N486AS
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
FOUND CORROSION ON FWD CARGO BAY L/H AND R/H SIDE Z CHANNELS NEAR AFT BULKHEAD. CORRODED IN MULTIPLE AREAS. GROUNDED - YES. REMOVED AND REPLACED ZEE CHANNELS IAW DWG 143A7500.
FA REPORTS PLASTIC COVER OVER EMERGENCY LIGHT FELL OFF AT ROW 19. GROUNDED - YES. ROW 19; REPLACED EMERGENCY AISLE LIGHT LENS REF AMM 33-51-03. OPS CHECK GOOD.
LIGHT COVER FELL OFF AT ROW 19DEF. GROUNDED - YES. RE INSTALLED EMERGENCY AISLE LENS AT ROW 19DEF IAW AMM 33-51-03 SYS OPS CHECK NORMAL.
EMERGENCY EXIT LIGHT AT R2 DOOR MISSING BULB. GROUNDED - YES. REPLACED EMERGENCY EXIT LIGHT AT R2 DOOR, OPS CHECKS GOOD. REF B737 AMM 33-51-01.
ALL LIGHTS ASSOCIATED WITH POWER SUPPLY M1670 ARE INOP. GROUNDED - YES. REMOVED & REPLACED POWER SUPPLY M1670 & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-806.
EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M2335 ARE INOP. GROUNDED - YES. REMOVED & REPLACED POWER SUPPLY M2335 & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-806.
EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1676 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1676 & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-806.
EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1695 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1695 & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-806.
EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1672 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1672 & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-806.
AFT CARGO DOOR ENTRY, ENTRY DOOR THRESHOLD HAS CORROSION 3" AND ACROSS DOOR OPENING. (MARKED IN RED). GROUNDED - YES. REMOVED CORROSION FROM AFT CARGO DOOR THRESHOLD WEB, ORIGINAL THICKNESS; .050 1 REMOVED; .019, REMAINING: .031 AND FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-60-15. REMOVED AFT CARGO DOOR THRESHOLD WEB IAW B737-900ER SRM 51-40-02. LOCATED AND DRILLED NEW WEB PN:146A8123-6, PO:0. INSTALLED NEW AFT CARGO DOOR THRESHOLD WEB IAW BOEING DWG:146A8340 REV:G & B737-900ER SRM 51-40-02.
EMERGENCY LIGHTS NEAR L1 DOOR INOP. GROUNDED - YES. REPLACED BATTERY PACK ABOVE L1 DOOR OPS CHECK GOOD REF AMM 33-51-06.
EMERGENCY LIGHTS BY R-1 DOOR AND L-2 DOOR INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACKS FOR R-1 AND L-2 DOOR EMERGENCY LIGHTS IAW AMM 33-51-06-960-805, OPS CHECK GOOD. ALTERNATE DEACTIVATION PROCEDURES USED IAW MPM CH5, 5-07-01, TABLE 3.
"L2" EXIT LIGHT LENS COVER MISSING. GROUNDED - YES. INSTALLED NEW EMERGENCY LIGHT LENS AT AFT L/H GALLEY. OPS CHECK GOOD.
#1 FIRE HANDLE DOES NOT ILLUMINATE ON OVHT/FIRE TEST ON LOOP B. GROUNDED - YES. ON DEFERRAL.
WHILE ACCOMPLISHING T/C 78273000 ENG 2 LONG TIME FAULT MSG 75-10832 THE T3 SIGNAL IS OUT OF RANGE X=0,1,2 WAS SEEN. GROUNDED - YES. ON DEFERRAL.
WHILE PREFORMING T/C 78273000 FOUND FAULT CODE 75-10832 T3 OUT OF SIGNAL - LONG TIME FAULT. GROUNDED - YES. ON DEFERRAL.
A/P A FAILED TWO TIMES. 1ST RIGHT AT ALT INTERCEPT & 2ND RIGHT AT TOP OF DESCENT. BOTH TIMES THE CONTROLS WERE VERY HEAVY AS I TOOK OVER MANUALLY. GROUNDED - YES. (RESOLVED ON W/O: 1973438 TASKCARD: N/R-00008 ) AS PER T/C 22-11 TASK 801 AUTOPILOT A&B CECKED AND NO FAULT SEEN ON CURRENT STATUS OR FAULT HISTORY. AND NO PREVIOUS DEFECTS SEEN. THIS CLOSES DEFECT 60685744 SEAMC NOTIFIED.
MCP VERTICAL SPEED WINDOW HAS AREA OF BLEED THROUGH. GROUNDED - YES. (RESOLVED ON W/O: 1971902 TASKCARD: N/R-00003 ) REPLACED MCP REF AMM 22-11-34. OPS CHECK GOOD, LAND VERIFY TESTS SUCCESSFUL. THIE CLEARS MEL 22-16I. PLACARDS REMOVED, SEAMC DARWIN NOTIFIED.
COCKPIT WINDOWS L1 & R1 HAVE WHITE BUBBLES & DELAMINATION AT TOPS AND BOTTOMS AT ELECTRICAL. GROUNDED - YES. ON DEFERRAL.
WHILE ACCOMPLISHING T/C 78273000, FOUND ENG #2 LONG TIME FAULT 75-10832, THE T3 SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.
AFTER ENGINE RUN START LEFT LEFT DUCT PRESSURE INDICATOR SHOWED 9 PSI AND THEN A SPLIT BETWEEN LEFT AND RIGHT INDICSATORS OF GREATER THAN 20 PSI ABOVE IDLE. GROUNDED - YES. PERFORMED ENGINE AIR BLEED HEALTH CHECK AND FOUND HIGH STAGE REGULATOR AND HGH STAGE VALVE AT FAULT.REMOVED AND REPLACED HIGH STAGE REGULATOR REF MM 36-11-07-000-801 AND 36-11-07-400-801 AND REMOVED AND REPLACED HIGH STAGE VALVE REF MM 36-11-06-000-801 AND 36-11-06-400-801 OPS AND LEAK CHECK GOOD.DUCT PRASSURE HOLDS STEADY FOR BOTH SIDED @ 20 PSI.GROUND VERIFICATION SUCCESSFUL.
ENGINE #1 FIRE LOOP B INOP. GROUNDED - YES. ON DEFERRAL.
FO'S MCDU DISPLAY INTERMITTENTLYY LOSING INDIVIDUAL CHARACTERS ON BOTH FMC AND ACARS PAGES. GROUNDED - YES. RELEASED PER MEL 34-36L, FO MCDU INOP. SEAMC ARNIE NOTIFIED @ 2105Z. REMOVED AND REPLACED FO MCDU AND PERFORMED GOOD ISNTALLATION TEST, THIS CLEARS MEL 34-36L SEAMC NOTIFIED WILL, AS PER AMM 34-61-01/401.
RIGHT FMC DISPLAY BEGAN TO FAIL IN FLIGHT. MOSTLY THE TOP FOUR LINES OF TEXT/NUMBERS, BUT OCCASIONALLY THE BLINKING FAILURE WOULD TEXTEND TO LOWER TEXT LINES. ATTEMPTED TO ADJUST BRIGHTNESS OR CHANGE PAGES. NOT SUCCESSFUL. GROUNDED - YES. CHECKED RIGHT MCDU, OPS TEST NML REF MM 34-61-01. NO FURTHER DEFECTS NOTED. THIS CLEARS MEL 34-36L C/N 16116486 PLACARDS REMOVED SEAMC JOE NOTIFIED.
FIRE LOOP B FAULT INDICATED ON #1 ENGINE. GROUNDED - YES. ON DEFERRAL.
AT CRUISE VTK ON RIGHT FMC. BOTH MAP VTK AFTER LANDING RE-BOOTED WITHOUT QRH. GROUNDED - YES. R/H FMC VTK NUISANCE FAULT & GND REBOOT. REF MM/FIM 34-61 TSK 836 RESYNC'ED FMC'S BITE TESTS OK.
ON FIRE WARNING TEST, #1 FIRE HANDLE LIGHT INOP. GROUNDED - YES. ON DEFERRAL.
#1 FIRE HANDLE DOES NOT ILLUMINATE DURING TEST. GROUNDED - YES. ON DEFERRAL.
ALL LIGHTS ASSOCIATED WITH BATTERY PACK M2626 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED EMER LIGHT POWER SUPPLY AT M2626 S/N 127604 IAW B737-900 AMM 33-51-06-960-806.OPS CHECK GOOD.
ALL LIGHTS ASSOCIATED WITH BATTERY PACK M2627 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED EMER LIGHT POWER SUPPLY AT M2627 S/N 127719 IAW B737-900 AMM 33-51-06-960-806.OPS CHECK GOOD.
R2 DOOR EMERG EXIT LIGHT LENS FELL OFF. GROUNDED - YES. REMOVED AND REPLACED THE R2 DOOR EMERGENCY LIGHT LENS COVER AS NEEDED.
NO 1 ENG OVERHEAT FIRE TEST FAILED. GROUNDED - YES. UNABLE TO DUP/VERIFY DISCREP. OPS TEST GOOD NUMEROUS TIMES REF. 22-11-00.INSPECTION AND SHAKE DOWN OF A&B DETECTORS AND WIRING HAD NO DISCREP. REPLACED CORE FIRE DETECTOR HARNESS MWO326 REF. B737-900 AMM 26-11-02. OPS CHK GOOD.
CONT CAB ZONE TEMP RESETS MASTER RECALL. GROUNDED - YES. PER B737-900 FIM 21-62 TASK 801 + 842 PACK TEMP CONTROL BITE #2 CTRL HAD FLT DECK TRIM VALVE. VERIFIY PASSED. FAULT CLEARED. OPERATED PACKS. CONT CAB TEMP OPERATED NORMALLY.NO HISTORY 30 DAY.
DURING BLADE LUBE PER ASA TC 7840708 DETERMINED 6 BLADE SPACERS PN 440-001-262-0 ARE WORN TO LIMIT. GROUNDED - YES. REMOVED AND REPLACED BLADE SPACERS PER ASA TC 7840708.
REF ASA T/C 78472000 #2 ENG INLET AND FAN BLADES-DETAILED INSPT FOUND #5 AT 5 O'CLOCK POS STRUT PANEL HAS 2 EACH DELAMINATED FASTENER INSERT, AFT UPPER END (M ALF. GROUNDED - YES. REPLACED #5 AT 5 O'CLOCK POS STRUT PANEL REF B737-900 AMM 72-23-07.
REF ASA T/C 78472000 #1 ENG S/N 862434 FRONT SPINNER CONE MISSING OVER 50% OF WHITE SPIRAL SHAPED MARK. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FRONT SPINNER CONE REF B737-900 AMM 72-21-01.
L2 SLIDE LIGHT INOP. GROUNDED - YES. RELAMPED REF B737-900 AMM 33-51-04. OPS NORMAL.
ENG #1 OVERHEAT CAUTION LIGHT DOES ILLUMINATE DURING OVHT/FIRE TEST WITH SWITCH IN NORMAL POSITION. LOOP A TESTS OK. GROUNDED - YES. ON INITIAL EVALUATION RETURNED ENGINE 1 LOOP SELECTOR TO NORMAL POSITION. OPERATIONAL TEST OF FIRE DETECTION SYSTEM GOOD. ACCOMPLISHED BITE TEST OF FIRE DETECTION MODULE, NO FAULTS DISPLAYED. AS PRECAUTION, ACCOMPLISHED B737-900 FIM 26-10 TASK 805, CLEANED AND TORQUE CHECKED LOOP B TERMINAL LUGS AND ACCOMPLISHED GVI OF DETECTORS. OPS CK OF FIRE DETECTION SYSTEM GOOD. NO DEFECTS NOTED.
