N409AS
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
EMERGENCY LIGHTS OUT AT, ROWS LEFT ROW 27 AND RIGHT ROWS 9,13, 25 AND 29. GROUNDED - YES. REMOVED AND REPLACED BATTERIES FOR EMERGENCY LIGHTS ON ROWS 9,13,25,27, AND 29. IAW AMM 33-51-06-960-805. OPS CHECKED GOOD.
RIGHT BAFFLE CLIP BS 500A IS CRACKED AFT SIDE OF FRAME. GROUNDED - YES. REMOVED AND RELACED RT BAFFLE CLIP BS 500A, AFT SIDE OF FRAME IAW SRM 51-40-02-0G-0.
FWD CARGO RT TRANSITION PANEL BS 500B TO 500H HAS MULTIPLE CRACKED AREAS. GROUNDED - YES. REMOVED AND REPLACED RT TRANSITION PANEL AND SPLICE BS 500B TO 500H IAW SRM 53-00-53-2R-6.
ENROUTE- F/A REPORTS EXIT SIGN NEAR GARBAGE BIN AT L2 DOOR IS MISSING. GROUNDED - YES. FOUND LENS COVER FOR MISSING EXIT SIGN AT L2 DOOR, INSTALLED LENS COVER REF IPC 33-51-01. EXIT SIGN OPS CHECK GOOD.
ACCOMPLISH REPAIRS FOR THE DISCREPANCIES LISTED ON THE ATTACHED AAR MIG-85A (S) FOR ASA WALK ITEMS. (REF MULTI STEP 8 - CABIN EMERGENCY CEILING LIGHTS INOP AT THE FOLLOWING LOCATIONS: 17FED, 19FED, AND 23FED) GROUNDED - YES. ALL DISCREPANCIES LISTED ON ATTACHED AAR MIG-85A'S WERE CORRECTED. (REF MULTI STEP 8 - REMOVED AND REPLACED CABIN EMERGENCY LIGHT BATTERY, OP-CHECK GOOD IAW B737-900 ER AMM 33-51-06-960-805) (S/N 21894)
AFTER REMOVAL OF RH AFT CARGO TRANSITION PANEL FOR INTERCOSTAL CORRODED AT STA 747 TO 767, MARKED. GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL IAW B737-900ER SRM 51-40-02-0G-0W-1" O-.032 R-.028 L-4" D-.004.
AFT WET AREA STA 1016 FLOOR BEAM HAS CORROSION AT RBL 50. GROUNDED - YES. REPAIRS MADE TO FLOOR BEAM 1016 AT RBL 50 IAW ASA900ER-53EA-27183 REV 00W-1" O-.150 R-.115 L-2" D-.035.
AFT WET AREA STA 986 FLOOR BEAM HAS CORROSION RBL 30 TO RBL 50. GROUNDED - YES. REPAIRED STA 986 FLOOR BEAM IAW 900ER-53EA-27211 REV 00 W 1 O .150 R .099 L 1 D .051.
AFT WET AREA FLOOR SUPPORT RBL 50 STA 947 TO 967 HAS CORROSION. GROUNDED - YES. REMOVED AND REPLACED FLOOR SUPPORT AT RBL 50 FROM STA 947 TO 967 IAW BOEING 737-900 SRM 51-40-02-0G-0W-2" O-.085" R-.075" L-2" D-.010.
FWD WET AREA INTERCOSTAL CRACKED AT RBL 30 STA 312 TO 328. GROUNDED - YES. REMOVED AND REPLAED INTERCOSTAL IAW B737-900 ER SRM 51-40-05-0G-0 AND SRM 51-40-02-0G-0.
L/H TRANSITION PANEL STA 500H TO 500L IS CORRODED. GROUNDED - YES. L/H TRANSITION PNL STA 500H TO 500L REPAIRED IAW B737-900ER SRM 53-00-53-2R-6W=2" O=.040" R=.035" L=10" D=.005".
AFT WET AREA FLOOR SUPPORT RBL 20 STA 967 TO 986 HAS CORROSION. GROUNDED - YES. REMOVED AND REPLACED FOOR SUPPORT IAW B737-900ER SRM 51-40-02-0G-0W-1.5" O-.075" R-.058" L-1.5" D-.017".
AFT WET AREA FLOOR SUPPORT RBL 20 STA 947 TO 967 HAS CORROSION. GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL IAW B737-900ER SRM 51-40-02-0G-0W=3" O=.075 R=.012 L=4 D=.063.
R/H TRANSITION PANEL STA 500H TO 500L IS CORRODED. GROUNDED - YES. R/H TRANSITION PNL STA 500H TO 500L REPAIRED IAW B737-900ER SRM 53-00-53-2R-6W .8 O .040 R .032 L 1.8 D .008.
AFT CARGO SIDEWALL SUPPORT AT STA 727I RBL 26 IS CORRODED. GROUNDED - YES. REMOVED DAMAGE SIDEWALL SUPPORT FOUND TO BE OUT LIMITS IAW B737-900ER SRM 53-00-07-1A-1 REMOVED AND REPLACED SIDEWALL SUPPORT IAW B737-900ER SRM 53-00-07-2R-4W:1" O: .063" R: .032" L: 2" D: .031.
AFT CARGO R/H TRACK HAS CORROSION AT STA 773. GROUNDED - YES. REMOVED DAMACE, FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2 FOR REPAIR ACCOMPLISHED TO CARGO TRACK SEE MIG-6 OK380387W: 1 O: .070 R: 0 L: 4 D: .070.
AFT CARGO R/H TRACK IS CRACKED AT STA 727H, 727I, 727J AND 727K. GROUNDED - YES. REMOVED AND REPLACED CARGO TRACK IAW B737-900ER SRM 51-40-02-0G-0, REPAIRED CARGO TRACK SECTION FROM STA 727G+12 TO 727 I +6 IAW B737-900ER SRM 53-00-53-2R-3.
AFT CARGO L/H TRANSITION HAS AREAS OF CORROSION STA 727A TO 847. GROUNDED - YES. REMOVED CORROSION FOUND OUT LIMITS IAW B737-900ER SRM 53-00-53-1A-2 & FABRICATED TRANSITION IAW B737-900ER SRM 53-00-53-2R-5W=1" O=.040" R=.023" L=1" D=.017".
AFT CARGO L/H TRACK IS CRACKED AT STA 727I. GROUNDED - YES. REPAIRED CARGO TRACK IAW B737-900ER SRM 53-00-53-2R-3.
AFT CARGO STRAP RBL 24 STA 807 TO 827 HAS CORROSION. GROUNDED - YES. REMOVED DAMAGE AFT CARGO STRAP FOUND TO BE OUT LIMITS IAW B737-900ER SRM 53-60-15-1A-1, REMOVED AND REPLACED AFT CARGO STRAP IAW B737-900ER SRM 51-40-02-0G-0W: 2" O: .080 R: .068" L: 1" D: .012".
AFT CARGO R/H TRANSITION AFT OF DOOR HAS AREAS OF CORROSION GROUNDED - YES. REMOVED DAMAGE TRANSITION PANEL FOUND TO BE OUT LIMITS IAW SRM 53-00-53-1A-2, REMOVED AND REPLACED TRANSITION PANEL IAW SRM 53-00-53-2R-5 W:1" O:.040" R:.032 L:1" D:.008
AFT CARGO FWD SHIELD HAS AREAS OF CORROSION. GROUNDED - YES. REMOVED DAMAGE, 100% MATERIAL LOSS, FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-60-15-1A-1, REMOVED AND REPLACED SHIELD AT AFT CARGO FWD SIDE, IAW B737-900ER SRM 51-40-02-G-0W 1.5 O .050 R .000 L 1.5 D .050.
AFT CARGO R/H TRANSITION HAS AREAS OF CORROSION STA 737A TO STA 767. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2, REPAIRED TRANSITION IAW B737-900ER SRM 53-00-53-2R-5W: 1" O: .040" R: 0 L: 1" D: .040".
FWD CARGO DOOR CUT-OUT LOWER WEB CELL UPPER SKIN HAS CORROSION IN MULTIPLE SPOTS (MARKED). GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS. REMOVED, LOCATED, DRILLED AND REPLACED WEB IAW B737-900ER SRM 51-40-02-0G-0 AND 51-40-05-0G-0W: 2" O: .045 R: .037 L: 35" D: .008.
AFT CARGO DOOR CUT-OUT LOWER WEB CORRODED (MARKED). GROUNDED - YES. REMOVED DAMAGE, MATERIAL FOUN TO BE OUT OF LIMITS, REMOVED AND REPLACED LOWER WEB FROM AFT CARGO DOOR CUT-OUT IAW B737-900ER SRM 53-60-15-1A-1, 51-40-02-0G-0W 1".5 O .056 R .042 L 2" D .008.
RIGHT OVERWING EXIT EMERGENCY LIGHT, EXIT ID AT LT AND RT AFT OVER HATCH FAILED BATTERY CHECK. GROUNDED - YES. REMOVED AND REPLACED AND OPS CHECK GOOD FOR EMERGENCY LIGHT BATTERY IAW B737-900 AMM 33-51-06-960-805. (S/N 219083)
WHILE PERFORMING T/C 78233008, FOUND 3 SECTIONS OF THE LH SIDE EMERGENCY EXIT LIGHTS INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK IN AFT GALLEY CEILING PANEL, AND BATTERY PACKS IN LH FOOT PANELS LOCATED 1 WINDOW FWD OF FWD OVERWING EXIT DOOR AND 11 WINDOWS FWD OF FWD OVERWING EXIT DOOR REF AMM TASK 33-51-06-960-805, OPS TEST GOOD FOR ALL EMERGENCY EXIT LIGHTS AT THIS TIME.
NITROGEN GENERATION SYSTEM IS IN DEGRADED CONDITION. GROUNDED - YES. R/R LEFT FLOW CONTROL AND SHUTOFF VALVE IAW AMM TASK 21-51-01. OPS CHECK GOOD. NGS LIGHT SHOWS GREEN. NO LEAK. PACK/ZONE TEMP CONTROLLER FAULTS. SEAMC ANDY NOTIFIED. PLACARD REMOVED.
ZONE TEMP CONT CAB ILLUMINATED. EXT ON RESET. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 801. OPS CK GOOD.
#1 DRIVE LIGHT NOT ILLUMINATED WITH ENGINE SHUT DOWN. LIGHT ILLUMINATES DURING LIGHT TEST. GROUNDED - YES. ON DEFERRAL.
ENGINE #1 DRIVE LIGHT NOT ILLUMINATED ON GROUND. GROUNDED - YES. ON DEFERRAL.
# 1 "DRIVE" LIGHT NOT ILLUMINATED ON GROUND. BULBS TEST GOOD. GROUNDED - YES. ON DEFERRAL.
FMC L&R DISCRETES SHOW RIGHT PACK ON EVEN WHEN SWITCHED OFF. GROUNDED - YES. REMOVED R/H PACK FLOW CONTROL VALVE, REMOVED R/H ACM REF AMM 21-51-04. REPLACED R/H PACK FLOW CONTROL VALVE PER AMM 21-51-01-400-802-002 PARA 5H-G(13). DOWN TO OPS CHECKS, INSTALLED NEW ACM REF AMM 21-51-04-400-802-002 PARA 3A-H, DOWN TO OPS TESTS D ISLES13124 09/23/2023. COMPLETED R/H PACK FLOW CONTROL VALVE INSTALLATION REF AMM 21-51-01-400-802-002 PAR 55(14,15) H,I. LEAK AND OPS CHECK GOOD. COMPLETED ACM INSTALLATION REF AMM 21-51-04-400-802-002 STEPS I,J. OPS AND LEAK CHECK GOOD. NO FURTHER FMC L&R DISCRETE FAULTS NOTED.
#2 EGT 83 DEG HIGHER THAN #1 ENGINE. #2 SLOW TO ACCELERATE TO 40. GROUNDED - YES. #2 ENGINE REPLACED ON A/C W/O 1970733 REF TC'S 78471000 + 78471001.
DURING ENG 2 BITE TEST FOUND MX MESSAGE # 77-20872"THE TOP LEFT EGT SIGNAL IS OUT OF RANGE." ECONOMIC FAULT. GROUNDED - YES. ON DEFERRAL.
REF TSR714980, DURING COMPLETION OF WIRE HARNESS INSPECTION, FOUND BLACK SHEATHING WORN APPROX 4 IN FWD OF DP901 ON THE #2 ENG. NO DAMAGE NOTED TO METAL BRAID. GROUNDED - YES. ON THE #2 ENG, PERFORMED ENGINE WIRING HARNESS REPAIR OF THE J9 HARNESS, 4 IN FWD OF DP901 REF AMM 70-70-01-350-801-F00. THIS IS A TEMPORARY REPAIR. REPLACE THE HARNESS AT 30,000 CYCLES OR THE NEXT ENGINE SHOP VISIT WHICHEVER OCCURS FIRST. IT IS APPLICABLE IF THE DAMAGED AREA OF THE HARNESS IS IN THE DIMENSIONS OF THE PERMITTED LIMITS C/N 17036409, SEAMC NOTIFIED. (RESOLVED ON W/O: 1970733 TASKCARD: N/R-00009 ) DEFECT TRANSFER TO SHOP W/O # 1970733. CLEAR PLT, SEAMC NOTIFIED. C/N # 17036409.
REF LP 60608120. AFTER PERFORMING IDLE RUN TEST FOR STARTER INSTALLATION AND CLOSING FAN COWLS FOUND STEADY FUEL DRIPPING FROM DRAIN AT BOTTOM OF COWLING #2 ENGINE. GROUNDED - YES. ON DEFERRAL.
#2 ENGINE NO ROTATION. GROUNDED - YES. INITIATED MIG-2C S/N: 40-0054352. K. TABAKCI ASA 47439 09/15/2023 REMOVED AND INSTALLED #2 ENGINE STARTER REF AMM 80-11-01-000-801-F00, AMM 80-11-01-400-801-F00 3, G. NEEDS OPS CHECK. 41225 09/16/2023. ACCOMPLISHED FIM TASK 80-07 TASK 802 C JOHNSON 41225 09/16/2023. MIG-2C S/N: 40-0054352 COMPLETED 38267 09/17/2023. COMPLETED AMM REF 80-11-01-400-801-F00, STARTER INSTALL STEPS (H) ONWARD. OPS CHECK GOOD. NO ABNORMAL LEAKS NOTED AT STARTER. AFTER CLOSING FAN COWLS DISCOVERED FUEL DRIPPING AT BOTTOM OF COWLING. REF LP 60608123.
ON GROUND. #2 ENGINE SIGNIFICANTLY SLOWER FOR N1 TO SPOOL UP AS WELL AS MUCH HIGHER EGT AND FUEL FLOW. ON THE T/O ROLL IN DFW EGT #2 WAS AROUND 920 AT PEAK TEMP BEFORE POWER REDUCTION. ENGINE OPERATION AND PARAMETERS WERE NORMAL IN FLIGHT. AGAIN ON THE GROND IN SEA #2 ENG RESPONSE VERY SLOW. GROUNDED - YES. PERFORMED PWR ASSURANCE CK REF AMM 71-00-00 AT 64.8, N1EGT 560. N2 88.4. AT 69.8 N1 EGT 600. N2 90.1. AT 74.7 N1 EGT 640 N2 91.8. WITHIN LIMITS. ACCOMPLISHED ACCELERATION CK TEST 8. REF MM 71-00-00. WITHIN LIMITS. UNDER 6.3.
