAIN TANK FUEL QUANTITY INDICATION SYSTEM FAILS SYSTEM TEST IAW AMM TASK 28-41-00-730-801. GROUNDED - YES. PERFORMED TANK UNIT AND COMP TEST REF B737-800 AMM TASK 28-41-21-710-801. COMPENSATOR FAILS AT 60.58 PICO FARADS. ALL TANK UNITS READ GOOD. REMOVED AND REPLACED COMP UNIT REF AMM TASK 28-41-21-000/400-801 COMP UNIT TEST NOW GOOD.
RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. TURNED OFF AND BACK ON AFTER COOLING PER B737 QRH STAYED EXTINGUISHED.
AFT CARGO COMPARTMENT FS 867 LBL 18 BRACKET 149A8109 - 114 IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED BRACKET IAW SRM 51 40 02 0G 0 7D.
AFT CARGO LT TRANSITION PANEL HAS CORR AT STA 724-787. GROUNDED - YES. REPAIRED LT TRANSITION PANEL (ZEE CHANNEL) IAW SRM 53 00 53 2R 6 W 1.0 O .063 R 0 L 1.0 D .063.
AFT CARGO R/S BAFFLE AT STA 747-767 HAS CORR ON BOTTOM SIDE. GROUNDED - YES. REMOVED AND REPLACED BAFFLE (INTERCOSTAL ZEE) IAW SRM 51 40 05 0G 0 AND SRM 51 40 02 0G 0 W .5 O .032 R .020 L 1.2 D .012.
AFT CARGO R/S SHEILD AT STA 767-794 HAS CORR ON BOTTOM SIDE. GROUNDED - YES. REMOVED CORR AND CHECKED LIMITS FOUND TO BE OUT OF LIMITS IAW SRM 53 60 15 1A 1 REMOVED AND REPLACED SHIELD IAW SRM 51 40 02 0G 0 W .5 O .050 R .040 L 1.5 D .010.
AFT CARGO RT TRANSITION PANEL HAS CORR AT STA 727-767. GROUNDED - YES. REPAIRED RT TRANSITION PANEL IAW SRM 53 00 53 2R 6 W .8 O .040 R 0 L 1.2 D .040.
INTERCOSTAL AT STA 312-328 LBL 33 IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED 1EA. INTERCOSTAL AT STA 312-328 LBL 33 IAW SRM 51 40 02 0G 0 PG 6 STEP D.
LT HORIZ LOWR SKIN CRACKED AT STA 101.9, 37 IN. AFT OF FRONT SPAR. GROUNDED - YES. REPAIRED CRACK ON LT HORIZ.LOWER SKIN AT STA 101.9 37" AFT OF FRONT SPAR IAW SRM 55 10 01 2R 11, PG 3 STEP 4 THIS IS A CAT. B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLT. CYCLES WITH AN INSPECTION INTERVAL OF 9,000 FLT. CYCLES, A/C TOTAL FLT. CYCLES AT TIME OF REPAIR IS 11,695 PER SRM 55 10 01 2R 11, PG 7 STEP 5.
LT HORIZ LWR SKIN CRACKED AT STA 100 AT REAR SPAR. GROUNDED - YES. REPAIRED CRACK ON LT HORIZ. LOWER SKIN AT STA 100 AT REAR SPAR IAW SRM 55 10 01 2R 11, PG 3 STEP 4 THIS IS A CAT. B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLT. CYCLES WITH AN INSPECTION INTERVAL OF 9,000 FLT. CYCLES, A/C TOTAL FLT. CYCLES AT TIME OF REPAIR IS 11,695 PER SRM 55 10 01 2R 11, PG 7 STEP 5.
LT HORIZ LWR SKIN CRACKED AT STA 129.5, 34 IN. AFT OF FRONT SPAR. GROUNDED - YES. REPAIRED CRACK ON LT HORIZ.LOWER SKIN AT STA 129.5 34" AFT OF FRONT SPAR IAW SRM 55 10 01 2R 11, PG 3 STEP 4 THIS IS A CAT. B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLT. CYCLES WITH AN INSPECTION INTERVAL OF 9,000 FLT. CYCLES, A/C TOTAL FLT. CYCLES AT TIME OF REPAIR IS 11,695 PER SRM 55 10 01 2R 11, PG 7 STEP 5.
RT HORIZ. LWR SKIN HAS A CRACK AT STA 136, 32 IN. AFT OF FRONT SPAR. GROUNDED - YES. REPAIRED CRACK ON RT HORIZ.LOWER SKIN AT STA 136. 32" AFT OF FRONT SPAR IAW SRM 55 10 01 2R 11, PG 3 STEP 4 THIS IS A CAT. B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLT. CYCLES WITH AN INSPECTION INTERVAL OF 9,000 FLT. CYCLES, A/C TOTAL FLT. CYCLES AT TIME OF REPAIR IS 11,695 PER SRM 55 10 01 2R 11, PG 7 STEP 5.
RT HORIZ. LWR SKIN HAS A CRACK AT STA 147, 9 IN. AFT OF FRONT SPAR. GROUNDED - YES. REPAIRED CRACK ON RT HORIZ. LOWER SKIN AT STA 147 9" AFT OF FRONT SPARIAW SRM 55 10 01 2R 11, PG 3 STEP 4 THIS IS A CAT. B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLT. CYCLES WITH AN INSPECTION INTERVAL OF 9,000 FLT. CYCLES, A/C TOTAL FLT. CYCLES AT TIME OF REPAIR IS 11,695 PER SRM 55 10 01 2R 11, PG 7 STEP 5.
RT HORIZ LWR SKIN HAS A CRACK AT STA 167, 31 IN AFT OF FRONT SPAR. GROUNDED - YES. REPAIRED CRACK ON RT HORIZ. LOWER SKIN AT STA 167.31" AFT OF FRONT SPARIAW SRM 55 10 01 2R 11, PG 3 STEP 4 THIS IS A CAT. B REPAIR WITH AN INSPECTION THRESHOLD OF 56,000 TOTAL FLT. CYCLES WITH AN INSPECTION INTERVAL OF 9,000 FLT. CYCLES, A/C TOTAL FLT. CYCLES AT TIME OF REPAIR IS 11,695 PER SRM 55 10 01 2R 11, PG 7 STEP 5.
ON ENG. #2 LONG TIME FAULT 73-31162 " THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE" DEFERRED PER T/C 78273000. GROUNDED - YES. REMOVED AND REPLACED #2 ENG HMU IAW ASA T/C # N8473000 AND T/C # N8473001.
AIR TEMPERATURE SOURCE SELECTOR KNOB WON'T PROPERLY SEAT AT VARIOUS ZONE SELECTIONS. GROUNDED - YES. TROUBLESHOT TO DEFECTIVE TEMP SOURCE SELECT SWITCH (S-1) P5-17 CABIN TEMP PANEL. REMOVED & REPLACED P5-17 TEMP CONTROL MODULE REF B737-800 AMM 21-61-15, GROUND FUNCTIONAL CK NML REF AMM 21-61-00-700-807-002 AND AMM 21-61-00-700-806-002.
#1 HF WILL NOT TRANSMIT. GROUNDED - YES. RESET C/B PER B737-800 AMM 20-60-01. PERFORMED HF COMMUNICATION SYSTEM BITE PROCEDURE PER B737-800 FIM 23-11-TASK 801, BITE TEST GOOD NO FAULTS, OPS CHECK HF TRANSCEIVER OPS TEST GOOD OK FOR SERVICE, GROUND VERIFICATION, TEST GOOD.
NUMBER 1 HF RADIO HAS NO SOUND OR SIDETONE. GROUNDED - YES. WENT TO BITE NR 1 HF TRANSCEIVER, FOUND NR 1 HF TRANSCEIVER INOP. R & R NR 1 HF TRANSCEIVER, REF AMM 23-11-21-000-801/400-801. PERFORMED NR 2 HF BITE TEST AND OPS CHECK. NR 1 HF OPS NORMAL.
#2 HF RADIO FAILED ENROUTE. GROUNDED - YES. PERFORMED HF2 BITE WITH NO FAULTS FOUND CW B737-800 FIM 23-11 TASK 806 AND WAS UNABLE TO ESTABLISH 2 WAY COMMUNICATION. PLACED HF2 ON MEL 23-11A. REMOVED AND REPLACED HF#2 COUPLER IAW B737 800 AMM 23 11 61. ACCOMPLISHED HF SYSTEM TEST AMM TASK 23-11-00-730-801. OPS CK GOOD. THIS CLEARS MEL 23-11A.
PRIOR TO PUSH BACK F/O'S NAV DISPLAY MAP LIGHT ILLUMINATED F/O LOST ROUTE, CAPTAIN'S OK. GROUNDED - YES. ACCOMPLISHED RESET OF FMC SYS. NO FAULTS EVIDENT. REF B737-800 FIM TASK 34-61.
CONTROL CAB SINGLE CHANNEL ZONE TEMP FAILURE LIGHT ILLUMINATED ON RECALL AND EXTINGUISHED ON RESET. GROUNDED - YES. NR 2 PZTC BITE FREV FLT SHOWS FLT DECK TRIM VALVE FAULT, RESET FAULT. VERIFIED BOTH PACKS OPS CHECKED NORMAL ON GND WITHOUT FAULTS. NR 1 AND NR 2 PZTC BITE VERIFIED GOOD WITHOUT FAULTS.
FOLLOW-UP TO HISTORY OF NR 2 ENGINE SLOW TO SHUTDOWN. GROUNDED - YES. REMOVED, REPLACED, AND TESTED M1825 NR 2 ENGINE START BRAKE ASSEMBLY PER AMM 76-11-10. OPS NORMAL. PERFORMED ENGINE SPAR VALVE ELECTRICAL CONTROL AND INDICATION TEST FOR NR 2 ENGINE PER AMM 28-22-00-710-801, EEC DISCRETES TEST PER AMM 73-21-00-700-809-F00, EEC TEST PER AMM 73-21-00-700-804-F00, AND IGNITION SYSTEM AUDIBLE TEST PER AMM 74-00-00-750-801 - ALL TESTS PASS. PERFORMED POWERPLANT TEST 13 - ENGINE RUN - EEC BITE CHECK PER AMM 71-00-00-700-808-F00 - ENGINE STARTS AND STOPS NORMALLY WITH NO EEC FAULTS.
ENG NR 2 LONG TIME FAULT MSG# 73-31162 THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE DEFERRED PER TASK CARD. GROUNDED - YES. ACCOMPLISHED FIM 73-25 TASK 805, NO FAULTS NOTED. PER FIM, REPLACED NR 2 EEC REF AMM 73-21-60. THIS CLEARS PLT.
UPON NR 2 ENGINE SHUTDOWN WHEN START LEVER WAS PLACED IN CUTOFF, THE NR 2 ENGINE RAN FOR 10-12 SEC. BEFORE SLOWLY ROLLING BACK TO OFF. THE NR 2 ENG VALVE CLOSED FUEL VALVE CONTINUED TO BE ILLUMINATED BRIGHT BLUE AND STAYED ILLUMINATED BRIGHT BLUE. GROUNDED - YES. REMOVED AND REPLACED ENGINE/APU FIRE DETECTION CONTROL MODULE, ALL TESTS EXCEPT TWO PASSED. THE NR 2 ENGINE STOPPED PROPERLY USING START LEVER AND NR 2 FIRE HANDLE. ALL MAINTENANCE TESTS COMPLETED PER AMM 26-00-01-400-801 AND AMM 26-21-730-801.
DURING NR 1 ENGINE START WITH START SWITCH TO "GRD" POSITION THE N2 INCREASED TO APPROXMATELY 4% THEN DECREASED TO 0. GROUNDED - YES. REMOVED AND REPLACED NR 1 ENGINE STARTER REFERENCE AMM 80-11-01 OPS AND LEAK CHECK GOOD.
NR 2 ENGINE DID NOT IMMEDIATELY SHUT DOWN WHEN IN CUTOFF, NR 2 ENGINE FUEL VALVE REMAINED BRIGHT. GROUNDED - YES. REMOVED AND REPLACED HMU (NR 2 ENGINE), LEAK AND OPS CHECK GOOD. ENG START/STOPS NORMALLY.
APU TREND DATA SHOWS CT5ATP TEMPERATURE IS AT OR ABOVE THE 605 DEGREE THRESHOLD. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 49-40 TASK 825 STEPS D1 THROUGH D6E. REMOVED AND REPLACED ALL FUEL NOZZLES REF B737-800 AMM 49-31-14. FOUND TOTAL PRESSURE SENSOR ORIFICE PARTIALLY BLOCKED. REMOVED AND REPLACED TOTAL PRESSURE SENSOR REF AMM 49-52-32. OPS CHECK GOOD. NO FUEL LEAKS NOTED. NO FAULTS MESSAGES OR MAINTENANCE MESSAGES ON APU BITE.
#1 ENGINE COWL VALVE INOP. GROUNDED - YES. FOUND ENGINE #1 ANTI-ICE ENGINE AND WING CONTROL BREAKER OPEN. REF B737-800 WDM 30-11-11, PIN 1 OF D1103P GND WTAI TEMP SOL VLV SHORTED TO GROUND. ISOLATED TO HARNESS MW0311. REMOVED AND REPLACED MW0311 HARNESS IAW B737-800 AMM 73-21-06. #1 ENGINE TAI VALVE OPS CKS NORMAL PER AMM 30-21-11. EEC TEST OPS CKS NORMAL PER AMM 73-21-00-700-804-F00. ACTUATORS TEST OPS CKS NORMAL PER AMM 71-00-00-700-807-F00. POST HARNESS (MW0311) INSTALL, BLEED AIR REGULATOR OPS CKS NORMAL PER AMM 73-21-06-400-801-F00. AVM SYS OPS CKS NORMAL PER AMM 77-31-00-710-801.
CABIN PRESSURIZATION CONTROLLER WENT BLANK DURING CRUISE FLIGHT. THE CONTROLLER REMAINED FUNCTIONAL AND CONTROLLED CABIN PRESSURE DURING THE REMAINDER OF FLIGHT. THE CONTROLLER REMAINED BLANK FOR THE REMAINING 04 HOURS OF THE FLIGHT AND IS STILL BLANK AFTER BLOCK IN AT THE GATE. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 21-31 TASK 803. GROUND VERIFICATION CHECK OK - DEFECT CLEARED.
WHILE ACCOMPLISHING T/C N8473001 HUM INSTALLATION, FOUND NR 2 ENGINE HEATER, SERVO FUEL EVIDENCE OF LEAK. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENGINE SERVO FUEL HEATER REF AMM 73-11-07.
NO EGT AFTER START LEVER RAISED TO IDLE ON ENGINE NUMBER 2. GROUNDED - YES. SWITCHED IGNITION TO LEFT, ATTEMPTED TO START NR 2 ENGINE THIS TIME THE EGT WENT TO ABOUT 600 AND ROLLED BACK WITH EGT LIGHT FLASHING AND ENGINE STARTED SPOOLING DOWN. CREW SAID N2 NEVER REACHED STARTER CUT OUTSPEED. CDU DOES NOT SHOW ANY FAULTS AT ALL AND NO FUEL RESIDUAL IN TAIL PIPE. REPLACED HMU PER T/C N8473001, STARTED ENGINE SEVERAL TIMES, ALL STARTS NORMAL.
WHILE ACCOMPLISHING T/C 78472010 FAN LUBE ENG NR 1 S/N 896974 FOUND CU-NI-IN COATING OUT OF LIMITS ON FAN BLADES NR 3 CV SIDE .56, NR 4 CV SIDE .57, NR 8 CV SIDE .6, NR 11 CV SIDE .65, NR 13 CV SIDE .81, & NR 18 CV SIDE .71. GROUNDED - YES. ON NR 1 ENG REMOVED AND REPLACED DAMAGE FAN BLADES 3, 4, 8, ,11, 13, & 18 AND THEIR OPPOSITE PAIRS. REF T/C 78472010.
WHILE ACCOMPLISHING T/C 78472010 ENG NR 1 S/N 896974. FOUND NR 12 FAN BLADE SPACER ELASTOMER DISBONED ON BOTH SIDE. GROUNDED - YES. REMOVED AND REPLACED ON NR 1 ENGINE FAN BLADE SPACER (12) REF T/C 78472010.
BLADE NR 17 ON NR 1 ENGINE HAVE LEADING EDGE TIP CURL. GROUNDED - YES. REMOVED AND REPLACED ON NR 1 ENG BLADE NR 17 AND IT'S OPPOSITE PAIR REF T/C 78472010.
WHILE ACCOMPLISHING T/C 78472010 ENG NR 1 S/N 896974 FOUND 2 EA PLATFORMS NR 14 & NR 19 ELASTOMER SEALS TORN ON BOTH SIDES. GROUNDED - YES. REMOVED AND REPLACED ON NR 1 ENG 2 PLATFORMS (NR 14 & NR 19). REF T/C 78472010.
PRESSURIZATION PANEL DISPLAY LIGHTS VERY DIM. GROUNDED - YES. CYCLED SYSTEM POWER. DISPLAYS RETURNED TO NORMAL #1 CONTROLLER LOGGED 016, SEL PANEL LRU FAIL. PRESSURIZATION CONTROLLER BITE CK NORMAL. REF B737-800 FIM 21-31 TASK 801.
ON THE AFTER START RECALL CHECK THE OVERHEAD ELEC LIGHT CAME ON, PERFORMED THE QRH AND NO TAKE OFF ALLOWED. GROUNDED - YES. ACCOMPLISHED P5-13 ELEC LIGHT PNL BITE PER AMM 24-31 TASK 801 - LOGGED "SPCU" FAULT. NO C/B'S OPEN AND FAULT WILL NOT RESET. REPLACED SPCU, OPS NML. REF AMM TASK 24-34-11-400-801.
PER T/C 78472010 NR 2 ENGINE INLET SPINNER FRONT CONE MORE THAN 50 PER CENT PAINT MISSING. GROUNDED - YES. INSTALLED NEW INLET SPINNER FRONT CONE ON ENGINE NR 2 PER T/C 78472010.
WHILE PERFORMING TASK CARD 78472040 FOUND FUEL LEAK ON # 2 ENGINE WHILE DRY MOTORING. GROUNDED - YES. REMOVED & REPLACED #2 ENG R/H VSV, REF B737-800 AMM 75-31-01. LEAK/OPS TEST GOOD.
PRESSURIZATION CONTROL PANEL AUTO DISPLAY BLANK. GROUNDED - YES. RESET A/C POWER ACCOMPLISHED FIM 21-31 TASK 803 NO DEFECTS NOTED. PERFORMED (DCPC) BITE CHECK, SYSTEM OK NO FAULTS GENERATED REF FIM 21-31 TASK 801.
STATIC OIL LEAK FOUND AT NR 1 ENG IDG PAD DRAIN. GROUNDED - YES. REMOVED AND REPLACED NR 1 IDG IAW AMM 24-11-11. OPS CHECKS GOOD. LEAK CHECKS GOOD. INSTALLED BULBS IN ASSOCIATED GENERATOR DRIVE AND GEN OFF BUS LIGHTS. OPS CHECK GOOD. 3 MIG-51A INSTALLED AND REMOVED. GROUND VERIFICATION COMPLIED WITH.
R1 SLIDE LIGHT INOP. GROUNDED - YES. RELAMPED R1 SLIDE LIGHT REF AMM 33-51-04, OPS TEST GOOD.
AFTER ENG START ELEC LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED FIM 24-31 TASK 801, CLEARED FAULT AFTER BITE CHECK. NO FAULTS. AIRCRAFT IS OK FOR SERVICE. PREVIOUS FAULT WAS SPCU INOP - FAULT CLEARED.
ON ROLLOUT, NR 1 MFD DISPLAYED "VTK" AND "FMC" DISAPPEARED FROM BOTH MCDU MENU PAGES. SELF RECOVERED AFTER APPROX 30 SECONDS BUT ALL DATA WAS GONE. ACFT GROUNDED. ACCOMPLISHED FMC LANDING/TAXI VTK - MAP NUISANCE ERROR IAW AMM 34-61-00-860-801, OPS NORMAL, NO HISTORY.
