N453AS
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
FA REPORTS L1 DOOR IS VERY STIFF TO OPEN & HAS A SQUEAK. GROUNDED - YES. LUBRICATED HINGE POINTS. TRACKS FOR L1 DOOR. OPERABILITY HAS VERY MUCH IMPROVED AND SQUEAK HAS DIMINISHED & IMPROVING WITH OPERATION OF DOOR. REF AMM 12-25-11.
FA REPORTS L1 DOOR HANGS UP AND MAKES A GROANING NOISE DURING OPENING AND CLOSING. GROUNDED - YES. INSPECTED DOOR, SOUND APPEARS TO BE ORIGINATING FROM TOP HINGE, NO OTHER DEFECTS NOTED. LUBRICATED UPPER HINGE, ROLLERS AND TRACKS, NOISE MINIMIZED, ONLY NOTABLE ON CLOSURE FROM THE INSIDE INTERMITTENTLY.DOOR OPERATION NORMAL, OK FOR SERVICE.REF AMM 52-11-00 FOR OPS CHECK INSPECTION REF AMM 12-25-11.
FA REPORTS L1 DOOR HANDLE STIFF TO OPEN. GROUNDED - YES. PERFORMED OPERATIONAL CHECK OF L1 DOOR REF AMM 52-11-00 OPERATIONAL CHECK NORMAL . NO DEFECTS NOTED AT THIS TIME.
FA REPORTED THAT L1 DOOR WAS EXTREMELY HARD TO OPEN AND CLOSE. GROUNDED - YES. L1 DOOR CLOSURE AND OPENING ARTICULATION MID-SEQUENCE STIFFENS/ DRAGS HARD DOOR CLOSING AND LATCHING WITHIN LIMITS REF AMM 52-11-00-00-804. PERFORMED FORWARD ENTRY DOOR CHECK REF AMM 52-11-00-200-801 STEPS 2. F. 1,4 & 6. NO DEFECTS NOTED. PERFORMED FORWARD ENTRY DOOR LUBRICATION (SERVICING-COMPONENTS) REF AMM 12-25-11-640-801 STEPS 2.F. (1-3) ITEMS 2-8. DOOR CLOSES MUCH EASIER, WITH SIGNIFICANTLY LESS EFFORT IN THE MID-TRAVEL PORTION OF DOOR OPENING AND CLOSING.
L1 DOOR HANDLE IS REPORTED HARD TO MOVE. GROUNDED - YES. VERIFIED FORCE ON L1 DOOR INNER HANDLE REQUIRED TO OPEN AND CLOSE DOOR TO BE WITHIN LIMITS REF. MM. 52-11-00.
EXIT SIGN HANGING FROM CEILING. GROUNDED - YES. EXIT SIGN WAS MID CABIC CENTER AISLE CEILING. RESECURED SIGN - SIGN OPS CHECK GOOD. NO OTHER DEFECTS NOTED.
CABIN FLOOR PANEL 141A5810-155 HAS PEELING FIBERS & DAMAGED INSERTS. GROUNDED - YES. REPAIRED CABIN FLOOR PANEL 141A5810-155 BY PREFORMING A PERMANENT WET LAY UP REPAIR IAW B737-900ER SRM 53-00-50-2R-0.
CABIN FLOOR PANEL 141A5810-236 HAS PEELING FIBERS & DAMAGED INSERTS. GROUNDED - YES. REPAIRED CABIN FLOOR PANEL 141A5810-236 BY PREFORMING A PERMANENT WET LAY UP REPAIR IAW B737-900ER SRM 53-00-50-2R-0.
CABIN FLOOR PANEL 141A5810-763 HAS PEELING FIBERS & DAMAGED INSERTS. GROUNDED - YES. REPAIRED CABIN FLOOR PANEL 141A5810-763 BY PERFORMING A PERMANENT WET LAY UP REPAIR IAW B737-900ER SRM 53-00-50-2R-0.
IN FWD GALLEY FLOOR STRUCTURE HAS AN AREA OF CORROSION IN FLOOR PANEL SCREW HOLE, JUST AFT OF STA 294.5 & LBL 10 INCHES. MARKED IN RED. GROUNDED - YES. DISPLACED CABLES MLGEA-L AND EA-L AND EB-L IAW B737-900 AMM 20-10-91. RECONNECTED AND ADJUSTED CABLE MLGEA-L IAW B737-900 AMM 32-34-00. RE-CONNECTED AND ADJUSTED CABLES EA-L AND EB-L IAW B737-900 AMM 27-31-00-820-801. REMOVED CORROSION - ORIGINAL THICKNESS .080, REMAINING .064, REMOVED .016 AND FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-10-51-1A-1. REMOVED AND REPLACED INTERCOSTAL P/N 141A5690U1 PO#1120648.2 IAW B737-900ER SRM 51-40-02 REF BAC DWG 141A5600 REV N.
CORROSION ON THE LOWER PORTION OF THE FORWARD CARGO DOOR CUTOUT. GROUNDED - YES. EVALUATED FWD PIT DOOR WEB THRESHOLD AND FOUND TO BE 100% MAT LOSS AND FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-30-15-1A-1. RECEIVED NEW WEB THRESHOLD PN#143A8122-10 PO: 1120482.1 IAW BOEING DWG: 143A8330 REV:-. REMOVED AND INSTALLED IAW B737-900 SRM 51-40-02.
FWD WET AREA STA 312 TO STA 328 LBL 45 HAS A CRACKED INTERCOSTAL. GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL IAW B737-900 SRM 51-40-02 AND BAC DWG 141A5400.
FWD WET AREA INTERCOSTAL AT STA 278 TO STA 294.5 BL 0 HAS GOUGE ON LOWER SURFACE OF UPPER FLANGE. GROUNDED - YES. BLENDED AND CHECKED LIMITS @ INTERCOSTAL AREA ORI MAT .040, MAT. LOSS .021,REMAINING MAT .019 FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-10-51-1A-1. REMOVED AND REPLACED INTERCOSTAL @ STA 270 TO STA 294.5 IAW B737-900SRM 51-40-02, BAC DWG# 141A5400 REV.-.
TRANSITION PANEL STATION 500C - 500D +8 RBL 24 HAS CORROSION. GROUNDED - YES. REMOVED CORROSION FROM TRANSITION PNL AT STA 500C TO 500D+8 RBL 24 ORIGINAL THICKNESS IS .040 IAW B737-900 SRM 53-30-53-01-2. MAT LOSS .010 REMAINING THICKNESS .030. FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-00-53. MAT ID FOR NEW TRANSITION PNL AND SPLICE # BAC1496-444 7075-T62IAW B737-900 SRM 53-00-53-2R-5. FABRICATED NEW TRANSITON PNL AND SPLICE IAW B737-900 SRM 53-00-53-2R-5 INSTALLED NEW TRANSITION PNL AND SPLICE AT STA 500C-500D+8 RBL-24 IAW B737-900 SRM 51-40-02.