RED BOX ON #2 ENGINE EGT GAUGE UPON SHUTDOWN. NO OTHER ABNORMAL INDICATIONS THROUGHOUT FLIGHT. (REF TSR714980) GROUNDED - YES. (RESOLVED ON W/O: 1969938 TASKCARD: N/R-00001) PERFORMED ENG EXCEEDANCE PAGE CHK PER AMM 71-00-00-740-801-F00. NO EXCEEDANCES FOUND. PERFORMED FIM 77-21 TASK 804. T49.5 PARAMETER IS WITHIN THE LIMITS SH 26065 09/16/23. REMOVED AND REPLACED S4 T49.5 PROBE ON ENGINE #2 REF AMM 77-21-01/401. EEC TEST GOOD. WSO 30744 09/16/2023. REF LP 60849158 FOR TSR. REF AMM 70-70-01-200-801-F00. 56558. REF LP 60608118 FOR ACCOMPLISHMENT OF STEP 6. TSR COMPLIED WITH. SEAMC NOTIFIED. JEREMY
AFTER LANDING AND ENGINES AT IDLE. RH DUCT PRESSURE WAS AT 6 PSI, LH DUCT PRESSURE WAS AT 18PSI. AFTER SWITCHING TO APU BLEED AIR BOTH PRESSURES ROSE TO 05 PSI. GROUNDED - YES. (RESOLVED ON W/O: 1969307 TASKCARD: N/R-00001 ) FOUND #2 HSR FAILD, REPLACED HSR REF MM 36-11-07-400-801. LEAK CK GOOD. REQUIRES CROSSOVER CK. . DURING CROSSOVER BLEED OPS TEST, DUCT SPLIT OF 17PSI FOUND AT 80% N1. REMOVED AND REPLACED TEMP BLEED AIR OVER TEMP SENSOR REF AMM 36-11-05-400-801 AND PRECOOLER CONTROL VALVE 36-12-03-400-801. NO LEAKS NOTED, THIS CLEARS MEL 36-9B CN 11056409 REVERSE MEL PROCEDURES PLACARDS REMOVED SEAMC NOTIFIED.
PERFORMED ENGINE #2 BITE TEST FOUND FAULT CODE 77-20872 "TOP LEFT EFT SIGNAL (T495S4) IS OUT OF RANGE." ON FLIGHT LEG 0 AND 1. ECONOMIC FAULT. GROUNDED - YES. ON DEFERRAL.
FVR #1 HF RADIO CHECKS GOOD. GOOD RECEPTION BUT UNABLE TO TRANSMIT ON HF 2. GROUNDED - YES. ON DEFERRAL
DURING APU GVI REFER T/C 78349007 STEP D FOUND OIL FILTER INDICATOR EXTENDED. GROUNDED - YES. REMOVED AND REPLACED LUBE FILTER ELEMENT ON APU REFER AMM 49-91-13. OPS CK GOOD, NO LEAKS NOTED OR DEBRIS ON MAGNETIC DRAIN PLUG. APU BITE CHECK NO FAULTS FOUND. SEAMC MITCH NOTIFIED.
FMC DISAGREE - GROUNDED - YES. PERFORMED QRH LIGHT WENT OUT.
TESTED TRANSMISSION OF BOTH HF1 AND HF2 AS DIRECTED BY SEAMC. BOTH RADIOS FAILED TO MAKE CONTACT WITH SFO RADIO. 5 DIFFERENT FREQS WERE ATTEMPTED. FREQS WERE ASSIGNED BY SFO RADIO. GROUNDED - YES. ON DEFERRAL.
HF #2 DOES NOT TRANSMIT. GROUNDED - YES. ON DEFERRAL.
LEFT FWD WINDOW OVER HEAT LIGHT IS ON. GROUNDED - YES. PERFORMED B737-900 FIM 30-41 TASK 801, FOUND C/B "WINDOW HEAT POWER LEFT FRONT" (B9) ON P6-11 PANEL OPEN. GVI'D C/B, NO DEFECTS NOTED AT THIS TIME AND RESET, REF B737-900 AMM 20-60-01. PERFORMED BITE ON LEFT FWD WHCU, PASSED. FAULT HISTORY NOTED "BUS POWER" FAULT AS PREVIOUS FAULT. PERFORMED WINDOW HEAT SYSTEM OPS TEST FOR LEFT FWD WINDOW, PASSED, REF AMM 30-41-00. RE-PERFORMED LEFT FWD WHCU BITE, PASSED, CLEARED FAULT HISTORY. THIS CLEARS MEL 30-11D.
WHILE PERFORMING MAINTENANCE ENGINE RUN ON #2 ENGINE, OBSERVED FUEL LEAKING FROM RIGHT VSV DRAIN (9 DROPS PER MINUTE). GROUNDED - YES. REMOVED/REPLACED #2 ENG R/H VSV ACTUATOR PER B737-900 AMM 75-31-01 OPS & LEAK CK GOOD.
WHILE PERFORMING MAINTENANCE ENGINE RUN ON #2 ENGINE, OBSERVED FUEL LEAKING FROM HPTACC DRAIN LINE (6 DROPS PER MINUTE). GROUNDED - YES. REMOVED HPTACC VALVE IAW B737-900 AMM 75-21-01 HPTACC SET IN PLACE WITH ALL NEW SEALS REF AMM 75-21-01-408-801-F00.
AT IDLE, RIGHT DUCT PRESSURE FLUCTUATED BETWEEN 7 PSI AND 10 PSI. GROUNDED - YES. REPLACED HIGH STAGE VALVE PER B737-900 AMM 36-11-06. REMOVED AND REPLACED #2 ENG HIGH STAGE REGULATOR REF AMM 36-11-07 VERIFIED #2 ENG DUCT PRESSURE WITHIN LIMITS REF AMM 36-11-00-710-801. RESTORED HIGH STAGE VALVE #2 ENGINE REF AMM 36-00-00-440-805.
#2 ENG FUEL LEAK FROM HEAT EXCHANGER. GROUNDED - YES. REMOVED MAIN OIL/FUEL HEAT EXCHANGER REF B737-900 AMM 79-21-02-000-801-F00. REPLACED #2 ENG MAIN OIL/FUEL HEAT EXCHANGER REF AMM 79-21-02-400-801-F00. OPS/LEAK CHECK GOOD.
#1 ENG ANTI-ICE INOP COWL VALVE OPEN LIGHT STAYS BRIGHT BLUE WITH SWITCH ON WITH N1 TAI IN AMBER. GROUNDED - YES. REMOVED & REPLACED #1 ENG COWL TAI VALVE REF B737-900 AMM 30-21-11.
AFTER ENGINE START #1 ENGINE COWL VALVE OPEN LIGHT REMAINED BRIGHT BLUE AFTER SELECTING ENG ANTI-ICE ON. TAI INDICATION ON # 1 N1 GAUGE REMAINED AMBER. GROUNDED - YES. PERFORMED B737-900 FIM 30-21 TASK 805, FOUND ENG #1 COWL TAI VALVE PERFORMING NORMAL. PERFORMED ENG IDLE RUN AS AN EXTRA PRECAUTIONARY MEASURE, ENG #1 COWL TAI VALVE PERFORMED NORMAL.
LEAK UNDER #2 ENGINE. GROUNDED - YES. REMOVED & REPLACED #2 ENGINE SERVO FUEL HEATER REF B737-900 AMM 73-11-07.
CONT CAB ZONE TEMP LIGHT ILLUMINATED ON MASTER RECALL LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED FD ZONE TRIM AIR MODULATING VALVE REF B737-900 AMM TASK 21-61-21.
FOUND DENT ON L/H HORIZONTAL STAB AT STA 170. GROUNDED - YES. DENT OVER RIB WITH TIPPED FASTENERS FOUND TO BE OUT OF LIMITS WITH B737-900 SRM 55-10-01-1A-1. REMOVED L/H HORIZONTAL STABILIZER LEADING EDGE AND END CAP REF. B737-900 AMM 27-41-21. REMOVED DAMAGED AREA ON L/H HORIZONTAL STABILIZER LEADING EDGE SKIN. FABRICATED REAR DOUBLER AND FILLER OUT OF 2024 T3 .050 P0 # 900961 (DOUBLER) AND 2024T3 .040 P0 1054620. DRILLED INITIAL HOLES IN REAR DOUBLER. REF SRM 55-10-01-2R-1, REPAIR 1. ACCOMPLISHED REPAIR REF. SRM 55-10-01-2R-1. REMOVED AND REPLACED DAMAGED RIB REF. SRM 51-40-27. INSTALLED L/H HORIZONTAL STABILIZER LEADING EDGE AND END CAP REF. AMM 27-41-21.
GWTAI VALVE SOLENOID TEST FAILED DURING MW0311 HARNESS INSTALLATION TEST FOR #2 ENGINE. REF. AMM 30-11-12-710-801 AND TSR713934. GROUNDED - YES. REPLACED THE GWTAI SOLENOID REF B737-900 AMM 30-11-12. NO HELP. REPLACED THE PRECOOLER VALVE PER AMM 36-12-02. OPS CK GOOD. ETOPS GROUND VERIFICATION SUCCESSFUL. GWTAI SOLENOID VALVE PASSED REF AMM 30-11-12.
ZONE TEMP CONTROL CABIN ILLUM ON RECALL THEN RESETS WITH MC RESET. GROUNDED - YES. PERFORMED PZTC BITE REF B737-900 FIM 21-62 TASK 801. CONTROLLER 2 FAULTED FLT DECK TRIM VALVE. PUSHED VERIFY AND GREEN GO LIGHT ILLUMINATED. FOUND FLIGHT DECK TEMP SENSOR COVERED IN DUST. CLEANED TEMP SENSOR REF B737-900 AMM 21-61-14. OPERATED BOTH PACKS. NO FAULTS ON MASTER CAUTION RECALL. PERFORMED PZTC BITE. NO FAULTS.
FOLLOW-UP TO REPORT OF #2(RH) BLEED PRESSURE ISSUE AND RIGHT BLEED AIR C/W FOUND OPEN. GROUNDED - YES. REMOVED AND REPLACED #2 BLEED AIR REGULATOR REF AMM 36-11-03/401.
#1 ENGINE TREND DATA SHOWS A RAPID RISE IN LOW PRESSURE ROTOR VIBRATION LEVELS AFTER ENGINE INSTALLATION. GROUNDED - YES. REMOVED #1 ENGINE ESN 874470. REF ASA SHOP W/O 1944222.
WHILE ACCOMPLISHING ASA T/C 78472010 IT WAS NOTED THAT ALL FAN BLADE SHIMS FOR THE #1 ENGINE TO BE WORN. GROUNDED - YES. REMOVED #1 ENGINE ESN 874470. REF ASA SHOP W/O # 1944222.
WHILE ACCOMPLISHING T/C 78472010 FOUND 18 FAN BLADES WITH BLADE SHANK WEAR BEYOND AMM PUBLISHED LIMITS REF B737-900 AMM 72-21-02-200-801-F00 STEP F.1 (E)3)B)<1>. GROUNDED - YES. REMOVED #1 ENGINE ESN 874470. REF ASA SHOP W/O # 1944222.
WHILE CHANGING THE #1 ENG 3 O'CLOCK STRUT WIRING HARNESS REF TSR713877 FOUND LPT DUCT GASKET DISLODGED FROM LPT MANIFOLD DOWNSTREAM OF LPTACC VALVE. GROUNDED - YES. REPLACED LPT DUCT GASKET PER B737-900 AMM SUBTASK 75-22-04-420-009-F00. LEAK CHECKED OKAY.
WHILE PERFORMING INSTALLATION TEST OF MW0311 HARNESS, "BLEED AIR REGULATOR OPERATIONAL TEST", FOUND #1 ENGINE BLEED PSI WOULD NOT GO ABOVE 10 PSI. GROUNDED - YES. PERFORMED #1 ENGINE BLEED AIR SYSTEM HEALTH CHECK PER TASK CARD #NG-36WC-00001, FOUND HIGH STAGE REGULATOR AND HIGH STAGE VALVE FAILED, REMOVED AND REPLACED HSR AND HSV PER B737-900 AMM 36-11-07 AND 36-11-06, OPS CHECK GOOD, HEALTH CHECK SUCCESSFUL, LEAK CHECK GOOD, PER AMM 73-21-06-400-802-F00, PERFORMED PARAGRAPH 5.F (1)(C)2 TO END OF TASK CARD, OPS CHECK NORMAL, ALL PARAMETERS NORMAL.
DURING CLIMB JUST PRIOR TO LEVEL OFF, # 1 ENG VIBE. VIBE 4.1 CONSULTED QRH, DURING THIS TIME A/C LEVELED AT FL 340 & THRUST REDUCED. VIBE REDUCED TO 3.0 10 MINUTES LATER VIBE AT 2.5. GROUNDED - YES. REMOVED #1 ENGINE ESN 874470. REF ASA SHOP W/O 1944222.
ZONE TEMP FOR CONT CAB ILLUMINATED WITH RECALL. RAN QRH EXT WITH RESET. GROUNDED - YES. ACCOMPLISHED TEMP CONTROLLER BITE. B737-900 AMM TASK 21-61-00-700-806-002 #2 CONTROLLER FLT DECK TRIM VALVE SHOWED FAULT. AFTER RESET BITE PASSED. OPS GOOD PER AMM TASK 21-61-00-700-811-002.
DURING LEAK CHECK FOR RIGHT VSV ACTUATOR REF ASA L/P 60538328. L/H VSV ACTUATOR WAS LEAKING #1 ENG. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE. ITEMS CARRY FORWARD ON ASA SHOP W/O 1942683 N/R 00002.
DURING INSTALL OF R/H VSV ACTUATOR #1 ENG, FOUND 3RD STAGE VSV RING BUSHING MISSING. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE. ITEMS CARRY FORWARD ON ASA SHOP W/O 1942683 N/R 00003.
#1 ENGINE RIGHT VSV DRAIN IS LEAKING DURING THE HPTACC VALVE INSTALLATION TEST. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE. ITEMS CARRY FORWARD ON ASA SHOP W/O 1942683 N/R 00001.
DURING SHUTDOWN ON THE #1 ENGINE, FOUND FUEL LEAK UNDERNEATH FAN COWLING. GROUNDED - YES. PERFORMED ENGINE VENTS AND DRAINS INSPECTION PER B737-900 AMM TASK 71-71-00-200-801-F00 FOUND FUEL LEAKING FROM THE HPTACC VALVE DRAIN AT A RATE OF 40 DPM. FUEL STOPS DRIPPING FROM HPTACC VALVE DRAIN APPROX 2 MINS AFTER SHUTDOWN. REMOVED AND REPLACED #1 ENG HPTACC VALVE PER AMM 75-21-01.
REF. DEFECT # 60250576. W/O 1938860. TASK CARD N/R-00001. DURING DAY MOTOR LEAK CHECK OF #2 ENGINE AFT SUMP CHIP DETECTOR FOUND RIGHT VSV ACTUATOR LEAKING PAST SERVICEABLE LIMITS. GROUNDED - YES. ISOLATED FUEL LEAK COMING FROM DRAIN PORT ON ACTUATOR REF B737-900 AMM 75-31-01. HEAD AND ROD SHROUDS AND NIPLES ALONG WITH ACTUATOR DRAIN TUBE ALL DISCONNECTED UPPER RH SHROUD SEGMENT RMVD. D. DOVE 30236 01-21-2023. REMOVED & REPLACED RH VSV ACTUATOR, REF B737-900 AMM 75-31-01. ALL OPS CHECKS & LEAK GOOD.
DURING DRY MOTOR LEAK CHECK OF # 2 ENGINE AFT SUMP CHIP DETECTOR. FOUND LEFT VSV ACTUATOR LEAKING FROM DRAIN MAST. (REF ASA DEFECT 60250576, ASA W/O 1938860, ASA TASK CARD N/R-00001). GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE LEFT VSV ACTUATOR IAW B737-900 AMM 75-31-01-400-801-F00 STEP F (1) TO (6) REMOVED AND REPLACED HIGH STAGE VALVE COUPLINGS IAW AMM 36-11-06 LEAK CHECK DUE COMPLETED #2 ENG VSV (LEFT) ACTUATOR INSTALLATION REF AMM 75-31-01-400-801-F00. VSV ACTUATOR LEAK TEST GOOD, IDLE LEAK CHECK GOOD, ACTUATORS TEST GOOD. ALL LEAKS & OPS CHECKS GOOD. OK FOR SERVICE. ORIG SUB DATE: 1/25/2023
DURING CLIMBOUT, RIGHT DUCT PRESS WAS SPIKING 10 TO 15 PSI ABOVE LEFT DUCT PRESSURE. DURING DESCENT, LEFT DUCT PRESSURE 10 PSI, RIGHT DUCT PRESSURE 30 PSI. GROUNDED - YES. REMOVED AND REPLACED HSR VALVE PER B737-900 AMM 36-11-07-000-801 & 36-11-07400-801. ACCOMPLISHED ENG BLEED AIR CROSSOVER OPERATIONAL TEST REF AMM 36-11-00-710-801 DUCT PRESSURES WITHIN LIMITS.