WHILE ACCOMPLISHING T/C 78472000 NR 1 ENGINE FOUND FRONT SPINNER CONE MISSING 50% OF BLACK SULFURIC ANODIZING COATING. GROUNDED - YES. REMOVED AND REPLACED NR 1 ENGINE FRONT SPINNER PER AMM 72-21-01. NO DEFECTS NOTED AT THIS TIME.
UPON ATTEMPT TO START ENGINE 2, NO N2 ROTATION WAS NOTED. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENG STARTER PER AMM 80-11-01. GND VERIFICATION CHECK GOOD PER AMM 71-00-00-700-809-F00 AND 71-00-00-700-801-F00.
AFTER ENGINE START, LEFT DUCT PRESSURE READ 7 PSI. GROUNDED - YES. PERFORMED PNEUMATIC HEALTH CHECK ON NR 1 ENGINE PER AMM 36-11-00-710-802 AND FOUND "PRSOV" STUCK BETWEEN OPEN AND CLOSED POSITION. REMOVED AND REPLACED PRSOV PER AMM 36-11-04-400-801 AND BLEED AIR REGULATOR PER AMM 36-11-03 PERFORMED ENGINE BLEED AIR CROSSOVER CHECK PER AMM 36-11-710-801 ALL INDICATED DUCT PRESSURES IN LIMITS.
LEFT CENTER FUEL PUMP LOW PRESSURE LIGHT REMAINED ILLUMINATED WITH THE SWITCH ON AND FUEL IN TANK. ACFT GROUNDED. ACCOMPLISHED AN OPS TEST, OPS TESTED NORMAL NO FAULTS IAW AMM 28-22-41-710-801. ACCOMPLISHED A BOOST PUMP AUTO SHUTOFF FUNCTIONAL TEST AND LT GFI RELAY OPS CHECK, BOTH OPS NORMAL IAW AMM 28-22-00-720-805, AND AMM 28-22-41-720-802. BECAUSE NO HARD FAULTS WERE FOUND THE LT CENTER FUEL PUMP MOTOR IMPELLER WAS REPLACED, OPS CHECKED GOOD IAW AMM 28-22-41-000-801, AMM 28-22-41-400-801, AND AMM 28-22-41-710-801. FUEL LOW PRESSURE LIGHT OUT WITH PUMP ON.
DURING ACCOMPLISHMENT OF T/C 78233001, BATTERY PACKS M1870 AND M1872 FAILED A CAPACITY CHECK. ACFT GROUNDED. REPLACED THE BATTERY PACKS IAW AMM 33-51-06-960-805, OPS CHECKED GOOD.
AT THE TOP OF CLIMB, THE LEFT CENTER FUEL PRESSURE LOW LIGHT ILLUMINATED. FOLLOWED QRH. CROSSFEED OPENED AND CONTINUED TO DESTINATION. ACFT GROUNDED. REMOVED AND REPLACED THE LT CENTER PUMP MOTOR IMPELLER IAW AMM 28-22-41. OPS CHECKED GOOD. NO LEAKS NOTED. RAN THE CENTER LT BOOST PUMP FOR 45 MINUTES. NO LOW PRESSURE LIGHT FROM 14K TO 3K.
DURING TROUBLESHOOTING OF THE NR 1 ENGINE NOT STARTING AND LOW DUCT PRESSURE, FOUND THE NR 1 ENGINE TOOK 20 SECONDS TO SHUTDOWN. NR 1 ENG VALVE LIGHT STAYS ON BRIGHT. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE HMU IAW T/C N8473000, AND T/C N8473001. OPS & LEAK CHECKED GOOD.
LEFT CENTER FUEL PUMP LOW PRESSURE LIGHT STAYED ILLUMINATED WITH 600 POUNDS FUEL IN CENTER TANK. ACFT GROUNDED. PERFORMED FIM 28-22 TASK 801. NO FAULTS OR DEFECTS FOUND. OPS TESTED GOOD FOR THE LT CENTER FUEL BOOST PUMP IAW AMM 28-22-41-710-801.
DURING ACCOMPLISHMENT OF TSR701503, NR 1 MAIN TANK FQIS FAILS SYSTEM TEST IAW TASK 28-41-00-730-801. ACFT GROUNDED. USING FMC CDU DETERMINED THE NR 1 FQIS FAILS SYSTEM TEST IAW AMM TASK 28-41-00-730-801. READINGS SHOW THAT THE COMPENSATOR PROBE IS DEAD CENTER OF TOLERANCE, AND THE TU TOTAL CAPACITANCE IS HIGH. REMOVED AND REPLACED F2, F3, F4, F5, AND F9 TANK PROBES IAW AMM 28-41-21-400-801. REPLACED THE F7 PROBE IAW AMM 28-41-21-400-801. NR 1 MAIN TANK COMP PROBE REPLACED.
CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED WITH MASTER CAUTION. THE LIGHT EXTINGUISHED WITH RESET. ACFT GROUNDED. PERFORMED A PACK/ZONE TEMP CONTROLLER BITE IAW AMM 21-61-00-700-806-002, FOUND A FLT DECK TRIM VALVE LIGHT WITH THE NR 2 CONTROLLER. REPLACED THE CONTROL CABIN TRIM AIR MODULATING VALVE IAW AMM 21-61-21/401. OPS CHECKED GOOD. ETOPS GROUND VERIFICATION SUCCESSFUL.
BOTH HF RADIOS INDICATE INOPERATIVE. ACFT GROUNDED. VERIFIED FAULT, BOTH RTPS SHOW INOPERATIVE WITH EITHER HF 1 OR 2 SELECTED. PERFORMED A RADIO TUNING PANEL INOPERATIVE DISPLAY TOGGLE IAW AMM 23-12-41-800-802. BOTH RTPS NOW SHOW SELECTED FREQUENCIES WHEN SELECTED TO EITHER HF 1 OR 2. HF 1 OPS CHECKED GOOD IAW AMM 23-11-00-710-801. HF 2 OPS CHECKED GOOD IAW AMM 23-11-00-710-801. ETOPS GROUND VERIFICATION SUCCESSFUL.
CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED. FOLLOWED QRH, LIGHT STAYED ILLUMINATED. ACFT GROUNDED. PERFORMED A PACK ZONE TEMP CONTROL BITE ON BOTH THE NR 1 AND 2 IAW FIM 21-62 TASK 801. FOUND FLIGHT DECK TRIM VALVE FAULT ON BITE, HISTORY, AND VERIFY ON THE NR 2 CONTROLLER. REMOVED AND REPLACED THE FLIGHT DECK TRIM VALVE V143 IAW AMM 21-61-21. OPS CHECKED GOOD. PERFORMED PACK ZONE TEMP CONTROL BITE ON BOTH NR 1 AND 2 IAW FIM 21-62 TASK 801. NO FAULTS.
FLT DECK HEAT CONTROL CABIN INOPERATIVE, RESET MASTER CAUTION, AND OPS CHECKED OK. ACFT GROUNDED. BITE CHECKED THE CONTROLLER, NO FAULTS FOUND.
FWD GALLEY R1 DOOR EMERGENCY EXIT SIGN LIGHT COVER FELL OFF. ACFT GROUNDED. VERIFIED FAULT, REPLACED THE SIGN ASSEMBLY. TEST PASSED IAW AMM 33-51-01-710-002.
LEFT MAIN FUEL QUANTITY INDICATOR ACCURACY APPEARS TO BE INCORRECT. DEPARTED WITH BALANCED FUEL. DURING CLIMBOUT, THE LEFT MAIN SHOWED 500 LBS LESS THEN RIGHT WHILE FEEDING FROM CENTER. SPLIT REDUCED TO -350 LBS DURING CLIMB. WHILE IN CRUISE, AFTER 2 HOURS THE LEFT TANK DROPPED TO -1000 LBS. ACFT GROUNDED. VERIFIED FUEL INDICATION BY USE OF FUEL STICKS, NO HISTORY, FQIS SHOWED FAULT 28-41103 AND 28-41002 LAST LEG. PERFORMED FIM 28-41 TASK 803, AND 28-41 TASK 809. FQIS BITE NORMAL NO CURRENT FAULTS. AND GROUND TESTED NORMAL. FUEL STICKS MATCH FUEL INDICATED.
COULD NOT TRANSMIT ON EITHER SATCOM 1 OR 2, MULTIPLE ATTEMPTS WERE MADE ON SATCOMS 1 & 2 USING BOTH CAPTAIN`S AND FIRST OFFICER`S AUDIO CONTROL PANELS, HF/SAT TRANSFER SWITCH WAS PROPERLY SET TO SAT. ATTEMPTS INCLUDED USE OF HEADSETS, AUDIO PANEL, RT SWITCHES, YOKE MIC BUTTON, AND CAPTAIN`S HAND MIC. ON EACH ATTEMPT CALL COMPLETED AND DISPATCH WAS RECEIVED LOUD AND CLEAR. THERE WAS A SIDE TONE WHEN TRANSMITING BUT DISPATCH WAS NOT RECEIVING AUDIO. ACFT GROUNDED. PERFORMED GROUND VERIFICATION ON SAT 1 & 2 IAW AMM 23-15-00-730-801. VOICE TEST SUCCESSFUL FOR BOTH OUTGOING AND INCOMING CALLS.
AFTER LANDING, ALL FMC DATA DISAPPEARED, THE AMBER FMC P/RST SWITCH LIGHT ILLUMINATED AND BOTH CDUS BLANKED,THEN RETURNED TO THE MENU PAGE BUT NO FMC WAS DISPLAYED. AFTER ABOUT 30 SECONDS FMC REAPPEARED ON BOTH CDUS AND BOTH FMCS SEEMED TO REBOOT, ALL DATA WAS LOST. ACFT GROUNDED. PERFORMED FIM 34-61 TASK 836 AND DUAL FMC RESTORED, GROUND FUNCTIONAL CHECKED GOOD, NO HISTORY OF FAULT LAST 30 DAYS.
DURING A FUEL QTY INDICATING SYSTEM CHECK, FOUR NR 1 FUEL TANK PROBES IDENTIFIED AS CAPACITANCE OUT OF LIMITS. TANK UNITS ARE F1, F6, F8 AND F10. ACFT GROUNDED. NR 1 FUEL TANK DEFUELED AND SUMPED. REPLACED THE TANK PROBES F1, F6, F8 AND F10 IAW AMM 28-41-21-400-801, OPS NORMAL IAW AMM 28-41-00-730-801. ACCOMPLISHED A FUEL QUANITY INDICATOR OPERATIONAL TEST, OPS NORMAL. ACCOMPLISHED ACCESS PANEL LEAK CHECK, NO LEAKS, OPS NORMAL IAW AMM 28-22-41-420-801.
CONT CAB ZONE TEMP LIGHT ILLUMINATED DURING CLIMB FOLLOWED QRH. AFTER 10+ MINUTES WAITING FOR DUCT TO COOL, STILL UNABLE TO RESET ZONE TEMP LIGHT. SUPPLY DUCT TEMPERATURE APPEARS NORMAL. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE PROCEDURES PER B737-800 AMM 21-61-00-700-806-002. BITE TEST IS GOOD ON BOTH CONTROLLERS. OPS CHECK GOOD. NO HISTORY PAST 30 DAYS.
ALTITUDE SELECTOR KNOB ON THE PRESSURIZATION PANEL WHEN TURNED DOESN'T CHANGE OR SELECTS A RANDOM NUMBER TO OPPOSITE DIRECTION. ACFT GROUNDED. VERIFIED FLT ALT KNOB STICKS OR WORKS BACKWARD WHEN OPERATED. REMOVED AND REPLACED CABIN PRESSURE CONTROL MODULE IAW AMM 21-31-02. ALL TESTS PASSED. NO FAULTS AFTER REPLACEMENT.
FIRE DETECTION LOOP B, FOR THE NR 1 ENGINE DOES NOT TEST. ACFT GROUNDED. ACCOMPLISHED NR 1 ENGINE FIRE DETECTION OPS TEST IAW AMM 26-11-00-710-801. NO FAULTS FOUND. PERFORMED INSPECTION OF THE NR 1 ENGINE FIRE DETECTORS AND FOUND BROKEN TERMINALS AT THE 325 HARNESS. REMOVED AND INSTALLED A NEW HARNESS TERMINAL IAW AMM 26-11-02-960-802. ACCOMPISHED OPS TESTED IAW AMM 26-11-00. SYS CHECKED NORMAL.
NR 2 ENGINE LOOSE HARDWARE ON LOWER STARTER DUCT FWD TURNBUCKLE CLEVIS AT BRACKET. ACFT GROUNDED. REPLACED THE NR 2 ENGINE LOWER STARTER DUCT FWD TURNBUCKLE CLEVIS IAW POWERPLANT BUILDUP MANUAL 71-00-02 INSTALLED NEW HARDWARE AND BUSHINGS IAW FIG 25-1 SHEET 2.
CONTROL CABIN ZONE TEMP ILLUMINATES W/MASTER CAUTION LIGHT WHEN RECALL IS DEPRESSED, LIGHT EXTINGUISHES WHEN RESET. GROUNDED - YES. RELEASED PER MEL 21-21F, CONTROL CABIN PRIMARY CONTROL INOP. PERFORMED PACK ZONE TEMP CONTROLLER BITE PER B737-800 AMM 21-61-00-700-806-002, BITE TEST IS GOOD ON BOTH CONTROLLERS, SYSTEM OP'S CHECK GOOD, NO HISTORY IN 30 DAYS.
#2 ENG REAR TURBINE FLANGE ASSY IS CRACKED @ 12, 1, 3, 4 & 7 O'CLOCK INTERMEDIATE FLANGE HOLES. GROUNDED - YES. ON DEFERRAL.
#1 ENG REAR TURBINE FLANGE ASSY IS CRACKED @ 12, 1 & 3 O'CLOCK INTERMEDIATE FLANGE HOLES. GROUNDED - YES. REMOVED AND REPLACED #1 ENG. REAR TURBINE FLANGE ASSY. SECURED. REF B737-800 AMM 78-11-02 AND 72-56-00.
APU CT5ATP EGT TREND DATA SHOWS EGT HAS SHIFTED ABOVE THE MAINTENANCE THRESHOLD OF 593 WITH A HIGH OF 606 DEGREES RECORDED. ACFT GROUNDED. REMOVED AND REPLACED APU EGT THERMOCOUPLES IAW AMM 49-71-21-000-801 AND AMM 49-71-21-400-801. OPS CHECKED GOOD. REMOVED AND REPLACED APU FUEL NOZZLES IAW AMM 49-31-14-000-801, AND AMM 49-31-14-000-801.
ENGINE FIRE SWITCH DOES NOT ILLUMINATE, NR 2 ENGINE WITH OVERHEAT DETECTOR SWITCH IN NORMAL. ACFT GROUNDED. TROUBLESHOOTING FOUND THE NR 2 ENG TEST FAILS IN NORMAL AND B LOOP. A LOOP TEST NORMAL. OPERATED NR 2 ENGINE AND PERFORMED FIRE DETECTION MODULE BITE DIRECTLY AFTER RUN IAW AMM 71-00-00. FOUND THE NR 2 CORE B LOOP FAILED. PERFORMED FIM 26-10, TASK 805. REMOVED AND REPLACED THE CORE DETECTOR IAW AMM 26-11-01. OPERATED NR 2 ENGINE AND PERFORMED FIRE DETECTION MODULE BITE AFTER RUN. NO FAULTS. CHECKED GOOD.
NR 2 ENGINE A & B LOOP FAULTED. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE A FIRE LOOP IAW AMM 26-11-02-400-802, AND 26-11-02-000-802. PERFORMED GOOD OPS TEST PER AMM 26-11-00-710-801.
EMERGENCY LIGHTS LT AFT AREA & GALLEY INOP DURING LIGHT TEST (T/C 78233008). GROUNDED - YES. REMOVED AND REPLACED AFT GALLEY LT EMERGENCY LIGHT POWER SUPPLY REF AMM 33-51-06. LIGHTS OPS CK GOOD.
ON ARRIVAL, BOTH WING ANTI-ICE LIGHTS WENT OUT AND THE NR 1 TAI LIGHT WENT OUT. ALL THREE LIGHTS WOULD NOT TEST. NOTICED THE NR 1 ENGINE, ENGINE & WING CONTROL CIRCUIT BREAKER TRIPPED. ACFT GROUNDED. TROUBLESHOT THE SYSTEM IAW FIM 30-11, TASK 810. DISCONNECTED CONNECTOR DP1103. CIRCUIT BREAKER STILL TRIPS. REMOVED AND REPLACED ENGINE AND WING ANTI-ICE PANEL IAW AMM 30-11-41. TROUBLESHOOTING FOUND WING ANTI-ICE VALVE STUCK IN TRANSIT. REMOVED AND REPLACED THE WING ANTI-ICE VALVE IAW AMM 30-11-11. OPS NORMAL, LEAK CHECKED GOOD.
DURING OVERHEAT, & FIRE TEST, NR 2 ENGINE FIRE WARNING SWITCH AND THE NR 2 OVERHEAT LIGHT DO NOT ILLUMINATE. ACFT GROUNDED. PERFORMED ENGINE FIRE DETECTION SYSTEM OPS TEST IAW AMM 26-11-00-710-801. NO FAULTS FOUND. ACCESSED NR 2 ENGINE FIRE DETECTOR LOOPS. PERFORMED ENGINE FIRE DETECTOR INSPECTION IAW AMM 26-11-01-211-801. FOUND LOWER FAN FIRE LOOP TERMINALS VERY DIRTY AND OILY. DISSASSEMBLED, CLEANED AND REINSTALLED ALL FIRE DETECTOR TERMINALS. NO OTHER DEFECTS NOTED. OPS TESTED GOOD.
FOUND TERMINAL BROKEN AT MW0325 LOOP A ON THE NR 2 ENGINE. ACFT GROUNDED. TERMINATED THE STUD, AND OPS CHECKED GOOD IAW AMM 26-11-00, AND SWPM 20-30-11.
CREW REPORTED THE NR 2 ENG GENERATOR DRIVE LIGHT ANNUNCIATOR REMAINS EXTINGUISHED WITH ENGINE SHUTDOWN. LAMPS & PRESS TO TEST FUNCTION OKAY. ACFT GROUNDED. REPLACED THE NR 2 IDG IAW AMM 24-11-11-000-801, AND AMM 24-11-11-400-801. IDLE POWER LEAK CHECKED IAW AMM 71-00-00-700-801-F00. NO LEAKS NOTED. OPS TESTED GOOD IAW AMM 24-11-00-700-803.
NR 2 ENGINE FIRE DETECTION LOOP A INOPERATIVE. ACFT GROUNDED. RETURNED NR 2 ENGINE OVERHEAT DETECTOR SWITCH ON ENGINE AND APU FIRE CONTROL PANEL BACK TO THE NORMAL POSITION. PERFORMED BITE OF ENGINE AND APU FIRE DETECTION MODULE IAW FIM 26-10-801. FOUND AN ENGINE FAN UPPER A LOOP FAULT. REMOVED AND REPLACED FAN UPPER A AND B DETECTOR ASSEMBIES IAW AMM 26-11-01. BITE AND OPS CHECKED GOOD IAW FIM 26-10 TASK 801.
WINDOW HEAT R SIDE OVERHEAT LIGHT ILLUMINATED ON DESCENT THROUGH 6000. ACFT GROUNDED. ACCOMPLISHED WINDOW OVERHEAT QRH PROCEDURES. OVERHEAT LIGHT EXTINGUISHED.
WHILE ACCOMPLISHING T/C 78472002, FOUND ALL 24 SHIMS MISSING 100% OF MOLYDAM COATING ON THE NR 1 ENGINE. ACFT GROUNDED.
WHILE ACCOMPLISHING MAINTENANCE TASK CARD 78472002 FOR FAN BLADE LUBRICATION, FOUND 24 OF THE FAN BLADE SHIMS ON THE NR 2 ENGINE WORN. ACFT GROUNDED. REMOVED AND REPLACED THE FAN BLADE SHIMS IAW TASK CARD 78472002.
R1 DOOR EMERGENCY EXIT LIGHT INOPERATIVE. ACFT GROUNDED. REMOVED & REPLACED THE BATTERY PACK & OPS CHECKED GOOD IAW AMM 33-51-06-960-005.