AFT CARGO FIRE TEST IN "NORMAL" WILL NOT TEST AND SHOWS "DETECTOR FAULT" "DET SELECT B." APPEARS INOP SYSTEM TESTS NOORMAL IN "DET SELECT A" POSITION. GROUNDED - YES. REMOVED & REPLACED AFT CARGO SMOKE DETECTOR (M2245). OPS CHECK GOOD REF B737-900 AMM 26-16-01.
AFT CARGO FIRE TEST IN "NORMAL" WILL NOT TEST AND SHOWS "DETECTOR FAULT" "DET SELECT B." APPEARS INOP SYSTEM TESTS NOORMAL IN "DET SELECT A" POSITION. GROUNDED - YES. ON DEFERRAL.
ON MASTER CAUTION RECALL CONT CAB ZONE TEMP ILLUMINATES. LIGHT EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED LH TEMPERATURE CONTROL VALVE IAW B737-900 AMM 21-51-10-000-801 AND 21-51-10-400-801. ORIG SUBMISSION DATE: 12/19/2022
AFT ARM LIGHT FAILS TO ILLUMINATE WHEN TESTING THE AFT CARGO FIRE PANEL. GROUNDED - YES. PER B737-900 FIM 26-16 TASK 806, REMOVED AND REPLACED LOWER AFT CEU (M2237). OPS CHECK GOOD. REF B737-900 AMM 26-16-02/401.
RIGHT "PACK" LIGHT ILLUMINATED AT THE GATE. BOTH PACKS IN AUTO. ATTEMPTED "TRIP RESET". "PACK" LIGHT ILLUMINATED AGAIN. GROUNDED - YES. BITE OF #2 CONTROLLER SHOWS TCV FAULT ON VERIFY. PACK LIGHT COMES ON AFTER DEMAND IS PUT ON RIGHT PACK. REMOVED AND REPLACED R/H PACK TCV IAW B737-900 AMM 21-51-10. OP CHECKS NORMAL. BITE CHECK SHOWS NO FAULTS.
RIGH "PACK" LIGHT ILLUMINATED AT GATE. GROUNDED - YES. REMOVED AND REPLACED RH PACK ACM AS REQUIRED REF B737-900 AMM 21-51-04-400-802-002. RAN RH PACK NO LEAKS FOUND BITE CK NO FAULTS RAN PACK 30MIN. NO TRIP.
FOUND IDG AIR/OIL COOLER LEAKING ON #1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED IDG AIR/OIL COOLER ON #1 ENGINE PER B737-900 AMM 24-11-21. IDG AIR/OIL COOLER INSTALLATION TEST COMPLETED, LEAK CHECK GOOD.
AT TOD RT PACK LIGHT ON RECALL ILLUMINATED RAN QRH. R PACK LIGHT EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. C/W B737-900 FIM 21-62 TASK 854 RIGHT RAM AIR EXIT ACTUATOR - FAULT ISOLATION. CYCLED 28V DC FOR THE RIGHT SRADA TO ERASE THE SRADA INTERNAL FAULT MEMORY AND PERFORMED BITE CHECK OF PZTC REF FIM 21-62 TASK 801, NO FAULTS FOUND. PERFORMED CABIN TEMPERATURE CONTROL AND INDICATION - OPERATIONAL TEST REF B737-900 AMM TASK 21-61-00-700-807-002, ALL TEMPS INDICATE NORMAL AND NO FAULTS ON RECALL. ALL TESTS PASS.
IN FLARE, A/C ROLLED LEFT 10-15 DEG AND DEVIATED LEFT OF CENTERLINE. APPROACH WARN ILLUMINATED. LANDED MANUALLY RWY 34L, ILS CLEAR ZONE APPEARED PROTECTED. GROUNDED - YES. C/W B737-900 FIM 22-11 TASK 899 INBOUND CONDITION RELATED TO AUTOLAND FIM, BITE GRP #20 FAULT REVIEW NO RELEVANT FAULTS IN DFCS FAULT HISTORY,C/W B737-900 AMM 22-11-00/201, BITE GRP #49, LAND VERIFY TEST. LAND VERIFY SUCCESSFUL. C/W FIM 34-36 TASK 899 IN-FLIGHT HGS CONDITION RELATED LANDING OR TAKEOFF FIM, SECTION 100, HGS FAULT ISOLATION, NO RELEVANT FAULTS LOGGED C/W HGS SYSTEM TEST REF SECTION 500 OF THE HGS-4000 SMM 34-36-00, NO FAULTS FOUND.
LEFT FMC FAIL FOR 30 SECONDS DURING DESCENT. RESTORED ITSELF AFTER 30 SECONDS. GROUNDED - YES. RESET LEFT FMC REF B737-900 FIM 34-61 TASK 836 OPS CK GOOD.
FO'S FMC CDU SCREEN, TOP PORTION FLICKERING INTERMITTENTLY. GROUNDED - YES. INSPECTED C/B, NO C/BS OUT. PERFORMED OPS TEST REF B737-900 34-61-01-400-802. CYCLED POWER FOR TROUBLESHOOTING PURPOSE. NO DEFECTS NOTED. OK FOR SERVICE.
FO CDU SCRAMBLED/INTERMITTENT. GROUNDED - YES. CONFIRMED FAULT- CYCLED MCDU #2 CB. PERFORMED SYS OPS TEST - NO FAULTS FOUND REF B737-900 AMM 34-61-00.
FO'S CDU - INTERMITTENT BLANKING. GROUNDED - YES. FO'S CDU WORK NORMAL IAW B737-900 AMM 34-61-00 AND CDU SOFTWARE ALSO CHECKED PER AMM 34-61-00-750-801, THE CDU SHOW CORRECT CONFIGURATION.
#2 ENG OIL FILLER CAP DAMAGED. GROUNDED - YES. REMOVED AND REPLACED #2 ENG OIL FILLER CAP PER B737-900 AMM 79-11-01.
PER T/C 78472010 #1 ENG FAN BLADE LUBE FRONT SPINNER CONE WASHERS ARE WORN. GROOVES. GROUNDED - YES. REMOVED AND REPLACED #1 ENG FRONT SPINNER CONE WASHERS REF T/C 78472010.
PER T/C 78472010 #1 ENG FAN BLADE LUBE SPACERS #2, 3, 10, 11, 13, 14, 17, 18, 19, AND 21 ARE DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #1 ENG SPACERS #2, 3, 10, 11, 13, 14, 17, 18, 19, AND 21 REF T/C 7842010.
PER T/C 78472010 #1 ENG FAN BLADE LUBE ALL BOLTS THREADS FRONT SPINNER CONE ARE ROUNDED. GROUNDED - YES. REMOVED AND REPLACED #1 ENG FAN BLADE FRONT SPINNER CONE BOLTS REF T/C 78472010.
FOLLOW-UP TO REPORT OF APU NOT STARTING IN FLIGHT WITH FAULT 49-41010. (#PRI2/ETOPS) ETOPS SIGNIFICANT SYSTEM TASK AFFECTS APU ON DEMAND IN-FLIGHT START CAPABILITY. UPON COMPLETION, CONTACT MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS AFFECTED APU IN-FLIGHT START CAPABILITY, MEL 49- 99A IS REQUIRED PRIOR TO FLIGHT. GROUNDED - YES. C/W TSR711671, ALL PROCEDURES; REMOVED AND REPLACED APU LUBE MODULE I.A.W. B737-900 AMM 49-91-11. OPS CK AND LEAK CK GOOD, NO DEFECTS NOTED. THIS CLEARS TSR711671.
REF LOG PAGE # 60043791 APU FAIL FIRST START ATTEMPT. GROUNDED - YES. REMOVED AND REPLACED APU LUBE MODULE I.A.W. B737-900 AMM49-91-11. OPS CK AND LEAK CK GOOD. NO DEFECTS NOTED. THIS CLEARS TSR711671.
#1 ENG BLEED REG VALVE THREADED SELF LOCKING CONNECTOR FOUND DAMAGED. CONNECTOR ID DP1102. GROUNDED - YES. RMVD & RPLCD MW0311 ENGINE WIRING HARNESS REF B737-900 AMM 73-21-06-000-802-F00 AND AMM 73-21-06-400-802-F00. ACCOMPLISHED ALL TESTS PER AMM 73-21-06-400-802-F00 PARA F (C) ALL TESTS PASSED. A/C PUT INTO THE AIRMOD PER AMM 32-09-00-860-801 AND AMM 32-09-00-840-899. A/C RETURNED TO GROUND MODE PER AMM 32-09-00-840-899. GROUND VERIFICATION TESTS PASSED REF AMM 73-21-06-400-802-F00 PARA F (C).
#1 COWL ANTI ICE ILLUMINATED IN CRUISE. WENT OUT WHEN ENG SLOWED TO .76M AND BELOW 88% N1. GROUNDED - YES. REMOVED & REPLACED #1 ENG COWL TAI VLV LK & OPS NORMAL REF B737-900 AMM 30-21-11.
LEFT FMC FAILURE IN CRUISE JUST PRIOR TOO FAILED FOR APPROX 2 MIN AFTER OPERATION RETURNED. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 836 OPS TEST NORMAL.
MCP PANEL WAS INOP UPON ARRIVING TO AIRCRAFT. GROUNDED - YES. INIITAL EVALUATION, NO FAULTS ON DFCS BITE FAULT REVIEW IAW B737-900 AMM 22-11-00-740-801. PASSES ALL MCP TESTS. FCC LRU REPLACE TEST, NO FAULTS. PERFORMED ALL LIBRARY TESTS IAW AMM 22-11-00-740-806, NO FAULTS. ALSO REF AMM 22-00-01-730-803 CAT III ALD NOW AUTHORIZED. IN ADDITION, PERFORMED HGS SYSTEM TEST IAW SMM 34-36-00 SEC 500. NO FAULTS FOUND.
CONT CAB ZONE TEMP LIGHT ON RECALL. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 801 PACK TEMP CTL BITE TEST. NO FAULTS FOUND. GREEN "GO" LIGHT CAME ON AFTER PUSHING "VERIFY" SWITCH. CONT CAB "ZONE TEMP" LIGHT WENT OFF AND STAYED OFF AFTER RUNNING PACKS.
SPD AND ALT FLAG ON FO COMPUTER. GROUNDED - YES. RESET FMC COMPUTER PER B737-900 FIM 34-61 TASK 837, SPD AND ALT FLAG DISAPPEARED. BITE TEST OKAY.
#1 HF/SAT XFER SWITCH WILL NOT TRANSFER. GROUNDED - YES. RMVD & RPLCD HF / SAT TRANSFER PANEL REF MM 23-15-00. OPS NML PER SAME. ETOPS GND VERIFICATION TEST SUCCESSFUL. SEAMC PAT NOTIFIED. 1 EA C/B ON P18-2 OPENED, TAGGED, UNTAGGED, RESET.