ZONE TEMP LIGHT CONT CABIN ILLUMINATED DURING MASTER CAUTION RECALL. RESETS WITH MASTER CAUTION RESET. GROUNDED - YES. TROUBLESHOT REF B737-900 FIM 21-62 TASK 832 REPLACED CONTROL CABIN TRIM AIR VALVE REF B737-900 AMM 21-61-21. ORIG SUB DATE: 1/4/2023
GEN 2 DRIVE LIGHT ILLUMINATED IN FLIGHT. PER ASA QRH DISCONNECTED DRIVE. GROUNDED - YES. #2 ENG IDG DIFFERENTIAL PRESSURE INDICATOR POPPED. REMOVED AND REPLACED #2 ENG IDG REF B737-900 AMM 24-11-11-400-801.
CONT CABIN ZONE TEMP LIGHT ILLUMINATED. RESETS W/ MASTER CAUTION. GROUNDED - YES. PERFORMED B737-900 FIM 21-61 TASK 858, OPS CHECK NORMAL NO DEFECTS NOTED AT THIS TIME.
"FEEL DIFF PRESS" LIGHT AND "SPEED BRAKE DO NOT ARM" LIGHT ILLUMINATED ON TAKEOFF. HYD PRESSURES NORMAL. GROUNDED - YES. AIR TURNBACK - CREW REPORTED HE FELT A MOMENTARY BUMP BUT WHEN HE CHECKED THE HYDRAULIC PRESSURE INDICATOR IT WAS NORMAL. DUPLICATED PROBLEM WITH PSEU IN AIRMODE AND S1131 DEACTIVATED. RMVD & RPLCD SPEED BRAKE GND SENSOR S1131 REF B737-900 AMM 27-62-61-000-804/-400-809. OPS NML REF AMM 27-62-61. AIRCRAFT JACKED AND VERIFIED SPEED BRAKE GND PROX SNSR S1131 MOVES TO "FAR" ARMED SPEED BRAKES IN AIR. NO FEEL DIFF LT OR SPD BRK DO NOT ARM LT. DOWNJACKED A/C AND VERIFIED SPD BRAKE LTS/ FEEL DIFF LT REMAIN OUT. ACCOMPLISHED AUTOSTOW ACTUATOR GROUND TEST NO DEFECTS NOTED. ACTIVATED AUTOSPEED BRAKES HIGHSPEED SIM. NO DEFECTS NOTED. 4 EA CBS PULLED/TAGGED AND RESET. SPD BRAKE OP CHK GOOD. REF AMM 27-62-61 & 27-62-61-720-801.
AFTER ENG START AND DURING THE AFTER START CHECK LIST RIGHT PACK LIGHT ILLUMINATED WHEN MASTER CAUTION RECALL PUSHED. THE LIGHT WENT OUT WITH THE MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED BITE CHECK OF R PACK ZONE TEMP CONTROLLER IAW B737-900 FIM 21-62 TASK 801. PREVIOUS LEGS FAULTED R PACK TCV. ACCOMPLISHED FIM 21-62 TASK 831. GREEN LIGHT ILLUMINATES DURING VERIFY. PACK LIGHT DOES NOT ILLUMINATE DURING MASTER CAUTION RECALL.
GE DIAGNOSTICS REPORTS #1 ENGINE (SN 962559) TREND DATA SHOWS A DELTA EGT INCREASE. DELTA FUEL FLOW AND CORE SPEED REMAIN STABLE. INDICATION ERRORS ARE SUSPECTED. CNR 20220926002. GROUNDED - YES. REMOVED AND REPLACED T49.5 S3 PROBE SENSOR REF. B737-900 AMM 77-21-01-801-FOO.
ON WALK AROUND, FOUND #2 ENG AFT SUMP AREA LEAKING OIL. GROUNDED - YES. FOUND TURBINE REAR FRAME OIL INLET COVER LEAKING, REPLACED OIL INLET COVER DUE TO WEAR SURFACES ON INSIDE OUT OF LIMITS. IAW B737-900 AMM 72-56-00-200-801-F00 PARAGRAPH E. (7). REPLACED OIL SUPPLY TUBE NIPPLE REF. AMM 72-56-00.
DURING FUELING, FUEL SPILLING OUT OF RIGHT WING VENT. GROUNDED - YES. REMOVED AND REPLACED THE #2 COMP PROBE REF B737-900 AMM 28-41-21-400-801, OPS NML REF AMM 28-41-00-730-801.
R2 DOOR EMERGENCY LIGHTS GO OUT BEFORE 15 MINUTES. GROUNDED - YES. REPLACED AND OPS TESTED GOOD R2 DOOR EMERGENCY LIGHT BATTERY PACK S/N 216828 IAW B737-900 AMM 33-51-06-960-805 AND 33-51-06-200-801.
L1 DOOR EMERGENCY LIGHT GO OUT BEFORE 15 MINUTES. GROUNDED - YES. REMOVED AND INSTALLED SERVICEABLE L1 DOOR EMERGENCY LIGHTS BATTERY PACK S/N 216843, OPS CHECK GOOD AIW B737-900 AMM 33-51-06-960-805 AND 33-51-06-200-801.
DURING #2 ENG IDLE LEAK CHECK, HPTACC DRAIN LEAKING FUEL, APPROX 6 DROPS PER MIN. GROUNDED - YES. (RESOLVED ON W/O: 1912933 TASKCARD: N/R-00003 ) REMOVED AND REPLACED #2 ENG HPTACC VALVE IAW AMM 75-21-01. HPTACC VALVE INSTALLATION TEST PASSED. THIS CLEARS PLT SEAMC ARNIE ADVISED.
GE DIAGNOSTICS REPORTS THE #1 EXPERIENCED AN EGT EXCEEDANCE DURING TAKEOFF THAT MAY HAVE EXCEEDED THE TRANSIENT AREA LIMITS. PEAK EGT RECORDED ON REPORT 06 WAS 959C FOR #1 ENGINE. DURING TAKEOFF. (FLIGHT PHASE 4.) GROUNDED - YES. ENGINE 1 - EGT TIME 0:00:04 PEAK 959 QTY 1EGT RED LIMIT - PEAK 958.5 - RED 950.0 0:04.8 FLIGHT ASA 746 12 APRIL22 20:43 Z ALT 1698 A/S 186 FIRST MAINTENANCE ACTION FOR THIS DISCREPANCY IS TO CHECK FMC/CDU FOR EGT FAULTS. CHECK OF #1 ENGINE FAULTS SHOWED 9 LEGS OF LEFT LOWER EGT PROBE (S3) BAD. REF LOG PAGE #60352439 FOR REPLACEMENT OF S3 EGT PROBE. CONSULTED WITH TECH SERVICES - GE SUSPECTED EGT INDICATION ISSUES AND EGT PROBE S3 REPLACEMENT IS AN ACCEPTABLE CORRECTIVE ACTION FOR THIS DISCREPANCY. NO FURTHER ACTION REQUIRED.
#1 ENG SHOWING EGT EXCEEDANCE. GROUNDED - YES. VERIFIED ENG #1 EXCEEDANCE REF B737-900 AMM 71-00-00-740-801. ACCOMP EEC BITE ON ENG #1 REF B737-900 FIM 73-00 TASK 801. RECORDED BOTTOM LEFT EGT SIGNAL OUT OF RANGE LAST 10 FLT LEGS. ACCOMP FIM 77-21 TASK 803 TEMPS WITHIN RANGE. ACCOMPLISHED T49.5 PROBE AND EGT SYS INSP REF AMM 77-21-01-200-801-F00. #3 PROBE RESISTANCE OUT OF LIMITS. ALSO RECORDED HIGH RESISTANCE PINS B- & U- J10 THROUGH #3 EGT PROBE. ACCOMP EGT CONNECTOR CLEAN REF AMM 77-21-00-140-801 ALL RESISTANCE VALUES NOW WITHIN RANGE. RMVD & RPLCD # 3 EGT PROBE PRECAUTIONARY REF AMM 77-21-01. GROUND VERIFICATION SUCCESSFUL.
LEFT FLIGHT DECK CONT CAB/FLIGHT DECK CONTROL ZONE TEMP LIGHT ILLUMINATED ON RECALL. IT RESET WHEN MASTER CAUTION PUSHED. QRH 2.22 COMPLETE. GROUNDED - YES. ACCOMPLISHED BITE PROCEDURE FOR BOTH PACK TEMPERATURE CONTROLLERS PER B737-900 FIM 21-62 TASK 801, BOTH CONTROLLERS LOGGED FLIGHT DECK TRIM VALVE FAULT. C/W FIM 21-62 TASK 833 AND CIRCUIT BREAKER RESET PROCEDURE, FAULT CLEARED.
FUELER SHOWED UP AT 1841Z WAS HAVING PROBLEMS W/THE FUELING PANEL. FINALLY GOT THE MAIN TANKS FUELED BUT COULDN'T FUEL THE CENTER TANKS. REQ AK MX AT 1910Z CENTER FUEL TANK QTY GAUGE IS INOP COCKPIT GAUGE IS WORKING. GROUNDED - YES. VERIFIED FUEL PANEL CENTER GAUGE INOP OUTSIDE. RMVD AND INSTALLED NEW CENTER TANK REFUEL QTY INDICATOR REF B737-900 28-41-61/401. PERFORMED SYS OPS TEST. CHKS NML.
LEFT DUCT PRESSURE 4 PSI RIGHT DUCT PRESSURE 35 PSI FOR FIRST 50 MIN OF FLY, DUCT PRESSURE NORMAL FOR REMAINDER AT 35 PSI (VERBAL FROM PILOTS: 39,000 FT ALT FAULT OCCURRED). GROUNDED - YES. REF B737-900 FIM 36-10 TASK 804 DUCT PRESS LOW, #1 ENG BLEED AIR SOURCE. REF FIM 36-10 TASK 813 ENG BLEED AIR DISTRIBUTION SYS LEAK CK, REF FIM 36-10 TASK 812, PNEU T/C USING PNEU TESTER. SUPPLIED AIR TO PRECOOL VALVE, PRSOV & BLEED AIR REG NO DEFECTS NOTED. LEAK DETECTED ON PRSOV CONT PRESS SENSE LINE. R/R PRESS SENSE LINE REF B737-900 AMM 36-11-04. NO LEAK DETECTED. PERF HI ENG POWER RUN FOR ENG BLEED AIR CROSSOVER TEST. WITH BOTH ENG AT IDLE BLEED 1 AND OFF, APU BLEED OFF, BOTH PACKS OFF AND ISOL VALVE CLOSED, #1 ENG BAR FAILS TO OPEN/CLOSE (INTERMITENTLY). R/R #1 ENG BAR REF AMM 36-11-03/401. LEAK/INSTL TEST GOOD. ACCOMP CROSSOVER CHECK PER AMM 36-11-00-710-801 OPS CHECKED GOOD.
AFTER LANDING "APU FAULT LIGHT" ILLUMINATED DURING START ATTEMPT. GROUNDED - YES. T/S CODE 49-41011, REPLACED EXCITER, IGNITION UNIT IN REF TO B737-900 AMM 49-41-31. PERFORMED 2 SUCCESSFUL STARTS OPS CHECKED GOOD. GROUND VERIFICATION GOOD.
REF L/P 60242308 AND L/P 6024309. #2 ENG FAN BLADE # 2, # 5, # 14 AND # 20 AND # 21 NEED REPLACED. GROUNDED - YES. REMOVED AND REPLACED END FAN BLADE # 8, # 9 AND # 17 AS PAIRS TO # 5, #20 AND # 21. REF T/C 78472010.
REF L/P 60242308 #2 ENG FAN BLADE #20 REPLACEMENT. GROUNDED - YES. REMOVED AND REPLACED #20 FAN BLADE ON #2 ENG REF T/C 78472010.
WHILE ACCOMPLISHING T/C 78472010 FOUND ON ENG #2 BLADE 21 NICK IS OUT OF LIMITS. REF L/P 60026683 FOR PREVIOUS WRITE UP. GROUNDED - YES. REMOVED AND REPLACED FAN BLADE #21 ON #2 ENG REF T/C 78472010.
AFTER ENGINE START CONTROL CABIN "ZONE TEMP" LIGHT ON. GOES OUT WITH MC RESET. GROUNDED - YES. (RESOLVED ON W/O: 1894001 TASKCARD: N/R-00001 ) REMOVED & REPLACED FLT DECK TRIM AIR VLV LK & OPS NORMAL REF B737-900 AMM 21-61-21. ACCOMP PZTC BITE CK NO FAULTS FOUND REF AMM 21-61-00. ACFT RELEASED FROM MEL 21-21G C/N# 04048409 REMOVED SEAMC TODD NOTIFIED.
WHILE ACCOMPLISHING T/C 78472010 FOUND ON ENG #2 THE SPACERS FOR THE BLADES #2, #3, #17, #18 ELASTOMER IS DISBONDED. GROUNDED - YES. REMOVED AND REPLACED ENG #2 SPACERS #2, 3, 17, 18 PER T/C 78472010.
WHILE ACCOMPLISHING T/C 78472010 FOUND CU-NI-IN COATING MISSING OUT OF LIMITS. ON ENG #2 BLADES #2, #5, #14, #20. GROUNDED - YES. REMOVED AND REPLACED FAN BLADES #2, #5, #14 AND #20 REF T/C 78472010 REF L/P 60242310 FOR BLADE #20.
ATTEMPTED #2 ENGINE START ON IGN L WITH NO START, ABORTED START, SWITCHED TO IGN R WITH NORMAL START. GROUNDED - YES. FOUND DAMAGE ON # 2 ENG L IGNITER PLUG. REMOVED AND REPLACED PLUG REF B737-900 AMM 74-21-02. OPS CK GOOD. # 2 ENG STARTS NORMAL WITH SWITCH IN IGN L POSITION. GROUND VERIFICATION SUCCESSFUL.
CONTROL CABIN ZONE TEMP LIGHT ILLUMINATES ON RECALL EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PZTC BITE REF B737-900 AMM 21-61-00-700-806-002. PREV FLT LEGS SHOW A FAULT FOR THE FLT DECK TRIM VALVE. FAULT CLEARED UPON VERIFICATION. GROUND VERIFICATION SUCCESSFUL.
HF RADIO #2 WILL NOT TRANSMIT WHEN TUNING, THE TUNING TONE IS VERY LONG (10-15 SECONDS) AND ABOUT HALF THE TIME NUMEROUS HF FREQUENCIES IT FAILED TO TUNE AT ALL. WE WERE ABLE TO RECEIVE A GOOD SELCAL CHECK ON HF2 BUT UNABLE TO TRANSMIT FROM EITHER CA OR FO SIDE. WE WERE ABLE TO RECEIVE ON HF2 ALSO. GROUNDED - YES. REPLACED #2 HF - TRANSCEIVER IAW B737-900 AMM 23-11-21-400-801. GROUND VERIFICATION CHECK NORMAL. AIRCRAFT OK FOR SERVICE.
MIDWAY THOUGH THE FLIGHT VNAV DISCONNECT ROUTE DUMPED FROM THE FMC BOTH SIDES - REBUILT ROUTE NO FURTHER PROB. GROUNDED - YES. REF. B737-900ER FIM 34-61 TASK 836. PERFORMED FMC RESET OPS TEST NORMAL.