FOUND CRACK INDICATION LOWER RT STABILIZER STAB STA 101.90 AFT SECTION MARKED AND CIRCLE IN RED. GROUNDED - YES. REPAIRED HORZ STAB LOWER SKIN IAW SRM 55 10 01 2R 11.
DURING LANDING, THE PRESSURIZATION "AUTO" DRIVES THE OUTFLOW TO FULL CLOSED DURING, AFTER TOUCHDOWN. IT CONTINUES TO TRY TO PRESSURIZE THE AIRCRAFT ON THE GROUND THE SYSTEM WORKS NORMALLY IN ALTERNATE MODE. ACFT GROUNDED. COMPLIED WITH PRESSURE SYSTEM GROUND TEST IAW AMM TASK 21-31-00-700-802, TEST PASSED. OUTFLOW VALVE NO LONGER DRIVES CLOSE IN AUTO MODE.
NR 1 HF UNABLE TO TRANSMIT/RECEIVE. REPORTS 4/5 SIGNAL BUT VOICE TOTALLY GARBLED. WE COULD NOT RECEIVE EITHER ON NR 1HF. NR 2 HF TESTED IN COMPARISON WAS 5/5, OPS NORMAL. TRANSMIT AND RECEIVE SAME GEOGRAPHIC LOCALE. GROUNDED - YES. REF HF SYSTEM/OPS TEST AMM 23-11-00-501. VOICE COMM TESTS ON HF-1 WAS UNSUCCESSFUL, NO TRANSMIT OR RECEIVE CONFIRMED. HF-2 WAS FAINT. BOTH HF 1 AND 2 ATOMIC CLOCK WAS HEARD VIA FREQUENCY 5000 AND NOTHING MORE. REMOVED AND REPLACED HF-1 TRANSCEIVER, REF AMM 23-11-21-000801. VOICE COMM TEST SUCCESSFUL. ESTABLISHED LOUD AND CLEAR TRANSMIT/RECEIVE 2/2, 3/3 WITH SFO. GROUND VERIFICATION CONFIRMED.
F/O MCDU DOES NOT RESPOND TO KEY INPUTS. ACFT GROUNDED. REMOVED & REPLACED THE FO'S MCDU IAW AMM 34-36-01. OPS NORMAL.
WITH NR 2 ENGINE OVER HEAT DETECTOR SWITCH IN A LOOP POSITION FAULT LIGHT ILLUMINATES INTERMITTENTLY. ACFT GROUNDED. REPLACED THE NR 2 ENGINE FAN FIRE DETECTION HARNESS IAW AMM 26-11-02-000-801, AND REPLACED THE UPPER FAN FIRE DETECTOR IAW AMM 26-11-01-400-802. REMOVED AND REPLACED LOWER FAN FIRE DETECTOR ASSEMBLY, RIGHT CORE FIRE DETECTOR ASSEMBLY, AND LEFT CORE FIRE DETECTOR ASSEMBLY ON NR 2 ENGINE IAW AMM 26-11-01. REMOVED AND REPLACED CORE FIRE DETECTION HARNESS MW0326 IAW AMM 26-11-02. PERFORMED OPS CHECK OF ENGINE FIRE DETECTION SYSTEM, OPS CHECK GOOD IAW AMM 26-11-00.
CONTROL CABIN ZONE TEMP ILLUMINATED DURING DESCENT. ACFT GROUNDED. THE NR 2 ZONE TEMP LOGGED FLT DECK TRIM VALVE, BITE TESTED GOOD, FAULT RESET IAW FIM 21-61 TASK 801.
INTERMITTENT FAULT LIGHT ILLUMINATED DURING CLIMB, ON THE FIRE PANEL FOR ABOUT 2 MINUTES, THEN EXTINGUISHED. ACFT GROUNDED. REPLACED THE NR 2 ENGINE FAN FIRE DETECTION HARNESS, IAW AMM 26-11-02-000-801, AND REPLACED THE 2 ENGINE UPPER FAN FIRE DETECTOR IAW AMM 26-11-01-400-802. REMOVED AND REPLACED THE LOWER FAN FIRE DETECTOR ASSEMBLY, RIGHT CORE FIRE DETECTOR ASSEMBLY, AND LEFT CORE FIRE DETECTOR ASSEMBLY IAW AMM 26-11-01. REMOVED AND REPLACED CORE FIRE DETECTION HARNESS IAW AMM 26-11-02. PERFORMED OPS CHECK OF ENGINE FIRE DETECTION SYSTEM, OPS CHECKED GOOD IAW AMM 26-11-00.
AUTOTHROTTLES WILL NOT STAY ENGAGED. GROUNDED - YES. LAST FLT, A/T FLT FAULT SHOWS A/T ENG 28V DC INV 22-31543. PERFORMED FIM 22-31 TASK 802 / 22-31 TASK 801, A/T CURRENT STATUS AND A/T INTERACTIVE SERVO MOTOR TESTS NUMEROUS TIMES WITH NO FAULTS. NO HISTORY LAST 6 MONTHS. GROUND VERIFICATION TEST GOOD. REF LWMP SYSTEM TABLE: A/T OPERATIONAL TEST REF AMM 22-31-00 GOOD. A/C REMAINS CAT IIIA AUTOLAND AND HGS. STATUS SCREW SHOWS SAME.
C/B ENGINE NR 1 ENGINE & WING CONTROL POPPED. GROUNDED - YES. REF FIM 30-11 TASK, GROUND WING THERMAL ANTI-ICE VALVE FOR NR 1 ENGINE REPLACED ON 1/25/2017, REF LOG PAGE 11626191. CHECKED WIRING BETWEEN GROUND WING TAI TEMPERATURE SOLENOID VALVE M1236 AND FIREWALL DISCONNECT, CHECKED GOOD. REF WDM 30-21-11, WDM 30-11-11, CHECKED WIRES BETWEEN DP1303 TO DP1326, NO DEFECTS FOUND. CHECKED WIRE BETWEEN P5-11 D462 PIN 12 TO PIN 4 DP1303, CHECKS GOOD. PERFORMED GVI OF P18-3 AT C/B C148, NO DEFECTS FOUND. REMOVED AND REPLACED ENGINE COWL TAI VALVE, REF AMM 30-21-11. OPS CHECK GOOD.
CREW REPORTS NR 2 ENGINE B FIRE LOOP WILL NOT TEST (NO HANDLE LIGHT). ACFT GROUNDED. REPLACED BOTH ENGINE CORE FIRE DETECTOR ASSEMBLY, IAW AMM 26-11-01. INSPECTED AND FOUND UPPER FAN ENGINE FIRE DETECTOR LOOP GROMMETS WORN BEYOND LIMITS. REMOVED AND REPLACED UPPER AND LOWER ENGINE FAN FIRE DETECTOR LOOPS, IAW AMM 26-11-01. PERFORMED OPS CHECK OF FIRE DETECTION SYSTEM, IAW AMM 26-11-00, OPS CHECKED GOOD.
NR 2 ENGINE FIRE TEST FAIL, A LOOP TESTS PASS. B LOOP TEST ENGINE 2 OVERHEAT LIGHT STAYS ILLUMINATED ALL OTHER FUNCTIONS TESTED NORMAL. GROUNDED - YES. REMOVED AND REPLACED ENG/APU FIRE DETECTION MODULE IAW AMM 26-10-01-000-801 AND 26-10-01-400-801. OPERATIONAL CHECKS GOOD IAW AMM 26-11-00-710-801 AND 26-15-00-710-801.
NR 1 ENGINE AND WING CONTROL CIRCUIT BREAKER TRIPPED ON P-18-3 PANEL. WING ANTI-ICE SWITCH FOUND IN ON POSITION. ACFT GROUNDED. REMOVED AND REPLACED THE WING GROUND THERMAL ANTI-ICE SOLENOID VALVE NR 1 ENGINE IAW AMM 30-11-12. OPS TEST PASSED.
EMERGENCY LIGHT COVER AT 23C IS MISSING. ACFT GROUNDED. INSTALLED A NEW COVER.
THE NR ENGINE B FIRE LOOP FAILED A TEST. ACFT GROUNDED. REMOVED AND REPLACED BOTH TOP LUG TERMINALS (FOUND ONE BAD AND THE OTHER ONE QUESTIONABLE) FOR THE RIGHT CORE FIRE DETECTOR IAW AMM 26-11-02. REMOVED AND REPLACED RIGHT CORE FIRE DETECTOR AS PRECAUTION IAW AMM 26-11-01. ACCOMPLISHED NR 2 ENGINE FIRE DETECTION TEST IAW AMM 26-11-00, OPS CHECKED GOOD.
AFTER LANDING SWITCHING TO APU PWR THE NR 1 COWL VALVE / WING ANTI ICE VALVE CIRCUIT BREAKER POPPED. GROUNDED - YES. NO HISTORY PAST 90 DAYS, OPENED & GVI P18-3A6 C/B NO DEFECTS NOTED. GND IDLE NR 1 ENG OPS CHECKED NR 1 ENG ANTI-ICE ON GENERATOR & APU PWR, P18-3A6 C/B NR 1 ENG. ENGINE AND WING CONTROL STILL OPEN. REPLACED NR 1 ENG WTAI S/O VALVE PER AMM 30-11-11, LEAK TEST & OPS TEST GOOD. PREFORMED BONDING CHECK OF WING - ANTI-ICE VALVE ON LEFT WING REF AMM 30-11-11 TEST GOOD.
F/O MCDU LOCKED UP WITH FLASHING "BUTTON PUSH IGNORED" MESSAGE IN SCRATCH PAD. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT, F/O'S GROUND VERIFICATION TEST PASSED, IAW AMM 34-61-01.
WITH LOOP SELECTORS IN, NR 2 ENGINE DOES NOT TEST ON FIRE SYSTEM CHECK. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT. IAW AMM 26-11-00, ACCOMPLISHED ENGINE FIRE DETECTION LOOP RESISTANCE SYSTEM TEST, ALL VALUES ARE WITHIN LIMITS. REINSTALLED ENGINE, AND APU FIRE DETECTION MODULE IAW AMM 26-10-01, OPS CHECKED NORMAL.
APU DRAIN MAST CRACKED ON AFT EDGE. ACFT GROUNDED. VERIFIED 0.80 INCH CRACK W/ HFEC MM NDT- PART 6 51-0-0 NR 23. REMOVED APU DRAIN MAST IAW AMM 28-25-07-020-801. INSTALLED APU DRAIN MAST IAW AMM 28-25-07-420-801.
ON MASTER CAUTION RECALL, CONTROL CAB ZONE TEMP LIGHT ILLUMINATED. ACFT GROUNDED. NO FAULT ON RECALL. ACCOMPLISHED FIM 21-61 TASK 801 CABIN TEMPERATURE CONTROLLER BITE PROCEDURE. NO FAULTS RECORDED. OPS TESTED NORMAL.
DURING MASTER CAUTION RECALL, RIGHT PACK LIGHT ILLUMINATED, RESET WITH MASTER CAUTION RESET. ACFT GROUNDED. FOUND THE RT TCV FAULTING, REMOVED & REPLACED THE TCV, IAW AMM 21-51-10. OPS & LEAK CHECKED GOOD.
DURING PDC FOUND NR 1 TRANSFER BUS OFF LIGHT ON. NO POWER TO NR 1 BUSS. ACFT GROUNDED. PERFORMED TRANSFER BUSS OFF LIGHT ILLUMINATES FAULT ISOLATION IAW FIM 24-21 TASK 822. FOUND BTB FAULT ON NR 1 GEN CONTROL UNIT. PERFORMED BTB FAULT ISOLATION IAW FIM 24-21 TASK 810. REMOVED AND REPLACED BTB1, C804 IAW AMM 24-21-41. OPS CHECKS GOOD. GROUND VERIFICATION SATISFACTORY.
WHILE ACCOMPLISHING TSR908214, FOUND APU BITE CURRENT STATUS WITH FAULT MESSAGES 49-72101 DATA MEMORY MODULE POWER SHOWS HIGH CURRENT AND 49-72103 DATA MEMORY MODULE SHOWS CIRCUIT FAILURE. GROUNDED - YES. REMOVED AND REPLACED APU DMM PER B737-800 AMM 49-72-11. OPERATION TEST NORMAL & NO FAULTS MSG 49-72103 & 49-72101 NOTED. CLEARED MEL 49-1B.
VTK FLAG ON F/O ND AT CRUISE. SINGLE FMC OPS IN MCDU SCRATCH PAD. FAULT CLEARED IN APPROXIMATELY 10 SECONDS WITH NO CREW INTERVENTION. ACFT GROUNDED. PERFORMED RIGHT FMC BITE FIM 34-61 TASK 801. FOUND PROGRAM FAULT LOGGED ONE TIME. CURRENT STATUS SHOWS NO FAULTS. ACCOMPLISHED FIM 34-61 TASK 807. NO FAULTS FOUND.
VTK ON CAPTAIN'S ND FOR ABOUT 10 SECONDS ON TAXI IN. LIGHT WENT OUT WITHOUT ANY CORRECTIVE ACTION. ACFT GROUNDED. PERFORMED LEFT FMC BITE FIM 34-61 TASK 801. FOUND PROGRAM FAULT LOGGED ONE TIME. CURRENT STATUS SHOWS NO FAULTS. ACCOMPLISHED FIM 34 -61 TASK 807. NO FAULTS FOUND.
FA REPORTS HARD TO ARM R1 DOOR. ACFT GROUNDED. REMOVED SLIDEPACK, ADJUSTED SLIDE E-FOLD FOR PROPER EXPOSURE. REINSTALLED SLIDE PACK, IAW AMM 25-66-01-400-803.
AUTO FAIL AMBER LIGHT ON OVERHEAD PRESSURIZATION PANEL ILLUMINATED AND REMAINED DURING PRE FLIGHT. ACFT GROUNDED. PERFORMED BITE PROCEDURE ON NR 1 & 2 DIGITAL CABIN PRESSURE CONTROLLERS IAW FIM 21-31 TASK 801, CHECKED GOOD, NO FAULTS NOTED. AUTOFAIL AMBER LIGHT EXTINGUISHED. GROUND VERIFICATION CHECKED GOOD.
DURING CLIMB, PASSING FL 340, DUCT PRESSURE SPLIT EXCEEDING 20. RIGHT DUCT PRESSURE 25, LEFT 49. BOTH ENGINES AT 100 PERCENT N1. ACFT GROUNDED. R & R NR 2 ENG BLEED AIR REGULATOR IAW AMM 36-11-03-000-801 AND 36-11-03-400-801. OPS CHECK NORMAL.
DURING PDC WALK AROUND, FOUND FUEL LEAK ON NR 2 ENGINE. ACFT GROUNDED. R & R NR 2 ENGINE MAIN OIL/FUEL HEAT EXCHANGER REF AMM 79-21-02 AND 73-11-07. ACCOMPLISHED AMM 71-00-00-700-801-F00, TEST 3A. LEAK CHECK OK. ACCOMPLISHED TEST 12 ACTUATORS TEST REF AMM 71-00-00-700-807-F00. TEST PASSED.
F/A'S REPORT R1 EMERGENCY SLIDE PACK HANGS LOW AND MAKES IT HARD TO ARM AND DISARM. ACFT GROUNDED. REPOSITIONED R1 SLIDE AND GIRT INTO SLIDE COVER ASSY, REF AMM 25-66-01. GIRT BAR LATCHES AND UNLATCHES NORMAL.
CONTROLLER CAB ZONE TEMP ILLUMINATES ON RECALL. ACFT GROUNDED. BITE OF BOTH CONTROLLERS SHOWS CABIN SENSOR FAULT FOR PREVIOUS FLIGHT. FOUND CABIN SENSOR FILTER CLOGGED. CLEANED FILTER, REF AMM 21-61-06-100-801. BITE TEST BOTH CONTROLLERS CHECKS GOOD, REF AMM 21-61-20-400-801.
FMC LT FAILED. QRH FOLLOWED WHICH RESTORED NORMAL OPS. ACFT GROUNDED. CYCLED POWER TO LT FMC, OPS RESTORED. CHECK OK, REF FIM TASK 34-61 NR 836.
PLASTIC COVER OVER EXIT LIGHT AT 17A HAS COME UNATTACHED. ACFT GROUNDED. REINSTALLED LENS COVER AT 17A, OPS NORMAL.
F/O WINDOW WILL NOT SLIDE SHUT. ACFT GROUNDED. REPOSITION F/O SLIDING WINDOW BACK INTO TRACK. NO DAMAGE. OPS CHECK NORMAL. REF AMM 56-12-11-710-803.
LEFT HORIZONTAL LOWER SKIN IS CRACKED-INBD OF THE 6TH DRAIN HOLE. ACFT GROUNDED. ACCOMPLISHED HFEC TO VERIFY CRACK LOCATION REF NDT MANUAL 51-00-00, PART 6 PROCEDURE 23, LOCATED END OF CRACK LOCATION MEASURED APPROXIMATELY 1.5" IN LENGTH, CRACK IS CONFIRMED. REMOVED DAMAGE IAW SRM 55-10-01, REPAIR 11. FABRICATED REPAIR FILLER .063 2024T3 BATCH 1789764 AND DOUBLER .100 2024 T3 BATCH NR 1448248. PERFORMED HFEC ON CUT OUT AND EXISTING HOLES REF 51-00-00, PART 6. ALODINED REPAIR PIECES IAW SRM 51-20-01. OK TO INSTALL REPAIR DOUBLER REF SRM 55-10-01-2R-11. INSTALLED REPAIR DOUBLER REF SRM 55-10-01-2R-11.
EXIT ROW LIGHT COVER IS MISSING NEAR FLOOR ROW 17A. ACFT GROUNDED. INSTALLED NEW EXIT LENS COVER.
WHILE ACCOMPLISHING FAN BLADE LUBE ON NR 1 ENGINE FOUND SHIMS WORN AND SEVERAL RUBBER AXIAL BUMPERS WORN ON AFT SPINNER REF T/C 78472002. ACFT GROUNDED. R & R SHIMS AND RUBBER AXIAL BUMPERS FOR NR 1 ENGINE IAW FAN BLADE LUBE T/C 78472002.
ON RECAL THE ZONE TEMP LIGHT FOR THE CONTROLLER CABIN ILLUMINATED. PERFORMED QRH PROCEDURE AND LIGHT WENT OUT WITH MASTER CAUTION PUSH TO RESET. ACFT GROUNDED. REPLACED THE CONTROLLER CABIN TRIM AIR MODEL VALVE ASSY REF MM 21-61-21. OPS BITES CHECK GOOD, NO LEAKS FOUND.
WHILE PERFORMING T/C 78472002 FAN BLADE LUBE ON NR 2 ENGINE FOUND FAN BLADE SHIMS WORN. ACFT GROUNDED. REPLACED, 24EA, FAN BLADE SHIMS, PN 340-252-307-0 ON NR 2 ENGINE IAW T/C 78472002, STEP 42.
NR 2 ENGINE FRONT SPINNER CONE HAS ONE JACKSCREW THREADED INSERT MISSING. ACFT GROUNDED. REPLACED NR 2 ENGINE FRONT SPINNER CONE IAW AMM 72-21-01.
AFTER LANDING ENGINE TAI SELECTED OFF NR 2 ENGINE TAI REMAINED ON WITH BRIGHT BLUE COWL VALVE OPEN LIGHT AND TAI ANNUNCIATED ON ENGINE INSTRUMENTS. AFTER ENGINE SHUT DOWN COWL LIGHT WENT OUT. ACFT GROUNDED. REPLACED NR 2 ENGINE COWL THERMAL A/I CONTROL VALVE LEAK CHECK OPS CHECK GOOD REF 30-21-11-000-801.
EMERGENCY LIGHTING SWITCH, OPS CHECK AND BATTERY PACKS, FUNCTIONAL CHECK, BATTERY PACKS AT M1673 AND M1675 FAILED CAPACITY CHECK. ACFT GROUNDED. REPLACED BATTERY PACKS AT M1673 AND M1675. INSTALLATION TEST PASSES. REF AMM 33-51-06/201.
ELECTRONIC CAUTION LIGHT ILLUMINATED ON OVERHEAD PANEL. ACFT GROUNDED. PERFORMED FIM TASK 24-31-801, SPCU INOPERATIVE "I" INDICATED, FAULT RESET, ELECTRONIC LIGHT EXTINGUISHED INTERMITTENT FAULT. ACFT OK FOR SERVICE.