PER THE PREVIOUSLY ISSUED MEL 21-32B THE MASTER CAUTION RECALL CLEARED THE LEST PACK LIGHT. HOWEVER, ON CLIMBOUT THE LEFT PACK ILLUMINATED AGAIN. THE CHECKLIST IN THE QRH CALLED FOR TURNING THE LEFT PACK OFF WITH THE ISOLATION VALVE CLOSED WHEN IT FAILED TO RESET. AIRCRAFT PRESSURIZED NORMALLY. LATER IN CLIMBOUT MASTER CAUTION RECALL CLEARED THE PACK LIGHT PASSING FL 290. BOTH PACKS OPERATED NORMALLY FOR REMAINDER OF THE FLIGHT. GROUNDED - YES. ACCOMPLISHED BITE CK & FOUND TCV FAILED REMOVED & REPLACED L/H PACK TCV REF B737-900 AMM 21-51-10 OPS & LK CK GOOD REACCMP BITE CK NO FAULTS FOUND.
AFTER START RECALL, LEFT PACK ILLUMINATED, RESETS WITH M.C. RESET. GROUNDED - YES. ACCOMPLISHED BITE CK & FOUND TCV FAILED REMOVED & REPLACED L/H PACK TCV REF B737-900 AMM 21-51-10 OPS & LK CK GOOD. REACCOMP BITE CK NO FAULTS FOUND.
LEFT PACK LIGHT ON. WILL NOT RESET. GROUNDED - YES. REF B737-900 FIM 21-53 TASK 820 FOUND DUAL CHANNEL FAULT-PZTC 1 TCV, PZTC 2 STBY TCV. REF FIM 21-62 TASK 830 FAULT CLEARS ON VERIFY WITH NO HISTORY 30 DAYS. REF FIM 21-62 TASK 828 CLEARED FAULT AND INSPECTED STANDBY TCV SENSE LINES WITH NO DEFECTS NOTED AND OP CK GOOD PER MM 21-51-11-400-801. MAINT PROCEDURES REVERSED PLACARDS REMOVED MEL CLEARED SEAMC JAROD NOTIFIED.
UNSUCCESSFUL CSS. APU AUTO SHUT DOWN AND FAULT LIGHT DURING START AT FL330. GROUNDED - YES. ACCOMPLISHED TASKS REF B737-900 FIM 49-30 TASK 803 (G) 1 THRU 4. NO DEFECTS NOTED. APU ROTATES FREELY. DUE TO THE NATURE OF THE DISCREPANCY (MULTIPLE FAILED CSS) CW FIM 49-30 TASK 803 PAR H(2). FUEL FLOW DIVIDER REPLACED REF B737-900 AMM 49-31-15. OPS CHECK GOOD AND LEAK CHECK GOOD. REF DEFECT NO. 60151878 FOR PREVIOUSLY DEFERRED CSS 49-99A AND DEFECT NO. 60151891 FOR TOP DEFERRAL. FCU PREVIOUSLY REPLACED ON 02/27/2021. THIS CLEARS THE DEFECT. MIG 6 PLACARDS REMOVED. SEAMC JARED NOTIFIED.
FWD ZONE TEMP ILLUM ON MASTER CAUTION RECALL. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 801, TRIM VALVE AT FAULT. PERFORMED FIM 21-62 TASK 833 BITE INITIAL EVAL GOOD AFTER BITE PERFORMED. NO HISTORY LAST 30 DAYS. OPS NML REF. MM 21-61-00. THIS CLEARS MEL 21-19G PLC C/N 20035486. SEAMC MIKE NOT.
INSPECTION FOUND 10 SPACERS DAMAGED WHILE ACCOMPLISHING T/C 78472010 OF #1 ENG. (2,3,5,6,7,8,9,15,21,22). GROUNDED - YES. REMOVED & REPLACED 10 SPACERS ON # 1 ENG (2,3,5,6,7,8,9,15,21,22) REF B737-900 AMM 72-21-02. PER T/C 7842010. NO DEFECTS NOTED.
SATCOM LOCK UP ON GRD. GROUNDED - YES. RESET SYSTEM PER QRH. OPS NORMAL.
LEFT PACK LIGHT ILLUMINATES ON RECALL. PRIMARY CONTROLLER INOP. GROUNDED - YES. LH PACK TEMPERATURE CONTROL BITE TEST CALLS OUT LH TEMPERATURE CONTROL VALVE. REMOVED AND REPLACED LH TEMPERATURE CONTROL VALVE IAW B737-900 AMM 21-51-10-000-801 AND AMM 21-51-10-400-801. ETOPS GROUND VERIFICATION TEST GOOD IAW AMM 21-61-00-700-806-002.
LEFT PACK LIGHT ILLUMINATES WITH MASTER CAUTION RECALL, EXTINGUISHES AFTER PRESSING MASTER CAUTION RESET. GROUNDED - YES. REL PER MEL 21-32B LT HAND PACK CONTROL SYS. NR 1 ZTC LOGGED TCV FAULT - BITE TEST GOOD. FAULT RESET. FLT CREW PLACARD REMOVED. SEAMC CHRIS NOTIFIED.
L PACK LIGHT ILLUMINATED DURING RECALL BUT EXTINGUISHES WHEN RESETTING MASTER CAUTION SYSTEM. GROUNDED - YES. (RESOLVED ON W/O: 1883367 TASKCARD: N/R-00001 ) VERIFIED DISCREP. ACCOMPLISHED B737-900 FIM 21-62 TASK 801. THIS PACK TCV FAULT SHOWN. PER FORMED FIM 21-62 TASK 830, INITIAL EVALUATION GOOD. NO HISTORY LAST 30 DAYS. RAN PACKS WITH VARING TEMPS, DISCREP. DID NOT RETURN. THIS CLEARS MEL 21-32B, PLC C/N 27019486 RMVD. SEAMC NOT. WILL.
LEFT START VALVE OPEN LIGHT ILLUMINATED AFTER START. GROUNDED - YES. (RESOLVED ON W/O: 1877189 TASKCARD: N/R-00002 ) REMOVED AND INSTALLED NEW MW0312 NACELLE WIRING HARNESS ON #1 ENGINE PER B737-900 MM 71-51-03/401, OPS CHECK NORMAL. NO FAULTS FOUND. GROUND VERIFICATION SUCCESSFUL. OPENED, COLLARD, RESET 4 C/B'S. PLACARD REMOVED. THIS CLEARS MEL 80-3B. SEAMC TODD NOTIFIED.
#2 PACK LIGHT ILLUMINATED ON RECALL. RESETS WITH MASTER CAUTION. GROUNDED - YES. PERFORMED PACK ZONE TEMPERATURE CONTROL UNIT (PZTC) BITE #2 PZTC FAULTED RH RAM AIR EXIT ACTUATOR. ACCOMPLISHED B737-900 FIM 21-62 TASK 854 INITIAL EVALUATION AFTER PZTC BITE FAULTS CLEARED. GROUND VERIFICATION TEST SUCCESSFUL.
ON ENG #2 ENG START VALVE OPEN LIGHT REMAINED ON. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE START VALVE REF B737-900 AMM 80-11-03. OPS AND LEAK CK GOOD.
STARTING #1 ENGINE AT THE END OF START SEQUENCE ENG 1 START VALVE OPEN LIGHT REMAINED ILLUMINATED - ALL THREE ENG LIGHTS FOR #1 ENG ILLUMINATED THEN FLASHED ON AND OFF - #1 START VALVE OPEN LIGHT STAYED ILLUMINATED REF QRH PROCEDURE - ISOLATION + PAC S/W WERE OFF - I FAILED TO PROPERLY APPLY STEP 6 - APU BLEED AIR SWITCH TO OFF - START VALVE OPEN LIGHT REMAINED ON - ENGINE SHUT DOWN. GROUNDED - YES. RESECURED ENGINE #1 START VALVE CONNECTOR MW0312. VERIFIED START VALVE IN CLOSE POSITION. PERFORMED DRY MOTOR AND START VALVE OPS NORMAL PERFORMED 2 NORMAL ENGINE STARTS WITH FLIGHT CREW, ALL ENGINE PARAMETERS NORMAL IAW B737-900 AMM TASK 71-00-00-800-808. A/C OK FOR SERVICE.
"CONT CAB" TEMP CONTROLLER ZONE TEMP LIGHT. LIGHT GOES OUT WHEN MASTER CAUTION PUSHED. GROUNDED - YES. PZTC #2 FAULTED FLIGHT DECK TRIM VALE, RESET FAULT & OPS BOTH PACKS FOR 20 MINUTES, RECALL TEST PASSED NO FAULTS NOTED, B737-900 AMM 21-00-00 & AMM 21-51-00-700-803.
DURING DESCENT LEFT SIDE WWINDOW HEAT OVERHEAT LIGHT ILLUMINATED. ACCOMPLISHED QRH & LIGHT REMAINED EXTINGUISHED. GROUNDED - YES. ACCOMPLISHED WINDOW HEAT SYSTEM OPERATIONAL TEST, OPS NML REF B737-900 AMM 30-41-00-710-801. DUE TO HISTORY SUGGEST SIDE WINDOW CHANGE. TWO WINDOW HEAT CONTROL UNIT BEEN REPLACED AND SPARE SENSOR WAS READING BAD. REMOVED AND INSTALLED L/H SLIDING WINDOW ASSY REF AMM 56-12-11. LEAK AND OPS CHECK GOOD.
MAIN CABIN FWD WET AREA FLOOR PANEL 141A5810-729 HAS PUNCTURE DAMAGE. GROUNDED - YES. REPAIRED MAIN CABIN FWD WET AREA FLOOR PANEL 141A5810-729 IAW B737-900ERSRM:53-0050-2R-2.
FWD CARGO PIT, CARGO DOOR THRESHOLD WEB IS CORRODED. GROUNDED - YES. REMOVED CORROSION ON WEB. ORIG THICKNESS .045 PER B737-900ER SRM 53-30-15-OI-1; REMOVED .008 MATERIAL; REMAINING MATERIAL .037 TO BE OUT OF LIMITS PER B737-900ER SRM 53-30-15-1A-1. TOOL #T8224K.LOCATED AND DRILLED NEW WEB PER B737-400ER SRM 51-40-05. REMOVED OLD WEB PER B737-900ER SRM 51-40-02. INSTALLED NEW NUTPLATES PER B737-900ER SRM 51-40-02. INSTALLED NEW WEB IAW B737-900ER DWG 143A8120, REV T.
MAIN CABIN AFT WET AREA FLOOR PANEL 147A5810-447 HAS EDGE DELAMINATIONAND CORRODED INSERTS (PARTS RACK ITEM). GROUNDED - YES. REMOVED AND REPPLACED DAMAGED INSERTS AND REPAIRED DAMAGE ON FLOOR PANEL147A5810-447 IAW B737-900ER SRM 53-00-50-2R.
MAIN CABIN FWD WET AREA FLOOR PANEL 141A5810-766 HAS DAMAGED INSERT (PARTS RACK ITEM). GROUNDED - YES. REPAIRED MAIN CABIN FWD WET AREA FLOOR PANEL 141A5810-766 IAW B737-900ERSRM 53-00-50-2R-1 & 0.