DURING CRUISE WE RECEIVED AN FMC DISAGREE MESSAGE. MESSAGE WENT AWAY WITHIN SECONDS. DURING SHUTDOWN WE RECEIVED THE SAME MESSAGE AND AGAIN IT WENT AWAY WITHIN SECONDS. GROUNDED - YES. ACCOMPLISHED FMC BITE PER B737-900ER FIM 34-61 TASK 801. NO FAULTS LOGGED. A/C OK FOR SERVICE.
DURING CRUISE #1 GENERATOR FREQUENCIES SHOWED 394. AFTER LANDING #1 GENERATOR FREQUENCIES DROPPED TO 392. GROUNDED - YES. REMOVED AND REPLACED #1 IDG REF B737-900ER AMM 24-11-11-400-801. REMOVED IDG FILTERS TO CHECK FOR CONTAMINATION ON REMOVED IDG, NO CONTAMINATION FOUND REF AMM 24-11-11-080-801. LEAK AND OPS CK GOOD REF AMM 24-11-11-400-801.
AT CRUISE FL340, LEFT "BLEED TRIP OFF" AMBER LIGHT ILLUMINATED, LEFT DUCT PRESSURE INDICATED ZERO PSI. WE PUSHED TRIP RESET BUTTON PER QRH PROCEDURES AND BLEED TRIP OFF" LIGHT EXTINGUISHED AND LEFT DUCT PRESS INDICATION MATCHED RIGHT DUCT PRESS. IND. GROUNDED - YES. ACCOMPLISHED #1 ENG BLEED AIR SYSTEM HEALTH CHECK TASK CARD NG-36WC-00001 & FOUND PRECOOLER VALVE FAILED TEST. REMOVED #1 ENG PRECOOLER VALVE REF B737-900 AMM 36-12-02-000-201 & INSTALLED SERVICEABLE PRECOOLER VALVE REF AMM 36-12-02-400-801. LEAK & OPERATIONAL TEST GOOD. REF AMM 36-11-00-710-801 & TASK CARD NG-36WC-00001 FOR ENGINE HIGH PWR RUN & HEALTH CHECK TASK CARD NG-36WC-00001. DUCT PRESSURE WITHIN LIMITS NOW.
ON CLIMBOUT, DUCT PRESSURE DIFFERENTIAL NOTED AT GREATER THAN 20PSI (R 42PSI / L 45PSI). ON LEVEL OFF AT FL340 DUCT PRESSURE NOTED AT R 43PSI / L 26PSI. GROUNDED - YES. ACCOMPLISHED #1 ENG BLEED AIR SYSTEM HEALTH CHECK TASK CARD NG-36WC-00001 & FOUND PRECOOLER VALVE FAILED TEST. REMOVED #1 ENG PRECOOLER VALVE REF B737-900 AMM 36-12-02-000-201 & INSTALLED SERVICEABLE PRECOOLER VALVE REF AMM 36-12-02-400-801. LEAK & OPERATIONAL TEST GOOD. REF AMM 36-11-00-710-801 & TASK CARD NG-36WC-00001 FOR ENGINE HIGH PWR RUN & HEALTH CHECK TASK CARD NG-36WC-00001. DUCT PRESSURE WITHIN LIMITS NOW.
DURING CLIMB DUCT PRESS L DUCT PRESS 18 PSI RIGHT DUCT 40 PSI. WHEN LEVELED AT FL 370 R DUCT 40 PSI & LEFT 28 PSI. GROUNDED - YES. INSPECTED #1 ENGINE PNEUMATIC SYSTEM AND FOUND SENSE LINE BETWEEN BLEED AIR REGULATOR AND PRE-COOLER CONTROL VALVE TO BE CRACKED AT THE T-UNION. REMOVED & REPLACED SENSE LINE REF B737-900 AMM 36-11-03. COMPLETED ENGINE BLEED AIR SYSTEM CROSSOVER OPS TEST REF 36-11-00-710-801. OPS TEST GOOD. ALL ENGINE PNEUMATIC INDICATIONS NORMAL. NO BLEED TRIP LIGHT ILLUMINATED AT THIS TIME.
DURING T/C NG-21EA-23228-1 FOUND ZONE TRIM VALVE FAULT ON ZONE TEMP CONT 1. GROUNDED - YES. REF B737-900 FIM 21-62 TASK 835 FOUND AFT CABIN TRIM AIR MODULATING VALVE TO BE BAD. REMOVED AND REPLACED AFT CABIN TRIM AIR MODULATING VALVE REF B737-900 AMM 21-61-21. NO LEAKS NOTED. PERFORMED BITE TEST, TEST PASSED.
WHILE WORKING TASK CARD 78233002 FOUND CENTER AISLE CEILING EMERGENCY EXIT LIGHT MISSING ACCESS COVER PANEL. GROUNDED - YES. INSTALLED NEW ACCESS COVER TO EMERGENCY EXIT CEILING PANEL. REF B737-900 IPC 33-51-01.
FLT DECK TRIM VALVE FAULT APPEARED WHILE PERFORMING #2 PZTC BITE CHECK FOR LL2 PER FIM 21-62 TASK 801. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 21-62 TASK 832. NO DEFECTS NOTED.
ENG 2 SYS B FIRE OVERHEAT HARD FAULT, SYS A OK. GROUNDED - YES. ENG #2 FIRE DETECTION OPERATIONAL TEST GOOD. CONTROL MODULE BIT SHOWS NO FAULTS. CONTROL MODULE REMOVED AND FIRE DETECTOR RANG OUT AT LOOPS B PINS 12 TO 2 AND 12 TO 10: BOTH WITHIN TOLERANCE (867 OHMS AND 1.8 OHMS). COMPARED TO LOOP A: SAME READINGS. ALL REF B737-900 FIM 26-10 TASK 805. MODULE RE-INSTALLED. OPERATIONAL TEST GOOD AND REPAIR CONFIRMATION GOOD REF FIM 26-10 TASK 805. GROUND VERIFICATION SUCCESSFUL. LOOP SWITCH IN FLIGHT DECK RETURNED TO NORMAL.
DURING DRIVE PAD LEAK CHECK FOUND #1 ENGINE RIGHT VSV DRAIN LINE LEAKING 10 DROPS MIN. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE RIGHT VSV ACTUATOR REF B737-900 AMM 75-31-01. LEAK CHECK GOOD.
ON WALK AROUND FOUND DENT IN SIDE OF FUSELAGE 3 FEET AFT OF LAV SERVICE DOOR. MIG 2C INITIATED 40-0003754. A. TEMPLEMAN 98950. GROUNDED - YES. (RESOLVED ON W/O: 1869060 TASKCARD: N/R-00001 ) CUT OUT DAMAGED SKIN AND REPAIRED AREA REF ASA EA 900ER -53EA-23385 REV 00 DATED 04-14-2021SEAMC NOTIFIED JARED.
FO FMC ENTRY KEY CONTROLS BRIGHTNESS. GROUNDED - YES. PERFORMED FMC SYS BITE REF B737-900 FIM 34-61 TASK 801, OPS CHECK GOOD, OK FOR SERVICE.
FO EXEC KEY PRODUCES RANDOM CHARACTERS. GROUNDED - YES. REMOVED & REPLACED F/O'S MCDU KEYBOARD REF B737-800 AMM 34-61-01 2 C/B OPEN & CLOSED, OPS NORMAL.
WHEN IN FULL BRIGHT, FIRST OFFICERS MCDU SCREEN FLASHES ABOUT ONE PER SECOND. GROUNDED - YES. CHECKED AND COULD NOT DUPLICATE INTENSITY OR FLASHING ISSUE. AS A PRECAUTION REMOVED AND REPLACED FO'S MCDU PER B737-900 AMM 34-61-01. INSTALLATION TEST SUCCESSFUL.
CAPT SIDE MCDU MALFUNCTIONING, EXEC BUTTON DOES NOT EXECUTE. IN ACARS AOC MENU BUTTONS 1RT, 2R, 3R NOT FUNCTIONING PROPERLY THEY BRING UP WRONG MENU PAGE. GROUNDED-YES. VERIFIED DEFECT. REMOVED & REPLACED CAPT MCDU, VERIFIED SOFTWARE P/N, INSTALLATION TEST GOOD, REF B737-900 AMM 34-61-01/401.
DURING LL1 FOUND ENGINE 1 FIRE LOOP B SHOWS FAULT. GROUNDED-YES. CLEANED CONNECTORS OF FIRE DETECTION HARNESSES MW0325, MW0326 CHECKED ALL CONNECTIONS. ACCOMPLISHED GVI OF FIRE LOOPS OPERATIONS CHECK NORMAL, REF B737-900 AMM 26-11-00.
LEFT PACK LIGHT ILLUMINATED. EXTINGUISHED WHEN MASTER CAUTION LIGHT IS RESET. GROUNDED-YES. ACCOMPLISHED NR 1 PACK TEMP CONTROL BITE AND HAD RAM AIR ACTUATOR FAULT, REF B737-900 FIM 21-62 TASK 801. REMOVED AND REPLACED LT RAM AIR INLET ACTUATOR, REF B737-900 AMM 21-51-21. OPERATIONS CHECK GOOD WITH NO FAULTS FOUND. GROUND VERIFICATION SUCCESSFUL.
LEFT PACK LIGHT ON MASTER CAUTION RECALL. GOES OUT ON MASTER CAUTION RESET. GROUNDED-YES. PACK ZONE TEMP CONTROLLER BITE, PER B737-900 FIM 21-62 TASK 801. SHOWED BIT AND PREV FLT FAULTS FOR LEFT PACK RAM AIR ACTUATOR, BUT VERIFY TEST DID NOT CONFIRM FAULT. ACCOMPLISHED RAM AIR SYSTEM OPERATIONAL TEST, PER B737-800 AMM 21-51-00-730-802. SEVERAL TIMES ALL TESTS PASS.
PRSOV ON THE NR 1 ENGINE FAILED THE MANUAL WRENCH CHECK (BINDS), PER T/C N8010004. GROUNDED-YES. REPLACED THE NR 1 ENGINE PRSOV, REF AMM 36-11-04. OPERATIONS TEST PASSED.
REF T/C AD20201651-NG-36-1 NR 1 ENGINE 5TH STAGE VALVE FAILED INSPECTION, FLAPPER STUCK CLOSED DUE TO CORROSION. GROUNDED-YES. REPLACED NR 1 ENGINE 5TH STAGE VALVE, AS REQUIRED PER T/C AD20201651-NG-36-1 REF B737-900 AMM 36-11-02. OPERATIONS AND LEAK CHECKS GOOD.
FWD PIT RT TRANSITION PANEL CORRODED AT STA 500K. GROUNDED - YES. BLENDOUT CORROSION ON R/H TRANSITION PNL IN FWD CARGO PIT, FOUND TO BE OUT OF LIMITS IAW SRM 53 30 53 01 2 FABRICATED,LOCATED AND DRILLED AND INSTALLED NEW REPAIR PARTS IAW SRM 53-00-53-2R-5 REPAIR 5.
ENG 1 OVERHEAT & FIRE DETSHOWS FAULT ON LOOP B. GROUNDED - YES. ACCOMPLISHED OPERATIONAL TEST AND BITE TEST OF THE FIRE DETECTION SYSTEM. NO FAULTS CURRENT. REMOVED AND REPLACED NR 1 ENGINE CORE DETECTORS M1759, M1760, AND M0326 HARNESS IAW AMM 26-11-01/401 AND AMM 26-11-02/401. GROUND VERIFICATION TEST IS GOOD.
NR 1 ENGINE, B FIRE LOOP WAS INOPERATIVE. GROUNDED - YES. PERFORMED FIM 26-10 TASK 801. FOUND NO FAULTS ON BITE OR FROM FIRE LOOP TEST IN FLIGHT DECK. PERFORMED GVI OF THE FIRE LOOPS FOR THE NR 1 ENGINE. FOUND A BROKEN GROUND TERMINAL ON CORE LOOP B. REPAIRED THE BROKEN GROUND TERMINAL IAW SWPM 20-30-11. PERFORMED THE BITE AND LOOP TEST. STILL NO FAULTS FOUND.
L/H ENG BLEED AIR CROSSOVER CHECK FAILS AT POWER SETTINGS BELOW 50% N1. PRESSURES BELOW LIMITS, THROTTLES ADVANCED AND RETARDED. GROUNDED - YES. REMOVED AND REPLACED #1 ENG HIGH STAGE VALVE, REF B737-900 AMM 36-11-06, REQUIRES INSTALLATION TEST. LEAK CHECKED GOOD PER AMM 36-11-06. ACCOMPLISHED ENGINE BLEED AIR CROSSOVER OPERATIONAL TEST PER AMM 36-11-00-710-801. TEST GOOD, NO DEFECTS.
# 1 FIRE DETECTION B LOOP INOP. GROUNDED - YES. CYCLED A/C POWER THEN PERFORMED ENGINE/APU FIRE DETECTION CONTROL MODULE BITE WITH NO FAULTS FOUND. GROUND VERIFICATION SUCCESSFUL REF B737-900 FIM 26-10 TASK 801.
L1 WINDOW HEAT OVERHEAT LT ILLUMINATED. GROUNDED - YES. BOTH L1 WINDOW SENSORS ARE OPEN REF B737-900 AMM 30-41-21-760-801. 2 C/B'S PULLED & MIG 51A ATTACHED P18-3 E1 AND P6-11 B9. R/R FWD LH WINDSCREEN IAW AMM 56-11-11-000-801/400-801. PULLED/COLLARED 12 CB'S FOR WINDOW REMOVAL. ACCOMPLISHED G.9 PRESS CK ACCOMP'D AMM 56-11-11-400-801. RMVD TAGS & RESET 14 EA CB'S. 2EA CB'S PULLED/TAGGED/TAGS RMVD & CB'S RESET. 9EA C/B'S PULLED, TAGGED, TAGS RMVD CB'S RESET. REQ'S SAFTY WIRE WINDSHIELD WIPER ACCMP'D AMM 56-11-11-400-801. TRANSFERRED TO LOG PAGE 12113031. PER B737-900 AMM 56-11-11 SEALED WINDOW WITH QUICK CURE SEALANT PER EA 5100-01004 AND TAPED. WINDOW CHANGE COMP PER AMM 56-11-11 T. OPS CKS NORMAL.
SPINNER FRONT CONE MORE 50 PERCENT WHITE ON #2 ENGINE. GROUNDED - YES. INSTALLED FRONT SPINNER CONE PER T/C 78472010.
WX RADAR INOP-C/B POPPED. GROUNDED - YES. INSPECTED WIRING CIRCUIT-NORMAL. NO HISTORY REF B737-900 WDM 34-41-11. RESET WX RADAR C/B ON P6-1 REF B737-900 AMM 20-60-01 GRD VERIFICATION SUCCESSFUL- WX RADAR OPS NORMAL REF AMM 34-43-00 OK FOR SERVICE SEAMC RAY CONSULTED.
REF T/C # 78472010 #1 ENGINE FAN BLADE LUBE. FOUND 6 EACH FAN BLADE SPACER DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FAN BLADE SPACER 6 EACH. REF T/C # 78472010.
FLIGHT DECK ZONE TEMP LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. PERFORMED BITE PER B737-900 FIM 21-62-TASK 801 FAULT CLEARED OPS CHECKS GOOD.
BLEED AIR VALVES LEFT CIRCUIT BREAKER POPPED DURING CRUISE FLIGHT. GROUNDED - YES. REMOVED AND REPLACED #1 ENG BLEED AIR REGULATOR REF B737-900 AMM TASKS 36-11-03-000/400-801. OPS CHECK GOOD. LEAK CHECK GOOD.
WITH BOTH ENGINES RUNNING, POWER AT IDLE, BOTH PACKS IN AUTO, LEFT DUCT PRESSURE READS 10 PSI. ENGINE ANTI ICE OFF AS WELL. GROUNDED - YES. PERFORMED DUCT PRESSURE LOW FAULT ISOLATION REF B737-900 FIM 36-10 TASK 804. REMOVED AND REPLACED BLEED AIR REGULATOR REF B737-900 AMM 36-11-03/401. PERFORMED ENGINE RUN REF POWER ASSURANCE CHECK REF AMM 71-00-00-700. OPS CHECK WAS NORMAL.