AFT CARGO TRANSITION PANEL SUPPORT STRUCTURE AT STA. 767 TO STA. 787 RBL.22 CORRODED. GROUNDED - YES. REMOVED AND REINSTALLED WITH NEW AFT CARGO TRANSITION PNL SUPPORT ANGLE. REMOVED CORR. FROM SUPPORT ANGLE ORIG THICKNESS .040 I.A.W. B737-900 SRM 53-60-15, 100% MAT. LOSSED FOUND TO BE OUT OF LIMITS I.A.W. B737-900 SRM 53-60-15. LOCATED, DRILLED AND DEBURRED NEW SUPPORT ANGLE I.A.W. B737-900 SRM 51-40-05.
AFT CARGO TRANSITION PANEL AT STA. 727I+9 TO STA. 727A LBL .22 CORRODED. GROUNDED - YES. REMOVED CORROSION FROM AFT PIT L/H TRANSITION PANEL AT STA 727A-727I+9 LBL 22 IAW B737-900 SRM 53-00-53-1A-2.2.D, 100% MATERIAL LOSS FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-00-1A-2.4A(2). REMOVED DAMAGE TRANSITION PANEL IAW B737-900 SRM 53-00-53-2R-5, MAT ID FOR TRANSITION PANEL IS BAC 1496.377.7075.T62 PO:1112194.1 IAW B737-900 SRM 53-60-53-01-2. FABRICATED, LOCATED AND DRILLED NEW TRANSITION PANEL IAW B737-900 SRM 53-00-53-2R-5. ALODINED, PRIMED AND INSTALED NEW AFT AT L/H TRANSITION PANEL AT STA 727A-727I+9. LBL 22 IAW B737-900 SRM 53-00-53-2R-5.
AFT CARGO TRANSITION PANEL AT STA. 727I+9 TO STA. 727B RBL.22 CORRODED. GROUNDED - YES. REPAIRED AFT PIT R/H TRANSITION PANEL IAW B737-900 SRM 53-00-53-2R-5. EVALUATED IAW B737-900 SRM 53-00-53-1A-2. ORIG: .040 REMOVED:100% MAT LOSS AND IS FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-00-53-1A-2. REMOVED AND INSTALLED IAW B737-900 SRM 53-00-53-2R-5.
AFT WET AREA FLOOR SUPPORT ANGLE AT STA 950 LBL 23 HAS CORROSION. GROUNDED - YES. REMOVED DAMAGE PER B737-900ER SRM 51-10-02 ORIG .080 REMOVED .035, REMAINING .045 FOUND OUT OF LIMITS PER B737-900ER SRM 53-70-51-1A-1 REMOVED FLOOR SUPPORT ANGLE IAW B737-900ER SRM 51-40-02, LOCATED AND DRILLED NEW FLOOR SUPPORT ANGLE IAW B737-900ER SRM 51-40-05 REF BAC DWG#147A515 INSTALLED FLOOR SUPPORT ANGLE IAW B737-900ER SRM 51-40-02 AND BAC DWG#147A5650 REV C.
AFT CARGO TRANSITION PANEL AT STA.787 TO STA.727I+9 LBL.22 CORRODED. GROUNDED - YES. REMOVED AND INSTALLED WITH NEW AFT CARGO TRANSITION PNL AND SPLICES AT STA. 727I+9 LBL.22 TO STA. 787 IAW B737-900 SRM 53-00-53. REMOVED CORR. FROM TRANS PNL AT 727I+9 LBL.22 TO 787 ORIG. THICKNESS .040 I.A.W B737-900 SRM 53-60-53. MAT. LOSSED .007 REMAINING THICKNESS .033 FOUND TO BE OUT OF LIMITS I.A.W B737-900 SRM 53-00-53 TOOL#T8224V DUE DATE 31/MAR/26 LOCATED, DRILL, COUNTERSINK AND DEBUR I.A.W B737-900 SRM 53-00-53. ALODINED AND PRIMED I.A.W B737-900 SRM 53-00-53.
AFT CARGO TRANSITION PANEL AT STA. 767 TO STA. 727I+9 RBL.22 CORRODED. GROUNDED - YES. EVALUATED AFT PIT R/H TRANSITION PANEL FROM STA 767-727I+9 ORIG:.040 REMOVED:.005 REMAINING: .035 & IS FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-00-53-1A & SRM 53-60-53-OI-2. TOOL#T8224V DUE:31/MAR/26. REPAIRED TRANSITION PANEL IAW B737-900 SRM 53-00-53-2R-5. REMOVED & INSTALLED IAW B737-900 SRM 53-00-53-2R-5.
AFT CARGO TRANSITION PANEL AT STA.767 TO STA.787 RBL.22 CORRODED. GROUNDED - YES. REMOVED CORR, FROM AFT CARGO TRANSITION SHIELD AT STA 767 TO 787 RBL.22 ORIG. THICKNESS .045 I.A.W. B737-900 SRM 53-60-15 MAT. LOSSED 100% FOUND TO BE OUT OF LIMITS I.A.W. B737-900 SRM 53-60-15. LOCATED AND DRILLED, DEBURRED AND COUNTERSINKED I.A.W. B737-900 SRM 51-40-05. REMOVED AND REPLACED WITH NEW SHIELD AND GUSSETT I.A.W. B737-900 SRM 51-40-02.
AFT CARGO DOOR THRESHOLD CORRODED. GROUNDED - YES. REMOVED CORROSION FROM AFT PIT THRESHOLD IAW B737-900 SRM 53-60-15-01-1. ORIGINAL MAT IS .045. MAT LOSS IS .005. MAT REMAINING IS .040. FOUND TO BE OUT OF LIMITS IAW B737-900 SRM 53-60-15-1A-1. RECEIVED NEW THRESHOLD PN#146AB123U25. PO#1120628.2. LOCATED AND DRILLED HOLES NEW THRESHOLD PNL IAW B737-900 SRM 51-40-05. INSTALLED NEW THRESHOLD PNL IAW B737-900 SRM 51-40-02.
STA 947 UPPER T-CAP HAS AREAS OF CORROSION FROM LBL 15 TO RBL 4. GROUNDED - YES. REMOVED DAMAGE AND FOUND OUT OF LIMITS I.A.W. B737-900ER SRM 53-70-51-1A-1, ORIGINAL THICKNESS OF UPPER FLANGES .180, MAT REMOVED .080, MAT REMAINING .100 I.A.W. B737-900ER SRM 53-70-51-1A-1 AND PER BAC DWG#147A5504 REV A. ACCOMPLISHED UPPER CHORD REPAIR I.A.W. B737-900ER SRM 53-70-51-2R-5, REMOVED AND RE-INSTALLED SUB-STRUCTURE PER BAC DWG#147A5650 REV A AND I.A.W. B737-900ER SRM 51-40-02.