ON CLM FO SIDE FD FLAG ILLUMINATED, ON RECALL - MACH TRIM FAIL & SPEED TRIM FAIL ILLUMINATE. GROUNDED - YES. CONFIRMED FCC B FAILED - UNABLE TO ACCESS BITE. R&RD SAME PER B737-900 AMM 22-11-33. ACCOMP LRU REPLACEMENT TEST AND SOFTWARE P/N VERIFICATION, BOTH CK GOOD. REQUIRES LAND VERIFY TEST. ACCOMPLISHED LAND VERIFY TEST REF AMM 22-11-33-400-801 J (1) A(1) TEST PASS.
CAPT LEFT SLIDING WINDOW HAD OVERHEAT LIGHT. GROUNDED - YES. LIGHT WENT OUT WHEN TURNED OFF, 5 MIN WAIT, ON- NO LT.
ON DESCENT AT ABOUT 10,000FT AND 250KTS, THE LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. EXTINGUISHED AS SOON AS WE TURNED THE SWITCH OFF. WINDOW WAS WARM BUT NOT HOT. GROUNDED - YES. OPERATED ALL WINDOW HEAT FOR APPROXIMATELY 25 MINUTES WITH NO DEFECTS NOTED. C/W L2 WINDOW HEAT BITE PROCEDURE AND BIT VERIFY PASSED BITE TEST. NOTED WINDOW SENSOR FAULT IN FAULT HISTORY. FOUND PRIMARY WINDOW HEAT SENSOR TO BE WITHIN RESISTANCE LIMITS AND NO FAULTS NOTED. AS A PRECAUTION ACCESSED L2 WINDOW HEAT SENSOR AND MOVED FROM PRIMARY SENSOR TERMINAL TO SPARE SENSOR TERMINAL. OPS CHECKS FAILED, FOUND SECONDARY SENSOR WITH MEGOHM RESISTANCE. SWAPPED FROM SPARE SENSOR TERMINAL BACK TO PRIMARY SENSOR TERMINAL. AGAIN, L2 WINDOW HEAT OPS CHECKS OK. AS A PRECAUTION REPLACED L2 WINDOW HEAT CONTROLLER WITH SERVICEABLE UNIT, OPS CHECKS OK. REF B737-900 FIM 30-41 TASK 801, FIM 30-41 TASK 811, B737-900 WDM 30-41-12, B737-900 AMM 30-41-21, AND AMM 30-41-11.
LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED IN FLIGHT AND EXTINGUISHED WHEN SWITCH PLACED TO OFF. GROUNDED - YES. ACCOMP OPS CK OF WINDOW HEAT SYS PER B737-900 AMM 30-41-00, OPS NML, GND VERIFICATION SUCCESSFUL.
PER T/C 78472010 #1 ENG FAN BLADE LUBE #1,10,13, 16,17,19,20 AND 24 SPACERS ELASTOMERS ARE DISBONDED . GROUNDED - YES. REPLACED SPACERS PER TC# 78472010.
RT PACK LIGHT ILLUMINATED DURING CLIMB OUT ABOUT 24K FEET. RAN CHECK LIST LIGHT STAYED ILLUMINATED. RETURNED TO SEATTLE PER DISPATCH. GROUNDED - YES. DIVERSION TIME 35 MINUTES - ACCOMP WIRING CHECKS PER TSR 710605 STEP 1 NO DISCREPANCIES, STEP 2 NO DISCREPANCIES, STEP 3 NO DISCREPANCIES, RECONNECTED D3872, V141 INSTALL TEST PASSES REF B737-900 AMM 21-51-10/401 STEP 4 NO DISCREPANCIES. ACCOMP STEP 5 REHEATER CHECK FOR CRACKS NO DEFECTS NOTED. ACCOMP STEP 6 FORCES WERE L/H-8LBS, R/H-9LBS WITHIN LIMITS REF AMM 21-51-21. BEARINGS FOR BOTH L/H & R/H DEFLECTOR DOORS, MODULATING DOORS AND ACTUATORS FOUND BINDING. REPLACED BEARINGS ALL OPS NORMAL.
ON APPROACH DESCENDING THROUGH 7000FT, LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED, RAN CHECKLIST TO TURNING SWITCH OFF. AFTER LANDING COMPLETED CHECKLIST AND OVERHEAT DID NOT RETURN. GROUNDED - YES. VERIFIED WHCU FOR L/H "SIDE WINDOW" OPS TEST OK REF B737-900 AMM 30-41-11-400-801. ETOPS GROUND VERIFICATION COMPLETE.
RIGHT PACK LT ILLUMINATED ON CLIMB OUT, RAN QRH, LT REMAINED ON. GROUNDED - YES. ACCOMPLISHED #2 PZTC BITE AND HAD RAM AIR INLET ACTUATOR HARD FAULT REF B737-900 AMM 21-61-00. REMOVED AND REPLACED R/H RAM AIR INLET ACTUATOR REF AMM 21-51-21-000-801. OPS CHECK GOOD AND #2 PZTC BITE GOOD WITH NO FAULTS FOUND REF AMM 21-61-00. GROUND VERIFICATION SUCCESSFUL.
REFERENCE LOG PAGE 60106775 RIGHT PACK LIGHT ILLUMINATED IN FLIGHT. GROUNDED - YES. REMOVED AND REPLACED RT FLOW CONTROL VALVE REF B737-900 AMM 21-51-01. REMOVED AND REINSTALLED ACM REF 21-51-04 AND MIX MUFF REF AMM 21-51-17 FOR ACCESS TO FLOW CONTROL VALVE. PERFORMED PZTC BITE REF AMM 21-61-00-700-806-002, OP CHECK GOOD. PERFORMED LEAK CHECK AT ALL DISPLACED DUCTING AND SENSE LINES, NO LEAKS NOTED. ETOPS GROUND VERIFICATION SUCCESSFUL.
ON CLIMBOUT RIGHT PACK LIGHT ILLUMINATED, STAYED ON ENTIRE FLIGHT WITH R PACK SWITCH IN OFF. GROUNDED - YES. CONFIRMED FAULT, RT PACK LT ON. R/H PACK/ZONE TEMP CONTROLLER BITE SHOWS HARD FAIL #2 TCV (V141). REMOVED & REPLACED #2 TCV REF B737-900 AMM 21-51-00. PULLED & RESET 3 TOTAL C/BS. ALSO, REMOVED ACCESS PANEL & INSPECTED BOTH PRIMARY & SECONDARY HEAT EXCHANGERS FOR DEBRIS & OBSTRUCTION REF FIM 21-53 TASK 820, NONE FOUND. RE-INSTALLED ACCESS PANEL. RAN R/H PACK WITH APU FOR 1 HOUR, WITH FLAPS EXTENDED & RETRACTED, GROUND FUNCTIONAL CHECK NML. INSPECTED GVI R/H PACK FOR ANY LEAKAGE, NONE FOUND. RE-ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE (BOTH L & R) REF AMM 21-61-00-700-806-002, OPS CK NML.
AFTER TAKEOFF RT PACK OVERHEAT AT FL250 SHUT DOWN PACK PER QRH RT PACK TEMP WAS 98 MAX. GROUNDED - YES. REVERSED CONFIG CHANGE BY UNCAPPING 1 EA CONNECTOR AND REINSTALLING, AND RETURNING PACK AIRFLOW SHUTOFF VALVE TO OPEN POSITION REF B737-900 MM 21-00-00-040-804. ACCOMPLISHED CONTINUITY CHECKS OF INLET AND EXHAUST SRADA REF B737-900 WDM 21-51-24 PG5. ALL CHECKS WERE GOOD. ACCOMPLISHED PZTC BITE REF B737-900 MM 21-61-00-700-806-002. PACK CONTROLLER NR 2 SHOWS PREVIOUS FAULT FOR INLET SRADA. FAULT CLEARED UPON VERIFICATION. AS A PRECAUTION, R & R THE INLET SRADA REF B737-900 MM 21-51-21-400-801. 5 C/B'S OPENED & CLOSED. OPS CK GOOD PER THE SAME. THIS CLEARS MEL 21-1G.
ON PUSH BACK RT PACK LT ILLUMINATED, WOULD NOT RESET WITH MASTER CAUTION OR TRIP BUTTON. GROUNDED-YES. INSPECTED RT PACK EXHAUST PLENUM FAN BYPASS CHECK VALVE, NO DEFECTS NOTED. FOUND ACM BLADES BROKEN AND SHAFT SEIZED, REPLACED THE ACM. LEAK AND OPERATIONS CHECK GOOD, REF B737-900 AMM 21-51-04/401. DUE TO ACM RAM AIR IMPELLER FAN BLADES BROKEN, PRECAUTIONARILY REPLACED THE RT PACK EXIT SRADA. OPERATION CHECK GOOD, REF AMM 21-51-27/401. A/C RELEASED FROM MEL 21-1G, CONFIG CHANGES REVERSED (RT PACK VALVE REACTIVATED, CARGO HEAT DUCT OPENED AND SWITCHES RETURNED TO NORMAL POSITIONS). REMOVED PLACARDS AND C/N 13028486. SEAMC FELIX CONTACTED.
A/P #A DISENGAGES AFTER 5 SECONDS TRIED 3 TIMES. A/P B WORKS OK. GROUNDED - YES. A/P "A" HAS CHAN-A AIL SYNC INV <4 SEC FAULT MSG 22-11189. NO FAULTS ON A/P "B". REPLACED THE "A" AILERON AUTOPILOT ACTUATOR PER B737-900 AMM 22-11-25/401. OP-CHECKS GOOD. DURING THE TESTING, FOUND THE AILERON POSITION SENSOR OUT OF RIG. ADJUSTED PER AMM 22-11-29-820-801.
ZONE TEMP CONT CAB ILLUMINATED PRIOR TO TOP OF DESCENT ON RECALL, CLEARED WHEN MASTER CAUTION PRESSED. GROUNDED-YES. PERFORMED PACK TEMP BITE PROCEDURE, PER B737-900 FIM 21-62 TASK 801 AND HAD FLT DECK TRIM VALVE FAULT. PERFORMED FIM 21-62 TASK 833 AND FAULT CLEARED.
CLIMBING THROUGH 18000' GOT MASTER CAUTION AND THE RIGHT PACK LIGHT. RAN THE CHECKLIST AND RIGHT PACK LIGHT WOULD NOT EXTINGUISH, CONTINUED FLIGHT WITH THE LEFT PACK. GROUNDED-YES. LONG HISTORY. ACCOMPLISHED LT AND RT PZTC BITE-NO FAULTS LOGGED, REF B737-900 FIM 21-62 TASK 801. RT PACK OPERATIONS IN HOT AND COLD, NO RT PACK OVERHEAT. REMOVED AND REPLACED RT PACK RAM AIR INLET ACTUATOR AS PRECAUTIONARY DUE TO HISTORY, REF AMM 21-51-21. BITE AND OPERATIONS CHECK GOOD.
RIGHT PACK LIGHT ILLUMINATED AT GATE WITH BOTH PACKS ON. GROUNDED-YES. RAN BITE CHECK AND FOUND PACK TCV FAULTED. REMOVED AND REPLACED TEMP CONTROL VALVE, REF B737-900 AMM 21-21-10. OPS CHECK GOOD. CONTINUED RUNNING PACK AND FOUND THE AIR CYCLE MACHINE TO BE "CLUNKING". REMOVED ACM, PER AMM 21-51-04 AND FOUND TURBINE BLADES TO BE HITTING ACM CASE. INSTALLED ACM, PER AMM 21-51-04. OPS CHECK GOOD, NO LEAKS NOTED. PACK LIGHTS REMAINS EXTINGUISHED.