LEFT PACK LIGHT ILLUMINATES AFTER MASTER CAUTION RECALL. EXTINGUSHES WITH MASTER CAUTION RESET, ACFT GROUNDED. BITE CHECK OF NR 1 PACK/ZONE TEMP CONTROLLER, M 1442, FAULTS TCV THIS PACK. REPLACED LT PACK TCV, V 139. INSTALLATION TEST PASSES. NO LEAKS NOTED, REF AMM 21-51-10/401.
WHEN LOWER CRUISE ALTITUDE IS SET IN ALTITUDE ALERTER WHILE ON VNAV & ALTITUDE INTERVENTION BUTTON PRESSED, NEW MCP ALTITUDE DOES NOT DISPLAY IN FMC CRUISE PAGE AND FMA ANNUNCIATION ON LEVEL OFF AT NEW CRUISE ALTITUDE CHANGES TO ALT HOLD. ACFT GROUNDED. DFCS CURRENT STATUS TEST PASSED, FFR SHOWS NO FAULTS ON PREVIOUS FLT LEG. ACCOMPLISHED DFCS LRU INTERFACE TEST FOR MCP NR 32, ALT INTV BUTTON INTERFACE PASSED. BG 15.61 ALTITUDE ALERT TEST PASSED, REF MM 22-00-01. BOTH FMC OPS TEST NORMAL WITH NO FAULTS ON LAST FLT LEG IAW MM 34-61-00.
SATCOM LOCKUP. ACFT GROUNDED. QRH PROCEDURE FOLLOWED FOR RESET. SYSTEM SUCCESFULLY RESET.
ROW 16ABC, EMERGENCY EXIT LIGHT LENS MISSING. ACFT GROUNDED. INSTALLED NEW LENS COVER.
TECH SERVICES REQUESTS FOLLOW-UP TO NR 2 ENGINE IDG FREQUENT SERVICING. ACFT GROUNDED. PERFORMED STATIC LEAK CHECK ON NR 2 IDG NO LEAKS AMM REF 24-11-00-700-801. R & R IDG VENT VALVE AND IDG SERVICE FITTING ON NR 2 IDG AMM REF 24-11-00-700-804, NO LEAKS NOTED.
LEFT PACK LIGHT ILLUMINATED AFTER TAKEOFF. AFTER RESET, IT EXTINGUISHED. UPON RECALL IT ILLUMINATES, BUT CLEARS ON RESET. ACFT GROUNDED. ACCOMPLISHED CABIN TEMP CONTROLLER BITE. FOUND LT PACK TCV VALVE FAULT. RESET, OPS CHECK NORMAL. NO HISTORY, REF FIM TASK 21-61-00-810-801.
NR 1 ENGINE AFT ACCOUSTICAL PANELS AT 4-6 O`CLOCK, FASTENERS ARE LOOSE AND WORN 6 TOTAL. ACFT GROUNDED. REPLACED THE FASTENERS IAW AMM 72-23-02-400-801-F00.
AFT CARGO COMPARTMENT, RT NR 5 CAP STRIP HAS SURFACE CORROSION. ACFT GROUNDED. REMOVED CORROSION AND FOUND BEYOND ALLOWABLE LIMITS IAW SRM 53-00-53-1A-2, ORIGINAL MATERIAL THICKNESS IS 0.063", REMAINING THICKNESS IS 0.050", REMOVED 0.013". REPLACED CAPSTRIP WITH NEW PART IAW SRM 51-10-02, PARA 9.
AFT PIT, TRANSITION PANEL FROM FWD BULKHEAD TO BS 727D RT SIDE HAS NUMEROUS AREAS OF CORROSION. ACFT GROUNDED. REMOVED CORROSION IAW SRM 53-00-53 FROM BS 727+4 TO 727C+8 AND 727C+13 TO 727D FOUND TO BE WITHIN LIMITS ORIG THICKNESS .040 REMOVED .002 REMAINING .038 FROM STA 727C+8 TO 727C+13 FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-00-53-1A-2 ORIG THICKNESS .40 REMOVED .008 REMAINING .032 MARKED BLEND OUT AREA IAW AMM 51-05-01 ALODINED AND PRIMED IAW SRM 51-20-01, ACCOMPLISHED SPLICE REPAIR FROM STA 727C +8 TO 727C+13 IAW SRM 53-00-53-2A-5, REMOVED DOT A510 .
AFT CARGO BAY TRANSITION PANEL BS 727F - 767 LT SIDE HAS NUMEROUS AREAS OF CORROSION. ACFT GROUNDED. REMOVED CORROSION IAW SRM 53-00-53-01, ORIGINAL MATERIAL THICKNESS .040 IAW SRM 53-00-53 AND DWG 1496-377 MATERIAL REMOVED .003, MAT REMAINING AFTER BLENDOUT .037 FOUND TO BE WITHIN LIMITS IAW SRM 53-00-53, FINISH RESTORED IAW SRM 51-20-01, DOT A506 REMOVED.
AFT CARGO BAY TRANSITION PANEL BS 727F-767, LT SIDE HAS NUMEROUS AREAS OF CORROSION. ACFT GROUNDED. REMOVED CORROSION IAW SRM 53-00-53-01, SRM 53-00-53 AND DWG 1496-377. FOUND TO BE WITHIN LIMITS IAW SRM 53-00-53.
AFT CARGO BAY FLOORBOARD ATTACH STRAP IS CORRODED AT BS 767. ACFT GROUNDED. REMOVED CORROSION AND FOUND BEYOND ALLOWABLE LIMITS IAW SRM 53-00-53-1A-2. ORIGINAL THICKNESS IS .070", REMAINING THICKNESS IS 0.037", REMOVED 0.033". R & R STRAP IAW SRM 51-40-02 AND 51-10-02, PARA 9. REMOVED DOT A505.
MAIN CABIN FLOORBEAM CRACKED BS 540, BL 0, LBL 5. ACFT GROUNDED. REMOVED THE CRACKED FLOORBEAM IAW SRM 51-40-02, PARA NR 7. DRILLED TO FIT THE NEW FLOORBEAM IAW SRM 51-40-05. INSTALLED THE NEW FLOORBEAM IAW SRM 51-40-02, PARA NR 7.
MAIN CABIN FLOORBEAM CRACKED BS 540, BL 0 - RBL 5. ACFT GROUNDED. REMOVED THE CRACKED FLOORBEAM IAW SRM 51-40-02, PARA NR 7. DRILLED TO FIT NEW FLOORBEAM IAW SRM 51-40-05. INSTALLED THE NEW FLOORBEAM IAW SRM 51-40-02, PARA NR 7.
FWD CARGO COMPARTMENT, FLOOR PANEL 120CF IS GOUGED, ACFT GROUNDED. FABRICATED NEW FLOOR PANEL 120CF IAW DWG 453A0610, TREATED IAW SRM 51-20-01. ALODINED AND PRIMED.
NR 1 REFUEL GAUGE INOPERATIVE. ACFT GROUNDED.
FMC DISAGREE ON TAXI OUT. ACFT GROUNDED. RESOLVED IAW QRH.
ON FINAL THE RT SIDE WINDOW HEAT OVERHEAT ILLUMINATED. COMPLETED THE QRH CHECKLIST AND OVERHEAT LIGHT EXTINGUISHED. LINE MAINTENANCE ADVISED. ACFT GROUNDED. BITE TESTED RT SIDE WHCU REF FIM 30-41, TASK 801. TEST OK. LAST FLIGHT LEG HAS FAULT FOR SENSOR. HAS RECENT HISTORY. INSPECTED & VERIFIED PRIMARY SENSOR IS OPEN. REF WD 30-41-11. CHECKED ALL CONNECTIONS AT WINDOW - FAULTS FOUND. DUE TO HISTORY , SUGGEST R2 WINDOW. FIM 30-41, TASK 812. REMOVED THE R2 WINDOW REF 56-12-11-000-801, BEGAN INSTALLATION OF R2 SLIDE WINDOW REF AMM 56-12-11-400-801, STEP 3A-3F, 6. WINDOW HEAT OPS CK GOOD & ALL GROUND FUNCTIONAL TEST PASSED REF MM 30-41-00. COMPLETED RT R2 WINDOW SLIDING INSTALLATION LEAK & OPS CK GOOD REF AMM 56-12-11.
WINDOW HEAT, RIGHT SIDE OVERHEAT LIGHT ON. ACFT GROUNDED. RIGHT SIDE WINDOW PRIMARY SENSOR OPEN. MOVED "D" TERMINAL TO SPARE TERMINAL. WHCU UNIT BITE VERIFY CHECK PASSES. REF FIM 30-41, TASK 811.
F/O MCDU, CONTROL DISPLAY UNIT, BUTTON 6L COMING OFF. ACFT GROUNDED. REPLACED F/O MCDU KEYPAD. INSTALLATION TEST PASSES. REF AMM 34-61-01-400-801.
RT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED AT 15,000 FT. SWITCH TURNED OFF BY DIRECTION OF QRH. SWITCH TURNED BACK TO ON. WINDOW HEAT THEN FUNCTIONED NORMALLY. ACFT GROUNDED. REF AMM 30-41, TASK 801, PERFORMED BITE CHECK ON WINDOW HEAT SYS NO FAULTS FOUND. INSPECTED R2 WINDOW HEAT SENSOR NO DEFECTS NOTED. AS PRECAUTIONARY REPLACED R2 WINDOW HEAT CORD AND PERFORMED GROUND OPS CHECK, GROUND VERIFICATION CHECK SUCCESSFUL REF AMM 30-41-00-710-801. OK FOR CONTINUED SERVICE. REMOVED, REPLACED AND TESTED RT SIDE WHCU IAW MM 30-41-11. ACCOMPLISHED WINDOW HEAT SYS OPS TEST IAW MM 30-41-00-710-801. ALL TESTS PASS, ETOPS SIGNIFICANT SYS GROUND VERIFICATION SUCCESSFUL.
RIGHT SIDE WINDOW HEAT OVERHEAT. ACFT GROUNDED. PERFORMED AMM TASK 30-41, TASK 801. OPS NORMAL. NO HISTORY IN 30 DAYS. NO FAULT NOTED.
SATCOM LOCKUP DURING PREFLIGHT. ACFT GROUNDED. RESET SATCOM IAW QRH PROCEDURE OPS NORMAL.
AUTOTHROTTLE INOPERATIVE. ACFT GROUNDED. ACCOMPLISHED AT BITE, NO FAULTS REF AMM 22-31-00-710-801 AND DFCS BITE LRU REPLACEMENT TEST, NO FAULTS REF AMM 22-00-01-730-801. NO HISTORY.
FUEL DRIP ON NR 2 ENGINE. ACFT GROUNDED. ACCOMPLISHED VENT AND DRAIN INSP REF AMM 71-71-00-200-801. IDENTIFIED LEAK FROM NR 2 ENG LEFT VSV AT 4 DROPS PER MINUTE. LESS THAN THRESHOLD LIMIT OF 60 DROPS IAW MINUTE. PLACED ON 75 CYCLES PLT, FOR COMPONENT TO BE REPLACED. ON DEFERRAL.
PACK LT OBSERVED ON DURING CLIMBOUT, =18,000, RAN QRH. WARMED TEMP, TRIP RESET, PACK LIGHT CLEARED ON MASTER CAUTION RESET. ACFT GROUNDED. WHILE ON DEFERRAL, AT CRUISE, RT PACK LIGHT ILLUMINATED. FOLLOWED CHECKLIST. LIGHT EXTINGUISHED WHEN MASTER CAUTION SYSTEM WAS RESET. PERFORMED BITE TEST ON NR 2 ZONE TEMP CONTROLLER. FOUND FAULT WAS RAM AIR ACTUATOR. REPLACED RT RAM AIR INLET ACTUATOR IAW AMM 21-51-21-000-801 AND 21-51-21-400-801, OPS CHECK GOOD.
ON RECALL RT PACK LIGHT ILLUMINATED. PERFORMED QRH PROCEDURES PRESSING MASTER CAUTION - PUSH IT RESET LIGHT WENT OUT. GROUNDED - YES. OPERATED RT. PACK PER FIM TASK 21-53 TASK 804, PACK LIGHT DID NOT ILLUMINATE AGAIN. OK FOR SERVICE.
FMC DISAGREE ON GROUND, ACFT GROUNDED. QRH CORRECTED THE ANOMALY.
SAT/COM LOCK UP. ACFT GROUNDED. ACCOMPLISHED QRH. OPS NORMAL.
"FMC" DISAGREE", ACFT GROUNDED. ACCOMPLISHED "FMC" DISAGREE" QRH PROCEDURE.
DC 1 AUTOTHROTTLE CB OUT. ACFT GROUNDED. RESET C/B, A/T CURRENT STATUS BITE TEST, NO FAULTS. DFCS LRU REPLACEMENT TEST FOR A/T, BITE GROUP NR 43, REF FIM 22-11, TASK 802 - PASS.
SATCOM LOCKUP, ACFT GROUNDED. RESET IAW QRH.
CONTROLLER CABIN ZONE TEMP LIGHT ILLUMINATED UPON RECALL, EXTINGUISHES UPON MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED TEMP CONTROLLER BITE, NR 1 AND NR 2 TEMP CONTROLLERS BOTH SHOW FLT DECK TRIM VALVE FAULTS ON BITE AND PREVIOUS FLTS. REPLACED CONTROLLER CABIN ZONE TRIM AIR MODULATING VALVE REF MM 21-61-21. PERFORMED BITE TEST ON PACK/ZONE TEMP CONTROLLERS REF MM 21-61-00. NO FAULTS NOTED.
EEC-ON -OTA 15'C-WIND CALM ENG ANTI-ICE-OFF-30.08 WING ANTI-ICE-OFF REDUCE POWER TAKEOFF 8 FMC COMPUTED DIFFERENT N1 TARGET VALUES OF 0.7 ENG 1 89.8 ENG NR 2, 89.1. ACFT GROUNDED. PREFORMED FIM TASK 34-61-839, AND SUB TASK MM 34-61-00-730-001. NO DEFECTS FOUND NO HISTORY PAST 30 DAYS.
ON GROUND, AFTER PUSHBACK GOT FMC DISAGREE ALERT. ACFT GROUNDED. FOLLOWED QRH PROCEDURES ALERT DISAPPEARED.
UPON PUSH BACK STARTUP IN MCO MASTER CAUTION RECALL TEST REVEALED ZONE TEMP LIGHT ILLUMINATED EXTINGUISHED WHEN MASTER CAUTION RESET BUTTON PRESSED. ACFT GROUNDED. PERFORMED BITE CK OF NR 2 TEMP CONTROLLER. FOUND INTERMITTENT FAULT.
DURING TAXI FMC DISAGREE ANNUNCIATED. ACFT GROUNDED. FOLLOWED QRH- SUCCESSFULLY RESET.
SATCOM LOCKUP. ACFT GROUNDED. QRH PROCEDURE FOLLOWED. SATCOM RESTORED.
RT FMC FAILED. ACFT GROUNDED. PERFORMED FIM TASK 34-61-801, FMC GROUND VERIFICATION. TEST PASSED. NO FAULTS FOUND. NO FURTHER MAINTENANCE ACTION REQUIRED.
AFTER PUSH BACK RECEIVED "FMC DISAGREE" MESSAGE, ACFT GROUNDED. PERFORMED QRH FMC RESET PROCEDURE, OPS NORMAL. VERIFIED FMC OPS NORMAL, IAW MM 34-61-01-800-801.
AFTER ENGINE START, PLACED BOTH ENGINE ANTI-ICE SWITCHES ON , THE ENGINE NR 2 COWL VALVE OPEN LIGHT REMAINED BRIGHT. CLOSED APU BLEED AIR SWITCH OFF & INCREASED THRUST TO 40 PERCENT N1 ON NR 2 ENGINE. COWL VALVE OPEN LIGHT REMAINED ILLUMINATED BRIGHT BLUE AS WELL AS AMBER "TAI" ABOVE N1 INDICATOR. ACFT GROUNDED. REPLACED NR 2 ENGINE COWL TAI VALVE REF AMM TASK 30-21-11-000-801 AND 30-21-11-400-801, OPS TEST PASSED.
NR 1 ENGINE, FOUND AT FIVE O-CLOCK ACOUSTICAL PANEL FWD CTR FASTENER WASHER MISSING & PULL THRU DAMAGE IN PANEL. ACFT GROUNDED. REPLACED NR 1 ENG 5' O CLOCK ACOUSTICAL PANEL WITH NEW REF: AMM 72-23-02.
NR 2 ENGINE, PERFORMED TC 78273000, HAD FAULT CODE 77-20872 - ECONOMIC FAULT, "THE TOP LEFT EGT SIGNAL IS OUT OF RANGE". ACFT GROUNDED. PERFORMED TC 78273000 NO FAULTS FOUND.
NR 2 START VALVE OPEN LIGHT REMAINED ILLUMINATED AFTER ENGINE START. ACFT GROUNDED. PERFORMED ENGINE NORMAL START PROCEDURE IAW 71-00-00. ALL OPS NORMAL, ACFT OK FOR SERVICE, IAW ENGINEERING REQUEST, REPLACED NR 2 START VALVE IAW AMM 80-11-03-000-801-F00. OPS CHECKED GOOD IAW AMM 71-00-00-800-811-FOO.
"WINDOW HEAT LT SIDE ACFT" BREAKER APPEARS TO BE BROKEN- NOT POPPED, JUST BROKEN. ACFT GROUNDED. REPLACED CB C225, REF WDM 30-41-12, PG 2.1, SHEET 2 AND SWPM 20-30-00, TABLE 10. WINDOW HEAT OPS TEST GOOD IAW MM 30-41-00.
NR 2 ENGINE FIRE HANDLE DOES NOT ILLUMINATE DURING TEST IN NORMAL, BUT LIGHTS WHEN SELECTED TO A. ACFT GROUNDED. OPENED NR 2 ENGINE FAN AND DUCT COWLING. INSPECTED ALL B LOOP FIRE DETECTORS AND FOUND DETECTOR MW0326 AT LT SIDE ENGINE CORE WITH AN IMPROPER CRIMPED TERMINAL. INSTALLED NEW TERMINAL END REF MM 26-11-02-960-801 AND WD 26-11-11. PERFORMED NR 2 ENG FIRE TEST REF 26-11-00-710-801. SYS CKS NORMAL.
SATCOM LOCKED UP ON GROUND, ACFT GROUNDED. SATCOM CHECKLIST ACCOMPLISHED, NORMAL OPS RESTORED.
COWL ANTI-ICE LIGHT ILLUMINATED AFTER LANDING, TAXI IN, AND NR 2 ENGINE. SHUTDOWN ENGINE AND COWL ANTI-ICE REMAINED ILLUMINATED, COMPLETED QRH CHECKLIST. ACFT GROUNDED. OPEN
NR 2 ENGINE OVERHEAT LIGHT ILLUMINATED. PERFORMED QRH PROCEDURE, LIGHT STAYED ON. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT, NR 2 ENG FIRE DETECTION OPS NORMAL IAW MM 26-11-00. DUE TO HISTORY, R & R UPPER FAN DETECTOR ASSY, IAW MM 26-11-01. REPLACED LOWER FAN DETECTOR LOOP NR 2 ENGINE AMM 26-11-01. GROUND VERIFICATION TEST PASSED IAW MM 26-11-00.
AUTOTHROTTLE ARM LIGHT INOPERATIVE. ACFT GROUNDED. ACCOMPLISHED AUTOTHROTTLE SYS OPS TEST REF AMM TASK 22-31-00-710-801. AUTOTHROTTLE ARM LIGHT OPERATED NORMAL. COULD NOT DUPLICATE. PERFORMED LWMP AUTOTHROTTLE OPS TEST IAW 22-31-00/501. TEST PASSED. ACFT REMAINS QUALIFIED FOR CAT IIIA AUTOLAND AND HGS OPS AND STATUS PLACARD RELECTS SAME.
FMC DATALINK FULL MESSAGE APPEARED. ACFT GROUNDED. PERFORMED QRH PROCEDURE, OPS NORMAL.