DURING CABIN INSPECTION FOUND TWO EMER CEILING LIGHT COVERS MISSING. GROUNDED - YES. REPLACED MISSING EMER CEILING LIGHT COVERS REF AMM 33-51-03.
FWD L1 DOOR HARD TO OPEN PER 'A' FLIGHT ATTENDANT. GROUNDED - YES. PERFORMED GVI OF L1 DOOR NOT DEFECTS NOTED. GREASED DOOR HINGES, DOOR OPENS & CLOSES NORMAL. OK FOR SERVICE.
EMERGENCY LIGHT INOP OVER SEAT 27D. GROUNDED - YES. (RESOLVED ON W/O: 2011124 TASKCARD: N/R-00004 ) REMOVED & REPLACED EMERGENCY LIGHT POWER SUPPLY M2627 FOR E LIGHT AT 27ABC, OP TEST OK. CLEARS MEL 33-15D. PLACARD REMOVED.
MID CABIN EXIT SIGN WAS PARTIALLY DISLOGED. GROUNDED - YES. RESECURED EXIT SIGN.OP'S CKIS GOOD. REF AMM 33-51-01.
WHILE PERFORMING T/C 778233001, FOUND BATTERY PACKS FOR EMERGENCY LIGHTS REQUIRE REPLACEMENT IN: FWD ENTRY (2), MID CABIN (4), AND AFT ENTRY (1). GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHTS BATTERY PACKS, 2 IN FWD ENTRY, 4 IN MID CABIN, 1 IN AFT ENTRY, OPS NORMAL, REF AMM 33-51-06.
AFT OVERHEAD EMERGENCY EXIT LIGHT BROKEN. GROUNDED - YES. SWAPPED LENS'S ORANGE WITH PINK AND OPS CKS NORMAL PER OPS TEST AMM 33-51-00.
CONT CAB ZONE TEMP LIGHT ILLUMINATED UPON RECALL IT DOES RE-SET. GROUNDED - YES. (RESOLVED ON W/O: 1976139 TASKCARD: N/R-00004 ) CONFIRMED FAULT, #2 PACK/ZONE TEMP CONTROLLER SHOWS HARD FAIL "FLIGHT DECK TCV" FAULT. REMOVED & REPLACED V143 TCV REF AMM 21-61-21, GROUND FUNCTIONAL CK NML REF AMM 21-61-00-700-806-002. PULLED & RESET 1 TOTAL C/B. AIRCRAFT RELEASED FROM MEL 21-21G, C/N 08035453. SEAMC NOTIFIED "ASHRAF." REVERSAL OF CONFIGURATION CHANGES NOT REQUIRED.
DURING START OF #1 ENGINE, THE ENG VALVE CLOSED LIGHT ILLUMINATED BRIGHT BLUE AND DID NOT EXTINGUISH AFTER SUCCESSFUL START. GROUNDED - YES. ON DEFERRAL.
LAV WASTE SHOWED FULL AFTER LEVEL OFF IN CRUISE. NO TOILETS WOULD FLUSH. GROUNDED - YES. DIVERSION - PERFORMED WASTE TANK CONTINUOUS LEVEL SENSOR CLEANING PER AMM 38-33-02. INSPECTED BALL VALVE LINKAGE ASSEMBLY AND PROXIMITY SWITCH WITH NO DEFECTS NOTED. VERIFIED WASTE TANK EMPTY. ACCOMPLISHED LAV INOP BITE PER AMM 38-33-00 WITH NO FAULTS FOUND. ALL LAVATORY TOILETS OPS NORMALREF AMM 38-32-01. AIRCRAFT OKAY FOR SERVICE. SEAMC STEVE NOTIFIED.C# AP 4043953.
APU LUBE FILTER HOUSING,FILTER INDICATOR LEAKING. GROUNDED - YES. REMOVED AND REPLACED APU INDICATOR LUBE FILTER HOUSING,OIL FILTER,INDICATOR & AND HOUSING ASSY REF MM 49-91-13-400-802.OPS,LEAK CHECK GOOD.
#2 ENGINE SHORT TIME FAULT. THE VSV POSITION SIGNALS DISAGREE. FAULT CODE 75-10402. GROUNDED - YES. ON DEFERRAL.
#2 ENGINE SHORT TIME FAULT. THE VSV POSITION SIGNALS DISAGREE. FAULT CODE 75-20402. GROUNDED - YES. ON DEFERRAL.
FAULT LIGHT TRYING TO START APU. ACCOMPLISHED THE QRH AND TRIED AGAIN. BUT GOT THE FAULT LIGHT AGAIN. (ON GROUND). GROUNDED - YES. ON DEFERRAL.
#2 ENGINE LONG TIME FAULT. THE VSV POSITION SIGNAL IS OUT OF RANGE. FAULT CODE 75-10392. GROUNDED - YES. ON DEFERRAL.
APU FAULT LIGHT, 2 START ATTEMPTS. GROUNDED - YES. PERFORMED APU OPERATIONAL TEST REF AMM 49-11-00-710-801. FOUND FAULT MAINTENANCE MESSAGE 49-41012 WHILE COMPLETING FIM 49-60 TASK 801. PER MAINTENANCE MESSAGE CHART, FIM TASK 49-40 TASK 803 IS REQUIRED FOR FAULT MESSAGE 49-41012. FIM 49-40 TASK 803 EXPLAINS THAT IF THE CDU DISPLAY DOES NOT SHOW MAINT MESSAGE 49-41012 AGAIN IN THE LAST APU CYCLE THEN YOU CORRECTED THE FAULT. MAINT MESSAGE WAS 1 CYCLE OLD AFTER SUCCESSFUL START ON GROUND SO FAULT HAS BEEN CORRECTED. PER SEAMC CSS PASSED.
DESCENDING THROUGH 3,500' ENG VALVE CLOSED BLUE LIGHT ILLUMINATED. #1ENG. GROUNDED - YES. ON DEFERRAL.
ON MASTER CAUTION RECALL CONT CAB ZONE TEMP ILLUMINATED. LIGHT EXTINGUISHED WHEN MASTER CAUTION SYATEM RESET. GROUNDED - YES. PERFORMED PZTC BITE PROC. FIM 21-62 TASK 801, R/H FLT DECK TRIM VALVE FAULT ON BIT, PREV FLIGHT AND CLEARED ON VERIFY. ACCOMPLISHED BITE FOR SECOND TIME AND FAULT NO LONGER PRESENT. NO HISTORY 30 DAYS, MEL CLEARED AND PLACARDS. REMOVED SEAMC ASHRAF NOTIFIED.
#1 "ENGINE VALVE CLOSED" LIGHT CAME ON AFTER ROTATION. EXTINGUISHED APPROACHING 10,000 FT IN CLIMB. ALL OTHER INDICATIONS WERE NORMAL TO INCLUDE FUEL FLOW. GROUNDED - YES. PERFORMED B737-900 FIM 73-06 TASK 805, NO FAULT NOTED. START AND RAN #1 ENG, NO FAULT NOTED.