DURING "AFTER START" PROCEDURE RT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL, EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. REPLACED TURBINE INLET OVERHEAT SWITCH, PER AMM 21-51-41 AND OPS CHECKED GOOD PER TSR 709929. CLEARS MEL 21-32B, PLACARDS REMOVED. NO CONFIG CHANGES MADE. SEAMC JOE NOTIFIED.
RIGHT PACK LIGHT ILLUMINATED ON CLIMBOUT. RAN CHECK LIST PACK LIGHT RESET, OPS NORMAL THEREAFTER. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 21-53 TASK 820 STEP 820A- F2A2, NO DEFECTS FOUND. PER FIM 21-53 TASK 820 REMOVED AND REPLACED RAM AIR EXHAUST ACTUATOR, OPS CKD GOOD, REF B737-900 AMM 21-51-27.
ON CLIMBOUT RIGHT PACK ILLUMINATED. RAN QRH AFTER COOLING DOWN PACK RESET. GROUNDED - YES. PERFORMED PZTC BITE, REF B737-900 FIM 21-62 TASK 801, NO FAULTS ON EITHER PZTC. REMOVED UNION FROM ACM TO INSPECT BLADES WITH BORESCOPE, NO DAMAGE FOUND. REINSTALLED UNION, IAW B737-900 AMM 21-51-04. PER FIM 21-52 TASK 821 AND DUE TO A/C RT PACK HISTORY, RECOMMEND HEAT EXCHANGER CLEANING, REF AMM 21-51-03-160-807. CLEANED RIGHT PACK HEAT EXCHANGER, REF AMM 21-51-03-160-807. RAN PACK FOR 20 MINUTES, OPS NORMAL. COMPLETED FIM TASK 21-52 TASK 821.
WHILE ACCOMP T/C 78472010 ON THE NR 1 ENG. FOUND SPACERS NR 12 AND 23 DISBONDED. GROUNDED - YES. REMOVED AND REPLACED THE SPACERS.
RT PACK ILLUMINATED PASSING 17000 FT, RAN CHECKLIST WOULD NOT RESET. GROUNDED - YES. FIM 21-62 TASK 831 P2TC-2 SHOWS THIS PACK TVC ON VERIFY. CIRCUIT BREAKERS RESET, NO HELP. VERIFIES POWER & GROUND AT RT TCV D3872 PINS 11-3. REMOVED AND REPLACED TEMP CONTROL VALVE IAW AMM 21-51-10. BITE WAS GOOD IAW AMM 21-61-00-700-806-002. LEAK CHECKED GOOD.
CONT CAB ZONE TEMP ON RECALL CHECK LIGHT RESET. GROUNDED - YES. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST REF AMM 21-61-00. FOUND TRIM MODULATING VALVE AT FAULT. REMOVED AND REPLACED TRIM MODULATING VALVE REF AMM 21-61-21. PERFORMED OPS CHECK AND OPS CHECK GOOD. PERFORMED BITE CHECK AND NO FAULTS FOUND.
REF TC N2480001 RIGHT STARTER MAGNET CHIP DETECTOR INSPECTION FOUND MAGNETIC PLUG HOUSING LEAKING. REMOVED AND REPLACED STARTER MAG CHIP HOUSING O-RING. LEAK CHECK GOOD. SERVICED STARTER TO FULL BEFORE OPERATION.
CONT CAB ZONE TEMP LIGHT ILLUMINATED DURING CLIMB. MASTER CAUTION RESET EXTINGUISHES THE LIGHT. GROUNDED - YES. CONFIRMED FAULT, R/H PACK/ZONE TEMP CONTROLLER SHOWS HARD FAIL FLIGHT DECK TCV (V143). REMOVED & REPLACED FLIGHT DECK TCV REF B737-900 AMM 21-61-21, LK CK & OPS CK NML REF AMM 21-61-00-700-806-002. L/H PACK/ZONE TEMP CONTROLLER SHOWS NO FAULTS. AIRCRAFT RELEASED FROM MEL 21-21G.
#2 ENGINE TREND DATA SHOWS A SUDDEN INCREASE IN LOW PRESSURE ROTOR VIBRATION LEVELS AFTER LAST SCHEDULED FAN LUBE. FAN TRIM BALANCE WAS ACCOMPLISHED ON 3-17 WITH NO RECOVERY IN VIBRATION LEVELS. GROUNDED - YES. DURING DISSASSMBLEY, FAN BLADE SPACERS DIFFICULT TO REMOVE (8 AND 22). REMOVED AND REPLACED ALL FAN BLADE SPACERS REF. TSR704973 AND TASKCARD: 78472010.
PRESSURIZATION AUTO FAIL AND GREEN ALTN LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. INITIAL EVALUATION, NEITHER AUTO OR ALTN LIGHT WERE STILL PRESENT. PERFORMED DCPC BITE IAW B737-900 FIM 21-31 TASK 801. DCPC#2 SHOWED "OFV LRU FAIL" ON FLIGHT LEG 00, BUT NOTHING IN EXISTING FAULTS. RAN PRESSURIZATION SYSTEM GROUND TEST IAW B737-900 AMM 21-31-00-700-802. BOTH DCPC SHOWED "SYSTEM OK." A/C OK FOR SERVICE.
WHILE PERFORMING #2 ENGINE HARNESS GVI (T/C # N8420001), FOUND MW326 FIRE DETECTOR DAMAGED. GROUNDED - YES. #2 ENGINE HARNESS MW326 REMOVED AND REPLACED REF B737-900 AMM 26-11-01. OPERATIONAL CHECK GOOD AND GROUND VERIFICATION SUCCESSFUL.
RIGHT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL. GROUNDED - YES. ACCOMPLISHED BITE CK & R/H PACK TCV FAULTS, REMOVED & REPLACED R/H TCV REF B737-900 AMM 21-51-10 OPS & LK CK GOOD.
RT PACK LIGHT STAYS ILLUMINATED ON RECALL RESET CLEARS LIGHT. GROUNDED - YES. BITE TEST ACCOMPLISHED IAW B737-900 FIM 21-62 TASK 801. THIS PACK- TCV MSG SEEN ON RIGHT PACK/ZONE TEMP CONTROLLER. FIM 21-62TASK 831 ACCOMPLISHED. FAULT CLEARED. NO FAULTS SEEN ON (PZTC)-2 NO FAULTS SEEN OVERHEAD WHEN SIX PACK RECALL IS PRESSED. SYSTEM NOW CONSIDERED SERVICEABLE.
LEFT SPAR VALVE CLOSED LIT ILLUMINATED WITH ENG RUNNING. GROUNDED - YES. REPLACED THE LEFT SPAR VALVE ACTUATOR REF B737-900 AMM 28-22-11. OPS CK GOOD.
CONT CAB AMBER "ZONE TEMP " LIGHT COMES ON WITH MC RECALL, LT EXTINGUISHES WITH MC RESET. GROUNDED - YES. T/S PER B737-900 FIM 21-62 TASK 801. PERFORMED TEMP CNTL BITE PASSED CONT CABIN AMBER "ZONE TEMP" LIGHT NO LONGER ILLUMINATES ON RECALL.
FOLLOW-UP TO L/H FMC FAILING INFLIGHT REPORTS. GROUNDED - YES. REMOVED AND REPLACED #1 FMC REF B737-800 AMM 34-61-02 OPS TEST NORMAL. GROUND VERIFICATION GOOD.
VTK TEMPORARILY APPEARED ON BOTH CAPT & FO DISPLAYS. SELF-CORRECTED. GROUNDED - YES. PERFORMED FMC DOES NOT OPERATE FAULT ISOLATION REF: B737-900 FIM 34-61 TASK 836. OPS NORMAL.
LEFT FMC FAILED. GROUNDED - YES. ACCOMPLISHED B737-900 FIM TASK 34-61 TASK 836 OPS CHECK NORMAL.
SATCOM LOCKUP. GROUNDED - YES. SATCOM LOCKUP PROCEDURE ACCOMPLISHED. SATCOM PROMPT RETURNED TO NORMAL OPERATIONS (SEAMT + DISPATCH NOTIFIED VIA ACARS AT 14:21Z).
CAN MAKE OUTGOING CALLS ON SATCOM. BUT INCOMING SATCOM VOICE CALLS FROM DISPATCH WERE UNSUCCESSFUL. RECEIVED NO INDICATIONS ON HF/SAT SELECT PANEL. NO CHIME, NO LIGHT SAT MENU ON MCDU ALSO SHOWED NO INDICATION OF INCOMING CALL. DISPATCH TRIED 4 TIMES. GROUNDED - YES. CDOULD NOT DUPLICATE. OPS CHECK GOOD REF B737-900 AMM 23-15-00. GROUND VERIFICATION SUCCESSFUL.
FWD CAB TEMP CONTROLLER WILL NOT HOLD SELECTED TEMP. IT WILL SPIKE HOT OR COLD. HAD TO CONTINUOUSLY MONITOR AND ADJUST. SUPPLY DUCT TEMP RANGED BETWEEN 8C - 45C. GROUNDED - YES. PERFORMED BITE CK OF BOTH CABIN TEMP CONTROLLERS WITH NO FAULTS LOGGED. ACCOMPLISHED FIM TASK 21-61 TASK 864 INITIAL EVAL. WITH TEMP INDICATIONS NORMAL.
MOMENTARY FAIL OF LEFT FMC. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 837, NO FAULTS, OPS NORMAL.
NR 2 HF SHOWING FAIL. GROUNDED - YES. VERIFIED FAULT, LRU FAILED BITE. REMOVED & REPLACED HF-2 TRANSCEIVER REF B737-900 AMM 23-11-21-400-801, INSTALLATION & GROUND VERIFICATION TEST PASSED.
L FWD WINDOW HEAT OVERHEAT LIGHT ILLUMINATED ON THE GROUND. RAN QRH PROCEDURES AND THE LIGHT REMAINED ON. GROUNDED - YES. REMOVED AND REPLACED L1 WINDOW ASSY REF B737-900 AMM 56-11-11.
WHILE ACCOMPLISHING T/C 78472010 #1 ENGINE FOUND HUB RETAINING RING FRETTING ON MATING SURFACE REQUIRES REPLACEMENT. GROUNDED - YES. RETAINING RING REMOVED AN REPLACED PER T/C 78472010.
WHILE ACCOMPLISHING T/C 78472010 #1 ENGINE FOUND 1 PLATFORM WITH SCRATCH ON AREA F REQUIRES REPLACEMENT. GROUNDED - YES. PLATFORM REMOVED AND REPLACED PER T/C 78472010.
WHILE ACCOMPLISHING T/C 78472010 #1 ENGINE FOUND 3 SPACERS WITH ELASTOMETER STRIPS DEBONDING REQUIRES REPLACEMENT. GROUNDED - YES. THREE SPACERS REMOVED AND REPLACED PER T/C # 78472010.
ON DESCENT AT RECALL THE RIGHT PACK LIGHT ON. PACK LIGHT EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED HEAT EXCHANGER CLEANING T/C 78121000. ACCOMPLISHED BITE CHECK. NO FAULTS. PACK OPERATION NORMAL. ETOPS GROUND VERIFICATION GOOD.