NR 2 ENGINE OVERHEAT ILLUMINATED AFTER STARTING AND STABLIZED NO HOT START THE OVER HEAT LIGHT REMAINED ON FOR TWO MINUTES AND 53 SECS. ACFT GROUNDED. CLEANED ALL TERMINAL GROUND LUGS ON A AND B FIRE LOOPS ON NR 2 ENG IAW POWER PLANT BUILDUP MANUAL 71-00-02 AND MM 26-11-01-000-802. PERFORMED BITE TEST ON FIRE DETECTION MODULE PASSED. RAN ENG AT TAKEOFF POWER FOR 5 MIN AFTER POWER RUN 3 MIN LATER OVERHEAT LIGHT ILLUMINATED BITE TEST ON BOX FAILED. RANG LOOP A AND B NR 2 ENGINE IAW FIM 26-10, TASK 810, ALL LOOPS WITHIN LIMITS. RANG OUT WIRES FROM DP98 TO DP1510 AND DP1610 NO DEFECTS NOTED WDM 26-11-21,26-11-11. RAN ENGINE IDLE AND HI-PWR, UNABLE TO DUPLICATE DEFECT. R & R M279 CONTROL MODULE REF AMM 26-10-01 ACCOMPLISHED ENGINE FIRE SWITCH SYSTEM SHUTDOWN TEST IAW AMM 26-21-00-720-802 FOR THE NR 1 & NR 2 ENGINE, OPS TEST NORMAL. ACCOMPLISHED NR 1 & NR 2 ENGINE FIRE EXTINGUISHING BOTTLE SQUIB CIRCUIT TEST REF AMM 26-21-00-730-801, OPS TEST NORMAL. NR 2 ENG, OPS CK NORMAL ON ENGINE RUN.
NR 1 ENGINE FUEL HEATER, SERVO, UPPER GASKET AT FWD LT CORNER LEAKING FUEL, ACTIVE SPRAY. ACFT GROUNDED. REMOVED NR 1 ENGINE FUEL HEATER SERVO. INSTALLED NEW FUEL HEATER SERVO IAW AMM 73-11-07-400-801-F00 UP TO PAR 3(3) STEP (E). COMPLETED SERVO HEATER INSTALLATION & SYSTEM REACTIVATION I.A.W. MM 73-11-07-400-801-F00. SERVO HEATER GROUND VERIFICATION INSTALLATION TEST SUCCESSFUL IAW MM 71-00-00-800-811-F00, TABLE 502.
NO SATCOM PROMPT ON GROUND. ACFT GROUNDED. ACCOMPLISHED SATCOM GROUND LOCK-UP QRH PROCEDURE SATCOM PROMPT WAS RESTORED.
WHILE PERF T/C 78273000 FOUND NR 1 ENG FAULT MSG 75-20371 "SHORT TIME" FAULT, HMU VSV CONTROL CURRENT OUT-OF-RANGE. ACFT GROUNDED. BASED ON FINDINGS: REPLACED AND TESTED NR 1 ENG EEC IAW MM 73-21-60-400-801-F00. TESTS PASSED, INCLUDING FIM REPAIR CONFIRMATION.
OVERHEAD ELECTRICAL LIGHT CAME ON AFTER GROUND POWER DROPPED OFF A COUPLE TIMES. ACFT GROUNDED. PERFORMED FIM 24-31, TASK 801, BITE SHOWS SPOOL FAULT BUT ELECTRICAL LIGHT REMAINS. PERFORMED FIM 24-34 TASK 801 FAULT CLEARED BITE SHOWS NO FAULT. ELECTRICAL LIGHT EXTINGUISHED, OK FOR SERVICE.
DURING TAXI OUT, RECEIVED AN FMC DISAGREE MESSAGE. ACFT GROUNDED. PERFORMED QRH PROCEDURE. MESSAGE CLEARED.
NR 2 ENGINE OVERHEAT ILLUMINATED. ACFT GROUNDED. BITE CHECKED ENGINE/APU FIRE DETECTOR MODULE, NO FAULTS LOGGED. GVI ENGINE AND DUCT, NO DEFECTS NOTED. INSPECTED FIRE/OVERHEAT DETECTOR CONNECTIONS. FOUND LOWER AFT GROUND CONNECTION DIRTY. CLEANED AND SECURED ALL CONNECTIONS. IAW AMM 26-11-01-400-801 RAN ENGINE, CHECKS NORMAL, IAW 26-11-00-710-801.
DURING NR 2 ENGINE START, OVERHEAT LIGHT ILLUMINATED EGT WAS NORMAL. OUTSIDE TEMP 100 DEGREE LIGHT WENT OUT ON SHUTDOWN, MOTORED ENGINE AND LIGHT CAME BACK ON. ACFT GROUNDED. PERFORMED ENG/APU FIRE DETECTION CONTROL MODULE BITE PROCEDURE NO FAULTS NOTED. REF FIM TASK 26-10, TASK 801. PERFORMED ENGINE AND APU-LOOP POWER-FAULT ISOLATION NO FAULTS OR DEFECTS NOTED,ALT DEACTIVATION PROCEDURE USED IAW CHAP 5, TABLE 3, ITEM 3, 4. OPEN ENGINE 2 INSPECTED ALL FIRE LOOPS AND ATTACHMENTS, NO DEFECTS. NO LEAKS NOTED DURING MOTORING. RAN NR 2 ENGINE OPS CK GOOD NO DEFECTS NOTED. FIRE DETECTOR MODULE BITE CHECKED GOOD. REPLACED NR 2 ENGINE LEFT CORE FIRE DETECTOR ASSY IAW MM 28-11-01-00-802. ENGINE FIRE DETECTION SYSTEM OPS TEST PASSED. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.
NR 2 ENGINE START, ENGINE OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. R & R FIRE-OVERHEAT CONTROL MODULE IAW FIM TASK 26-10-01-400-801. OPTS CK IAW FIM 26-11-00-710-801 & FIM TASK 26-15-00-701-801. OPTS CK OK.
SATCOM LOCKED UP ON GROUND. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED. SATCOM PROMPT ON FMC MENU REGAINED.
SATCOM INOPERATIVE. ACFT GROUNDED. SATCOM PROMPT PRESENT ON MCDU. PERFORMED SATCOM COMMUNICATIONS TEST IAW AMM 23-15-00-730-801, ALL TESTS PASS. NO HISTORY LAST 30 DAYS.
AUTO FAIL AND ACTN LIGHTS ARE ILLUMINATED ON PRESSURIZATION PANEL. ACFT GROUNDED. CYCLED CONTROL SWITCH TO MANUAL AND BACK, LIGHTS WENT OUT. PERFORMED AUTO FAIL LIGHT ON FAULT ISOLATION IAW FIM 21-31, TASK 827 AND BITE TEST FIM 21-31, TASK 801. NO CURRENT FAULTS. PERFORMED GROUND VERIFICATION OF AUTO CONTROLLERS. BOTH SYSTEMS OK.
RIGHT PACK LIGHT ILLUMINATED. ACFT GROUNDED. FOUND RT RAM AIR DOOR LINKAGE DRIVE AND ARM ASSY DEFECTIVE. R & R RT RAM AIR DOOR LINKAGE DRIVE AND ARM ASSY. OPS CK NORMAL REF AMM 21-51-22.
FOUND NR 6 AFT ACOUSTICAL PANEL FWD INBD FASTENER ATTACHMENT DAMAGED. ACFT GROUNDED. INSTALLED NEW NR 6 AFT ACOUSTICAL PANEL ON NR 2 ENGINE IAW AMM TASK 72-23-02-400-801-F00.
NR 2 ENGINE INLET AND FAN BLADES, DETAIL INSPECTION FOUND NR 5 STRUT PANEL LT MIDDLE FASTENER ATTACHMENT DAMAGED. ACFT GROUNDED. R & R STRUT PANEL ON NR 2 ENGINE IAW AMM 72-23-07.
NR 1 ENGINE REAR TURBINE AFT FLANGE ASSY INTERMEDIATE HOLES ARE CRACKED AT SEVERAL LOCATIONS. ACFT GROUNDED. REMOVED PLUG ASSY & AFT FLANGE ASSY, INSTALLED NEW AFT FLANGE ASSY IAW MM 72-56-00-400 3.F 2 & 3. REINSTALLED PLUG ASSY IAW MM 78-11-02-400.
NR 2 ENGINE REAR TURBINE AFT FLANGE ASSY CRACKED AT SEVERAL LOCATIONS. ACFT GROUNDED. REMOVED PLUG ASSY & AFT FLANGE ASSY, INSTALLED NEW AFT FLANGE ASSY IAW MM 72-56-00-400, 3.F.2 & 3. REINSTALLED PLUG ASSY IAW MM 78-11-02-400.
ON HF/SAT SELECT PANEL ON CENTER CONSOLE HF/SAT TRANSFER HF 1 SELECT BUTTON LIGHT INOPERATIVE. ACFT GROUNDED. PERFORMED MASTER DIM AND LIGHT TEST REF AMM 33-18-00-710-802 AND OPERATED HF/SAT TRANSFER 1 & 2 SELECTOR BUTTON OPS CHECK GOOD UNABLE TO DUPLICATE.
RIGHT PACK LIGHT ILLUMINATED. QRH PROCEDURE COMPLIED WITH. PACK LIGHT EXTINGUISHED ON RESET. NO OPS RESTORED. ACFT GROUNDED. BITE CHECKED RT PACK-ZONE TEMP CONTROLLER, NO FAULTS NOTED NO HISTORY PAST 30 DAYS. OK FOR SERVICE.
APU START SWITCH TO STRT EGT BEGAN TO RISE THEN APU FAULT LIGHT ILLUMINATED AND APU SHUTDOWN. ACFT GROUNDED. ACCOMPLISHED BITE CHECK, VERIFIED IN FAULT HISTORY MAINT MSG 49-41012. NO APU ROTATION SHUTDOWN. INSPECTED MAGNETIC DRAIN PLUG, NO CONTAMINATION NOTED. RAN APU, OPS CHECK NORMAL. FAULT CLEARED REF FIM TASK 49-40, TASK 803.
AT FL330, WINDSHIELD HEAT CIRCUIT BREAKER TRIPPED. OVERHEAT LIGHT FOR RT SIDE CAME ON. R2 WINDOW DID NOT FEEL OVERHEATED. CIRCUIT BREAKER ALSO DID NOT FEEL HOT. ACFT GROUNDED. INSPECTED CIRCUIT BREAKER, NO LOOSE CONNECTIONS OR DISCOLORATION FOUND. RESET CIRCUIT BREAKER. PERFORMED FIM TASK 30-41, TASK 801. OPS CHECKED OK.
NR 1 ENGINE FAILED TO START, DUE TO NO FUEL FLOW. ENGINE VALVE CLOSED ANNUNCIATOR ILLUMINATED. ACFT GROUNDED. REPLACED LT EXCITER BOX IAW AMM 74-11-01. COMPLETED IGNITION SYS AUDIBLE TEST IAW 74-00-00. OPS CHECKED GOOD IAW AMM 74-11-01.
RT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. PERFORMED QRH PROCEDURES AND OVERHEAT LIGHT ILLUMINATED IMMEDIATELY AFTER SWITCH HAD BEEN IN THE OFF POSITION FOR 5 MINUTES. IN CRUISE, FL400 FOR 3 HRS. SAT -66 DEGREES CENTIGRADE. ACFT GROUNDED. FOUND CIRCUIT BREAKER ON P6-11 PANEL WINDOW HEAT POWER RIGHT SIDE OPEN. RESET CIRCUIT BREAKER IAW MM 20-60-01. PERFORMED WINDOW HEAT SYS OPS TEST REF MM 30-41-00. OPS NORMAL. NO FAULTS NOTED.
AFTER ENGINE START, LEFT PACK ANNUNCIATOR ILLUMINATED. ANNUNCIATOR EXTINGUISHED WHEN MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED PACK-ZONE TEMPERATURE CONTROLLER BITE PROCEDURE FOR NR 1 CONTROLLER, IAW FIM 21-62, TASK 801. TEST PASSED. NO FAULTS NOTED.
15,000 FEET, DURING PACK HIGH FLOW INHIBIT TEST ON LT PACK WITH LT PACK OFF, FLAPS 1 SELECTED CABIN RATE F/O CLIMB DID NOT RATE UP. ACFT GROUNDED. R & R LT FLOW CONTROL VALVE IAW MM 21-51-01, PERFORMED OPS CHECK/LEAK TEST, CHECKED GOOD.
WHEN ENGAGING A AND B AUTOPILOT BOTH YOKES WOULD BUMP AND KICK 1 UNIT LT ON CONTROL WHEEL. ACFT GROUNDED. DFCS LAND VERIFIY GRP 49 FAILS TEST 49.35. DUAL TEST ALL POS FAIL, AIL POS SENSOR 1, MS622.11145. R & R AILERON POSITION SENSOR IAW MM 22-11-29 PERFORMED ADJUSTMENT TEST AND POSITION SENSOR TEST, CHECKED GOOD. PART INFO ON HOLD.
AFT PIT, RT TRANSITION PANEL CORRODED AROUND NUTPLATE HOLES STA 727D-727E. ACFT GROUNDED. R & R RT TRANSITION PANEL FROM STA. 727D-12 TO STA. 767 IAW SRM 53-00-53-2R-5 AND 51-40-02.
AFT PIT, RT TRANSITION PANEL CORRODED AROUND NUTPLATE HOLES, STA 727I - 767. ACFT GROUNDED. R & R RT TRANSITION PANEL FROM STA 727D12 TO 767 IAW SRM 53-00-53-2R-5 AND 51-40-02.
AFT CARGO, LT TRANSITION PANEL C PUNCTURED, BS 727J. ACFT GROUNDED. R & R LT TRANSITION PANEL FROM STA 727-779 IAW SRM 53-00-53-2R-5 AND 51-40-02.
AFT CARGO, LT TRANSITION PANEL CORRODED AROUND NUTPLATE HOLES, BS 747-787. ACFT GROUNDED. R & R LT TRANSITION PANEL FROM STA 727-779 IAW SRM 53-00-53-2R-5 AND 51-40-02.
AFT CARGO TRANSITION PANEL CORRODED BS 727F-727I. ACFT GROUNDED. R & R TRANSITION PANEL IAW SRM 53-00-53-2R-5 AND 51-40-02.
AFT CARGO, LT TRANSITION PANEL CORRODED AROUND NUTPLATE HOLES, STA 727G -727JG. ACFT GROUNDED. R & R LT TRANSITION PANEL FROM STA 727-779 IAW SRM 53-00-53-2R-5 AND 51-40-02.
AFT CARGO, LT TRANSITION PANEL CORRODED AROUND NUTPLATE HOLES, STA 727A -727G. ACFT GROUNDED. R & R LT TRANSITION PANEL FROM STA 727-779 IAW SRM 53-00-53-2R-5 AND 51-40-02.
SEAT TRACK BS 727B, LBL 45.5 INBD FLANGE CRACKED. REPAIRED SEAT TRACK IAW REO-G16953, REV A AND EA 800-57EA-11748.
SINGLE FMC OPERATION WITH F/O FLAGS. ACFT GROUNDED. VERIFIED NR 2 FMC FAILED REF AMM 23-61-00-710-801. REPLACED NR 2 FMC. ETOPS SIGNIFICANT SYS GROUND VERIFICATION COMPLETED SUCCESSFULLY, REF AMM 34-61-02.
F/O FMC FAILED WITH WITH SINGLE FMC OPERATION MESSAGE IN FOS CDU SCRATCH PAD AND VTK AND MAP MESSAGE DISPLAYED ON FOS NAV MAP. CONDUCTED QRH CHECKLIST, UNABLE TO RESTORE. ACFT GROUNDED. REPLACED NR 2 FMC REF MM 34-61-02-400-801.
AUTO THROTTLE INOPERATIVE CIRCUIT BREAKER TRIPPED. ACFT GROUNDED. INSPECTED AND RESET AUTOTHROTTLE CIRCUIT BREAKER IAW MM 20-60-01. SWAPPED FCC A & B WITH NO CHANGE, PUT BACK TO ORIGINAL POSITION AND OPS CHECKED BOTH A & B. CHECKED GOOD IAW MM 22-11-33. ACCOMPLISHED AUTOTHROTTLE SYS OPS TEST ALL PASS REF MM 22-31-00 BREAKER STAYED IN.
DURING ATTEMPTED START OF NR 2 ENGINE, NEGATIVE ROTATION. ACFT GROUNDED. REPLACED NR 2 ENGINE START VALVE IAW AMM 80-11-03. START VALVE OPS CHECKS GOOD.
NR 2 FIRE WARNING SWITCH WILL NOT ILLUMINATE DURING FIRE PROTECTION SYS TEST, DURING PREFLIGHT. ACFT GROUNDED. REPLACED NR 2 ENGINE UPPER FAN LOOP, AMM 26-10-00. TESTS GOOD, AMM 26-11-00.
SATCOM INOPERATIVE, NO CDU DISPLAY PAGES. ACFT GROUNDED. RESET SAT COMM TRANSCEIVER REF FIM 23-15 TASK 801 & GROUND VERIFICATION CK GOOD.
CHANNEL A AND B WHEN ENGAGING AUTOPILOT A LARGE CONTROL BUMP. ALL OTHER AUTOPILOT FUNCTIONS NORMAL. ACFT GROUNDED. PERFORMED PREV FLIGHT FAULT REVIEW, CURRENT STATUS & DFCS LAND VERIFY TEST ALL IAW AMM 22-11-00. ALL OPS NORMAL, NO DEFECTS NOTED. A/P A & B BOTH ENGAGE AND OPERATE SMOOTHLY. NO HISTORY CHAPTERS 22 & 27 LAST 30 DAYS. ETOPS SIGNIFICENT SYS GROUND VERIFICATION SUCCESSFUL.
PRIOR TO DESCENT ENGINE ANTI-ICE TURNED ON AND OPERATED NORMALLY. WHEN THRUST REDUCED FOR DESCENT FROM FL 380, NR 2 ENG ANTI-ICE LT CAME ON BRIGHT BLUE. REMAINED ON UNTIL POWER ADVANCED AT 6,000 FT, THEN EXTINGUISHED FOR REST OF FLIGHT THROUGH LANDING. ACFT GROUNDED. REMOVED NR 2 ENG COWL TAI VALVE REF AMM 30-21-11-000-801. INSTALLED A NEW NR 2 ENG COWL TAI VALVE REF AMM 30-21-11-400-801. OPS CK GOOD REF, AMM 30-21-00-710-801.
NR 2 ENGINE ANTI-ICE COWL VALVE OPEN LIGHT STAYS BRIGHT WHEN ANTI-ICE ON. GOES OUT WHEN ANTI-ICE OFF. ACFT GROUNDED. PERFORMED OPS CHECK OF NR 2 ANTI-ICE COWL VALVE AND FOUND IT TO BE OPERATING NORMAL, NO DEFAULTS & NO HISTORY. PERFORMED OPS CHECK OF NR 1 ENG ANTI-ICE COWL VALVE AND FOUND IT INOP. PERFORMED FIM TASK 30-21 TASK 805. NR 1 ANTI-ICE COWL VALVE STARTED WORKING NORMALLY. OPERATED BOTH NR 1 & NR 2 ANTI-ICE COWL VALVE WITH NO DEFAULTS. COWL VALVE LIGHT OPERATES NORMAL. POSSIBLE INTERMITTENT FAULT. OPS CHECKS NORMAL, NO HISTORY 30 DAYS.
FMC DISAGREE FAULT, ACFT GROUNDED. RESET IAW QRH.
ON PREFLIGHT, BOTH PACK LIGHTS AND ALL 3 ZONE TEMP LIGHTS ARE ILLUMINATED. APU IS RUNNING AND SUPPLYING BLEED AIR. ACFT GROUNDED. FOUND CIRCUIT BREAKER HOT AND TRIPPED. INSPECTED BREAKER AREA, NO DEFECT NOTED. RESET CIRCUIT BREAKER IAW AMM 20-60-01. PFM DC SYS TEST IAW AMM 24-31-00. NO DEFECT NOTED CIRCUIT BREAKER REARMED IN. ACFT OK FOR SERVICE.
FMC DISAGREE ANNUNCIATED DURING TAXI OUT. ACFT GROUNDED. NORMAL OPERATIONS RESTORED AFTER COMPLETION OF QRH PROCEDURE.