LEFT PACK LIGHT ILLUMINATES DURING RECALL. GROUNDED - YES. ON DEFERRAL.
#1 ENG PACK LIGHT ILLUMINATED WHILE TAXING OUT ON RECALL. GROUNDED - YES. (RESOLVED ON W/O: 1968004 TASKCARD: N/R-00005 ) ACCOMPLISHED PZTC BITE PROCEDURE REF. FIM 21-62 TASK 801. NO FAULTS ACTIVE OR IN HISTORY. PACK/ZONE TEMPERATURE CONTROLLER BITE TEST NORMAL REF AMM 21-61-00-700-806-002.NO HISTORY FOR 90 DAYS. NO MAINTENANCE PROCEDURE TO REVERSE. REMOVED PLCARDS. THIS CLEARS MEL 21-32B, C/N 04059453. ETOPS GROUND VERIFICATION SUCCESSFUL.REMOVED PLACARDS.SEAMC SCOTT NOTIFIED.
FIRE LOOP B #2 ENG WILL NOT ILLUMINATE (TEST). GROUNDED - YES. ON DEFERRAL.
HF 1 ON RADIO TUNING PANEL INDICATING FAIL - FAIL. GROUNDED - YES. ON DEFERRAL.
FORWARD LOWER COFFEE MAKER LEAKING WATER ONTO GALLEY FLOOR IN FLIGHT. LEAK UNCONTROLLABLE WITH VALVE TURNED OFF. GROUNDED - YES. DIVERSION -- REF: L/P #60571445. UPON ARRIVAL TO A/C NO LIQUID ON FLOOR. OPENED ALL FWD GALLEY CABINETS VERIFIED ALL DRY NO LIQUID FOUND. OPEN C/B & INST. REMOVED UPPER C/M NO LIQUID FOUND. REINST. C/M CLOSED C/B & REMOVED. VERIFIED FWD GALLEY COFFEE MAKERS WATER VALVE IS IN CLOSED POSITION REF. M/M 12-14-01-860-003 & CM/M 25-30-501477-1 INST. SERVICEABLE LOWER C/M. C/OSED C/B & REMOVED C/B COLLAR REF. M/M 25-32-01 TURNED FWD GALLEY WATER SUPPLY "ON". VERIFIED NO LEAKS FROM FWD GALLEY OR BOTH COFFEE MAKERS. ACCOMP. BREW TEST OF BOTH COFFEE MAKERS, BOTH PASS TEST REF. FIM 25-31 TASK 803 REF: L/P'S #60571440. VERIFIED FWD GALLEY AREA IS DRY. REVERSED A/C CONFIGURATION CHANGE FWD GALLEY WATER SUPPLY TURNED "ON" NO LEAKS.
#2 ENGINE HAS SHORT TIME FAULT 75-10402, THE VSV POSITION SIGNALS DISAGREE. GROUNDED - YES. #2 ENGINE VSV "B" ACTUATOR BELL CRANK HAS EXESSIVE PLAY. (L/H SIDE) REPLACED LH VSV BELL CRANK ASSY PER AMM 72-32-00-900-805. OPS TEST GOOD MIG 2C 40-0047291 COMPLETED
#2 ENG OIL CAP SEAL WILL NOT STAY ON OIL CAP. GROUNDED - YES. REMOVED AND REPLACED THE #2 ENGINE OIL CAP SEAL PER AMM 79-11-01-300-801-F00.
ACCOMPLISHED #2 ENGINE VENTS AND DRAINS INSPECTION. FOUND OIL COMING FROM THE N2 DRIVE PAD DRAIN LINE. GROUNDED - YES. REPLACED #2 ENGINE N2 DRIVE PAD SEALOL SEAL IAW AMM 72-60-00-400-F00 UP TO STEP 5.G.(5) (D), LEAK CK STILL REQ JM 53119 08-11-23INSTALLED #2 ENGINE N2 DRIVE PAD COVER IAW AMM 72-63-01-400-801-F00 UP TO STEP 3.F.(2), LEAK CK STILL REQ JM 53119 08-11-23. INSP 82261 08-11-2023LEAK CHECK OF N2 SEALOL GOOD. NO LEAKS NOTEDLEAK CHECK OF DRIVE PAD COVER COMPLETE.
THE #2 ENGINE HAS SHORT TIME FAULT 75-20402, THE VSV POSITION SIGNALS DISAGREE. GROUNDED - YES. #2 ENGINE VSV "B" ACTUATOR BELL CRANK HAS EXCESSIVE PLAY. (R/H SIDE) REPLACED R/H VSV ACTUATOR BELLCRANK ASSY PER AMM 72-32-00-900-805. OPS TEST GOOD.
#2 ENGINE VSV 3RD STAGE BRIDGE ON L/H SIDE ( "B" CHANNEL ) HAS 4 MISSING BUSHING. GROUNDED - YES. REMOVED #2 ENGINE VSV 3RD STAGE BRIDGE CONNECTING LINK REF. AMM 72-32-00-900-804-F00. REPLACED 4 EA. BUSHING ON BRIDGE CONNECTING LINK ASSY. REF. EIPC # 72-00-02-05 ITEM # 70. INSTALLED #2 ENGINE VSV 3RD STAGE BRIDGE CONNECTING LINK REF. AMM 72-32-00-900-804-F00.
SPEED TRIM FAIL ILLUMINATED UPON SHUTDOWN CHECK LIST. GROUNDED - YES. PERFORMED DFCS BITE IAW TASK 22-11 TASK 801 NO FAULT NOTED.
#2 ENG LONG TIME FAULT 75-10392THE VSV POSITION SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.
TECH SERVICES/POWERPLANT ENGINEERING REQUEST FOLLOW-UP TO CONTINUED #2 OIL CONSUMPTION GREATER THAN EXPECTED -----(#PRI2)-----ETOPS SIGNIFICANT SYSTEM----EXTENDED GROUND TIME AND ENGINE RUN REQUIRED. GROUNDED - YES. (RESOLVED ON W/O: 1960952 TASKCARD: N/R-00010 ) ACCOMPLISHED TSR STEPS 1-4. NO DEFECTS NOTED. (ASA #41481 A.MAHONEY)REPLACED THE #2 ANTI-LEAK VALVE PER AMM 79-21-09. PULLED AND RESET 2 C/BS. LEAK CHECK REQUIRED (ASA #65613 T.SPRING)REMOVED AND REPLACED #2 LUBE UNIT REF AMM 79-21-01 LEAK CHECK REQUIRED. RE-CHECK OIL QUANTITY AFTER ENGINE RUN (ASA #41481 A.MAHONEY)ACCOMPLISHED OIL ANTI-LEAK VALVE INSTALLATION TEST. LEAK CHECKED OK, REF AMM 79-21-09-400-801-F00 STEP 3.I. (ASA #98901 C.WELKER)ACCOMPLISHED LUBRICATION UNIT INSTALLATION TEST AND SERVICED #2 ENG OIL TO FULL. LEAK CHECK OKAY, REF AMM 79-21-01-400-801-F00 STEP E.I. (ASA #98901 C. WELKER)ACCOPLISHED VENTS AND DRAINS INSPECTION AND PART POWER LEAK CHECK, TSR STEPS 7 AND 8. REF LOG PAGE 60571437 FOR FINDINGS.TSR 714729 COMPLETE.