KNOB HANDLE ON NR 2 THROTTLE IS LOOSE AND WOBBLY. GROUNDED - YES. TIGHTENED KNOB.
L/H RAM DOOR ACTUATOR FAULT DURING TEMP/ZONE CONROLLER BITE TEST. WILL NOT RESET. GROUNDED - YES. REMOVED AND REPLACED LH RAM AIR INLET ACTUATOR REF. B737-900 AMM 21-51-21. OPS AND BITES TEST GOOD.
WHEN DOING GROUND RUN IDLE CK OUT #2 ENG NOTED FUEL LEAKAGE FROM RT VSV DRAIN LINE AT START UP AND SHUT DOWN. GROUNDED - YES. ON DEFERRAL.
STARTING ENG #2 ENGINE DID NOT LIGHT OFF GOOD N1 N2 ROTATION. GROUNDED - YES. REF B737-900 FIM TASK 74-21-02-400-801, INSPECTED L IGNITOR PLUG- NOTED SEVERE WEAR, ALSO NOTED L IGNITOR LEAD CHAFFED AT 6 OCLOCK POS. - NOTED NORMAL WEAR ON R IG IGNITOR PLUG- REPLACED LEFT IG LEAD REF B737-900 AMM 74-21-01-801-F00. REPLACED LEFT & RT IGNITORS REF AMM 74-21-02-400-801-FOO- PERFORMED NORMAL ENG START W/CK LIST- CHKD GOOD.
ZONE TEMP LIGHT (CAB CONT) ON RECALL. RESETS WHEN PUSH MC LIGHT. GROUNDED - YES. REF B737-900 FIM 21-62 TASK 801, PZTC #1 BITE TEST FOUND RAM AIR ACT FAULT, RESET PZTC #1 FAULT NOT ACTIVE, PZTC #2 BITE TEST FAULTED RAM AIR ACT AND UNABLE TO RESET THE FAULT, PER FIM 21-60 TASK 836 RAM AIR ACT REQUIRES TO BE REMOVED. REMOVED AND REPLACED RH RAM AIR ACTUATOR, ADJUSTMENT AND ACTUATOR TEST GOOD REF B737-900 AMM 21-51-21. BITE TEST BOTH PZTC #1 & #2 NO FAULTS NOTED FIM 21-62 TASK 801, OPS TEST BOTH PACKS TO FULL COOL & FULL WARM AMM 21-00-00, NO ACTIVE FAULTS PRESENT ON MASTER RECALL TEST, GROUND VERIFICATION CHECK NORMAL.
HGS A3 AUTOLAND - FAIL. ON APPROACH AUTOPILOT #1 WOULD NOT ACCEPT DUAL A/P CMD. RESETTING BOTH A/P REGAINED AUTOLAND UNTIL "APRCH WARN" LIGHT CAME ON IN HUD. DISENGAGED BOTH A/P AND LANDED MANUALLY WITH RUNWAY IN SIGHT. GROUNDED - YES. FAULT SHOWS IN FCC B HISTORY LEG 16. PERFORMED DFCS LRU TESTS FOR FAULT 22-11208. NO FAULTS FOUND IN DFCS BITE. CHECKED CURRENT STATUS FOR FAULT 22-11126 "ELEV POS FAIL-ELEV POS SEN 2 FCC B". NO CURRENT FAULTS FOUND. PERFORMED DFCS LAND VERIFY TEST GROUP 49 REF B737-900 AMM 22-11-00. NO FAULTS FOUND OPS CKS GOOD. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.
(#1 ENG) WHEN ENTERING ENG BITE GROUND TEST MENU EEC CHANNEL "B" FAILS TO ENERGIZE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG EEC PER B737-900 AMM 73-21-60. OPS CHECK GOOD PER AMM 73-21-00. GROUND VERIFICATION TEST SUCCESSFUL.
CTR FUEL TANK REFUEL INDICATOR INOP. GROUNDED - YES. REMOVED & REPLACED CENTER TANK REFUEL INDICATOR, PERFORMED GOOD INSTALLATION TEST REF B737-900 AMM 28-41-61.
CONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL. GROUNDED - YES. REPLACED PACK TEMP CONTROLLER AND RAN BITE TEST IAW B737-900 AMM 21-51-00-700-803. SYSTEM TEST IS GOOD.
PER T/C 78273000 FOUND SHORT TIME FAULT ON #1 ENGINE MSG# 73-11281 EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE ON FLT LEG #3. GROUNDED - YES. REMOVED AND REPLACED ENG #1 EEC ALTERNATOR REF AMM 73-21-08-400-801-F00. EEC BITE CHECK, NO FAULTS. COMPLETED INSTALLATION AND OPS CKS OF #1 ENG EEC ALTERNATOR PER AMM 73-21-08-400-801. LEAKS AND OPS CKS OK -EEC CKS OK -NO FAULTS AFTER ENG RUN.
AFTER START-RT PACK LIGHT ILLUMINATED UPON RECALL. EXTINGUISHED UPON RESET. GROUNDED - YES. PERFORMED RH PACK/ZONE TEMP CONTROLLER BITE TEST IAW B737-900 AMM 21-61-00 NO FAULTS FOUND. UNABLE TO VERIFY. GROUND VERIFICATIONS GOOD.
PER T/C # 78273000 FOUND MSG # 73-11281, EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE FLIGHT LEG#3, THIS IS SHORT TIME FAULT. GROUNDED - YES. RAN EEC BITE TEST REF B737-900 73-21-00 SYSTEM OP CHECKS GOOD THIS APPEARS TO BE A ONE TIME FAULT.
PER WORK ORDER T/C# 78273000 FOUND #1 ENG MSG# 73-21271 "THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE" ON FLIGHT LEG#3 IS A SHORT TIME FAULT. GROUNDED - YES. REMOVED AND REPLACED J8 HARNESS ON #1 ENGINE IAW B737-900 AMM 73-21-06. HARNESS CHECKS GOOD PER EEC TEST AMM 73-21-00-700-804-F00 AND TEST 12 ACTUATORS TEST AMM 71-00-00-700-807-F00. REPAIR CONFIRMATION GOOD PER B737-900 FIM 73-27 TASK 804. ETOPS GROUND VERIFICATION GOOD.
#1 ENGINE START DUCT LINK AFT CONNECTION TO FAN FRAME BRACKET HAS WORN BEARING. GROUNDED - YES. REPLACED #1 ENG. START DUCT LINK AFT IN REF TO PPBM 71-00-02.
DURING FUELING AN "ID FAIL" INDICATION ON THE CENTER TANK INDICATOR APPEARED (ON THE GAGE IN THE FUELING COMPARTMENT). GROUNDED - YES. PULLED AND COLLARED 4 C/BS. REPLACED CENTER TANK FUEL IND. PER AMM 28-41-61. RESET 4 C/B'S.
#1 ENG EEC BITE TEST SHOWS FAULT MAINT MSG 73-21271 "THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE" SHORT TIME FAULT, DEFERRED PER TC 78273000. GROUNDED - YES. REF FIM 73-27 TASK 804. ACCOMPLISHED #1 EEC BITE, NO CURRENT FAULTS. FAULT MESSAGE 73-21271 SHOWS IN LEG 6. ACCOMPLISHED #1 ENGINE IDLE RUN. ACCOMPLISHED #1 EEC BITE, NO CURRENT FAULTS. THIS CLEARS PLT. GROUND VERIFICATION, VERIFIED.
NO AIR PRESSURE & NO N2 ROTATION DOING START. GROUNDED - YES. FOUND STARTER INOP INTERNALLY -NO EXTERNAL CONTAMINATION FOUND. RMVD AND REPLACED #1 STARTER REF B737-900 AMM 80-11-01. IDLE PWR AND PNEU LEAK CHECKS GOOD.
#2 REFUEL QUANTITY INDICATOR IN WING NOT WORKING. GROUNDED - YES. RMVD & RPLCD #2 REFUEL INDICATOR IAW B737-900 AMM 28-41-61/400. CHECKED GOOD.
WHILE PERFORMING T/C 78273000 FOUND FAULT CODE 73-21271 #1 ENG. ALT VOLTAGE TO EEC OUT OF RANGE. GROUNDED - YES. ACCOMPLISHED #1 EEC BITE, NO FAULTS LOGGED IN RECENT 0-3 AND FAULT HISTORY LEGS 0-10. ACCOMPLISHED #1 EEC TEST REF B737-900 AMM 73-21-00, TEST PASSED.
CONT CABIN ZONE TEMP ILLUMINATES DURING RECALL. GOES OUT WITH MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED BITE TEST PER B737-900 AMM 21-61-00-700-806-002. BIT & PREV FLT HAD A FLT DECK TRIM VALVE FAULT. VERIFY PASSED AND FAULT RESET. RAN AGAIN AND ALL GREEN LIGHTS.
RIGHT PACK LIGHT CAME ON DURING RECALL. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 21-62 TASK 848 NO FAULTS FOUND.
LEFT IGNITION FAILED TO LIGHT OFF ENGINE NR 1 DURING START. GROUNDED - YES. C/W FIM 74-21 TASK 806. PERFORMED ENGINE EEC BITE CHECK PER AMM 73-00-00 WITH NO FAULTS FOUND. PERFORMED IGNITION SYSTEM AUDIBLE TEST WITH NO FAULTS FOUND PER AMM 74-00-00. STARTED NR 1 ENGINE ON L/H IGNITER MULTIPLE TIMES PER AMM 71-00-00 WITH NO DEFECTS NOTED. PERFORMED REPAIR CONFIRMATION OF FIM TASK 74-21-806 WITH NO FAULTS FOUND. REPAIR CONFIRMATION SUCCESSFUL. IGNITION SELECTOR PLACED FROM BOTH TO LEFT.
#1 ENGINE TREND DATA SHOWS A 5 PSI SHIFT IN TAKE OFF AND CRUISE OIL PRESSURE. NOTE: CURRENT OIL PRESSURE REMAINS IN THE NORMAL N2 VERSUS OIL PRESSURE OPERATIONAL BAND. GROUNDED - YES. ACCOMPLISHED TSR STEP 1 & 2. OIL POP OUT INDICATOR NOT EXTENDED. NO DAMAGE TO OIL LINES FOUND, OIL TANK SCREEN HAD NO CONTAMINATION. REPLACED LUBE UNIT ON #1 ENGINE. OPTS CK GOOD, NO LEAKS NOTED. REF. B737-900 AMM 79-21-01. TSR CONFIRMS OIL PRESSURE INDICATION TO BE WITHIN PUBLISHED MANUAL LIMITS PER AMM 71-00-00-800-806-F00. TECH SERVICES WILL CONTINUE TO MONITOR THE OIL PRESSURE ON SUBSEQUENT FLIGHTS.
AT CRUISE UPPER DISPLAY ENGINE NR 1 AMBER BOXES FLICKERED MOMENTARILY WITH ONLY LOW OIL PRESS TEST SHOWING. ENGINE NR 1 AMBER BOXES BLINKED FOR 10 SECONDS FOLLOWED BY LOW OIL PRESSURE TEXT REMAINING ON. GROUNDED - YES. REMOVED AND REPLACED NR 1 ENGINE EEC PER AMM 73-21-60-000-801-F00 / MM 73-21-60-400-801-F00. REFERENCE IPC 73-21-60-01A ITEM 169 - VERIFIED EEC SOFTWARE 2044M25P19 INSTALLED. PERFORMED FADEC TESTS PER MM 73-21-00-700-802-F00: EEC TEST PER AMM 73-21-00-700-804-F00; IDENT/CONFIG TEST PER AMM 73-21-00-700-808-F00; POWERPLANT TEST 12 - ACTUATORS TEST PER AMM 71-00-00-700-807-F00; AND EEC DISCRETES TEST PER AMM 73-21-00-700-809-F00 - ALL TESTS PASS.
AFTER STARTING ENGINES THE ENGINE NR 1 ENGINE CONTROL LIGHT ILLUM. GROUNDED - YES. PERFORMED FIM TASK 73-06 FOUND FAULT CODE 73-10111. PERFORMED ENGINE RUN NR 1 ENG & EEC BITE, NO FAULTS LOGGED.
WHILE ACCOMPLISHING TASK CARD FOUND FAN BLADE SPACERS 6, 8, 13, 19, AND 24 DISBONDED ON NR 1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED SPACERS 6, 8, 13, 19, AND 24 ON NR 1 ENGINE REF TASK CARD. VIBE SURVEY WILL BE ACCOMPLISHED.
NR 1 ENGINE FWD SPINNER HAS WORN PAINT. GROUNDED - YES. ON DEFERRAL.
L1 DOOR WILL NOT OPEN. GROUNDED - YES. FOUND SCREW MISSING FROM PIN FOR THE RADIUS LINKS TO GUIDE ARM, REPLACED THE PIN WASHER AND SCREW WITH NEW HARDWARE, INSTALLED NEW PIN WASHER SCREW PER AMM 52-11-21-400-802 STEP 4 A-I.
R1 SLIDE LIGHT INOP. GROUNDED - YES. RELAMPED PER AMM 33-51-04 OPS CHECK GOOD.
RECURRING CONTROL CAB ZONE LIGHT ON RECALL AFTER START. GROUNDED - YES. PACK/ZONE TEMP BITE SHOWS ON #2 CNTRLR FLT DECK TRIM VALVE FAULT. REMOVED & REPLACED FLIGHT DECK TRIM AIR VALVE REF B737-900 AMM 21-61-21. OPS CHECK & LEAK CHECK GOOD.
WINDOW OVERHEAT LIGHT ILLUMINATED GROUNDED - YES. FOUND WINDOW HEAT POWER LEFT FRONT C/B OUT. DETERMINED C/B COULD BE RESET PER AMM 20-60-01. WINDOW HEAT CONTROL UNITS BITE TEST NML PER FIM 30-41 TASK 801. ETOPS SIGNIFICANT SYSTEM, GROUND VERIFICATION SUCCESSFUL.
NR 2 ENGINE ABORT DUE TO NO EGT OR RISE IN N1 OR N2 (REPORT OF SMOKE & FLAMES FROM GROUND CREW). GROUNDED - YES. REMOVED AND REPLACED NR 2 ENGINE LEFT IGNITOR PLUG REF AMM 74-21-02. OPS CHK GOOD.
FUELER REPORTS CENTER REFUEL GAUGE READS ID FAIL. GROUNDED - YES. ON DEFERRAL. REMOVED AND REPLACED CENTER REFUEL QUANTITY INDICATOR. OPS TEST GOOD REF AMM 28-41-61.
REFUEL PNL CENTER TANK GAUGE READS ID FAIL. GROUNDED - YES. RESET SYSTEM, OPS CHECK GOOD IAW AMM 28-41-00-710-801.
AFT CARGO BAY, RT ZEE CHANNEL HAD A PUNCTURE AT BS 727H+12. ACFT GROUNDED. PUNCTURE LARGER THAN .250. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53 4A (Y). REMOVED THE DAMAGED CHANNEL SECTION BS 727H+10 - STA 727J +7 IAW SRM 51-10-02. FABRICATED THE CHANNEL SIDEPLATE AND SPLICES IAW SRM 53-00-53-2R-5, REPAIR 5, FIG 202. INSTALLED THE CHANNEL IAW SRM 53-00-53-2R-5, REPAIR 5.
R1 DOOR FRAME, LOWER AFT CORNER, AT BS 328, HAD EVIDENCE OF CORROSION. ACFT GROUNDED. REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM 53-10-15-1A-2. REMOVED AND REPLACED THE DOOR FRAME IAW DWG 141A8310 AND SRM 51-40-02.