ON TAXI OUT AUTOTHROTTLE DISCONNECTED AND WOULD NOT RECONNECT. ACFT GROUNDED. ACCOMPLISHED FIMS 22-31T801 & 22-31T802 AND A/T SYS OPS REF MM 22-31-00. NO DEFECTS NOTED.
FUELER REPORT REFUEL CENTER QTY IND INOPERATIVE. ACFT GROUNDED. REPLACED CENTER REFUEL QTY IND IAW AMM 28-41-61/401. PART VERIFIED SEAMC PAT. REFUEL QTY IND OPS TEST NORMAL.
ON TAXI OUT, LEFT NAV WOULD NOT ARM. ACFT GROUNDED. ACCOMPLISHED FLT FAULT REVIEW, GRP BITE 10, NO FAULTS LOGGED. ACCOMPLISHED FLT DIRECTOR TEST, GRP BITE 12, ALL TEST PASSED. ACCOMPLISHED LAND VERIFY TEST, GRP BITE 49, ALL TEST PASSED REF MM 22-00-01. ACFT REMAINS CATIII A, AUTOLAND AND HGS, SCREW REFLECT SAME. NO HISTORY 90 DAYS.
LIGHT ILLUMINATED ON ELECTRICAL PANEL AFTER GROUND POWER KICKED OFF. ACFT GROUNDED. ACCOMPLISHED FIM 24-31-801 ELEC LIGHT ILLUMINATED FAULT ISOLATION PROCEEDURE - SPCU FAULT DISPLAYED.ACCOMPLISHED FIM 24-34-802 , FAULT CLEARED WITH NO FURTHER DISCREPANCIES. NO HISTORY LAST 60 DAYS
AUTOTHROTTLE DISENGAGED ON CLIMB OUT WITH ACCOMPANING RED AUTOTHROTTLE LIGHT. QRH ACCOMPLISHED. AUTOTHROTTLE WOULD NOT STAY ENGAGED. ACFT GROUNDED. CONFIRMED FAULT, AUTOTHROTTLE BITE FAILS ASM NR 1. REPLACED NR 1 AUTOTHROTTLE ASM REF AMM TASK 22-31-91, OPS CK NORMAL, REF AMM 22-31-00/501.
FMC DISAGREE ON GROUND. ACFT GROUNDED. QRH PROCEDURE RUN, LIGHT WENT OUT.
AUTO THROTTLE SWITCH WILL NOT ENGAGE. ACFT GROUNDED. PERFORMED AUTOTHROTTLE SERVO TEST NUMEROUS TIME IAW AMM REF 22-31-00-710-802, PASSES EVERY TIME. CURRENT STATUS SHOWS NO FAULTS. THE LEG SHOWING 75 FAULTS INDICATES ALL FAULTS WERE ON GROUND, PILOT DEFECT REPORT DID NOT INDICATE ANY OTHER SYS OR CONFIGURATION OF ACFT. NO HISTORY LAST 30 DAYS.
NR 1 ENGINE FAN BLADE SHIMS WORN. ACFT GROUNDED. R & R TWENTY FOUR FAN BLADE SHIMS REF T/C 78472002.
CREW REPORT EMERGENCY LIGHT LENS COVER AT L1 DOOR FELL OFF. FOUND PIN BAD ON LENS COVER REPLACED WITH SERVICABLE LENS COVER.
FMC NR2, INOPERATIVE FFR SHOWED NUMEROUS OCCURRENCES OF FMC DATA FAIL. ACFT GROUNDED. PERFORMED FMCS SYS BITE PROCEDURE REF FIM 34-61, TASK 801. INFLIGHT FAULTS SHOWED FMC FAULTS ONLY ON FLIGHT, LEG 5. PERFORMED FMCS OPS TEST REF MM34-61-00. TEST PASSED. SENSOR TEST SHOWED NO CURRENT FAULTS, FMCS OK.
DURING CLIMBOUT DUCT PRESS LT 25, RT 45. AFTER LEVEL OFF LT DUCT PRESSURE STABILIZED TO 33 PSI. TOP OF DESCENT LT & RT DUCT EVEN AT 48. ACCOMPLISHED T/C NG-36WC-00001, BLEED SYS HEALTH CHECK. PRECOOLER VALVE FAILED, AND PRSOV FAILED TEST, NO OTHER DISCREPANCIES NOTED. R & R PRECOOLER VALVE REF MM 36-12-02, AND PRSOV REF MM 36-11-04. ACCOMPLISHED GROUND VERIFICATION WITH 2 MIN HIGH POWER RUN, AND BLEED SCHEDULE MM 36-00-00. NO DEFECTS NOTED.
LEFT PACK LIGHT ON RECALL. ACCOMP PACK/ZONE TEMP CONT BITE CK ON NR 1 CONTROLLER. RECORDED RAM AIR ACTUATOR FAULT AS AN ACTIVE FAULT REF MM 21-61-00. REPLACED LT RAM AIR ACTUATOR OPS NORMAL REF MM 21-51-21. RE-ACCOMP PACK/ZONE TEMP CONT BITE CK ON NR 1 CONTROLLER NO FAULTS NOTED, OK FOR SVC.
DURING T/O AUTOTHROTTLES DISENGAGED AND WOULD NOT STAY ENGAGED FOR MORE THAN 5 SEC QRH RUN. INFLIGHT FAULTS LOGGED ASM1 LEG 9, ACCOMPLISHED CURRENT STATUS TEST REF MM 22-31-00, TEST PASSED. SERVO MOTOR TEST PASSED REF SAME. NO HISTORY PAST 30 DAYS.
DURING CRUISE RT SIDE WINDOW HEAT OVERHEAT LIGHT LIGHT ILLUMINATED, PERFORMED QHR AND TURNED SWITCH OFF FOR 4 MINUTES. TURNED SWITCH ON , OVERHEAT LIGHT ILLUMINATED, TURNED SWITCH OFF. RESET C/B C 393 WINDOW HEAT POWER RT SIDE IAW MM 20-60-01, RT FLT DECK SLIDING WINDOW HEAT GROUND VERIFICATION TEST. OPS CKS NORMAL IAW 30-41-00-710-801.
LEFT PACK LIGHT ILLUMINATED ON LANDING RECALL. ACCOMPLISHED TEMP CONTROLLER BITE REF FIM 21-62 TASK 801. FOUND RAM DOOR FAULT STORED IN MEMORY. PASSED VERIFY TEST & RESET FAULT. OPS NORMAL REF SAME.
CONT CAB ZONE TEMP ILLUMINATES ON RECALL & EXTINGUISHED ON RESET. VERIFIED FAULT FOR CABIN RECALL. ACCOMPLISHED PACK/ ZONE TEMP CONT BITE NR 1 CONT NO FAULTS. NR 2 CONT FAULTED FLT DECK TRIM VALVE (V143). CLEARED FAULT, ACCOMPLISHED CABIN TEMP CONT & IND OPS TEST, TEST PASSES. RAN PACKS FOR 90 MIN. NO FAULTS. GROUND TEST PASS. NO HISTORY. REF MM 21-61-00-700-807-002 & 21-61-00-700-806-002.
CARGO FIRE/ SMOKE DETECT TEST FAILED. A LOOP FAILED. B LOOP TESTED GOOD. TESTED THE SYS FOUND AFT CARGO BAY A3 SMOKE DETECTOR INOPERATIVE. REPLACED A3 SMOKE DETECTOR, OPS CHECKED NORMAL, NO FAULT AT THIS TIME, REF MM 26-16-01.
CARGO FIRE AFT LOOP A WILL NOT TEST. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT, ACCOMPLISHED CARGO FIRE TEST REF MM 26-16-00, TEST PASSED. ACCOMPLISHED TEST SEVERAL TIMES. CEU DOES NOT LOG ANY DETECTOR FAULTS DURING TEST. NO HISTORY PAST 30 DAYS.
NR 2 ENGINE, NR 1 FAN DUCT PANEL HAS CAPTIVE BOLT LOOSE AND PULLED THRU PANEL. REMOVED PANEL IAW AMM 72-23-07-000-801-F00. INSTALLED NEW PANEL IAW AMM 72-23-07-400-801-F00.
AFT CARGO FIRE TEST LOOP A INOPERATIVE. REPLACED A1 SMOKE DETECTOR. OPS CHECKED GOOD. REF AMM 26-26-02.
DURING CRUISE AT FL250, ENCOUNTERED ICING CONDITIONS. SELECTED WING AND ENGINE ANTI ICE ON. RT BLEED TRIP OFF LIGHT ILLUMINATED. USED QRH PROCEDURE, BLEED TRIP RESET, WITH WING ANTI ICE SWITCH OFF. ACCOMPLISHED T/C NG-36WC-00001 ENGINE BLEED AIR SYS HEALTH CHECK, NR 2 ENGINE PRECOOLER CONTROL VALVE & HIGH STAGE REGULATOR FAILS HEALTH CHECK. REPLACED PRECOOLER CONTROL VALVE REF AMM 36-12-02-000-801/-400-801. OPS & LEAK CHECK GOOD. REPLACED HIGH STAGE REGULATOR REF AMM 36-11-07-000-801/-400-801. OPS & LEAK CHECK GOOD. NO OTHER DEFECTS NOTED. ALL SENSE LINES LEAK CHECKED GOOD. REPAIR CONFIRMATION CHECK GOOD REF AMM 36-10-TASK 801 AND ENGINE BLEED AIR CROSSOVER OPS CHECK GOOD REF AMM 36-11-00-710-801.
AFT CARGO FIRE DET LOOP A INOPERATIVE. CLEANED AFT PIT CARGO SMOKE DETECTORS IAW AMM 26-16-01. OPS NORMAL IAW AMM 26-16-00. GROUND VERIFICATION SUCCESSFUL.
FWD ENTRY EMERGENCY LIGHT INOP. COVER MISSING. ACFT GROUNDED. R & R BULB INSTALLED NEW COVER, OPS CHECK GOOD.
LEFT FORWARD WINDSCREEN HEAT INOPERATIVE. CIRCUIT BREAKER TRIPPED. VISUAL INSPECTION OF WINDOW, & AT L1 CONTROLLER RACK, CHECKED GOOD. TRANSFORMER TAP TO WINDOW RES MATCH. L1 WINDOW HEAT POWER CIRCUIT BREAKER RESET NORMALLY & STAYS IN. OPS CHECKED SAME WINDOW HEAT GOOD. REF MM 30-41-00 & FIM 30-41/T801. GROUND VERIFICATION TESTED GOOD.
RIGHT WINDOW HEAT, OVERHEAT LIGHT ILLUMINATED. QRH PROCEDURES COMPLIED WITH. FAULT CODE 30402042. FOUND RT SIDE WINDOW HEAT POWER CIRCUIT BREAKER TRIPPED. RESET CIRCUIT BREAKER IAW AMM 20-60-01. WINDOW HEAT SYS OPS CHECKED GOOD IAW MM 30-41-00. GROUND VERIFICATION SUCCESSFUL.
NR 1 IDG DPI IS POPPED SECOND NUISANCE FAULT. FMC CDU TC 78273000 C/W NO FAULTS FOUND. C/W FIM TASK 24-11-00-810-803, T/C 78424000 C/W RESET DPI RAN ENGINE OPS & LEAK CHECKED GOOD. REMOVED NR 2 ON DECAL COUNTER OK FOR SERVICE.
AUTO THROTTLE INOPERATIVE. COULD NOT DUPLICATE. AUTOTHROTTLE FAULT LOGGED RATE MONITOR FAULT NR 22-31687 LAST FLT. ACCOMPLISHED FIM 22-32/819, AUTO THROTTLE CURRENT STATUS CHECKED NORMAL. ALSO ACCOMPLISHED SEVERAL TIMES SERVO MOTOR TEST REF MM22-31-00 STEP 1, TEST NORMAL.
AUTOTHROTTLES WILL NOT STAY ENGAGED. CONSTANTLY CLICKED OFF, T/O CLIMB & CRUISE. UNABLE TO DUPLICATE. AUTOTHROTTLES OPS TESTED GOOD REF MM 22-31-00. SERVO MOTOR TEST OPS NORMAL REF SYS TEST 22-31-00, STEP I. NO FAULTS.
EMERGENCY LIGHTING SYSTEM, LENS COVER AT OVERWING EXIT RT AFT MISSING. REPLACED EMERGENCY LIGHTING LENS COVER AR OVERWING EXIT RIGHT AFT REF AMM 33-51-01.
AUTOTHROTTLE WILL NOT STAY ENGAGED. IT ENGAGES FOR 3-4 SECONDS, THEN DISENGAGES. NUMEROUS ASM NR 1 FAULTS LOGGED. SERVO MOTOR TEST FAILED NR 1, ASM MSG 22-31794. R & R NR 1 ASM REF MM 22-31-91, OPS CHECKED NORMAL. ACFT REMAINS CATIIIA AUTOLAND & HGS, VERIFIED STATUS SCREW POSITION.
NR 2 ENG FAN DUCT PANELS AT 500 AND 700 POSITIONS HAVE 1 EA LOOSE BOLT IAW PANEL. ACFT GROUNDED. SECURED LOOSE FASTENERS AS REQUIRED REF MM 72-23-07. NO DISCREPENCIES NOTED.
NR 2 ENGINE FIRE LIGHT AND ENGINE OVERHEAT LIGHT FAILED TEST. PERFORMED BITE PROCEDURE ON ENGINE & APU FIRE DETECTION CONTROL MODULE.0 NR 2 LOOP B AMBER LIGHT DID NOT COME ON DURING BITE TEST, ALSO NOTE NO FAULTS LIGHTS DURING TEST. ACCOMPLISHED DVI OF NR 2 FIRE LOOP DETECTORS. FOUND UPPER FAN FIRE DETECTOR B LOOP HARNESS TERMINAL BROKEN OFF. REPLACED TERMINAL LUG AT M1757 UPPER FAN (B-LOOP) REF AMM TASK 26-11-02-960-801, ADJUSTED UPPER ADEL CLAMP & TOOK OUT SLACK, OPS CHECKED NORMAL.
ON TAXIOUT OGG FMC DISAGREE LT ILLUMINATED. PERFORMED QRH AND ALL OPS NORMAL.
DURING WALKAROUND FOUND NR 2 IDG DRIVE NOT ILLUMINATED AT SHUTDOWN. ACCOMPLISHED GCU BITE CHECK REF MM 24-21-00 NO FAULTS FOUND. R & R NR 2 ENGINE IDG ASSY REF M/M 24-11-11-400-801. OPS AND LEAK CHECKED GOOD.
AUTOTHROTTLES WILL NOT STAY ENGAGED FOR MORE THAN 5 SECONDS AND THE THEY DISENGAGE. FOR THE 5 SECS THEY ARE ENGAGED THE THROTTLES ARE SPLIT. NO OTHER ABNORMALITIES WERE NOTED ON ANY FMC OR OTHER ACFT INSTRUMENTS. ALL CIRCUIT BREAKERS WERE CHECKED ALSO. ACFT GROUNDED. VERIFIED DISCREPANCY. A/T LOGGED SEVERAL "ASM 1" FAULTS. REPLACED NR 1 AUTOTHROTTLE SERVO MOTOR REF MM 22-31-91. INSTALLATION TEST NORMAL, REF MM 22-31-91.
ON GROUND, FMC DISAGREE LIGHT. ACCOMPLISHED QRH PROCEDURE. NORMAL OPS.
AUTO THROTTLE FAILED DURING TAKEOFF. COULD NOT RE-ENGAGE. ACFT GROUNDED. NO HISTORY. NR 1 SERVO MOTOR FAILED TEST. PULLED AND RESET THE AUTOTHROTTLE DC CIRCUIT BREAKER. AUTOTHROTTLE SYS OPS CKS NORMAL IAW 22-31-00-710-801. AUTOTHROTTLE SERVO MOTOR TEST, OPS CKS NORMAL IAW 22-31-00-710-802. PAR I.
AUTO THROTTLE DOES NOT FUNCTION. AUTO THROTTLE WILL ENGAGE ON BUT WHEN AUTO THROTTLE MOVEMENT IS COMMANDED, IT APPEARS AS THOUGH THE RT THROTTLE MOVES AND THE LT THROTTLE DOES NOT, CAUSING THE AUTO THROTTLE SWITCH TO TRIP OFF AND DISENGAGE (NON ETOPS AIRSPACE). GROUNDED. PERFORMED 10 AUTOTHROTTLE TESTS IAW AMM 22-31-00-710-801 "AUTOTHROTTLE OPERATIONAL TEST" AND AMM 22-31-00-710-802 "AUTOTHROTTLE SYSTEM TEST". NO FAULTS WERE INDICATED.
LEFT PACK LIGHT ILLUMINATED ON RECALL EXTINGUISHED AFTER PUSHING MASTER CAUTION RESET. FOUND TCV FAULT IN NR 1 PACK/ZONE TEMP CONTROLLER. REMOVED & REPLACED LT TCV REF AMM 21 51 10. OPS & LEAK CHECKED GOOD.
NR 2 ENGINE FILTER BYPASS LIGHT ILLUMINATED DURING CLIMBOUT AND REMAINED ON. PERFORMED FIM TASK 73-05-00-810-801-F00 TO SLUPS 4 CONF FILTER BYPASS SWITCH DEFECTIVE. REPLACED FUEL FLTR NR 2 ENG PER AMM 73-11-02-400-801. NO DEBRIS. REPLACED SWITCH PER AMM 73-34-01-000-801-F00 PERFORMED IDLE PWR LEAK CHECK PER AMM 71-00-00-700-801-F00, NO LEAKS NOTED. PERFORMED EEC BITE CHECK GRND TEST 73-21-00-700-804-F00, GOOD.
THE AUTOTHROTTLE DISENGAGED IN FLIGHT AND WOULD NOT RE-ENGAGE. ACCOMPLISHED AUTOTHROTTLE BIT PER FIM TASK 22 31 00 810 801. LEG 03 LOGGED FOUR INSTANCES OF MSG 22 31687. ACCOMPLISHED FIM TASK 22 32 00 810 819 FOR MSG 22 31687 ASM 1. TORQUE AND SERVO MOTOR TEST PASSED. ACCOMPLISHED AUTOTHROTTLE OPERATIONAL TEST PER AMM TASK 22 31 00 710 801. TEST PASSED.
UPON PREFLIGHT FOUND FIRE DETECTION LOOP B INOP ON NR 2 ENGINE. DUPLICATED FAULT HARD FAIL NR 2 ENG B LOOP FIRE LOOP. M279 ENG/APU FIRE OVHT DET CONTROL MODULE BITE SHOWS OPEN CKT/BAD DETECTOR (3 RED LIGHTS). CHECKED ALL 4 DETECTORS RESISTANCES ALL CHECKED GOOD. FOUND HARNESS (MW0316) RESISTANCE BETWEEN UPPR FAN DET (M1757) & LWR FAN DET (M1758) READ 2K OHMS. FURTHER TROUBLESHOOTING FOUND BROKEN TERMINAL LUG AT UPPR FAN B LOOP DET (M1757) RE-TERMINATED LUG. NR 2 ENGINE B LOOP FIRE DET OPS CHECK NORMAL REF AMM TASK 26 11 00.
NR 1 ENG SEVERAL FASTENERS LOOSE ON FAN FRAME ACOUSTICAL PNLS LEFT SIDE. SECURED FASTENERS NR 1 ENG ON FAN FRAME ACOUSTICAL PNL LEFT SIDE REF AMM 72 23 07.
NR 1 ENG FAN DUCT PNL LOOSE FASTENERS AT 7 O'CLOCK POSITION VEIW AFT LOOKING FWD. SECURED FASTENERS NR 1 ENG FAN DUCT PNL AT 7 O'CLOCK POS VEIW AFT LOOKING FWD REF AMM 72 23 07.
NR 1 ENG INLET COWL HAS FASTENER LOOSE AT 6 O'CLOCK POSITION LOOKING INTO FAN. ON DEFERRAL.
WHILE PERFORMING T/C N2471001 FOUND LOUVER MISSING ON RT COWL THERMAL ANTI ICE DUCT. ON DEFERRAL. REMOVED AND REPLACED COWL THERMAL ANTI ICE DUCT PER CMM 71 11 22.