WITH APU OFF AND PACKS ON ENGINE BLEEDS DUCT SHOWED 9 PSI & RIGHT DUCT SHOWED 19 PSI (ON GROUND). AT CRUISE THRUST LEFT DUCT 40 PSI AND RIGHT DUCT 45 PSI AT FLIGHT IDLE IN DESCENT LEFT DUCT 13PSI AND 28 PSI RIGHT DUCT. GROUNDED - YES. ACCOMPLISHED ENGINE BLEED AIR SYSTEM HEALTH CHECK REF B737-900 AMM 36-11-00.FOUND HIGH STAGE VALVE DIFFICULT TO MOVE TO OPEN & CLOSE POSITIONS & HIGH STAGE REGULATOR LEAKING FROM DOWNSTREAM PRESSURE PORT AT SENSE LINE. REMOVED & REPLACED HIGH STAGE VALVE REF AMM 36-11-06 & HIGH STAGE REGULATOR REF AMM 36-11-07. ACCOMPLISHED ENGINE BLEED AIR CROSSOVER TEST PER AMM 36-11-00. ALL DUCT PRESSURES NORMAL.
#2 ENGINE TREND DATA STILL SHOWS ELEVATED LOW PRESSURE ROTOR VIBRATION LEVELS AFTER LAST FAN LUBE AND 2 FAN TRIM BALANCE PROCEDURES. GROUNDED - YES. C/W STEPS 1-7 WHILE PERFORMING VIBE SURVEY FOUND VIBRATIONS OUT OF LIMITS, PERFORMED TRIM BALANCE VIBES STILL OUT OF LIMITS REF T/C 78472010.ACCOMPLISHED FAN BLADE MAP AND RE-ACCOMPLISHED T/CARD 78472010 SPINNER CONE/AVM WEIGHTS MOVED BACK TO ALL 7 OR 14 REF 71-00-00-750-808-FOO TEST 7 VIB SURVEY STILL NEEDED AND TEST 14B IF NEEDED AFTER TEST 7 .PERFORMED TEST 7 VIB SUREVY ON #2 ENGINE VIBES WERE OUT OF LIMITS AND NEED TEST 14B PER AMM 71-00-00 .RETRIEVED WEIGHT SOLUTION FROM AVM AND PERFORMED TEST 7 VIB SURVEY VIB LEVEL IS WITHIN LIMITS REF AMM 71-00-00
HF RADIO #1 DISPLAYS "FAIL". GROUNDED - YES. PERFORMED HF SYSTEM OPERATIONAL TEST REF AMM 23-11-00. OPERATIONAL TEST OK. MEL 23-11A CLEARED. PLACARDS REMOVED.
PERFORMED ENG RUN VIB SURVEY AS REQUESTED BY TSR14495, #2 ENG WAS FOUND TO BE OUT OF VIB LIMITS AT 64% N1 IN REF TO AMM 71-00-00 TEST 7. GROUNDED - YES. SPINNER WEIGHTS MOVED AFTER COMPLETION OF TEST 7 AND AC ENG RUN TEST 7 PERFORMED AGAIN. HIGHEST VIB WAS 1.4 DURING RUN SEE TSR714496.
FOUND #2 ENG SPINNER RQD RPLCMNT. GROUNDED - YES. RMVD REPLACED #2 ENG SPINNER REF T/C 78472010.
SINGLE FMC MSG ENROUTE WITH SUBSEQUENT VNAV ISSUES ON ARRIVAL. WOULD NOT STAY VNAV. GROUNDED - YES. COMPLIED WITH FMC BITE PROCEDURE IAW B737-900 FIM 34-61 TASK 801, NO FAULTS NOTED.
EMERGENCY LIGHT SYSTEM OPERATIONAL CHECK FAILED FOR ALL LIGHTS ASSOCIATED WITH BATTERY PACKS M1676 & M1672. GROUNDED - YES. REMOVED AND REPLACED SERVICEABLE EMERGENCY POWER SUPPLY S/N 112118 AT M1676 AND S/N 112185 AT M1672 IAW B737-NG AMM 33-51-06-960-806 PERFORMED EMERGENCY LIGHT OPERATIONAL CHECK. OPS-CHECK GOOD. IAW B737-NG AMM 33-51-00-720-801.
#1 ENG. FUEL DRIPPING FROM DRAIN APPROX 4 DROPS PER MIN. GROUNDED - YES. L/H VSV ACTUATOR LEAKING W/IN THRESHOLD LIMITS, UNDER 90 DROPS PER MINUTE, 25 FLIGHT CYCLE DEFERRAL REF B737-900 AMM 71-71-00-200-801. REMOVED AND REPLACED #1 ENG L/H VSV ACTUATOR IAW AMM 75-31-01-400-801-F00 & 75-31-01-000-801 LEAK CHECK GOOD.
#2 ENGINE OIL TREND DATA CONTINUES TO SHOW OIL CONSUMPTION TO GREATER THAN EXPECTED, WITH RECENT CONSUMPTION RATE INCREASING. ENGINE POWER RUN REQUIRED. GROUNDED - YES. OIL COVER LEAKING AT THE BASE JUST ABOVE THE OIL RETURN LINE, NOTED GASKET BROKEN UPON REMOVAL. REPLACED OIL COVER AND GASKET REF B737-900 AMM 72-56-00. FOUND OIL NIPPLE ON REAR FACE OF THE NO. 5 BEARING SUPPORT DAMAGED BUT NOT LEAKING, REPLACED PER AMM 72-56-00. REPLACED THE OIL SUPPLY TUBE AS DIRECTED, DESPITE IT HAVING NO DEFECTS, REF AMM 72-56-00. ALL OTHER STEPS COMPLETED WITH NO DEFECTS NOTED. LK AND OPS CKS GOOD.
AFTER REMOTE DE-ICE THE FLIGHT DECK BECAME EXTREMELY HOT WITH NO CONTROL VIA CONT CAB TEMP CONTROLLER. FOLLOWED QRH, PACK RESET, OPERATION NORMAL. WITH IN 2-3 MINUTES SAME PROBLEM OCCURRED. RETURNED TO GATE. GROUNDED - YES. PER B737-900 FIM 21-53 TASK 820, OPENED ACCESS PANEL ON LH AFT PLENUM/DIFFUSER. RAN LH PACK AND FOUND ACM BLADES NOT MOVING. SUSPECT A BAD LH AIR CYCLE MACHINE. FOUND NO AIR COMING OUT OF THE PACK EXHAUST. LH PACK LIGHT COMES ON LESS THAN ONE MINUTE AFTER TURNING PACK ON. REMOVED L/H AIR CYCLE MACHINE REF B737-900 AMM 21-51-04. L/H AIR CYCLE MACHINE REPLACED REF AMM 21-51-17. LEAK CHECK GOOD. OPS CHECK GOOD TEMP ON GAGE INDICATES BELOW 10 C WHEN SWITCHED TO COLD. ACCOMPLISHED PACK/ZONE TEMPERATURE CONTROLLER BITE REF AMM 21-61-00-700-806-002 NO FAULTS/DEFECTS NOTED. LEFT PACK LIGHT EXTINGUISHED.