RIGHT PACK LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REF SSM 21-51-22. ACCOMPLISHED PACK TEMPERATURE CONTROL - BITE PROCEDURE, FIM 21-62 TASK 801. THIS PACK TCV ILLUMINATED. REF FIM 21-62 TASK 831. REQUIRES TCV (V141). REMOVED AND REPLACED RT TCV REF B737-900 AMM 21-51-10 OPS CHECK AND LEAK CHECK GOOD.
LEFT FMC FAILED. GROUNDED - YES. ACCOMP FIM 34-61 TASK 836, SYS RESTORED AND OPS CKS NML PER AMM 34-61-00, GROUND VERIFICATION SUCCESSFUL.
WEATHER RADAR "AUTO' SELECTOR DOES NOT KEEP WX RADAR IN AUTO MODE. WITH AUTO SELECTED WXR (-1) M OR MANUAL MODE IS SHOWN ON NAV DISPLAY INSTEAD OF WX AND THE TILT AND "A" FOR AUTO. GROUNDED - YES. R&R WX RADAR CONT PANEL PER 34-43-91, SYS OPS CKS NML PER SAME.
MAIN CABIN BS 312-328, LBL 49 FLOOR SUPPORT WAS CRACKED. ACFT GROUNDED. REMOVED AND REPLACED THE FLOOR SUPPORT IAW DWG 141A5400, REV-.
WHILE ACCOMPLISHING T/C 78273000, A FAULT CODE APPEARED FOR THE NR 1 ENGINE FAULT CODE 73-21271, THE ALTERNATOR VOLTAGE INPUT TO THE EEC WAS OUT OF RANGE, SHORT TIME. ACFT GROUNDED. RECENT FAULT, LEG 3 FOR FAULT MESSAGE 73-21271 WAS THE LATEST OCCURRENCE. B CHANNEL OF THE EEC ALTERNATOR IAW FIM 73-27, TASK 804. REMOVED AND REPLACED THE NR 1 STATOR-ALTERNATOR IAW AMM 73-21-08. LEAK CHECKED GOOD. DURING EEC ALTERNATOR INSTALL TEST, FOUND NR 1 ENGINE FAULT CODE #73-21271 ON LEG 0. REPLACED THE NR 1 ENGINE EEC, INSTALLATION TEST PASSED IAW AMM 73-21-60-400-801-F00. REPLACED THE NR 1 ENGINE J-8 HARNESS, INSTALLATION TEST PASSED IAW AMM 73-21-06-400-801-F00. REPAIR CONFIRMATION FOR FIM 73-27/804 PASSEED. NO MAINTENANCE MESSAGES. GROUND VERIFICATION SUCCESSFUL.
NR 1 ENGINE FLAG FAULT, SHORT TIME MESSAGE 73-11281, EEC CHANNEL WAS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE ACFT GROUNDED . REPLACED THE NR 1 ENGINE EEC IAW AMM 73-21-60. FADEC SYS TESTED GOOD, S/W VERSION GOOD, EEC TESTED GOOD, GROUND VERIFICATION GOOD, NO FAULTS, IAW AMM 73-21-00. ALL TEST C/W PER POWER PLANT REFERENCE TABLE FOR EEC CHANGE REF AMM 71-00-00. AIRCRAFT OK FOR SERVICE.
ON CLIMB OUT, F/A TURNED ON BOTH AFT GALLEY COFFEE MAKERS. THEY IMMEDIATELY STARTED SMELLING A BURNING ODOR THAT SMELLED LIKE ELECTRICAL SMOKE. THEY TURNED OFF THE COFFEE MAKERS AND THE ODOR STARTED DISSIPATING. THEY LEFT THE COFFEE MAKERS OFF FOR THE REMAINDER OF THE FLIGHT WITH NO OTHER ISSUES. GROUNDED - YES. REMOVED BOTH AFT GALLEY COFFEE MAKERS. ACCOMP GVI OF WIRES ON A/C SIDE NO DEFECTS. INSTALLED 2 NEW SERVICEABLE ONES. ACCOMP OPS TEST, TEST PASS ON BOTH. REF FIM 25-31 TASK 805.
L1 DOOR AT MID POINT OF ITS TRAVEL IS STIFF AND CREAKS. ACFT GROUNDED. LUBRICATED THE L1 DOOR GUIDE PLATE TRACKS IAW AMM 12-25-11. NO MORE CREAKING. DOOR MOVES FREELY THRU ALL PARTS OF TRAVEL. OK FOR SERVICE.
PILOT REPORTS NO LIGHT OFF ON #2 ENGINE LEFT SIDE IGNITION. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE LEFT SIDE IGNITER PLUG PER B737-900 AMM 74-21-02 OPS CHECK GOOD.
CAPT FMC DATA LINK PROBLEM. GROUNDED - YES. PERFORMED FIM 34-61 TASK 839 & FAULT CLEARED. GROUND VERIFICATION CK GOOD.
PASSENGER AT 27B HAD PHONE CHARGER PLUGGED INTO RECEPTACLE 27B, THE PHONE CHARGER BECAME HOT. PASSENGER UNPLUGGED THE CHARGER AND A SMALL SPARK OCCURRED. CAPTAIN TURNED OFF SEAT POWER AND RETURNED TO GATE. GROUNDED - YES. REMOVED AND REPLACED SEAT 27B ACOU PER AMM 44-60-00 OPS CHECK NORMAL.
NUMBER TWO FIRE WARNING, TEE HANDLE WILL NOT ILLUMINATE WITH "OVHT DET SWITCH IN THE NORMAL POSITION. UPON PLACING THE OVHT DET SWITCH TO THE B POSITION A FAULT LIGHT ILLUMINATES. THE TEST IS SATISFACTORY WITH THE OVERHEAT DET SWITCH IN THE A POSITION. ACFT GROUNDED. VERIFIED DISCREPANCY. TROUBLESHOT AND FOUND CORE FIRE DETECTION HARNESS MW0326 WITH A BROKEN LUG AT THE 11 O'CLOCK CONNECTION. REPLACED NR 2 ENG MW0326 HARNESS IAW AMM 26-11-02. PLACED THE NR 2 OVERHEATT DETECTOR SWITCHED BACK TO NORMAL POSITION. ENGINE FIRE DETECTION OPS TESTED NORMAL IAW AMM 26-11-00.
BOTH FMC P/RST LIGHTS KEEPS ILLUMINATING ON DESCENT. WHEN YOU RESET IT, IT KEEPS COMMING BACK ON. NO SCRATCH PAD MESSAGES ASSOCIATED WITH IT. THE FMC'S STILL WORKED FINE. GROUNDED - YES. VERIFIED DISCREPANCY. ACCOMPLISHED FMC #1 AND FMC #2 BITE TEST B737-900 FIM 34-61 TASK 801. DID NOT FIND FAULTS RELATED FAULT. INSPECTED MCDU INFLT FAULTS. FOUND SEVERAL LEFT FMC FAULTS. DUE TO HISTORY - REPLACED LEFT FMC COMP. OPENED/TAGGED 2 CBS. RMVD AND INSTALLED NEW LEFT FMC. RMVD TAGS/CLOSED 2CBS. REF B737-900 AMM 34-61-02/401. ACCOMPLISHED LEFT FMC COMP INSTALL TEST REF STEP E OF B737-900 AMM 34-61-02. SYS CKS NML. ALL SW LOADED AND VERIFIED REF B737-900 AMM 34-61-00/201.
FMC P/RST LIGHT ILLUMINATED AT THE GATE AND IT WILL RESET, BUT KEEPS COMING BACK. ACFT GROUNDED. RESET THE CIRCUIT BREAKER, FMCS CMPTR2 AND FMCS CMPTR1 IAW FIM 34-61, TASK 836. LIGHT STAYS EXTINGUISHED. OPS CHECKED GOOD.
NR 1 ENGINE FOUND UPPER CLEVIS ROD END LINK LOOSE JUST FWD OF PRSOV. GROUNDED - YES. DURING REMOVAL OF CLEVIS ROD FOUND BEARING RACE @ 5TH / 9TH STAGE DUCT DAMAGED THIS REQUIRES REPLACEMENT OF 5TH 9TH STAGE DUCT. REMOVED & REPLACED CLEVIS ROD TURNBUCKLE CONDUCTED DURING 5TH 9TH DUCT REMOVAL. REPLACED 5TH 9TH STAGE DUCT REF AMM 36-11-01. OPS & LEAK CK COMPLETED NO DEFECTS NOTED REF AMM 36-11-01.
R-1 DOOR GUIDE ARM OUT OF ADJUSTMENT DOOR HARD CLOSE. GROUNDED - YES. FOUND THE R-1 DOOR GUIDE ARM CHECK NUT LOOSE. ADJUSTED THE R-1 DOOR GUIDE ARM AND RE-SECURED THE CHECK NUT REF B737-900 AMM 52-41-00-820-801 STEP 2I.
LEFT SIDE SIDE WINDOW OVERHEAT AMBER LIGHT IN FLIGHT. LIGHT CAME BACK ON AFTER COOL OFF PERIOD. GROUNDED - YES. LEFT SIDE WINDOW HEAT FILM RESISTANCE CHECKED AND TAP VERIFIED. REF B737-900 WDM 30-41-12. INSTALLED NEW L2 SLIDING WINDOW. ADJUSTED, HEAT AND LEAK CHECKED WINDOW REF B737-900 AMM 56-12-11-400-801, AMM 56-12-11-820-801. CLEARS MEL 30-11E.
LEFT SIDE WINDOW OVERHEAT LIGHT OCCURED PASSING 14000' GROUNDED - YES. ACCOMPLISHED QRH PROCEDURE, OVERHEAT LIGHT EXTINGUISHED AND REMAINS EXTINGUISHED. OPS NORMAL.
LEFT SIDE WINDOW OVERHEAT LIGHT CAME ON ON CLIMBOUT. QRH RAN, LIGHT WENT OUT. GROUNDED - YES. PERFORMED B737-900 FIM 30-41 TASK 811, TO RECONNECT/TRANSFER PRIMARY WIRE TO SPARE. BIT VERIFY OK. BIT TEST OK (GREEN LIGHT) CAME ON. NO FAULT NOTED. OPS NORMAL.
LEFT SIDE WINDOW OVERHEAT. GROUNDED - YES. ACCOMPLISHED QRH PROCEDURE, WINDOW OVERHEAT LIGHT EXTINGUISHED.
LEFT SIDE WINDOW OVERHEAT. QRH PROCEDURE COMPLETED. OPS NORMAL. GROUNDED - YES. ACCOMPLISHED OP TEST FOR CAPT'S SIDE WINDOW PER B737-900 AMM TASK 30-41-00-710-801. OPS GOOD. BITE TEST GOOD REF AMM TASK 30-41-11-710-801. FAULT HISTORY SHOWED A SENSOR FAULT. RESET WITH NO FAULTS.
NR 2 FUEL QTY INDICATOR ON THE REFUEL PANEL IS INOPERATIVE, INTERMITTENT. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 FUEL QUANTITY INDICATOR IAW AMM 28-41-61.
SATCOM LOCKUP GROUNDED - YES. ACCOMPLISHED RESET PROCEDURE PER QRH. SATCOM RESTORED.
WHILE ACCOMPLISHING A NR 1 ENGINE INLET INSPECTION, T/C #78472000. FOUND THE NR 10 FAN DUCT PANEL LOOSE. ACFT GROUNDED. REMOVED THE FAN DUCT PANEL. REMOVED & REPLACED LOOSE SPACER. REINSTALLED THE FAN DUCT PANEL IAW AMM 72-23-02.
AUTOLAND WITH HGS MONITOR NOT SUCCESSFUL. AUTOPILOT DID NOT INITIATE NOSE UP TRIM AT OR BELOW 400 AGL AND ALTHOUGH FLARE ARM WAS INDICATED. DID NOT FLARE AT 50 FT. HGS INDICATED APPROACH WARN AND DISCONNECTED AUTOPILOT AND AUTOTHROTTLE AND LANDED MANUALLY. ACFT GROUNDED. ACCOMPLISHED DFCS BITE IAW AMM 22-11-00-810-801. NO CURRENT FAULTS OR IN HISTORY..
FMC P/RST LIGHT FLASHES ON AND OFF. NO SCRATCHPAD MESSAGE. ACFT GROUNDED. LEFT FMC OPS TESTED IAW AMM 34-61-00 AND NO FAULT FOUND. GROUND VERIFICATION TEST OPS CHECKED GOOD.
ELEC LIGHT ILLUMINATED AFTER ENGINE START. ACFT GROUNDED. PERFORMED ELEC LIGHT BITE TEST PROCEDURE ON P5-13 PANEL IAW FIM 24-31, TASK 801, FOUND THE SPCU INOPERATIVE MESSAGE LOGGED. CLEARED FAULT MESSAGE. ELEC LIGHT WENT OFF. NO HISTORY FOR THE LAST 30 DAYS.
FUEL PANEL INOPERATIVE LIGHT WILL NOT ILLUMINATE. ACFT GROUNDED. FOUND SEVERAL CIRCUIT BREAKERS TRIPPED FOR FUEL SPAR VALVE AND NR 2 ENGINE. PUT CIRCUIT BREAKERS BACK IN AND RESET. FUEL PANEL LIGHT CAME ON, OPS CHECKED GOOD, IAW AMM 20-60-01.
WHILE COMPLETING T/C N8420001, FOUND DAMAGE TO SHIELDING OF MW0326. ACFT GROUNDED. REMOVED AND REPLACED MW0326 WIRE HARNESS IAW AMM 26-11-02/401. OPS CHECKED GOOD.
WHILE ACCOMPLISHING T/C N8420001, FOUND DAMAGE TO SHIELDING OF MW0325 WIRE HARNESS. ACFT GROUNDED. REMOVED AND REPLACED THE WIRE HARNESS IAW MM 26-11-02-400-802, OPS NORMAL IAW AMM 26-11-00-710-801.
WHILE PERFORMING TASK CARD N8420000 FOUND #1 ENGINE CORE FIRE LOOP B MW0326 BRAIDED SHIELDING WORN. GROUNDED - YES. ENGINE NR 1 B LOOP MW326 REMOVED AND REPLACED IAW AMM 26-11-02. OPERATIONAL CHECK GOOD.
FUELING CONTROL CIRCUIT BREAKER WILL NOT RESET AND REMAIN CLOSED. ACFT GROUNDED. INSPECTED AND FOUND THE NR 2 TANK REFUEL INDICATOR INOPERATIVE. REMOVED AND REPLACED THE TANK REFUEL INDICATOR, OPS CHECKED GOOD, NO DEFECTS NOTED IAW AMM 28-41-61.
LT PACK LIGHT ON IN CLIMB 12,000 FT TRIP RESET DID NOT WORK (EXT. LIGHT). LT PACK 24C, RT PACK 21C, LT PACK SWITCH TO OFF, CONTINUED FLIGHT AT FL 340. OK PRESSURIZATION CABIN, 7000 FT. ACFT GROUNDED. REPLACED THE LT PACK TRIM AIR MODULATING VALVE IAW AMM 21-61-20 PB 401. PERFORMED BITE TEST IAW AMM 21-61-00-700-806-002.
LEFT PACK LIGHT ON AFTER RECALL. RAN QRH, LIGHT WENT OUT. ACFT GROUNDED. ACCOMPLISHED BITE OF BOTH PZTC IAW FIM 21-62 TASK 801. NR 1 CONTROLLER FAULTED TCV ON BIT AND PREVIOUS FLIGHT WITH A GREEN ON VERIFY. ACCOMPLISHED FIM 21-62 TASK 830. LEFT TCV ALL OPS CHECKED NORMAL. ALL GROUND FUNCTIONAL TESTS PASSED.
NR 2 START VALVE REMAINED OPEN AFTER ENGINE START. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 START VALVE. OPS & LEAK CHECKED GOOD IAW MM 80-11-03 .