FMC DISAGREE ON GROUND. ACCOMPLISHED QRH PROCEDURE. OPS NORMAL.
CABIN ZONE LIGHT ILLUMINATED ON RECALL. EXTINGUISHES WHEN MASTER CAUTION PRESSED. REPLACED ZONE TRIM MODULATING VALVE (FLT DECK) REF AMM 21-61-21-400-801.
AT 15 000 FT 71% N ENG VIB INDICATES .4 ON NR 1 .2 ON NR 2. TACTILE VIBRATION FELT IN RUDDER PEDALS PILOT SEATS FLOOR AND THROTTLES. ENG NR 1 THROTTLE VIBRATES THE MOST. VIBRATION FELT FROM 71.7 TO 69.3 NI. WITH ENG NR 1 SET AT 73 PERECENT AND ENG NR 1 THROTTLE MOVED FROM 72 TO 69 PERCENT VIBRATION IS FELT. WHEN NR 1 ENG SET TO 73 PERCENT AND ENG NR 2 MOVED FROM 72 TO 68 PERCENT NI NO VIBRATION. VIBS LESS AT HIGHER ALTITUDES IN SAME RANGE. REPLACED NR 1 ENG. FUEL PUMP PACKAGE IAW B737NG AMM 73 11 01 400 801 F00. LEAK CHK AND OPS CHK GOOD IAW TEST REQUIRED FOR FUEL PUMP PACKAGE INSTALLATION LISTED IN AMM B737NG 71 00 00 800 811 F00. FCF UNSATISFACTORY. PERF NR 1 ENGINE FAN TRIM BALANCE ON BOARD PROCEDURE IAW B737NG MM 71 00 00.
CONTROL CABIN ZONE TEMP ILLUMINATED ON MASTER CAUTION RECALL. EXTINGUISHES WHEN RESET. PERFORMED PACK/ZONE TEMP CONTROLLED BIT TEST & OPS CHECK GOOD IAW B737NG AMM 21 51 00 700 803. RAN ENGINES AND OPERATED PACKS SHUT DOWN ENGINES AND PERFORMED PACK/ZONE TEMP CONTROLLER BIT TEST OPS CHECKS GOOD IAW B737NG AMM 21 51 00 700 803.
T/C 78128007 AD 08 10 10 CENTER TANK FUEL PUMP UNCOMMANDED SWITCH HELD ON TO POSITION MORE THAN 15 SECS CTR TANK LEFT LOW PRESSURE IND LIGHT DOES NOT ILL. PUMP CONTINUES TO OPERATE. REF WD 28 33 11 PG 6. FOUND NO POWER AT X1 OF D13794 TO RELAY R934 AUTO SHUT OFF TO RLY SUSPECT R936 AT FAULT. REPLACED RELAY R936 REF WD 28 23 11. SYS OPS CKS NML. TC 78128007 COMPLETED.
AUTOTHROTTLES DISENGAGED, WHEN RE-ENGAGE THEY DISCONNECT IN APPROX 5 -30 SECONDS AGAIN. GROUNDED YES. PERFORMED A/T CURRENT STATUS A/T THROTTLE SERVO TESTS W/NO DEFECTS. RANG OUT WIRING AS REQUESTED BETWEEN FCC A ASM1 AND ASM 2. NO DEFECTS FOUND. REF MM 22 31 91 REPLACED ASM 1. OPS CHK NML REF SAME MM CURRENT STATUS THROTTLE SERVO TESTS AND A/T TORQUE TEST ALL GOOD REF 22 31 00.
AFTER BLOCKOUT AND ENGINE START RECALL MASTER CAUTION SHOWED LEFT AIR CONDITIOING PACK AMBER PUSH RESET OF MASTER CAUTION AND EXTINGUISHED. TEMP CONTROLLER HAS NR 1 TEMP CONTROL VALVE FAULT. REPLACED NR 1 SYSTEM TEMPERATURE CONTROL VALVE IAW AMM 21 51 10 400 801 GROUND FUNCTIONAL TEST GOOD IAW AMM 21 51 10 400 801 PARA E NR 1 NR 6.
NR 1 ENG IDG DPI IS EXTENDED. REPLACED SCAVENGE AND CHARGE FILTERS NR 1 ENG IDG. GOOD LEAK CHECK REF MM 24 11 11.
NR 2 ENG IDG DPI IS EXTENDED. REPLACED SCAVENGE AND CHARGE FILTERS NR 2 ENG IDG REF MM 24 11 41 LEAK CHECKS GOOD.
WET SOCK SMELL IN CABIN DURING DESCENT INTO PDX BELOW 10 000 SMELL ESPECIALLY STRONG DISSIPATED SLIGHTLY BELOW 6 000 FT. ACCOMP CABIN ODOR T/S PER MM 05 60 00 280 801C1. FOUND APU TO BE SOURCE. OIL FOUND IN DRAIN LINE FOR APU LOAD COMPRESSOR CASE. ACCOMP OIL CONTAMINATION REMOVAL FROM A/C & PNEUMATIC SYSTEMS FOR APU BLEED DUCTING. NO DEFECTS NOTED. ACCOMP APU OPERATIONS TEST PER AMM 49 11 00 710 801. OPS CHECK GOOD.
AUTO THROTTLE DISENGAGED IN FLIGHT. ATTEMPTED TO RE-ENGAGE BUT DISENGAGED AGAIN. 22313000. PERFORMED A/T FIM TASK 22 32 00 FOR F/C 22 31688 WHICH WAS LOGGED ON 26 OCT 11 IN THE INFLIGHT FAULTS. CYCLED A/T DC1. PERFORMED A/T SYSTEM AND OPERATIONAL TEST PER M/M 22 31 00, OPS CHECKS GOOD NO FAULTS LOGGED.
ON ENG START APU COULD ONLY GET N2 TO 22 PERCENT ON BOTH ENG'S. STARTED APU & TURNED APU AIR ON & HEARD LOUD HISSING NOISE FROM LT WING FOUND LT WING ANTI ICE VLV STUCK OPEN WITH NO INDICATION OF VLV OPEN. REPLACED LT WING ANTI ICE VLV REF MM 30 11 11, OPS CHECK GOOD.
AUTOTHROTTLE SWITCH WILL NOT STAY IN ARMED POSITION AFTER REPEATED ATTEMPTS DURING CLIMB AND CRUISE.AUTOTHROTTLE CB (P18 E1) REMAINED ENGAGED. CURRENT STATUS COMES UP WITH ASM2 FAULTS AND FAULT HISTORY HAS NUMEROUS ASM2 FAULTS IN LAST TWO FLIGHT LEGS. REPLACED NR 2 ASM. INSTALLATION TEST PASSES. REF AMM 22 31 91/401.
AUTOTHROTTLE WILL NOT ENGAGE ON TAXI OUT. SWITCH DOES NOT HOLD IN "ARM" POSITION. ALL INDICATIONS NORMAL. A/T INFLIGHT FAULTS SHOWED 21 OCCURRANCES OF MAINT. MESSAGE 22 31502 FOR ASM 2 ON LEG 4. PERFORMED A/T BITE CURRENT STATUS TEST SEVERAL TIMES REF MM 22 31 00 ALL TESTS PASSED. ALSO PERFORMED A/T SERVO MOTOR TEST MULTIPLE TIMES REF MM 22 31 00. AFTER FAILING THE FIRST TEST FOR ASM 2 CYCLED AUTOTROTTLE DC1 C/B. ALL SUBSEQUENT SERVO MOTOR TESTS PASSED. OPS NORMAL.
RIGHT 'BLEED TRIP OFF' LIGHT ILLUMINATED 20 SECONDS INTO TAKEOFF ROLL. ABORTED TAKEOFF. GROUNDED PERFORMED FIM TASK 36 10 00 810 801. REPLACED RT PRSOV REF AMM 36 11 04 400 801 DUE TO EXCESSIVE AIR LEAK. AS PRECAUTION REPLACED RT BLEED AIR REGULATOR REF AMM 36 11 03 400 801. PERFORMED NR 2 ENG BLEED AIR CROSSOVER OPS TEST REF AMM 36 11 00 710 801. DUCT PRESS NORMAL. NO BLEED TRIP OCCURRED. AS A PRECAUTION REPLACED THE FOLLOWING COMPONENTS: NR 2 ENG PRECOOLER CONTROL VALVE REF AMM 36 12 02 400 801. NR 2 ENG HIGH STAGE REGULATOR REF AMM 36 11 07 400 801. NR 2 ENG HIGH STAGE VALVE REF AMM 36 11 06 400 801. 390* PRECOOLER CONTROL VALVE "SENSOR" IN REF TO AMM 36 12 03 400 801 GROUND FUNCTION TEST OK.
RIGHT "BLEED AIR TRIP' LIGHT ILLUMINATED. FL 260, RIGHT DUCT PRESSURE DROPPED TO 5 PSI. RESET TRIP SWITCH PUSHED DUCT PRESSURE RESTORED BRIEFLY LIGHT EXTINGUISHED FOR 1 SECOND THEN REILLUMINATED. IT REMAINED ON FOR THE DURATION OF THE FLIGHT. DIVERSION TIME 22 MIN. VERIFIED FAULT BLEED TRIP LT REMAINED ILLUM & WOULD NOT RESET W/ENG SHUTDOWN DISCONN 490 OVHT SW BLEED AIR TRIP LT RESET. REMOVED AND REPLACED 490 OVHT SW IAW 36 11 08 000 801 & PERFORMED REPAIR CONFIRMATION PER FIM TASK 36 10 00 810 801.
AUTOTHROTTLES WILL NOT STAY ENGAGED. CURRENT STATUS PASSED INFLIGHT FAULT SHOW MSG 22 31688 FOR PREVIOUS FLT. PERFORMED FIM 22 32 00 810 819 RAN SERVO MOTOR TEST NUMEROUS TIMES WITH NO FAULT. A/C REMAINS CATIIIA AUTOLAND & HGS QUALIFIED.
INTERROGATED THE FMC CDU FOR ENG FAULTS FOUND SHORT TERM FAULT CODE 73 21271 (NR 1 ENG). THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE. ACCOMPLISHED FIM TASK 73 27 00 810 804 F00 AT STEP F3 FOUND CONNECTOR DP0802 LOOSE. TIGHTENED CONNECTOR. REPAIR CONFIRMATION SATISFACTORY.
CB P18 2 A5 FOUND POPPED ON PREFLIGHT. ENG NR 1 ALTN PWR CHANNEL A. TROUBLESHOT SYSTEM FOUND NR 1 ENG EEC BAD. REPLACED EEC. REF: AMM 73 21 60. OPS NORMAL.
L2 BUTTON ON F/O MCDU KEYBOARD INTERMITTENTLY UNRESPONSIVE. REPLACED F/O MCDU KEYBOARD. OPS CHECKED OK PER AMM 34 61 01.
ON CLIMBOUT DUCT PRESS INDICATED L=18/R=40 PSI. CYCLED ENG AND WING HEAT ON/OFF WHICH CAUSED LEFT DUCT PRESS TO DROP TO 12 PSI W/A/I ON THEN BACK TO L23/R40. 3:51 HR/MIN INTO FLT DUCT PRESS STABLE AT L25 PSI/R42 PSI. PERFORMED LT ENG BLEED AIR HEALTH CHECK MM 36 11 00 700 801 NO DEFECTS. DURING PCCV HEALTH CHECK VALVE NOT OPEN AT CORRECT PSI. REF MM 36 12 00 700 801 PG 5 STEP 13. REPLACED LT PCCV REF MM 36 12 02 401/36 12 02 400 801. OPS CHECKED SYSTEM PER MM 36 11 00 710 801. ENGINE BLEED AIR CROSSOVER OPS TEST OPS CHECKS OK.
UNABLE TO OBTAIN HF CHECK ON 5547 11282. BITE TESTED BOTH HF TRANCEIVERS AND BOTH OPS CHECK GOOD BOTH HF TRANSMISSION AND RECEPTION WITH DEFFERENT FREQS OPS CHECK GOOD REF MM 23 11 00. RECEIVED SELCAL CALL FROM SFO ARINC COMM CENTER, OPS CHECK GOOD. USED 6640 MHZ.
AUTOTHROTTLE SYSTEM DISENGAGED DURING TAKEOFF WOULD NOT RE ENGAGE DURING REST OF FLIGHT GROUNDED YES. PERFORMED AUTOTHROTTLE OPERATIONAL TEST REF MM 22-31-00-710-801. CURRENT STATUS PASSED IN FLT FAULT LOGGED ASM NR 2, 15 FLT LEGS AGO SERVO MOTOR TEST PASSED.
AFTER ENGINE START IN PDX LEFT PACK LIGHT ILLUMINATED. CALLED MAINTENANCE CONTROL INSTRUCTED TO PERFORM OPERATION PROCEDURES FOR MEL 21 32B. THE PACK LIGHT EXTINGUISHED WHEN RESET AND NO OTHER LIGHTS ILLUMINATED. LEFT PACK LIGHT ONLY ILLUMINATED ON RECALL AND CAN BE RESET. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST PER AMM 21 61 00 AND RESET CONTROLLER. SYSTEM OP CHECKS GOOD, NO DEFECTS NOTED NO HISTORY IN THE LAST 90 DAYS.
FMC DISAGREE ON GROUND. QRH 1 9 PERFORMED OK. BOTH FMC OPS CK GOOD REF MM 34 61 00.
AFT CABIN TEMPERATURE DIFFICULT TO CONTROL IN AUTO, EITHER TOO HOT OR TOO COLD. BITE CHECKED TEMP CONTROLLERS NO FAULTS. FOUND CABIN TEMP SENSOR FILTERS VERY DIRTY. CHANGED FWD & AFT FILTERS.
AUTO THROTTLES INOP. COULD NOT DUPLICATE. A/T FFR LOGGED NO ASM DATA NR2 ASM 22 31502. DID NOT FIND FAULT ACTIVE. ACCOMP A/T CURRENT STATUS CK & A/T SERVO MOTOR TEST SEVERAL TIMES, ALL OPS CHECK NORMAL REF FIM:22 31/805. NO HISTORY 14 DAYS.
AUTO THROTTLES INOP. ACCOMPLISHED AUTOTHROTTLE CURRENT STATUS TEST, TEST PASSED. AUTOTHROTTLE SERVO TEST, ALSO PASSED. DUE TO HISTORY AND NUMEROUS INFLIGHT FAULTS OF "RATE LIMIT" ASM2. REMOVED AND REPLACED NR 2 ASM PER AMM REF 22 31 91 020 801, OPS CHECKS GOOD.
AFTER PRESSING TO / GA DURING TAKEOFF A/T'S ONLY ENGAGED THE NR 1 THROTTLE AND THEN DISCONNECTED. THROTTLES WERE MANUALLY SET TAKEOFF CONTINUED THEN A/T ARM WAS RE-ENGAGED WITH AN IMMEDIATE DISCONNECT. FLIGHT CONTINUED WITH A/T'S OFF. A/T FFR NO FAULT LOGGED FOR ASM CURRENT AND SERVO TEST PASSED. DFCS FFR LOGGED MSG22 11210 "FGN FAILS TO ENT TOGA". PERFORMED FIM 22 11 00 810 801 CURRENT STATUS PASSED. DFCS LRU FOR FCC AND LAND VERIFY TEST PASSED.
UPON RECALL ZONE TEMP LIGHT ILLUMINATED ON CONT CAB. EXTINGUISHES ON MASTER CAUTION RESET. ACCOMP'D FIM TASK 21 62 NR 842 NR 1 & 2 P/Z TEMP CTRLS BIT OK FLT FAULT (BOTH) SHOWED FLT DECK TEMP SENSOR FAIL. ACCOMP'D FIM TASKS 21 62 NR 810 & NR 811 RESET CTRLRS. BOTH CTRLS BITE OK. CKD & CLND FLT DECK TEMP SENSOR NO DEFECT NOTED. GRD VERIF. CHECK OK. SENSOR FAN OPS CKS OK.
CREW REPORTS CONTROL CABIN TEMP SENSOR FAN NOISY. REPLACED CONTROL CABIN TEMP SENSOR FAN. OPS CHECK SAME GOOD. REF MM 21 61 11/401. GND VERIFICATION TEST OF FAN GOOD.
OVERHEAT LIGHT ON RIGHT SIDE WINDOW HEAT CB P6 11 B8 POPPED. INSPECTED BEHIND C/B PANEL CORD TO SLIDING WINDOW AROUND WINDOW HEAT CONTROLLER. NO FAULTS NOTED. RESET CIRCUIT BREAKER. TROUBLESHOT PER FIM 30 41 00 810 806. REPLACED WINDOW HEAT CONTROLLER RT SIDE WINDOW REF M/M 30 41 11. TESTS NORMAL.
FMC DISAGREE MSG ILLUMINATED ON TAXI OUT. PERFORMED FMC DISAGREE CHECKLIST MSG NO LONGER DISPLAYED.
CONT CAB ZONE TEMP LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES WITH MASTER CAUTION RESET. ACCOMPLISHED BITE PROCEDURE ON BOTH PACK/ZONE TEMP CONTROLLERS. FOUND FAULT LOGGED ON CONT NR 2 'FLT DECK TRIM VALVE'. RESET CONTROLLER. BITE CHECK GOOD. REF AMM TASK 21 62 00 810 842 + 21 62 00 810 801. NO HISTORY 30 DAYS. RAN LEFT PACK ZONE TEMP LIGHT REMAINS EXTINGUISHED ON RECALL. OPS CHECK NORMAL.
PUSHING RECALL BUTTON CAUSED LEFT PACK LIGHT TO COME ON. LIGHT WENT OUT BY PUSHING MASTER CAUTION BUTTON FOLLOWED QRH. PERF'D BITE TEST OF BOTH PACK/ZONE TEMP CONTROLLERS REF AMM 21 61 00. FOUND NR 1 CTRLR WITH PREV FLT "RAM AIR SENSOR" RED IND. FAULT LT ON. COMPLETED TEST AND FAULT LT EXTINGUISHED. RETESTED PER ABOVE REF BOTH OPS NORMAL. LEFT PACK LT REMAINS EXTINGUISHED UPON MASTER RECALL. GROUND FUNCT CHECK OPS NORMAL.
GE DIAGNOSTICS REPORTS NR 1 ENGINE HAS EXPERIEINCED A SUDDEN TREND SHIFT IN CRUISE DELTA EGT AND CRUISE DELTA FUEL FLOW. TSR ISSUED. COMPLETED T/C 78273000 NO FAULTS NOTED FOR EITHER ENGINE. TSR STEP 1 COMPLETE. C/W TSR STEPS 2 6. NO DISCREPANCIES NOTED. REPLACED LT PACK FLOW CONTROL VALVE (PRECAUTIONARY PER TSR INSTRUCTIONS) REF MM 21 51 01. OPERATIONAL CK AND LEAK CK GOOD REF MM 21 51 01 400 805 002.
AUTO THROTTLES TRIPPED OFF DURING CLIMB COULD NOT RESTABLISH. A/T FFR SHOWED NUMEROUS RATE MONITOR ASM 2 FAULTS. A/T CURRENT STATUS AND SERVO MOTOR BITE CHECKS GOOD. PRECAUTIONARY REPLACED A/T SERVO MOTOR NR 2 REF MM 22 31 91. OPS CHECK NML REF SAME MM CURRENT STATUS TEST AND SERVO MOTOR TEST.
CAPTAIN SIDE PFD DISPLAYING FD FLAG. SUSPECT GROUND POWER UNIT CAUSED FAULT PUT ACFT ON APU PWR CAPTAINS F/D FLAG REMAINED OUT OF VIEW. PERFORMED DFCS BITE CHECK PER FIM 22 11 00 NO FAULTS FOUND. PERFORMED MMR BITE CHECK PER FIM 34 31 00. NO DEFECTS NOTED.
NR 1 ENG ANTI ICE VALVE REMAINED ILLUMINATED OPEN WITH SWITCH POSITIONED OFF. VERIFIED NR 1 ANTI ICE VALVE WILL NOT CLOSE. REMOVED AND REPLACED NR 1 ENG ANTI ICE VALVE REF AMM 30 21 11. OPS CHECK & LEAK CHECK GOOD ON ENGINE RUN.