LEFT PACK CAUTION LIGHT ILLUMINATED WHILE AT GATE. DUCT TEMPERATURE REACHED 40C. ACCOMPLISHED QRC. TRIP RESET ACCOMPLISHED. PACK LIGHT REMAINED ILLUMINATED . GROUNDED - YES. FOUND L/H ACM SEIZED/DAMAGED COLING FAN. REMOVED L/H AIR CYCLE MACHINE REF B737-900 AMM 21-51-04. REPLACED LEFT AFT SRADA ACTUATOR. REF AMM 21-51-27. OPS & LEAK CHECK GOOD.
#2 ENG R/H VSV DRAIN DRIPPING FUEL. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE R/H VSV ACTUATOR IN REF TO B737-900 AMM 75-31-01. LEAK & OPS CHECKED GOOD. REF AMM 75-31-01-400-802.
WHILE IN CRUISE LEFT PACK LIGHT ILLUMINATED - RAN CHECKLIST COULD NOT GET PACK LIGHT TO EXTINGUISH - CONTINUE FLIGHT WITH ISOLATION VALVE IN THE CLOSED POSITION. GROUNDED - YES. REMOVED AND REPLACED RAM AIR INLET ACTUATOR REF BOEING 737-900 AMM TASK 21-51-21-000/400-801.
HF RADIO 1 FAIL. GROUNDED - YES. PERF HF COMMUNICATION SYS TEST AND HF BITE TEST REF B737-900 FIM 23-11 TASK 806 AND REF FIM 23-11 TASK 801. SYS TEST OPS GOOD.
LH PACK LIGHT ON MASTER CAUTION RECALL EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE #1 CONTROLLER SHOWED TCV FAULT WAS ABLE TO RESET. RAN BITE CK 2 MORE TIMES NO FAULTS NOTED. #2 CONTROLLER CK GOOD NO FAULTS NOTED. MASTER CAUTION RECALL NO LH PACK LIGHT GROUND VERIFICATION CK GOOD REF B737-900 FIM 21-62 TASK 801.
FLIGHT ATTENDANT REPORTS L1 DOOR HANDLE IS DIFFICULT TO OPEN. GROUNDED - YES. COMPLETED FWD ENTRY DOOR SYSTEM DOOR HANDLE TORQUE TEST REF B737-900 AMM 52-11-00-700-804 STEP 4. E. (3) (A THRU H) HANDLE OPEN AND CLOSE FORCES WITHIN LIMITS.
CONT CAB ZONE TEMP LIGHT ILLUMINATES ON MASTER CAUTION RECALL AND GOES OUT WHEN RESET. GROUNDED - YES. BITE SHOWED CONTROL CABIN TRIM AIR VALVE FAULT. ACCOMPLISHED B737-900 FIM 21-62 TASK 832. OPS CHECK GOOD.
RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED AT CRUISE. ASA QRH RAN, ILLUMINATED AGAIN AFTER SWITCH REPOSITIONED ON. SWITCH OFF FOR THE DURATION OF THE FLIGHT. GROUNDED - YES. FOUND WINDOW HEAT SENSOR FAULT ON BITE REMOVED AND REPLACE RH SIDE WINDOW DUE TO A/C HISTORY REF B737-900 AMM 56-12-11.
RT SIDE WINDOW HEAT OVERHEATED, FOLLOWED QRH, OVERHEAT REMAINED ILLUMINATED. GROUNDED - YES. NO OVERHEAT LIGHT - SYS BITE TESTS GOOD.
#2 ENGINE TAI VALVE INOP. GROUNDED - YES. REPLACED #2 ENG TAI VALVE, OPS CHECK OK. REF. B737-900 AMM 30-11-12-400-801.
#1 ENG HIGH STAGE REGULATOR INOP. GROUNDED - YES. REPLACED #1 ENG HIGH STAGE REGULATOR , OPS LEAK CHECK OK. REF B737-900 AMM 36-11-07-400-801.
AISLE EMERGENCY LIGHTS INOP ROW 25 & 29 DEF. GROUNDED - YES. REPLACED BATTERY PACK FOR PACK M2627. OP CK NORMAL. REF B737-900 SSM 33-51-13-103.
FA REPORTS ON FINAL LEFT REAR OVEN EMITTING SMOKE AND BURNING SMELL FA ALSO SAW SPARKS INSIDE OVEN . OVEN WAS POWERED OFF. GROUNDED - YES. REMOVED AND REPLACED AFT GALLEY OVEN REF B737-900 AMM 25-32-01. OPS CHECK GOOD.
RT PACK LIGHT ON RECALL, LIGHT GOES OUT ON RESET (FL330). GROUNDED - YES. RIGHT PACK TCV FAILED DURING BITE. REMOVED & REPLACED RIGHT PACK TCV. REF B737-900 AMM 21-51-10-000-801 & 21-51-10-400-801.
DURING PDC FOUND #2 ENGINE FUEL LEAK. GROUNDED - YES. PERFORMED FUEL LEAK TEST REF B737-900 AMM 75-31-01. OBSERVED IT HAS 60 DRIPS PER MIN AT START LH VSV. PERFORMED ENGINE RUN FOR 5 MINS REF AMM 71-00-00. OBSERVED NO LEAKS NOTED ON LH VSV OR ANY DRAIN LEAK. CHECK GOOD. REMOVED AND REPLACED #2 ENG LH VSV IAW AMM 75-31-01/401. ACTUATOR AND IDLE LEAK CHECK OF VSV GOOD. ORIG SUB DATE: 11/23/2022
#2 ENGINE ANTI ICE COWL VALVE OPEN LIGHT REMAINED ILLUMINATED BRIGHT WITH SWITCH IN THE ON POSITION. ENGINE DISPLAY SHOWED AN AMBER TAI INDICATION. GROUNDED - YES. REMOVED AND REPLACED #2 ENG ANTI ICE VALVE REF B737-900 AMM 30-21-11.
RIGHT FMC FAILURE DURING LAST HOUR OF CRUISE FLIGHT DRI QRH AND DID NOT RESTORE RIGHT FMC. GROUNDED - YES. RE CONFIGURE FMCS TO NORMAL PERFORMED B737-900 FIM 34-61 TASK 807 OPS CHECK NORMAL SYSTEM OK FOR SERVICE.