RIGHT PACK LIGHT ON WHEN RECALL IS PUSHED . LIGHT RESETS WHEN MASTER CAUTION IS PUSHED. GROUNDED - YES. ACCOMPLISHED BITE PER B737-900 FIM 21-62 TASK 801. BITE SHOWS "THIS PACK - TCV" ON PREVIOUS FLIGHT. GO LIGHT ILLUMINATES SHOWING INTERMITTENT FAULT. DUE TO HISTORY, REPLACED TCV PER B737-900 AMM 21-51-10. PULLED/RESET 3 C/B'S. BITE CK GOOD. LK AND OPS CK GOOD.
#1 (LEFT) MAIN FUEL TANK QUANTITY RAPIDLY DECREASED TO T-15 AFTER TAKEOFF. USING CENTER TANK FUEL. FUEL FLOWS AND FUEL USED NORMAL. GROUNDED - YES. PERFORMED BITE CHECK PER B737-900 FIM 28-41 TASK 801, NO FAULTS INDICATED CURRENTLY OR IN FLIGHT. RAN GROUND CHECK - NO FAULTS. AFTER REFUELING SAW INBAL INDICATION WENT AWAY AND FUEL LEVELS NORMAL. PERFORMED COMPARISON CHECK WITH FUEL STICKS, FOUND FUEL LEVEL CONFIRMS GAUGE READINGS.
CONT CAB ZONE TEMP ILLUMINATED AFTER RECALL, WILL RESET W/ MASTER CAUTION. GROUNDED - YES. #2 PACK ZONE TEMP CONTROLLER SHOWS FLT DECK TRIM VALVE, GREEN GO FOR VERIFY, MSG RESET NO HISTORY PAST 30 DAYS REF B737-900 FIM 21-62 TASK 848.
WHILE PERFORMING FIRE LOOP TEST FOUND NR 1 ENG 'T' HANDLE LIGHT NOT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED MW0326 ENGINE CORE LOOP B FIRE DETECTION HARNESS. AS A PRECAUTION, REMOVED AND REPLACED LOWER CORE FIRE DETECTOR ASSY. REVERSED ALT DEACTIVATIONS.
WHEN CLIMBING THROUGH FL310 TO FL 320 LEFT SIDE WINDOW OVERHEAT LT ILLUMINATED. TURNED WINDOW HEAT FOR L SIDE WINDOW OFF FOR 5 MINUTES IAW QRH, THEN TURNED SWITCH BACK ON. WINDOW OVERHEAT LIGHT REMAINED EXTINGUISHED. GROUNDED - YES. COMPLIED WITH FIM TASK 30-41 TASK 813 AND 801. NO FAULT FOUND. SEAMC DAN NOTIFIED.
AFTER STARTING ENGINES, RIGHT PACK LIGHT CAME ON DURING RECALL. PACK LIGHT EXTINGUISHES DURING MASTER CAUTION RESET. GROUNDED - YES. RELEASED PER MEL #21-32B. RIGHT HAND PACK PRIMARY TEMPERATURE CONTROL INOP. RT TEMP CONTROLLER BITE DONE REF AMM 21-61-00-700-806-002: NO FAULTS ON VERIFY. PREVIOUS FLIGHT SHOWS TCV FAULT. NO HISTORY PAST 30 DAYS. THIS CLEARS MEL 21-32B.
DURING CRUISE LEFT FMC FAIL. VTK & MAP ILLUMINATED THEN FMC RESET ITSELF AND CONTINUED NORMAL OPERATIONS. GROUNDED - YES. ACCOMPLISHED FIM TASK 34-61-TASK 807 AND BITE PER FIM TASK 34-61-TASK 801. NO FAULTS FOUND.
HF 1 TOO QUIET TO UNDERSTAND SFO. NO STATIC HEARD. HF 2 OPS NORMAL. GROUNDED - YES. REMOVED AND REPLACED HF 1 TRANSCEIVER IAW AMM 23-11-21-000-801 AND 23-11-21-400-801, OPS CHECK GOOD. THE AUDIO WAS NOTICEABLY LOWER WITH HF1, HAD SENSITIVITY FOR NR 1 AND 2 SET THE SAME. AFTER LRU CHANGE BOTH SYSTEM AUDIO'S WERE THE SAME.
HF #2 SHOWS "FAIL" ON BOTH RADIO CONTROL HEADS. GROUNDED - YES. RESET #2 HF C/B AND CLEARED "FAIL" MESSAGE ON BOTH RADIO CONTROL HEADS. OPS CHECKS OK.
AT FL 340, 3.5 HRS INTO FLIGHT. F/O ND DISPLAYED VTK. LNAV AND VNAV DISENGAGED TO CWS R. AFTER APPROX 30 SEC NORMAL OPERATIONS RESUMED. NO FURTHER PROBLEMS. GROUNDED - YES. RESET F/O FMC IAW B737-900 FIM 34-61 TASK 836. GROUND VERIFICATION CHECK OK.
AT TOP-OF-DESCENT RECALL CHECK CONT CAB ZONE TEMP LIGHT ILLUMINATED. THE LIGHT EXTINGUISH UPON MASTER CAUTION PUSH -TO-RESET. GROUNDED - YES. ACCOMPLISHED PACK/ ZONE TEMP CONTROLLER BITE TEST REF B737-900 AMM 21-51-00, #2 CONTROLLER SHOWS FLIGHT DECK TRIM VALVE ON BIT AND PREVIOUS FLIGHT. ACCOMPLISHED FIM 21-62 TASK 832 CONTROL CABIN TRIM AIR VALVE FAULT ISOLATION, VERIFY TEST ON #2 CONTROLLER, SHOWS GO. GROUND VERIFICATION SHOWS GOOD.
OVERHEAD EXIT SIGN FELL DOWN AT ROW 17. GROUNDED - YES. REINSTALLED SIGN, OK FOR SERVICE.
APU SURGES WITH A PNEUMATIC LOAD APPLIED. NO SURGE WITH BLEED AIR SWITCH ON, BEGINS SURGING WITH LEFT OR RIGHT PACKS TURNED ON. GROUNDED - YES. ACCOMPLISHED FIM 49-55 TASK 808, STEPS A-E, F (1)-(2). NO FAULTS FOUND AT THIS TIME. REMOVED AND REPLACED APU ECU. OPS CHECK GOOD. REF AMM 49-61-12. ACCOMPLISHED STEP 2 APU OPS CHECK WITH PACKS ON & NO SURGING NOTED.
WHEN HF1 IS SELECTED ON MIC SELECTOR PANEL, "FAIL" IS INDICATED IN BOTH ACTIVE AND STANDBY WINDOWS. GROUNDED - YES. ACCOMPLISHED HF COMMUNICATION SYSTEM TEST B737-900 AMM TASK 23-11-00-730-801. OPS CK GOOD.
FOUND CORE FIRE DETECTION HARNESS SHIELDING FRAYED AND GROUND STRAP BROKEN. GROUNDED - YES. REMOVED AND REPLACED HARNESS MW0325 REF AMM 26-11-02-400-802. ENGINE FIRE DETECTION OPS CHECK GOOD REF AMM 26-11-00-710-801.
FOUND BRAIDING ON CORE FIRE DETECTION HARNESS, MW0326, TORN. GROUNDED - YES. ACCOMPLISHED TEMPORARY REPAIR REF AMM 70-70-01-350-801-F00. REPAIR IS TEMPORARY UNTIL THE NEXT ENGINE SHOP VISIT. A/C RELEASED ON A PLT DEFERRAL.
LT FMC FAILURE ON GROUND AFTER SHUTDOWN. GROUNDED - YES. REMOVED AND REPLACED LEFT FMC REF AMM 34-61-02. OPS CHECK GOOD ON GROUND POWER AND APU GENERATOR REF AMM 34-61-00.
EMERGENCY EXIT LIGHT FELL OFF. GROUNDED - YES. RESECURED LIGHT LENS.
PLASTIC EXIT/SALIDA SIGN FELL OFF. GROUNDED - YES. REINSTALLED EXIT/SALIDA COVER AT ROW 16 RT OK FOR SVC.
FMC DISAGREE MESSAGE ILLUMINATED ON THE GROUND. THE ACFT WAS GROUNDED. QRH PROCEDURE FOLLOWED, OPS RESTORED SUCCESSFULLY.
AUTOLAND NOT SUCCESSFUL, AIRCRAFT LANDED 50FT LEFT OF CENTERLINE. ACFT GROUNDED. ACCOMPLISHED FIM 22-11 TASK 825. PERFORMED LAND VERIFY TEST IAW AMM 22-11-00. ALL TESTS PASSED. NO FAULTS FOUND. ACCOMPLISHED AUTOPILOT CURRENT STATUS IAW AMM 22-11-00-740-801. NO FAULTS FOUND. ACCOMPLISHED BITE LIBRARY TEST IAW AMM 22-11-00-740-806. ALL LIBRARY TESTS, CHANNELS A & B. FLIGHT CONTROL COMPUTER INSTALLATION, IAW AMM 22-11-33-400-801 / 22-11-33-740-001. LRU REPLACEMENT TEST FOR FCC. ALL TESTS PASSED. ACCOMPLISHED DIGITAL FLIGHT CONTROL SYSTEM (DFCS) BITE PROCEDURE, 22-11 / 801, BITE GRP 20, FAULT REVIEW. DIGITAL FLIGHT CONTROL SYSTEM, MAINTENANCE PRACTICES, AMM 22-11-00 / 201, BITE GRP 49, LAND VERIFY TEST. ALL TESTS PASSED.
DURING PREFLIGHT THE FIRST OFFICERS FD FLIGHT DIRECTOR OFF FLAG REMAINED ILLUMINATED. ACFT GROUNDED. PERFORMED FIM 22-15/816, CYCLED ACFT POWER, FAULT DID NOT REOCCUR. FOUND TO BE AN INTERMITTENT FAULT. NO FAULT MESSAGE AFTER DFCS BITE.
FWD R WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. T/S FOUND WINDOW HEAT PRIMARY SENSOR FAILED. PLACED SENSOR SWITCH IN SECONDARY/SPARE POSITION REF AMM 30-41-00. OPS NORMAL.
CABIN ZONE TEMP LIGHT ILLUMINATED ON RECALL. RESET. ACFT GROUNDED. FAULT CODE 216-211-00. INITIAL EVALUATION FOUND THE NR 2 TEMP CONTROLLER SHOWING FLT DECK TRIM VALVE FAULT. PERFORMED FIM 21-62 TASK 842. NOTED ON RESETTING THE NR 2 TEMP CONTROLLER, RAN FIM 21-62 TASK 801 TO RESET AND VERIFY THE NR 2 TEMP CONTROLLER. RAN THE LT PACK, OPERATED THE TEMP CONTROLLER FOR FLT DECK FOR 10 MINS, NO ZONE TEMP LIGHTS.
TEMP INDICATION SELECTOR ON TEMP CONTROL MODULE IS LOOSE. GROUNDED - YES. UNABLE TO SECURE SWITCH. REMOVED AND REPLACED TEMP CONTROL MODULE REF B737-900 AMM 21-61-15, OPS CHECK NORMAL.