DUCT PRESSURE SPLIT LEFT PRESURE STEADY AT 19 TO 20 PSI RIGHT PRESSURE VARIABLE 34 TO 45 PSI MOST OF FLIGHT BETWEEN 38 TO 43. FOUND BOTH THE BLEED AIR REGULATOR AND PRSOV OPERATING AT THE EDGE OF LIMITS WITH PRESSURE APPLIED REF MM 36 11 00 700 801. REPLACED PRSOV REF MM 36 11 04 000 AND 400 801. REPLACED BLEED AIR REGULATOR REF MM 36 11 03 000 400 801. INSTALLATION TEST GOOD. VERIFICATION FLIGHT UNSUCCESSFUL. REPLACED LT ENG PRECOOLER CONTROL VALVE AND SENSOR PER AMM 36 12 01 PB401 AND AMM36 12 03 PB401. REPLACED 490 F OVER TEMP SWITCH PER AMM 36 11 08 PB 401. REPLACED LT ENG HIGH STAGE VALVE AND PRSOV PER AMM 36 11 04 PB 401 AND AMM 36 11 06 PB 401. PERFORMED SYSTEM LEAK CHECK USING APU AIR PER AMM 36 11 00 700 802, NO LEAKS NOTED PERFORMED REPAIR COMFIRMATION TEST PER FIM TASK 36 10 00 810 807, NO DUCT SPLIT NOTED.
THE LEFT ENGINE BLEED AIR CONTROL SYSTEM IS BEGINNING TO DETERIORATE. DURING CLIMB AND CRUISE THE LEFT ENGINE DUCT PRESSURE IS LOW FOR THE GIVEN POWER SETTINGS. ACCOMPLISHED TC NG36WC 00001 ENG BLEED AIR SYSTEM HEALTH CHECK. FOUND NR 1 ENG HIGH STAGE REGULATOR BAD. REMOVED AND REPLACED NR 1 ENG HIGH STAGE REGULATOR OPS CHECKS AND LEAK CHECKS GOOD REF MM 36 11 07. GROUND VERIFICATION SUCCESSFUL.
NR 1 ENG "COWL VALVE OPEN" REMAINED IN TRANSIT POSITION. REMOVED AND REPLACED NR 1 ENG COWL TAI VALVE REF AMM 30 21 11, OPS CHECK NORMAL. SEAMC NOTIFIED.
AUTOTHROTTLES WILL NOT STAY ENGAGED. PERFORMED AUTOTHROTTLE SYSTEM OPS CHECK PER FIM 22 31 00 810 801 SYSTEM, OP CHECKS GOOD.
RADAR SPOKING IN LEFT QUADRANT. SEEMED LESS SO BELOW 10K, CONFIRMED. REMOVED & REPLACED WX RADAR TRANSCEIVER REF MM 34 43 41 400 801 & 34 43 41 000 801. OPS NORMAL PER SAME. GROUND VERIFICATION SUCCESSFUL.
NR 2 ENG OIL CAP LANYARD BROKEN. INSTALLED NEW LANYARD ON NR 2 ENG OIL CAP.
CAPTAINS CDU (ACFT LEFT) WENT BLANK 2 TIMES (DARK SCREEN NO PRESENTATION). STAYED BLANK AT 5 SECONDS DISPLAYED "BIT TEST" IN YELLOW (+) ADDITIONAL DATA IN BLUE FOR LESS THAN A SECOND THEN RETURNED TO NORMAL DISPLAY. THIS OCCURRED WHILE NO INPUT /EXECUTION BEING PERFORMED WITH EITHER CDU/FMC. EXCEPT FOR THESE TRANSIENT EVENTS WORKED FINE. PERFORMED FIM TASK 34 61 00 810 804 FOR CAPTS CDU NO FAULTS FOUND. REPAIR CONFIRMATION SUCCESSFUL. NO HISTORY SEAMC NOTIFIED.
THE AUTOTHROTTLE SYSTEM WILL NOT STAY ENGAGED. PERFORMED FIM 22-32 TASK 806 A/T BITE 22-31 TASK 801 CURRENT STATUS GOOD. A/T FFR SHOWED 1 FLT ONLY W/ ASM 2 RATE MONITOR FAULT. PERFORMED FIM 22-31 TASK 805 CURRENT STATUS INTERACTIVE / THROTTLE / SERVO MOTOR TEST GOOD, NO FAULTS INTERMITTENT FAULT.
FMC DISAGREE MESSAGE ON TAXI OUT AT MAUI. RAN QHR CHECKLIST 11.2 ON GROUND PROCEDURE. FMC DISAGREE MESSAGE NO LONGER DISPLAYED.
WHILE ACCOMPLISHING TC 7824900 FOUND APU FAULT CODE 49 41250. WHILE T/S APU CODE 49 41250 FOUND APU DRAWING 280 290 AMPS FROM BATTERY DURING START WITH GROUND POWER CONNECTED. FOUND APU START PWR UNIT GROUND STUD LOOSE. REPLACED APU START PWR UNIT REF MM 49 41 71 000 801, OPS CHECK OK. HARD FAULT CLEARED & ELEC SYS TEST OK. CONFIRMED FIX.
ON TAXI OUT BOTH FMC'S SHOWED FMC DISAGREE. PERFORMED QRH PROBLEM FIXED WITH A RESET. OPS NORMAL.
NR 1 ENG OIL CAP PACKING IS TORN. REPLACED NR 1 ENG OIL CAP PACKING PER AMM 79 11 01.
APU FAULT LIGHT ON, ON START UP AFTER LANDING. FOUND "DC POWER LOSS SHUTDOWN" IN RECENT FAULTS AND CURRENT FAULTS CLEARED THROUGH FIM TASK. PERFORMED FIM 49 10 00 810 801 APU STARTING AND OPERATION WAS GOOD IAW AMM 49 11 00 860 801 APU USUAL SHUTDOWN WAS GOOD IAW MM 49 11 00 860 802 APU BITE HAD NO PROBLEMS. GROUND VERIFICATION SUCCESSFUL.
AFTER PUSHBACK ON MASTER RECALL LEFT PACK LIGHT ILLUMINATED. GOES OUT ON PUSH TO RESET. BITE TEST ON LEFT CONTROLLER FAULTED LEFT TEMP CONTROL VALVE. RESET FAULT THEN BITE TEST GOOD. AS PRECAUTIONARY REPLACED LEFT TCV REF MM 21 51 10 000 801 AND 400 801. OPS AND LEAK CHECK NORMAL.
L PACK LIGHT ILLUMINATED DURING RECALL. PACK WORKED NORMALLY. RESET CLEARED LIGHT. PERFORMED TEMP CONTROLLER BITE CHECK PER FIM TASK 21 62 00 810 801. NO FAULTS FOUND / TEMP CONTROL SYSTEM GROUND VERIFICATION CHECKS GOOD PER FIM TASK 21 62 00 810 830.
AT 39000FT CABIN PRESSURE AT 7000FT CABIN DIFF PRESS IS AT 8.6 (IN THE YELLOW BAND). PASSING THROUGH 35000FT CABIN AT 7000FT CABIN DIFF PRESS AT 8.2 (OUTSIDE YELLOW BAND). REMOVED & REPLACED DIFF PRESS IND. LEAK CHECKS GOOD REF AMM 34 11 00 790 808. GROUND VERIFY SUCCESSFUL REF AMM 21 33 02 400 801.
CREW REPORTS SHIPS MAIN BATTERIES ARE DEAD. PERFORMED AUTO LAND VERIFY TEST PER MM 22 03 10/101. ALL TESTS PASSED. A/C REMAINS CAT IIIA AUTO LAND QUALIFIED. MC ADVISED.
CREW REPORTS SHIPS MAIN BATTERIES ARE DEAD. PERFORMED AUTO LAND VERIFY TEST PER MM 22 03 10/101. ALL TESTS PASSED. A/C REMAINS CAT IXIA AUTO LAND QUALIFIED. MC ADVISED.
NR 2 ENG OIL TANK CAP RETAINING CHAIN DISCONNECTED. REMOVED AND REPLACED NR 2 ENG OIL TANK CAP PER AMM 79 11 01. RECONNECTED RETAINING CHAIN. OPS NORMAL.
LEFT PACK LIGHT ILLUMINATED ON RECALL, QRH FOLLOWED, WILL NOT RESET. BITE CHECK SHOWS TCV FAULT. REPLACED TCV REF AMM 21 51 10, OPS CHECKS GOOD. LEAK CHECK GOOD. PACK LIGHT REMAINS EXT UPON RECALL.
NR 1 ENG HAS EXCESSIVE OIL ON O/B COWL & AFTER ONLY 1 HR GROUND TIME A 6 INCH PUDDLE ON THE GROUND. FOUND DRAIN PLUG FOR AGB LEAKING. REPLACED O-RING FOR DRAIN PLUG ON AGB. REF MM 12 13 11 600 803 STEP H (4) (A) (6) ADDED 1 QT OF OIL TO NR 1 ENG LEAK. CHECK NR 1 ENG AGB OIL PLUG, NO LEAKS NOTED.
WHILE PERFORMING T/C 78273000 ON ENG NR 1 FOUND FAULT CODES 73 20341 "FMV POS SIGNAL OUT OF RANGE" 73 10351 "FMV POS SIGNALS DISAGREE" 73 20351 "FMV POS SIGNALS DISAGREE". LOGGED FOR LEGS 0 1 2 3 5 6 7 9 10. SHORT TERM FAULT. ACCOMPLISHED NR 1 ENGINE EEC TEST AND ACTUATORS TEST. BOTH TESTS PASS. PER TECH SERVICES DUE TO HISTORY REPLACE NR 1 HMU. REMOVED & REPLACED NR 1 ENG HMU REF MM 73 11 01 400 801 FOO STEPS G (1) (16) J. COMPLETED HMU INSTALLATION. LEAK & OPS CHECKS GOOD PER M/M 71 00 00 800 811. NO FAULTS NOTED.
WHILE PERFORMING TC 78273000 FOUND FAULT CODE 73 30351 FMV POSITION SIGNAL DISAGREE NR 1 ENGINE. PERFORMED ACTUATORS TEST AND EEC TEST PER FIM 73 25 00 810 804 F00 SYSTEM TESTS GOOD NO FAULTS FOR EITHER TEST. SEAMC NOTIFIED.
WINDOW R2 OVERHEAT LIGHT CAME ON DURING FLIGHT AND STAYED ON AFTER 5 MIN OF COOLING. SWITCH LEFT OFF. T/S PER FIM 30 41 TASK 801. WHCU SHOWED "BUS PWR" FAULT. FOUND RT SIDE WINDOW HEAT PWR C/B OUT. CHECKED, NO HISTORY. RESET C/B REF MM 20 60 01. C/B RESET OK. OPS CHECK R2 WINDOW HEAT GOOD. GND VERIFICATION OF R2 WINDOW HEAT GOOD. REF FIM 30 41TASK 806 & MM 30 41 00/501.
BATT DISCHARGE LIGHT CAME ON BATT POSITION SHOWS 5 DC AMPS. UNABLE TO DUPLICATE. PERF DC SYSTEM, OPS CHECK 24 31 00 AND MAIN & AUX BATT CHARGER OPS CHECK PER 24 31 21 AND 24 31 31, ALL CHECK NORMAL. VERIFICATION FLIGHT SUCCESSFUL.
A/C WILL NOT ACCEPT EXT PWR OR GRD SERVICE PWR ALL INDICATIONS SHOW NORMAL. REPLACED BPCU, NO HELP. RE-INSTALLED ORIGINAL BPCU REF 24 42 21 400 801, REPLACED P5 4. NO HELP. RE-INSTALLED ORIGINAL P5 4 SEAMC NOTIFIED. REF MM 24 21 51 000 801. REMOVED AND REPLACED C 803 RELAY AND FUNCTIONAL CHECK NORMAL PER MM 24 21 41 400 801.
REF T/C 78273000: NR 1 ENGINE HAS SHORT TERM FAULT 73 20341 "FMV POSITION SIGNAL OUT OF RANGE" LOGGED FOR LEGS 1 2 6 10. REMOVED AND REPLACED NR 1 ENGINE EEC REF MM 73 21 60. REMOVED AND REPLACED J6 HARNESS REF MM 73 21 06 000 801 FOO. OPS CHECKED EEC CKS GOOD REF MM 73 21 60. PERFORMED IDENT/CONFIG TASK CK'ED GOOD REF MM 73 21 00 700 808 F00. PERFORMED EEC DISCRETES TEST. OPS CHECKS GOOD REF MM 73 21 00 700 809 F00.
AFTER ENGINE START, FMC DISAGREE WAS DISPLAYED. FOLLOWED QRH AND NORMAL OPS WAS RESTORED. ACFT GROUNDED.
FMC DISAGREE LIGHT ILLUMINATED ON GROUND. ACFT GROUNDED. PERFORMED APPLICABLE QRH OPS NORMAL.
FMC DISAGREE FLAG DURING TAXI OUT HAD POWER DROP-OFF GND POWER AT GATE 18 SAN DIEGO BUT NO FMC FAULTS OR IMPROPER INDICATIONS UNTIL TAXI. FOUND OUT THIS IS A KNOWN PROBLEM FOR GATE 18. FOLLOWED CHECKLIST PROCEDURE AND FAULT RESOLVED. OPS NORMAL.
LEFT (BLUE) VALVE OPEN LIGHT FOR THE WING ANTI ICE FLICKERS OFF AND ON ONCE IT IS SECURED OFF. REMOVED AND REPLACED WING THERMAL ANTI ICE VALVE FOR LT WING. OPS AND LEAK CHECKED IAW MM 30 11 11 400 801 AND MM 30 11 11 710 801.
NR 2 ENGINE OIL CAP HAS A CUT O-RING. INSTALLED NEW O-RING ON OIL CAP.
RADAR IS SPOKING MULTIPLE SPOKES FROM 10:00 O'CLOCK POSITION TO 2:00 OâCLOCK POSITION CONSTANTLY. SCALE USED WAS 320 NM CAL WX T STAB ON TILT 2 DEG ALSO DID SAME ON THE 80 NM SCALE. COULD NOT DUPLICATE RADAR SPIKING. NO HISTORY 180 DAYS. REMOVED AND REPLACED WEATHER RADAR RECEIVER/TRANSMITTER IAW MM 34 43 41 000 801. PERFORMED EFFECTIVE GROUND CHECK IAW MM 34 43 00 710 802 001, NO DEFECTS NOTED.
THE "AFT CAB" TEMPERATURE CONTROL KNOB HAD TO BE TURNED APPROXIMATELY 90 PERCENT AVAILABLE LIMIT TO KEEP CABIN AT COMFORTABLE TEMPERATURE. OPS CK PER AMM 21 61 00 700 807 002 FAULT VERIFIED. FOUND AFT CABIN TEMP SENSOR FILTER PLUGGED. REPLACED FILTER PER TASK CARD N2221000. OPS CHECK PER 21 61 00 700 807 002, CHECKS GOOD. SEAMC NOTIFIED. P/N 412A1600 41 PARTS VERIFICATION COMPLIED WITH SEAMC.
AFTER TAKEOFF LEFT PACK LIGHT ILLUMINATED AND REMAINED ILLUMINATED AFTER QRH PROCEDURES FOLLOWED. NR 1 CONTROLLER SHOWS TCV THIS PACK FAULT. RESET FAULT. FAULT DID NO RETURN. NO HISTORY 90 DAYS. INTERMITTENT FAULT. OPS CHECK LT PACK GOOD. REF FIM 21 53 TASK 817. VERIFICATION FLIGHT SUCCESSFUL.
INFO ONLY: FMC DISAGREE ON TAXI OUT. FOLLOWED QRH AND SYSTEM NORMAL. PERFORMED FIM TASK 34 61 00 810 835 INITIAL EVALUATION. OPS NORMAL. NO FAULTS NOTED. SEAMC NOTIFIED.
AT FL 39000FT NR 1 ENG ANTI ICE VALVE (LEFT ENG) STAYED BRIGHT BLUE FOR 20SEC THEN WENT DIM. OAI 63 C, POSSIBLE COLD TEMP STUCK VALVE RELATED. GROUND VERIFIED FAULT TAI VALVE STICKING. VALVE ASSY COWL THRM ANTI ICE P/N VERIFIED BY SEAMC. REMOVED VALVE REF MM 30 21 11 000 801. INSTALLED VALVE REF MM 30 21 11 400 801. GROUND VERIFIED TAI VALVE, OPS CHECKS REF MM 30 21 11 400 801, LEAK CHKS GOOD. SEAMC NOTIFIED.
ON RECALL CONT CAB ZONE TEMP LIGHT ILLUMINATED. GROUNDED, YES. REMOVED AND REPLACED CABIN ZONE TRIM MODULATING VALVE IAW AMM 21 61 21.
NR 2 "ENGINE VALVE CLOSED" ANNUCIATOR LIGHT REMAINED ON AFTER ENGINE START. PERFORMED FIM TASK 73 06 00 810 805 F00 ON NR 2 ENGINE GROUND FUNCTIONAL TEST CHECKED GOOD.
UNABLE TO TRANSMIT ON HF RADIOS. HF NR 1 AND NR 2 RADIO'S RECEIVE AND TRANSMIT NORMAL REF MM TASK 24 22 00 860 812. VERIFICATION FLIGHT SATISFACTORY HF RADIO CHECK GOOD. SEAMC NOTIFIED A/C IS NOW QUALIFIED.
CLIMBING BETWEEN FL360 AND FL380 ON AUTO PRESSURE MODE CONTROLLER KEPT DESCENDING. SELECTED ALT AND IT STABILIZED. ON DESCENT FROM FL360 TO GRND IT WORKED IN AUTO. UNABLE TO VERIFY DEFECT. NO EXISTING FAULTS IN NR 1 & 2 DCPC. NO FAULTS IN NR 1 & 2 DCPC FAULT HISTORY FOR THE LAST 40+ FLIGHTS. FOLLOWED FIM 21 31 TASK 801 NO FAULTS FOUND. VERIFICATION FLIGHT SUCCESSFUL. NO HISTORY 90 DAYS.
L PACK LIGHT ILLUMINATED DURING RECALL TEST LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. PERFORMED FIM TASK 21 62 00 810 848, PERFORMED BITE CHECK TCV FAILED THEN HIT VERIFY THE FAULT CLEARED. PERFORMED 2ND BITE CHECK, NO FAULTS NOTED. DUE TO HISTORY 10 DAYS PRIOR REMOVED AND REPLACED LT PACK TEMP CONTROL VALVE REF AMM 21 51 10. REF PART NUMBER AND EFF WITH SEAMC MIKE. LEAK CHECKED GOOD, PERFORMED 3RD BITE CHECK, NO FAULTS NOTED.
AUTO THROTTLES DISENGAGED, WILL NOT RE ENGAGE. INFLIGHT FAULTS LOGGED NR 2 ASM FAULT 15 TIMES ON FLIGHT LEG NR 2. SUGGEST REMOVING AND REPLACING NR 2 AUTOTHROTTLE SERVO MOTOR PART NUMBER 305RAA1 REF IPC 22-31-91-01. A/T SYS TESTS GOOD PER MM 22 31 00/501. CLEARS MEL 22 4B REMOVED PLACARD C/N 0213010.
LT PACK LIGHT ON RECALL EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED YES. AFTER LT TEMP CONTROLLER RESET IT FAULTED TCV ORIG NO RECURRENCE OF MALFUNCTION AND NO HISTORY NOTED REF 21-61-00 GROUND VERIFICATION SUCCESSFUL.
NR 1 ENGINE ANTI ICE COWL VALVE REMAINS ILLUMINATED BRIGHT WHEN SELECTED ON. ENGINE POWER (THRUST) SELECTION HAS NO EFFECT. GROUNDED YES. CAPT. REPORTED CYCLED NR 1 ENG. COWL SWITCH AND LIGHT WAS SLOW TO GO DIM. AFTER LANDING CREW CYCLED SWITCH SEVERAL TIMES WITH NO DEFECTS. PERFORMED FIM TASK 30 21 00 810 802 WITH NR 1 ENG. AT GROUND IDLE. CYCLED NR 1 ENG. ANTI ICE SWITCH 5 TIMES WITH NO DEFECTS NOTED. INTERMITTENT FAULT WITH NO HISTORY. VERIFICATION FLIGHT OPS CHECKS NORMAL.