AUTOLAND NO SUCCESSFUL. ATTEMPTED TO LAND GREATER THAN 50' LEFT OF CENTERLINE. WINDS 350/8 RWY 03. CRITICAL AREA PROTECTED. GROUNDED - YES. INITIAL EVALUATION, PERFORMED HGS SYSTEM TEST IAW B737-900 SMM 34-36-00 SEC 500. FAULT REVIEW REVEALED ILS ANOMALY DETECTED ON LEG 7, WHICH WOULD LINE UP WITH DEFECT ORIGINATION DATE. ALSO NOTED: FCC1 ON 2 LEGS IN LAST 20. NO OTHER DEFECTS NOTED. SYSTEM TEST PASS. PERFORMED DFCS FAULT REVIEW IAW B737-900 AMM 22-11-00-740-806. NO RELEVANT FAULTS NOTED. PERFORMED DFCS LAND VERIFY IAW AMM 22-11-00-700-801. ALSO REF B737-900 FIM 22-11 TASK 899. LRU REPLACE TEST FOR FCC IAW B737-900 22-11-00-740-815 DUE TO HGS FAULTS NOTED. ALL TESTS PASS. NO ADDITIONAL FAULTS NOTED. NO HISTORY FOR THIS DEFECT.
LEFT PACK LIGHT ILLUMINATES DURING RECALL. GROUNDED - YES. PERFORMED B737-900 FIM 21-53 TASK 821. PERFORMED PACK TEMP CONTROL BITE PER FIM 21-62 TASK 801. FAULTED THIS PACK TCV. PERFORMED FIM 21-62 TASK 830 AND THIS PACK TCV RESET WITH NO FURTHER FAULTS.
L-1 WINDOW HEAT INOP. GROUNDED - YES. PERFORMED WINDOW HEAT CONTROL UNIT BITE CK REF B737-900 FIM 30-41 TASK 801 AND L-1 CONTROLLER FAULTS WINDOW SENSOR. PERFORMED FIM 30-41 TASK 812 AND SWAPPED TO SPARE SENSOR AND FAULT CLEARED, BAD SENSOR MARKED AS INOP.
#2 ENGINE AMBER TAI DISPLAYED ON EIS. CYCLED ON AND OFF DURING FLIGHT. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE NOSE COWL ANTI ICE VALVE REF B737-900 AMM 30-21-11-000-801, 30-21-11-400-801.
DURING ENG RUN FOR VIB SURVEY, #2 ENG BLEED AIR WOULD NOT SHUT OFF. GROUNDED - YES. REMOVED & REPLACED #2 ENG BLEED AIR REGULATOR REF B737-900 AMM 36-11-03. LEAK & OPS CHECKED GOOD.
PER ASA T/C 78472010 #1 ENG. FAN BLADE LUBE FRONT SPINNER CONE WHITE ANT EROSION COATING MISSING MORE THAN 50%. GROUNDED - YES. REMOVED AND REPLACED FRONT SPINNER CONE ON #1 ENG. PER. ASA T/C 78472010.
PER ASA T/C 78472010 #1 ENG. FAN BLADE LUBE SPACERS #8,10, AND 12 ARE DISBONDED. GROUNDED - YES. REMOVED AND REPLACED SPACERS #8, 10, AND 12 PER ASA T/C 78472010.
LEFT SIDE WINDOW OVERHEAT ILLUMINATED. GROUNDED - YES. PERFORMED BITE OF LH SIDE WHCU M322 IAW B737-900 FIM 30-41 TASK 801. BITE PASSES, GREEN LED, BUT SHOWS WINDOW SENSOR ON EVERY LEG OF FAULT HISTORY. CHECKED WINDOW SENSOR RESISTANCE IAW B737-900 AMM 30-41-21-760-801, CHECKS GOOD, 306 OHMS. REF B737-900 WDM 30-41-12-2, CONNECTOR D10568 THROUGH COIL CORD ASSY, NO DEFECTS NOTED. DUE TO SENSOR ALREADY HAVING BEEN SWAPPED TO SPARE, AND DUE TO HISTORY, PERFORMED L2 WINDOW TAP WINDOW H16, MOVED TO TB5016-1 PER AMM TASK 30-41-21-000-801. REMOVED AND REPLACED CAPT NO. 2 SLIDING WINDOW PER AMM 56-12-11. OPERATIONAL AND AND FUNCTIONAL CHECKS GOOD.
L2 WINDOW OVERHEAT ILLUM IN FLIGHT ON HIGH DOWNWIND AT 5000'- INFO ONLY- RE-ESTABLISHED ON LANDING OP OK. GROUNDED - YES. NO HISTORY, INFO NOTED.
L2 WINDOW OVERHEAT IN FLIGHT. GROUNDED - YES. ON DEFERRAL. ACTUATOR
INFO ONLY L-2 WINDOW OVERHEAT ILLUMINATED IN FLIGHT GROUNDED - YES. INFO NOTED BY MAINTENANCE.
ON FINAL APPROACH LEFT (SIDE) WINDOW HEAT OVERHEAT LIGHT ILLUMINATED CONTINUOUSLY. GROUNDED - YES. PERFORMED BITE ON WINDOW HEAT CONTROLLER. OPS CHK GOOD REF B737-900 AMM 30-41-11.
DURING IDLE LEAK CHECK OF THE #1 ENG FOUND FUEL LEAKING FROM THE FUEL HEATER SERVO, CAP. GROUNDED - YES. REMOVED AND REPLACED FUEL HEATER SERVO REF B737-900 AMM 73-11-07-400-801-F00/AMM 73-11-07-400-801-F00. NO LEAKS NOTED.
START VALVE OPEN ANNUNCIATOR REMAINED ILLUMINATED AFTER ENGINE #2 START. RAN QRH AND ANNUNCIATOR STILL ILLUMINATED. GROUNDED - YES. PERFORMED GOOD CHECKS ON VALVE AND WIRING FROM DEU1 AND DEU2 TO START VALVE PER B737-900 FIM 80-07 TASK 809. PERFORMED GOOD LLM AND OPS TESTS OF DEU1 AND DEU2 PER B737-900 AMM 31-62-21-400-801. REMOVED/REPLACED #2 ENGINE START VALVE - REF AMM 80-11-03. NO DEFECTS NOTED DURING PNEUMATIC LEAK CHECKS.
LEAK DURING ENGINE START ON #1 ENGINE OF THE PILOT VERIFIED LEAK COMING FROM #1 ENGINE HPTACC VALVE DRAIN AFTER MAINTENANCE IDLE POWER LEAK REF B737-900 AMM 71-00-00-700-801-100. GROUNDED - YES. REMOVED AND REPLACED #1 ENG HPTACC REF B737-900 AMM 75-21-01OPS AND LEAK CHECK GOOD. NO FURTHER DEFECTS NOTED.