DURING TAXI IN, ATTEMPTED APU START. RECEIVED AN AUTO SHUT DOWN AND A FAULT LIGHT. TURNED APU SWITCH TO OFF. AFTER ABOUT 5 MINUTES. FAULT LIGHT EXTINGUISHED. ACFT GROUNDED. ACCOMPLISHED FIM 49-40, TASK 803. APU HAS FAULT MESSAGE 49-41254. STARTER CONVERTER UNIT SHOWS START SYSTEM INOPERATIVE. PERFORMED FIM 49-40, TASK 821. CHECKED CONTINUITY & CLEANED CONNECTORS D1118/P4 TO P6 ON APU STARTER GENERATOR AND START CONVERTER UNIT D1114 TO P6 AT APU STARTER GENERATOR CONNECTOR P6 HAD MOISTURE IN IT. CONTINUITY CHECKS WERE GOOD. STARTED APU FIVE TIMES, FAULT 49-41254 DID NOT STAY ACTIVE ON ANY OF THE STARTS.
AUTOLAND UNSUCCESSFUL. AIRCRAFT ABRUPT FLARE AND DRIFTED LEFT OUTSIDE OF LIMITS OUTLINED IN FLIGHT HANDBOOK. PILOT INTERVENTION REQUIRED. GROUNDED - YES. DFCS NR 1 AND NR 2 DID NOT LOG ANY FAULTS. PERFORMED FIM 22-11 TASK 825. LAND VERIFY TEST NORMAL, REF AMM 22-11-00. HGS SYSTEM TEST NORMAL, REF SMM 34-36-00. A/C REMAINS CAT IIIA AUTOLAND/HGS, STATUS SCREW REFLECTS SAME.
DIAGNOSTICS REPORTED NR 2 ENGINE N2 SIGNAL FLUCTUATES DURING CLIMB AND TAKEOFF, FOUND ON OIP REPORT 07. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE N2 SPEED SENSOR, EEC BITE CHECK SHOWS NO FAULTS IAW AMM 77-11-02 AND 71-00-00.
RIGHT PACK LIGHT ILLUM ON CLIMB, WOULD NOT RESET. ACFT GROUNDED. REMOVED AND REPLACED S939 RIGHT ACM OVERHEAT THERMAL SWITCH, IAW AMM 21-51-40, S5 RIGHT COMPRESSOR DISCHARGE OVERHEAT SWITCH, IAW AMM 21-51-41, S935 PACK DISCHARGE OVERHEAT SWITCH, IAW AMM 21-51-42. REMOVED AND REPLACED M1455 AIR CONDITIONING ACCESSORY UNIT, IAW AMM 21-51-02. OPS CHECK NORMAL. RT PACK/ZONE TEMP CONTROLLER FAULTS TCV DURING BITE. ACCOMPLISHED TEST MULTIPLE TIMES, FAULT REMAINS. REMOVED AND REPLACED RIGHT PACK TCV, IAW AMM 21-51-10. OPS CHECK NORMAL. RAN RIGHT PACK, NO PACK LIGHT.
NR 1 ENGINE IDG SIGHT GAUGE SHOWS NO OIL. ACFT GROUNDED. REMOVED THE NR 1 IDG SCAVENGE AND CHARGE FILTER IAW AMM TASK 24-11-41-000-801. INSTALLED NR 1 IDG SCAVENGE AND CHARGE FILTER AMM TASK 24-11-400-801. PERFORMED IDG OIL DRAIN AND REFILL IAW AMM 12-13-21-600-801. LEAK CHECKED THE NR 1 ENGINE AND RESERVICED TO FULL IAW AMM TASK 12-13-21-200-801 AND AMM 12-13-21-200-801.
NR 1 ENGINE IDG AIR/OIL COOLER LEAKING OIL. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE IDG AIR/OIL COOLER IAW AMM 24-11-21-000-801 FOR REMOVAL AND AMM 24-11-21-400-801 FOR INSTALLATION ACCOMPLISHED TEST 3A IDLE POWER LEAK CHECK IAW AMM 71-00-00-700-801-F00. LEAK CHECKED GOOD.
NR 2 ENGINE IDG SIGHT GAGE SHOWS NO OIL. ACFT GROUNDED. REMOVED THE NR 2 ENGINE IDG SCAVANGE AND CHARGE FILTERS IAW AMM 24-11-41-000-801 . INSPECTED FILTERS NO DEBRIS FOUND. INSTALLED NEW NR 2 ENGINE IDG SCAVANGE AND CHARGE FILTERS IAW AMM 24-11-41-400-801. SERVICED NR 2 ENGINE IDG IAW AMM 12-13-21, LEAK TESTED GOOD.
NR 2 ENGINE IDG AIR/OIL COOLER LEAKING OIL. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE IDG AIR/OIL COOLER IAW AMM 24-11-21. OPS AND LEAK CHECKED GOOD.
DURING CLIMBOUT THRU 17500 FT, THE RIGHT A/C PACK TRIPPED OFF. RAN THE PACK QRH AND PACK LIGHT WENT OUT, TWO MINUTES LATER PACK TRIPPED AGAIN FL 250. PRESSURIZATION NORMAL AT FL 250 ON LEFT PACK. WAITED 30 MINUTES AND RAN QRH A THIRD TIME PACK TRIPPED AT 32C ON RIGHT PACK SUPPLY DUCT TEMP GAUGE. ACFT GROUNDED. ACCOMPLISHED PACK TEMP CONTROL BITE IAW FIM 21-62 TASK 801 ON BOTH CONTROLLERS NO FAULTS LOGGED, ACCOMPLISHED G.V. OF S935 RIGHT PACK DISCHARGE OVERHEAT SWITCH, S939 RIGHT ACM OVERHEAT AT 210 DEGREES THERMAL SWITCH, AND S5 RIGHT COMPRESSOR DISCHARGE OVHT SW, NO DEFECTS OF WIRING, PLUGS, AND SWITCHES NOTED IAW SSM 21-51-25. OPERATED RIGHT PACK FOR 45 MINUTES NO DEFECTS NOTED. ACCOMPLISHED SUCCESSFUL GROUND VERIFICATION, NO HISTORY 90 DAYS. MEL 21-1G CLEARED.
NR 1 ENG CONTROL LIGHT ILLUMINATED AFTER LANDING. THRUST LEVER AT IDLE. REVERSER STOWED. ACFT GROUNDED. RETURNED NR 1 AND 2 EECS TO ON. ACCOMPLISHED IDLE ENGINE RUN IAW AMM 71-00-00, TEST 13, OPS CHECKED GOOD. PERFORMED EEC TEST IAW AMM 73-21-00, TEST PASSED. NO FAULTS LOGGED BEFORE OR AFTER IDLE RUN.
CONTROL CAB ZONE TEMP ILLUMINATED AFTER RECALL, EXTINGUISHES WITH RECALL. ACFT GROUNDED. PERFORMED NR 2 PACK ZONE TEMP CONTROL BITE, REF FIM 21-62, TASK 801. FOUND CONTROL CABIN TRIM AIR VALVE FAULT IN CURRENT, HISTORY, AND VERIFY. R & R CONTROL CABIN TRIM AIR MODULATING VALVE, REF AMM 21-61-21. OPS CHECK GOOD, NO FAULTS FOUND AFTER REPLACEMENT.
F/O HAD TEMPORARY FMC FAILURE, FOLLOWED QRH. ACFT GROUNDED. PERFORMED FIM 34-61 TASK 836. FMC RIGHT OPS NORMAL IAW AMM 34-61-00. CIRCUIT BREAKER OPEN, RESET FOR FIM P6-1 D16 FMC CMPT 2. ETOPS GROUND VERIFICATION TEST SUCCESSFUL.
ATTEMPTED CSS ON APU AT FL 340. FIRST ATTEMPT: FAULT LIGHT ILLUMINATED. SHUTDOWN APU WAITED 5 MINUTES BEFORE ATTEMPTING A SECOND START. SECOND ATTEMPT, FL340: APU EGT REACHED 1,000+ C AND FAULT LIGHT ILLUMINATED. WE SHUT THE APU DOWN, CONSULTED WITH MAINTENANCE AND BASED ON INFO ABOVE DECIDED NOT TO ATTEMPT A THIRD START. ACFT GROUNDED. R & R LUBE MODULE, REF AMM 49-91-11-000-803 FOR REMOVAL AND AMM 49-91-11-400-803 FOR INSTALL. R & R FUEL CONTROL UNIT, REF AMM 49-31-11-000-801 FOR REMOVAL AND AMM 49-31-11-400-801 FOR INSTALL. LEAK AND OPS CK GOOD ON APU. APU BITE NO LONGER SHOWS FAULT MESSAGES.
LEFT AFT OVERWING EXTERIOR EMERGENCY LIGHT INOPERATIVE. ACFT GROUNDED. REPLACED THE LAMP IAW AMM 33-51-04, OPS CHECKED GOOD.
WHILE PERFORMING NR 49 LAND VERIFY BITE STEP 49.35, FAILS FCC A AND FCC B FOR AILERON POSITION SENSOR NR 1 AND AILERON POSITION SENSOR NR 2, FAULT MAINTENANCE MESSAGES 22-11145 & 22-11146. ACFT GROUNDED. PERFORMED BITES 49.35 AND 60.35 NUMEROUS TIMES. NO HELP, REF FIM 22-12, TASK 813 FOR T/S. RAN LAND VERIFY IAW AMM 22-01-05, OPS NORMAL.
UPON RECALL, LT PACK LIGHT ILLUMINATED, FOLLOWED QRH PRESSED MASTER CAUTION TO RESET, PACK LIGHT EXTINGUISHED. ACFT GROUNDED. LT PACK/ZONE TEMP CONTROLLER, M1442 FAULTED, THIS PACK TCV. REPLACED LT PACK TEMP CONTROL VALVE, V139 ZONE TEMP BITE PASSES. INSTALLATION TEST PASSES, REF AMM 21-51-00/401.
AFTER LANDING CAPTAIN FMC PROMPT ON FMS KEEPS DISAPPEARING ACCOMPANIED BY A VTK FLAG AND FMC P/RST. ACFT GROUNDED. VERIFIED LT FMC BLANKING. REBOOTED LT FMC IAW FIM TASK 34-61, TASK 801. NORMAL OPS RESTORED. OPS CHECK OF LT FMC OK.
WINDOW HEAT RT SIDE OVERHEAT LIGHT ILLUMINATED IN CRUISE. RAN QRH. LIGHT CAME ON AGAIN. ACFT GROUNDED. PERFORM WHCU BITE IAW FIM 30-41, TASK 801. WHCU SHOWS SENSOR FAULT, SWAPPED SENSOR TO SPARE IAW FIM 30-41, TASK 811. RE-ACCOMPLISHED BITE WITH NO FAULTS. WINDOW HEAT, OPS NORMAL.
APU HAS HISTORY OF CSS FAILED ON FIRST ATTEMPT. ACFT GROUNDED. ACCOMPLISHED APU BITE TEST. ACCOMPLISHED FIM TASK 49-40, TASK 801.
FMC DISAGREE ON GROUND PVR. QRH PROCEDURES FOLLOWED. NORMAL OPS RESTORED. ACFT GROUNDED. ACCOMPLISHED FIM 34-61, TASK 835. OPS CHECK GOOD.
NR 1 ENGINE FAN BLADE SPACERS AT LOC'S 2, 4, 7, 13-21, 11EA HAVE ELASTOMER SEPARATION, MAX IAW MM ALLOWED 8 EA. ACFT GROUNDED. ALL 24 FAN BLADE SPACERS ON NR 1 ENGINE WERE REPLACED.
NO SATCOM PROMPT. ACFT GROUNDED. QRH SATCOM LOCK-UP PROCEDURE FOLLOWED. SATCOM PROMPT REAPPEARED. SATCOM OPS NORMAL.
"DATA LINK FULL" CLEARING ATTEMPTED USING "ON THE GROUND" PORTION OF FMC DISAGREE QRH. ACFT GROUNDED. QRH PROCEDURE SUCCESSFUL. DATA LINK FULL MESSAGE CLEARED.
FMC DISAGREE MESSAGE ON TAXI OUT. ACFT GROUNDED. RAN QRH PAGE 11.2, MESSAGE DID NOT RETURN.
NO SATCOM PROMPT. ACFT GROUNDED. QRH PROCEDURE PERFORMED, SATCOM PROMPT RESTORED.
FMC DISAGREE ON TAXI. ACFT GROUNDED. PERFORMED QRH GROUND PROCEDURE FOR FMC DISAGREE. LIGHT WENT OUT.
FMC DISAGREE MESSAGE ON TAXI. ACFT GROUNDED. QRH PROCEDURE ACCOMPLISHED OPS NORMAL.
WITH APU ON, ENGINES OFF, AND APU BLEED SOURCE ON WITH PACK ON AUTO OR HIGH DUCT PRESSURE INCREASES TO 45 PSI THEN DROPS OFF, SURGE LIKE CONDITION. ACFT GROUNDED. REPLACED THE APU IAW T/C 78349010 AND MM 49-11-00. LK AND OPS CK GOOD.
F/O REPORTS ON PREFLIGHT VTK AND MAP FLAG SHOWS ON WDD DISPLAY. ACFT GROUNDED. BLOCK IN, HAD DIFFICULTY WITH GPU. CYCLED POWER TO NR 2 FMC COMPUTER AND POWER DOWN. RESTORED POWER ALIGNED IRS'S. NO FURTHER DISCREPANCIES. ASMP 05-00-01, FMC OPS TEST GOOD 34-61-02.
ON RECALL, LEFT PACK LIGHT ILLUMINATED - IT RESET WITH PUSHING THE MASTER CAUTION. ACFT GROUNDED. UNABLE TO DUPLICATE DEFECT. BITE OF PACK ZONE TEMP CONTROLLERS IAW MM 21-61-00-700-806-002 SHOWED NO FAULTS AND VERIFY TESTS PASSED. OPERATED LT PACK AT VARIOUS TEMPERATURE SETTINGS AND RETESTED IAW SAME. OPS NORMAL.
AFT CARGO BAY FLOORBEAM IS PUNCTURED AT BS 727J, RBL 8.1. ACFT GROUNDED. FOUND BEYOND THE ALLOWABLE LIMITS IAW SRM 53-00-53-1A. REMOVED THE DAMAGE IAW SRM 53-00-53-2R-4, STEP 4.B. FABRICATED REPAIR IAW SRM 53-00-53-2R-4. ALODINED THE REPAIR IAW SOPM 20-41-02. INSTALLED THE REPAIR IAW SRM 53-00-53-2R-4. STEP PART DWG 143A7500, SH 225 AND 227.
FMC DISAGREE ON GROUND. ACFT GROUNDED. RAN QRH & LIGHT WENT OUT.
NO SATCOM PROMPT ON MCDU MENU. ACFT GROUNDED. ACCOMPLISHED FIM TASK 23-15-00-1, VERIFIED SATCOM TRANSCEIVER UNIT HAS RED LIGHT. R & R IRIDIUM TRANSCEIVER IAW AMM 23-15-00/401. UNABLE TO PERFORM A SUCCESSFUL 2-WAYS SATCOM TEST DUE TO BUILDING OBSTRUCTIONS. ON DEFERRAL.
F/O SIDE, FMC R5 BUTTON DETERIORATING. ACFT GROUNDED.
DURING PREFLIGHT FOUND CIRCUIT BREAKER P18-D 13 SATCOM TRIPPED. ACFT GROUNDED. RESET SATCOM CIRCUIT BREAKER IAW AMM 20-60-01.
APU FILTER INDICATOR EXTENDED, IAW T/C N8349002 ACCOMPLISH AMM 49-91-13-600-801, OIL FILTER INDICATOR SERVICING. ACFT GROUNDED. R & R FILTER ELEMENT AND FILTER INDICATOR, LEAK CHECK GOOD. ACCOMPLISHED AMM 49-91-13-600-801, MAGNETIC DRAIN PLUG NO METAL.