FWD CAB TEMP CONTROL VERY IRREGULAR AND ERRATIC. WHEN PLACED AT THE 8-9 OCLOCK POSITION TEMP GOES FROM VERY HOT TO VERY COLD. IN ALL PHASES OF FLIGHT. TRIM AIR ON. ALL OTHER TEMP SELECTORS OPS NORMAL. GROUNDED - YES. FOUND FWD PASSENGER CAB TEMP CONTROL SENSOR GRILL TAPED WITH BLUE MASKING TAPE. VERIFIED NO AIRFLOW TO TEMP SENSOR. REMOVED TAPE FROM GRILL. REPLACED TEMP SENSOR FILTER PRECAUTIONARY REF B737-900 AMM 21-62-06. GROUND VERIFICATION TEST PASSED REF AMM 21-60-00.
WEATHER RADAR FAILED. ACFT GROUNDED. PERFORMED A WEATHER RADAR SYS BITE IAW FIM 34-43, TASK 801. ANTENNA FAULT DISPLAYED. REMOVED AND REPLACED THE WEATHER RADAR ANTENNA DRIVE UNIT IAW AMM 34-43-11. WEATHER RADAR SYSTEM OPS TESTED GOOD IAW AMM 34-43-00.
HF 2 SHOWS FAIL. GROUNDED - YES. RELEASED PER MEL 23-11A HF 2 INOP. ACCOMPLISHED FIM 23-11 TASK 801. NO FAULTS. CLEARED MEL 23-11A.
AFTER PUSH BACK, AND ENG START, BOTH PACK LIGHTS ILLUMINATED DURING RECALL, WENT OUT WITH MASTER CAUTION RESET. ACFT GROUNDED. BOTH AUTO TEMP CONTROLLERS LOGGED RAM AIR SENSOR INLET/EXIT FAULT, ACCOMPLISHED AUTO PACK TEMP CONTROLLER BITE PROCEDURES IAW FIM 21-62-00-810-801, AND FAULT RESET, NO EXISTING FAULT. ALL OPS CHECKED GOOD, NO HISTORY 30 DAYS.
FIRST OFFICER`S FMC, CDU BLANKED OUT & CAME BACK TO NORMAL OPERATION AFTER APPROXIMATELY 1 MINUTE. ACFT GROUNDED. ACCOMPLISHED FIM 34-61-804, CDU PASSED TEST. GROUND VERIFICATION SUCCESSFUL.
NR 1 ENGINE FUEL LEAK. GROUNDED - YES. RAN NR 1 ENGINE, FOUND FUEL LEAKING FROM FUEL PUMP PAD DRAIN AND TO BE OUT OF LIMITS IAW AMM 71-71-00-200-801-F00 FIG 605 LEAK LIMIT TABLE. REMOVED AND REPLACED NR 1 ENGINE FUEL PUMP, REF AMM 73-11-11. OPS & LEAK CHECKED GOOD. GROUND VERIFICATION CHECKS GOOD. NO LEAKS NOTED.
EEC FAULT CODE MESSAGE 76-31361 SHOWS THE NR 1 ENGINE START LEVER SIGNALS DISAGREE, CHANNELS A & B. LONG TIME FAULT, 450 FLT HRS. ACFT GROUNDED. ACCOMPLISHED T/C 78273000 FOR THE NR 1 & 2 ENGINES. NO FAULTS.
LOSS OF LEFT FMC WITH VTK FLAG DISPLAYED AT FL340. BOTH FMCS RECEIVED WITH QRH PROCEDURE. NORMAL OPS. ACFT GROUNDED. NR 1 CDS LOGGED FMC DATA LOSS, NO HISTORY TEN LEGS. SYS TESTED GOOD IAW AMM 34-61-00-710-801.
NR 2 ENGINE TREND DATA SHOWS A SUDDEN INCREASE IN LOW PRESSURE ROTOR VIBRATION LEVELS. DATA SCATTER INDICATES HARDWARE INSPECTION AND FAN RELUBE REQUIRED. ---PRIORITY TWO--- ENGINE RUN REQUIRED ETOPS SIGNIFICANT SYSTEM. GROUNDED - YES. FOUND 5 EACH RUBBER STOP ELASTOMERS ON REAR CONE RING DAMAGED. ALL 24 EACH SHIMS MISSING ABOUT 90% MOLY COATING. FOUND QUANTITY OF MOLY LUBE A BIT HEAVY, DRY & FLAKEY. REPLACED 5 EACH RUBBER STOP ELASTOMERS ON REAR CONE SPINNER AND REMOVED AND REPLACED ALL 24 SHIMS ON # 2 ENG REF T/C 78472002. ACCOMPLISHED FAN BLADE LUBE ON 32 ENG IAW TC 78472002.
R2 WINDOW OVERHEAT. QRH ACCOMPLISHED. ACFT GROUNDED. NEW R2 WINDOW IS MARKED H13 & ITS RESISTANCE IDENTIFIES IT AS AN H14 OLD WINDOW IS MARKED H15. MOVED THE TAP FROM NR 2 TO NR 3 IAW WDM 30-41-11. REMOVED THE R2 WINDOW IAW AMM 56-12-11, VERIFIED NEW R2 WINDOW FWD & AFT CLEARANCES TOP & BOTTOM CLEARANCES, FLUSHNESS OF WINDOW ASSEMBLY AND OPEN AND CLOSE FORCE IAW AMM 56-12-11. FINISHED INSTALLATION OF R2 WINDOW & ACCOMPLISHED LEAK CHECK & OPERATIONAL HEAT TEST BOTH CHECKED GOOD IAW AMM 56-12-11-400-801 & AMM30-41-00-710-801.
R2 WINDOW OVERHEAT AT FL 350, RESET IAW QRH. R2 WINDOW OVERHEAT REOCCURRED. ACFT GROUNDED. REMOVED & REPLACED RIGHT SIDE WHCU. OPS CHECKED NORMAL IAW AMM 30-41-11-000-801, & 30-41-11-400-801.
ON DESCENT THE RIGHT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED. FOLLOWED THE QRH WAITED 3 MIN TURNED THE WINDOW HEAT SWITCH BACK ON AND THE OVERHEAT LIGHT ILLUMINATED AGAIN. GROUNDED - YES. PERFORMED FIM TASK 30-41 TASK 801, RESET FAULT ON WHCU RAN WINDOW HEAT FOR 30 MIN NO FAULTS NOTED
FA REPORTED AN EMERGENCY EXIT SIGN LENS MISSING FROM WALL NEAREST AFT LEFT LAVATORY. ACFT GROUNDED. INSTALLED THE LENS.
HF1 NOTHING BUT STATIC. UNABLE TO HEAR OR TRANSMIT. HF1 NEGATIVE SELCAL. HF2 WORKS, TRANSMITS, RECEIVES, AND SELCAL WORKS. GROUNDED - YES. USING MICROPHONE AND HEADSET FROM HF1 RT KEY INTERLOCK LIGHT IS ON WHEN MIC IS KEYED. REPLACED HF 1 COUPLER. BAD FROM STOCK. REPLACED WITH NEW COUPLER. INSTALLATION TEST PASSES, REF AMM 23-11-61/401.
RIGHT SIDE WINDOW OVERHEAT ILLUMINATED AT CRUISE. QRH FOLLOWED AND LIGHT EXTINGUISHED. ACFT GROUNDED. TROUBLESHOT IAW FIM 30-41 TASK 811. FOUND WINDOW SENSOR FAILED ON LAST 7 LEGS ON WHCU. DUE TO HISTORY, SWAPPED FROM PRIMARY SENSOR TO SPARE SENSOR, RESISTANCE CHECKED GOOD IAW AMM 30-41-21-760-801.
AUTO FAIL AIR CONDITIONING LIGHT. ACFT GROUNDED. FOUND CIRCUIT BREAKER P6-4, AND F5, OPEN FOR THE NR 2 CABIN PRESSURE CONTROLLER. RESET IAW SWPM 20-00-10. BITE TEST OF THE NR 2 DIGITAL CABIN PRESSURE CONTROLLER, OPS NORMAL. SYSTEM OK AND GROUND TEST PASSED IAW FIM 21-31 TASK 801.
DURING CRUISE, RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. RAN QRH AND LIGHT REMAINED EXTINGUISHED. ACFT GROUNDED. ACCOMPLISHED BITE CHECK ON RIGHT SIDE WINDOW CONTROLLER. NO CURRENT FAULTS. FAULT HISTORY SHOWS ONE FAULT - WINDOW SENSOR.
RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED DURING FLIGHT. FOLLOWED QRH PROCEDURE AND LIGHT RE-ILLUMINATED. GROUNDED - YES. ACCOMPLISHED WHCU TEST, REF B737-900 AMM 30-41-11. NO FAULTS FOUND, OPS CHECK NORMAL.
RIGHT PACK LIGHT ILLUMINATED DURING CLIMBOUT OF 16,000FT. RAN PACK LIGHT CHECKLIST. PUSHED TRIP RESET SWITCH, BOTH PACK LIGHTS EXTINGUISHED. CONTINUED NORMAL OPS. ACFT GROUNDED. OPERATED RIGHT PACK, NO PACK LIGHT ILLUMINATES. ACCOMPLISHED GVI OF RIGHT RAM AIR DOOR, NO DEFECTS NOTED. ACCOMPLISHED BITE CHECK OF BOTH ZONE TEMP CONTROLLERS, NO FAULTS FOUND IAW FIM 21-53 TASK 806 AND AMM 21-61-00.
RIGHT PACK TRIP LIGHT, RESET & WENT OUT FOR 30 SECONDS, AND THEN BACK ON. ACFT GROUNDED. OPERATED THE RIGHT AIR CONDITIONING PACK FOR 30 MINUTES, IAW AMM 21-00-00-800-803. PERFORMED PACK/ZONE TEMP CONTROLLERS BITE TESTS - NO FAULTS NOTED, IAW FIM TASK 21-53 #818. NO RIGHT PACK LIGHT COMES ON DURING GROUND OPERATIONAL TESTS.
NR 1 ENGINE ALL FAN BLADE SHIMS WORN IAW T/C 78472002. ACFT GROUNDED. REMOVED AND REPLACED THE SHIMS IAW T/C 78472002.
VTK ON FO MAP DISPLAY FOR 10 SECONDS THEN BACK TO NORMAL ON ITS OWN. GROUNDED - YES. FFR SHOWED NO FAULTS. SYS OPS NML. NO HISTORY 90 DAYS. SUSPECT NUISANCE ERROR. REF AMM 34-61-00-860-801.
COCKPIT P5-13 PANEL ELEC LIGHT ILLUMINATED. GROUNDED - YES. FOUND 'STAT INV INOP' FAULT LOGGED, (GATE PWR HAD DROPPED OFF DRAINING BATTERIES). CYCLED POWER & ACCOMPLISHED FIM 24-31 801, FAULT CLEARED AND CHECKS NORMAL. RECHARGED BATTERIES, SYSTEM CHECKS GOOD, REF AMM 24-31-11.
NR 1 ENGINE FAN BLADE SHIMS WORN. ACFT GROUNDED. REMOVED AND REPLACED NR 1 ENGINE FAN BLADE SHIMS IAW TASK CARD 78472002 .
NR 1 ENGINE FUEL FILTER BYPASS ILLUM AT LEVEL OFF 34,000. REMAINED ON UNTIL SHUTDOWN (3 PLUS HOURS). GROUNDED - YES. REPLACED NR 1 ENGINE FUEL FILTER. REF AMM 73-11-02. ACCOMPLISHED IDLE POWER LEAK CHECK. REF AMM 71-00-00-700-801-F00. PASSES ALL TESTS.