DURING CLIMB, VNAV STUCK ON "ACT 216 CLB" WITH "TGT SPD" OF "313/.790" AT CRUISE ALT OPERATION NORMAL. ACFT GROUNDED. PERFORMED BITE CHECK OF FMC IAW AMM 34-61, TASK 801, NO FAULTS FOUND. PERFORMED BITE CHECK OF DFCS NO FAULTS FOUND REF AMM 22-11, TASK 801. NO HISTORY PAST 30 DAYS. OK FOR CONTINUED SERVICE.
TURNED ON ADF & RECEIVED AN ELECTRICAL BURNING ODOR AND THE POWER WENT OUT RIGHT AWAY ON RADIO. SELECTED OFF ON ADF AND THE ODOR WENT AWAY. ACFT GROUNDED. ACCOMPLISHED FIM 21-00, TASK 806, ODOR IN FLT DECK. DETERMINED ADF CONTROL PANEL WAS AT FAULT, HAD A BURNED ODOR. INSPECTED CONNECTORS D03661 AND D03659 NO BURNED OR DISCREPANCIES NOTED. INSPECTED BEHIND ADF RECIEVER WITH NO DEFECTS NOTED WITH NEW ADF PANEL INSTALLED AND BREAKER IN, ADF STLL INOP. ADF RECEIVER WILL NOT TEST WITH NEW ADF RECEIVER INSTALLED. REF AMM 34-57-02 AND AMM 34-57-03. ORIGINAL ADF RECEIVER INSTALLED. VERIFIED GOOD VOLTAGE ON BOTH SIDES OF C/B WDM 34-57-11 VERIFIED WIRING GOOD. REPLACED ADF CONTROL PANEL AND ADF RECEIVER AGAIN IAW PREVIOUS PROCEDURES. OP'S CKS GOOD IAW AMM REF 34-57-00-730-802.
HF RADIO NR 1 FAILED ENROUTE. UNABLE TO TRANSMIT OR RECEIVE, HF SENSITIVITY SET TO 100. ACFT GROUNDED. CONFIRMED NR 1 HF HAS NO TX, NO SIDETONE AND NO TONE. REPLACED NR 1 COUPLER IAW TASK 23-11-61-000-801 AND 23-11-61-400-801. OPS CHECKED GOOD. AFTER ABOUT 5 MIN, WHILE TESTING VARIOUS FREQ'S, NR 1 HF C/B POPPED. COULD NOT RESET. REPLACED NR 1 HF TRANSEIVER. BITE TEST GOOD PER TASK 23-11 TASK 801. RAN RADIO FOR HALF HOUR. C/B REMAINED CLOSED. RADIO CHECKS GOOD. NO FAULTS NOTED.
NR 1 HF WILL NOT TRANSMIT. TUNING TONE OCCURS (PTT) AFTER FREQ SELECTION BUT DOES NOT TRANSMIT AFTER TUNING. ACFT GROUNDED.
AFTER ENGINE START, ELECTRIC LIGHT ON OVERHEAD PANEL ILLUMINATED. RAN QRH AND RETURNED TO GATE. ACFT GROUNDED. ACCOMPLISHED ELECTRIC LIGHT BITE IAW FIM 24-31 TASK 801 FOUND BATTERY CHARGER INOPERATIVE MESSAGE, ACCOMPLISHED FIM 24-31- TASK 824. BATTERY CHARGER OP'S NORMAL. FAIL MESSAGE CLEARED, ACFT OK FOR SERVICES.
LEFT PACK LIGHT UPON RECALL DURING LANDING CHECKLIST. ACFT GROUNDED. ACCOMPLISHED BITE OF THE NR 1 TEMP CONTROLLERS IAW FIM 21-61, TASK 801, OPS TEST NORMAL. RESET SUCCESSFUL. NO HISTORY.
FMC DISAGREE DURING TAXI. ACFT GROUNDED. PULLED CIRCUIT BREAKERS, RESET IAW QRH, OPS NORMAL.
ELECTRIC LIGHT ILLUMINATED ON ELECTRIC PANEL. ACFT GROUNDED. PERFORMED FIM TASK 24-31-801. FOUND FAULT BATTERY CHARGER INOPERATIVE 1 FAULT CLEARED ON RESET GROUND VERIFICATION CK GOOD NO HISTORY 30 DAYS.
AUTOTHROTTLE DISCONNECTED ON TAKE OFF ROLL AT 5 KTS IMMEDIATELY AFTER PRESSING TOGA BUTTON. ACFT GROUNDED. LAST FLIGHT LEG ASM1 FAULT CODE 22-31687. FAILS INTERACTIVE THROTTLE TEST, NR 1 ASM 22-31794. REPLACED AUTOTHROTTLE SERVO MOTOR REF. AMM 22-31-91. OPS CHK GOOD.
FMC DISAGREE MESSAGE APPEARED AFTER ENGINE START. ACFT GROUNDED. USED CHECKLIST PROCEDURE AND CORRECTED DISCREPANCY.
WHILE ACCOMPLISHING TASK CARD NG-23FCD-10782-1, NR 1 HF DOES NOT TRAMSMITT, ANY LOCATION. NR 2 HF OPS NORMAL. ACFT GROUNDED.
ON GROUND, HAD AN FMC DISAGREE LIGHT. ACFT GROUNDED. RAN THE CHECK LIST AND IT RESET ITSELF TO NORMAL.
FMC DISAGREE LIGHT CAME ON AFTER ENGINE START. ACFT GROUNDED. QRH ACCOMPLISHED & LIGHT EXTINQUISHED.
FMC DISAGREE ON TAXI OUT. ACFT GROUNDED. RESET IAW QRH, OPS NORMAL.
DURING CRUISE FLIGHT, AT FL 340, CONTROL CABIN AUTO TEMP CONTROL DELIVERS NO HIGHER THAN 19 DEGEES IN THE MAN/OFF POSITION THE SYS DELIVERS 23 DEGREES CONSEQUENTLY, THE PF AND THE PNF ARE NOT HAPPY BECAUSE THE ARE COLD AND DISTRACTED. PASSENGER CABIN CONTROLS/ INDICATIONS NORMALLY OPERATING. ACFT GROUNDED. ACCOMPLISHED FIM TASK 21-61/861. PACK/ZONE TEMPERATURE BITE CHECK OK ON BOTH CONTROLLERS. REPLACED TRIM AIR PRESSURE REGULATING AND SHUTOFF VALVE (V 146). INSTALLATION TEST PASSES REF AMM 21-62-01/401 AND FIM 21-61/861 PARA K.(3). INSPECTED SENSE LINE AND HOSE ASSY OF PRSOV IN RT AIR CONDITIONING BAY, NO DISCREPANCIES NOTED.
FLT DECK TOO COLD, CANNOT MAKE WARMER IN AUTO MODE. OK IN MANUAL MODE. ACFT GROUNDED. PERFORMED BITE TEST OF PACK/ZONE TEMP CONTROLLERS IAW MM 21-51-00-700-803. THE CONTROLLER FAULTED THE CONTROL CABIN TRIM VALVE. REPLACED TRIM AIR MODULATING VALVE FOR THE CONTROL CABIN, REF MM 21-61-21-400-801. AGAIN PERFORMED BITE TEST OF PACK/ ZONE TEMP CONTROLLERS. NO FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.
CONTROL CABIN TEMP CONTROL INOPERATIVE. COCKPIT TEMP VERY COLD REGARDLESS OF WHERE CONTROL IS POSITIONED. ONLY WAY TO KEEP IT WARM IS TO TURN TRIM AIR OFF AND CONTROLL CAB OFF. ACFT GROUNDED. FOUND CONTROLL CABIN SENSOR FAULT ON BOTH PACK/ZONE TEMP CONTROLLERS. REPLACED CONTROL CABIN TEMP SENSOR. OPS CK GOOD. REF AMM 21-61-10.
CABIN TEMP CONTROL WORKS ERRATICALLY. COCKPIT TEMP IS STILL TOO COOL EVEN WITH TEMP CONTROL FULL HOT. ACFT GROUNDED. FOUND TEMP SENSOR FILTER VERY DIRTY. CLEANED ALL TEMP SENSOR FILTERS REF MM 21-61-06. TESTS OK. SUCCESSFUL GROUND VERIFICATION COMPLETED.
CABIN TEMP SELECTOR TURNED UP TO MAX AND COCKPIT IS STILL COOLER THAN DESIRED. TRIM AIR OFF RESTORED CABIN HEAT. ACFT GROUNDED. BITE CKD BOTH TEMP CONTROLLERS FIM 21-61, TASK 801 NO FAULTS LOGGED. GVI LT PACK FOR LEAKS, NO LEAKS NOTED. OPS CKD FLT DECK TEMP CONT AND INDICATION IAW AMM 21-61-00, OPS CHECKED NORMAL. ALL GROUND FUNCTIONAL TESTS PASS. UNABLE TO VERIFY DEFECT. NO HISTORY 30 DAYS.
DURING FLIGHT, CART VTK FOLLOWED BY MAP ILLUMINATED. FOLLOWED QRH FOR LT FMC FAIL, CONTINUED ON SINGLE FMC OPS. ACFT GROUNDED. CYCLED FMC NR 1 CIRCUIT BREAKERS. OPS CHECKED NORMAL REF FIM 34-61, TASK 836 & 801. NO FAULTS LOGGED, GROUND VERIFICATION GOOD. REPLACED FMC NR 1. OPS TEST PASSED. SOFTWARE CROSSLOADED. IAW AMM 34-61-02-400-801.
FMC DISAGREE. ACFT GROUNDED. COMPLETED QRH 11.2. OPS NORMAL.
FMC DISAGREE ILLUMINATED. ACFT GROUNDED. RAN CHECKLIST, FMC DISAGREE EXTINGUISHED.
VTK & MAP FLAG ON F/O NAV DISPLAY. RT FMC POSITION BLANK ON POSITION SHIFT, PG 3. ALL CIRCUIT BREAKERS IN. ALL ELSE NORMAL. ACFT GROUNDED. REBOOTED NR 2 FMC, OPS OK. NO HISTORY.
SAT -2 RADIO INOPERATIVE, WILL NOT TRANSMIT OR RECEIVE. ALSO WHILE UTILIZING SAT -1 VOLUME CONTROL ON BOTH CAPT & F/O ACP DID NOT WORK. HF/SAT -2 VOL CONTROL CONTROLLED VOLUME OF SAT-1. ACFT GROUNDED. SATCOM NR 1 AND NR 2 COMMUNICATION SYS OPS CK NORMAL REF AMM TASK 23-15-00-730-801.
VTK AND MAP DISPLAYED ON LEFT PFD. FMC FAIL PROCEDURE INDICATED QRH PROCEDURE PERFORMED & CONTINUED WITH SINGLE FMC OPERATION. ACFT GROUNDED. CYCLED ACFT POWER. ACCOMPLISHED FMC OPS CHECK IAW MM 34-61-00. NO FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.
AUTOTHROTTLE WONT STAY ENGAGED, DISENGAGES AUTOMATICALLY FAULT 223-130-00. ACFT GROUNDED. FOUND NUMEROUS FAULT CODE 22-31687 FOR ASM 1. UNABLE TO DUPLICATE. REPLACED NR 1 ASM. INSTALLLATION TEST GOOD. REF A/C MM 22-31-91.
FMC DISAGREE ON GROUND. ACFT GROUNDED. QRH COMPLETED ON GROUND WITH A GOOD RESET.
WEATHER RADAR FAILED. PWS FAIL AND WXR FAIL MASSAGES IN FLIGHT. ACFT GROUNDED. PERFORMED WXR OPS TEST. TEST PASS REF MM 34-43-00. NO HISTORY PAST 90 DAYS. ACFT GOOD FOR SERVICE.
AUTOLAND TOUCHDOWN, RT OF CTR-LINE. ACFT GROUNDED. FFR SHOWS ONE FAULT - LEG FIVE FOR LOC NOT TUNED. CURRENT STATUS TEST PASS, NO FAULTS. ACCOMPLISHED LAND VERIFY TEST, BITE GRP. NR 49, TEST PASS. GROUND VERIFICATION SATISFACTORY.
NO SATCOM PROMPT ON THE ACARS MENU. ACFT GROUNDED. ACCOMPLISHED SATCOM SYS TEST NO DEFECT. REF AMM 23-15-00-730-801. GROUND VERIFICATION SUCCESSFUL.
EVALUATION AUTOLAND UNSUCCESSFUL, ACFT LINE UP WELL LEFT OF CENTERLINE, FLARED HIGHER THAN NORMAL AND ATTEMPTED TO LAND BEYOND TOUCHDOWN ZONE. PILOT TOOK OVER MANUALLY AND LANDED. ACFT GROUNDED. ACCOMPLISHED FIM 22-11, TASK 825. NO FAULTS ON LAND VERIFY. NO FAULTS LOGGED IN DFCS FAULT HISTORY.
FMC DISAGREE MESSAGE DISPLAYED ON ND WHILE ON GROUND. ACFT GROUNDED. PERFORMED QRH, OPS NORMAL.
AFTER LANDING, OIL FILTER BYPASS ILLUMINATED. WITH MAINT MESSAGE 79-31121, PERFORM FIM 79-21, TASK 806. REF SAME FIM, PERFORMED STEP G AT SCAVENGE OIL FILTER CLOGGING TRANSMITTER RECEPTACLE, DP0703, PINS 1702, .478 MEG OHMS. SHOULD BE LESS THAN 5 OHMS. S125 BAD. R & R OIL FILTER CLOGGING TRANSMITTER IAW AMM 79-21-07. REPLACED SCAVENGE OIL FILTER ELEMENT IAW AMM 79-21-06. CONFIRMED FAULT CLEARED IAW FIM TASK 79-21- 806. PERFORMED IDLE LEAK CK. LEAK CK GOOD. OK FOR SERVICE.
APU MAINT LIGHT ILLUMINATED AFTER APU START. FOUND FAULT CODE 49-91227 (LOW OIL QTY) LOGGED FOUR TIMES SINCE MARCH 10TH IN MX HISTORY LOG. PERFORMED FIM TASK 49-90, TASK 804 INITIAL EVALUATION. INTERMITTENT FAULT SINCE THIS FAULT CODE NOT SHOWING ON THE CURRENT STATUS PAGE. VERIFIED OIL QUANTITY TO BE FULL AT FMC AND AT APU SIGHT GLASS. INSPECTED WIRE HARNESS FROM P16 TO P10434. CHECKED RESISTANCE AND MEGGED WIRE HARNESS, NO FAULTS FOUND. WD 49-94-21 SUGGEST REPLACING OIL QTY LEVEL SENSOR. FIM TASK 49-90, TASK 804. REPLACED OIL LEVEL SENSOR REF MM 49-94-11. OIL LEVEL SENSOR INSTALLATION TEST CHECKED GOOD IAW MM 49-94-11-400-801, LEAK CHECKED GOOD. CDU BITE CHECK LOGGED NO FAULTS IN CURRENT STATUS, APU OPS CHKS GOOD REF MM 49-11-00-860-801.
ENROUTE AT FL340, AUTOTHROTTLE LIMIT ILLUMINATED ON UPPER DISPLAY UNIT. AUTOTHROTTLE BITE SHOWS NO EEC DATA 1 B. EEC ENGINE 1 BITE CHANNEL B NOT ACCESSIBLIE. FAULT 73-11281 CH B ALTERNATOR VOLTAGE. REMOVED & INSTALLED SERVICEABLE EEC REF 73-21-60-400-801 NR 1 ENG. OPS CHECK GOOD.
LT PACK OCCASIONALLY GOES FULL HOT ON TAXI IN, NOTED HOT ODOR THROUGHOUT ACFT THEN LT PACK TRIP OFF OCCURRED. REMOVED LT ACM REF 21-51-04-000-802-002 AND HP WATER SEPARATOR MIX BUFF REF 21-51-17-000-801. ACCOMPLISHED WITH STEP 3.G(3). REF21-51-04-400-802-002. INSTALLATION STOPPED AT STEP 3H.(3)(J). FINISHED INSTALLATION OF LT ACM IAW TASK 21-51-04-400-802-002. OPS CHECKED GOOD.