ON RECALL FLIGHT DECK ZONE TEMP LIGHT ILLUMINATED. LIGHT EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED AMM TASK 21-61-00-700-806-002 PACK/ZONE TEMPERATURE CONTROLLER BITE TEST. NR 2 CONTROLLER SHOWS FLIGHT DECK ZONE TEMP LIGHT. ACCOMPLISHED CABIN TEMPERATURE SENSOR ASSEMBLY FILTER CLEANING PER AMM TASK 21-61-06-100-801. OPS TEST NORMAL.
FOLLOW-UP TO SPIKE IN NR 1 IDG SERVICING. ACFT GROUNDED. PERFORMED VISUAL INSPECTION OF IDG OIL LINES AND DRAIN LINE AFTER ENGINE SHUTDOWN AND COWL OPEN. OIL DRIPPING FROM DRAIN LINE IAW AMM TASK 24-11-00-700-801 AND AMM 71-11-02-010-801-F00. REMOVED IDG FROM ENGINE NR 1. NO CONTAMINATION NOTED IN FILTERS IAW AMM TASK 24-11-11-080-801 AND AMM 24-11-11-000-801. INSTALLED THE NR 1 IDG IAW AMM TASK 24-11-11-400-801. OPS AND LEAK CHECKED GOOD.
AFTER ENGINE START UPON RECALL, AIR COND MASTER CAUTION ILLUMINATED ASSOCIATED WITH THE LEFT PACK OVERHEAD. ACFT GROUNDED. REMOVED THE LT TEMP CONTROL VALVE FOR PACK AFTER ACCOMPLISHING BITE CHECK AND GOT FAULT CODE THIS PACK-TCV IAW AMM 21-51-10-000-801. INSTALLED NEW LT TEMP CONTROL VALVE IAW AMM 21-51-10-400-801.
MCDU'S NOT SHOWING CLIMB, CRUISE, AND DESCENT DATA. ACFT GROUNDED. FOUND TOTAL AIR TEMP PROBE HEAT WAS ON. TURNED OFF THE HEATER SWITCH TO INTER FMC DATA. BOTH FMC COMPUTERS TESTED IAW AMM TASK 34-61-00, ALL OPS CHECKED GOOD, NO EXISTING FAULT.
AFTER ENGINE STARTS WITH ANNUNCIATOR CHECK NOTICED OVERHEAD ELEC LIGHT ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED SPCU FAULT LIGHT FAULT. SPCU FAULT LIGHT RESET. SYSTEM OPS CHECK GOOD. IAW FIM 24-34 TASK 802.
DURING SHUTDOWN, MCP WENT DARK. ACFT GROUNDED. CYCLED MCP-1AND 2 CIRCUIT BREAKER AND MCP DISPLAY CAME BACK TO LIFE. ACCOMPLISHED MCP REPLACEMENT TEST IAW AMM 22-11-34 AND MCP TEST OPS CHECKED GOOD. DFCS LRU INTERFACE TEST GROUP 32 OPS CK GOOD IAW AMM 22-11- 34. LAND VERIFY GROUP TEST 49 OPS CHECKED GOOD IAW AMM 22-11-00. HGS SENSOR TEST FOR FCC/AT OPS CK GOOD IAW AMM 34-36-00.
FUEL IN CENTER TANK INDICATED .30 ON THE GROUND PRIOR TO FLIGHT BUT SHOWED 1.38 @ TOP OF CLIMB. CENTER PUMPS WERE TURNED ON AND TANK WAS BURNED DOWN TO 0.00 WHEN LOW PRESS LIGHTS ILLUMINATED. GROUNDED - YES. PERFORMED FQIS BITE PROCEDURE, REF B737-900 FIM 28-41 TASK 801, CURRENT STATUS SHOWS "NO PRESENT FAULTS", GROUND TEST SHOWS "PASS". PERFORMED SYSTEM TEST- FUEL QUANTITY INDICATING SYSTEM, REF B737-900 AMM 28-41-00, NO FAULT FOUND.
CREW REPORTED, WITH PITOT HEAT "B" IN AUTO POSITION, PITOT HEAT "B" LIGHTS ARE EXTINGUISHED. ACFT GROUNDED. WINDOW & PITOT HEAT MODULE REMOVED. INSTALLED A NEW HEAT MODULE IAW AMM 30-41-41-400-801. VERIFICATION PERFORMED IAW AMM 30-31-00-730-801.
PRESSURIZATION CONTROL PANEL BACK LIGHT WILL NOT DIM. ACFT GROUNDED. REMOVED AND REPLACED CABIN PRESSURE CONTROL MODULE. OPS TESTED GOOD IAW AMM 21-31-02.
LEFT PACK LIGHT ILLUMINATED ON RECALL, WENT OUT WITH MASTER CAUTION RESET. ACFT GROUNDED. NR 1 ZONE TEMP CONTROLLER LOGGED, TCV THIS PACK, FAULT CLEARED AND TESTS NORMAL IAW AMM 21-61-00, GROUND VERIFICATION SUCCESSFUL.
APU MAINTENANCE LIGHT ILLUMINATED. ACFT GROUNDED. FOUND MAINTENANCE LIGHT FOR LOG ON, ON APU ID CONFIGURATION, PAGE 2. PERFORMED LOW OIL QUANTITY BITE DEACTIVATION REF AMM 49-61-00-040-801. REQUIRES DMM TO BE R & R DUE TO NR OF FAILURES LOGGED AS MAINTENANCE MESSAGE 49-72104. R & R APU MEMORY MODULE REF AMM 49-72-11. OPS AND BITE CHECKED GOOD. CLEARED MEL 49-1B.
HF 2 SHOWS FAIL INDICATION WHEN SELECTED ON COMM PANEL. ACFT GROUNDED. ACCOMPLISHED FIM 23-11, TASK 801, HF 2 TEST NORMAL AND GOOD GROUND VERIFICATION TEST.
LEFT FMC FAILED ABOUT 2.5 HOURS INTO FLIGHT, NO FMC LT POSITION DISPLAYED. ACFT GROUNDED. ACCOMPLISHED FIM TASK 34-61, 836, SYS RESTORED AND CKS NORMAL. GROUND VERIFICATION SUCCESSFUL.
DURING TAXI OUT NR 2 GENERATOR DRIVE LIGHT AND MASTER CAUTION ILLUMINATED. RETURNED TO GATE. ACFT GROUNDED. TROUBLESHOOT FOUND IDG FAULT LIGHT ON GCU NR 2. PERFORMED FIM 24-21 TASK 806, R & R NR 2 ENGINE IDG REF AMM 24-11-11, OPS & LEAK CHECKED GOOD.
JUST PRIOR TO TAKEOFF, RT GENERATOR DRIVE LIGHT ILLUMINATED, REF QRH, DISCONNECTED RT GENERATOR. ACFT GROUNDED. PERFORMED GCU BITE PROCEDURE, REF FIM 24-21, TASK 801. FOUND GCU NR 2 IDG FAULT. ACCOMPLISHED INITIAL EVALUATION FOR IDG FAULT, GCU 2, REF FIM 24-21, TASK 806. IDG OPERATES NORMALLY UNDER FULL LOAD. NO MAINTENANCE MESSAGES NOTED.
AT CRUISE FLIGHT, FMC SINGLE OPERATION, SHOWN ON BOTH FMC'S. REFERED TO QRH FOR FMC FAIL. RT FMC UNABLE TO RESTORE TO NORMAL. RT FMC INOPERATIVE. FMC SOURCE SELECT SWITCH BOTH ON "L" POSITION. ACFT GROUNDED. ACCOMPLISHED RT FMC BITE REF FIM 34-61, TASK 801. NO CURRENT FAULTS. FOUND ON RT FMC. PERFORMED RT FMC OPS TEST REF AMM 34-61-00. SYS CKS NORMAL.
FMC DISAGREE ON GROUND. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. FMC RESTORED NORMAL.
LEFT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL, BUT GOES OUT ON RESET. ACFT GROUNDED. PERFORMED LT PACK/ZONE TEMPERATURE CONTROLLER BITE TEST REF AMM 21-61-00. BITE CK GOOD.
FMC DISAGREE ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. FMC DISAGREE EXTINGUISHED.
CRUISE FLIGHT, VTK APPEARED ON NAV DISPLAY MENU PAGE NO, FMC THEN EVERYTHING BACK TO NORMAL OPS. ACFT GROUNDED. ACCOMPLISHED FIM 34-61, TASK 836. NO FAULTS FOUND, OPS CHECK NORMAL.
DURING MASTER CAUTION CHECK CONTROLLER CAB ZONE TEMP LIGHT ILLUMINATED. EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED FIM 21-61, TASK 861, CONTROL CABIN AUTO TEMPERATURE CONTROL DOES NOT OPERATE FAULT ISOLATION. NO CURRENT FAULTS, GROUND VERIFICATION TESTS GOOD.
NR 2 IDG DRIVE LIGHT ILLUMINATED IN FLIGHT. ACFT GROUNDED.
LEFT PACK LIGHT ON RECALL-MASTER CAUTION RESET. ACFT GROUNDED. FOUND LT RAM AIR INLET DOOR NOT CYCLING DURING BITE. REF MM 21-01-00. R & R LT SIDE RAM DOOR ACTUATOR REF MM 21-51-21-400-801. C/B ON P6-4 A4 AND A8 OPEN AND TAG FOR MAINTENANCE PERFORMED PACK/NONE TEMP CONTROLLER BITE. FUNCTION NORMAL REF 21-61-0-700-806-002, RAN BOTH PACK NORMAL.
TEMP CONTROL IN ALL 3 ZONES "HYPER-SENSITIVE", LARGER THAN USUAL SUPPLY DUCT TEMP CHANGES WITH SMALL ADJUSTMENTS. CONDITION MOST PRONOUNCED AFTER ENGINE START & TAKE OFF, THEN IMPROVED ENROUTE. WHEN TEMP SELECTORS OFF: ON GROUND SUPPLY DUST TEMP IN ALL 3 ZONES INDICATES 38-40C IN FLIGHT, CONTROL CAB INDICATES 38-40C, FWD & AFT CAB INDICATOR NORMAL 20-22C. ACFT GROUNDED. REF AMM 21-62, TASK 801 BITE CK SYS. NO FAULTS FOUND. CYCLED PACKS HOT/COLD. OPS NORMAL. NO 30DAY HISTORY. OK FOR SERVICE.
LEFT FMC FAILED DURING FLIGHT. UNABLE TO RESTORE DUAL FMC OPS USING QRH PROCEDURES. ACFT GROUNDED. ACCOMPLISHED, LT FMC OPS TEST. CONFIRMED LT FMC FAILED. R & R THE LT FMC IAW AMM 34-61-02. OPS TESTED NORMAL.
R1 DOOR MISSING "EMERGENCY EXIT" PLACARD. ACFT GROUNDED. INSTALLED R1 "EMERGENCY EXIT" PLACARD REF EMM SECTION "2".
NR 1 FMC FAILED (VTK) FOR 15-20 SECONDS THEN RETURNED FULL FUNCTION, FOR DURATION OF FLIGHT. NO ACTION TAKEN. ACFT GROUNDED. PERFORMED FIM TASK 34-61, TASK 807 NR 1 FMC GROUND VERIFICATION, OPS CK NORMAL.