APU FAIL TO START ON BATTERY GROUNDED - YES. APU "LOW BATTERY VOLTAGE FAIL TO START" MESSAGE 49-41249 ON 17 FAILED STARTS. PERFORMED B737-900 FIM 49-40 TASK 822, PER FIM REMOVED AND REPLACED APU START POWER UNIT REF B737-900 AMM 49-41-71/401. OP CHECK NORMAL.
RIGHT SIDE WINDOW OVERHEAT. FOLLOWED QRH PROCEDURE WINDOW OPS NORMAL. GROUNDED - YES. PERFOMED WINDOW HEAT TEST PERB737-900 AMM 30-40-00. TEST OK.
EMERGENCY EXIT SIGN, MIDDLE AISLE HANGING DOWN. GROUNDED - YES. SECURE EMERGENCY EXIT SIGN AT MIDDLE AISLE REF B737-900 AMM 33-51-01.
RIGHT FMC DURING PREFLIGHT SHOWING "MAP" FLAG AND "NO VSPD" ON COPILOTS INSTRUMENTATION. GROUNDED - YES. NOTICES EXTINGUISH WHEN FMC SELECTED TO EITHER BOTH ON LEFT OR RIGHT. BOTH FMC SENSOR PAGES FAIL THEIR OPPOSITE COMPUTER. CYCLED RIGHT FMC CB NORMAL OPERATION RESUMES W/ NO FLAGS. ACCOMPLISHED FMC OPERATIONAL TEST REF B737-900 AMM 34-61-00, OBSERVING CORRECT SOFTWARE INSTALLATION AND PERFORMANCE PARAMETERS. ETOPS GROUND VERIFICATION SUCCESSFUL.
ZONE TEMP CONT ZONE LIGHT IS ON WITH RECALL. GROUNDED - YES. PERFORMED PZTC BITE PER B737-900 FIM 21-62 TASK 801 #2 CONTROLLER FAULTED CONTROL CABIN TRIM AIR VALVE. PERFORMED FIM 21-62 TASK 832 INITIAL EVALUATION CONTROL CABIN FAULT RESET. OPERATED PACKS FOR 15 MINUTES AND FAULT DID NOT RETURN. REF B737-900 AMM 21-00-00-800-803. PACK IS OPERATING CORRECTLY.
PER T/C 78472010 # 2 ENG FAN BLADE LUBE # 22 SPACER IS DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #2 ENG, #22 SPACER REF TC 78472010.
WHILE DOING EMERGENCY LIGHT OPS CHECK DISCOVERED AFT EMERGENCY LIGHT SIGN INOP. GROUNDED - YES. REPLACED M1673 BATTERY PACK PER B737-900 AMM 33-51-06 PG 201. EMERGENCY LIGHTS CHECKED GOOD.
ON PREFLIGHT, FOUND C/B FOR THE RIGHT FRONT WINDOW HEAT POPPED (ON OVHD, WINDOW HEAT SWITCHES WERE ON AND RT FWD SHOWED AMBER OVERHEAT. GROUNDED - YES. INSPECTED WIRING CIRCUIT-NORMAL AND NO HISTORY REF B737-900 WDM 30-41-12. RESET C/B ON P6-12 PANEL (RT FRONT WINDOW HEAT) REF B737-900 AMM 20-60-01RT FRONT WINDOW HEAT OPS NORMAL REF AMM 30-41-00. GRD VERIFICATION SUCCESSFUL.
DURING MASTER CAUTION RECALL AFTER STARTING MOTORS, L PACK LIGHT ILLUMINATED. LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED LH PACK RAM AIR EXHAUST ACTUATOR (SRADA) REF B737-900 AMM 21-51-27/401. BITE TEST ON THE LEFT AND RIGHT PACK/ZONE TEMPERATURE CONTROLLERS AND CHECK/ADJUSTMENT OF THE RAM AIR EXHAUST ACTUATOR ALL CHECK GOOD.
#1 PACK LIGHT ILLUMINATES WITH RECALL AND EXTINGUISHES WITH RESET. GROUNDED - YES. PERFORMED PZTC BITE REF B737-900 FIM 21-62 TASK 801. ON PREV FLT ON ZONE TEMP CONTROLLER 1, FOUND SRADA EXIT WAS FAULTED. PUSHED VERIFY ON CONTROLLER AND GREEN GO LIGHT ILLUMINATED. REF FIM 21-62 TASK 853, CYCLED 28VDC FOR LEFT SRADA AND PERFORMED PZTC BITE VERIFY. GREEN GO LIGHT ILLUMINATED. PERFORMED RAM AIR SYSTEM OPS TEST REF B737-900 AMM 21-51-00. NO FAULTS WERE FOUND DURING OPS TEST. OPS TEST GOOD. THIS CLEARS MEL 21-32B. ALL PLACARDS REMOVED. SEAMC WILL NOTIFIED.
VTK AND LOSS OF FMC DATA ON CAPT MAP DISPLAY NO FMC DATA ON BOTH CDU'S CLEARED ITSELF WITHIN SIXTY SECONDS. GROUNDED - YES. PERFORMED B737-900 FIM 34-61-836 RESET BOTH FMC, OPS CHECK NORMAL. SEAMC DAVE NOTIFIED.
#2 ENGINE "B" LOOP INOP ON TEST. "A" TEST OK. GROUNDED - YES. CHECKED FOUND PREVIOUS REPAIR AT FAN UPPER B TERMINAL BROKEN. RETERMINATED RING TERMINAL REF SWPM 20-30-11. COMPLETED B737-900 FIM 26-10 TASK 805. #2 ENG FIRE DETECTION GROUND VERIFICATION TEST GOOD REF B737-900 AMM 26-11-00-710-801.
INFO ONLY AUTOLAND UNSUCCESSFUL, NO FLARE ARM *. GROUNDED - YES. ACCOMPLISHED FAULT ISOLATION TASK FOR INBOUND CONDITION RELATED TO AUTOLAND PER B737-900 FIM 22-11 TASK 899 - DFCS FAULT REVIEW SHOWED NO RELEVANT FAULTS ON EITHER FCC AND DFCS GROUP #49 (LAND VERIFY) TEST PER B737-900 AMM 22-11-00-700-801 - ALL TESTS PASS.
ENG FIRE SW #2 DOES NOT LIGHT UP DURING FIRE TEST. GROUNDED - YES. FOUND #2 ENG FAN UPPER B TERMINAL DETACHED. CRIMPED NEW TERMINAL ON REF 737SWPM 20-30-11. FIRE TEST OPS NORMAL.
L/H STARTER MAGNETIC CHIP DETECTOR LOCKING PINS BENT. GROUNDED - YES. REPLACED L/H STARTER MAGNETIC CHIP DETECTOR WITH NEW.
UPON COMPLETION OF T/C 78233008 FOUND EXIT ROW SIGN INDICATOR DO NOT COME ON. GROUNDED - YES. REMOVED AND REPLACED REPLACED BATTERY PACK ASSY M1695. OPS NML. REF B737-900 AMM 33-51-06.
LEFT FMC FAIL AT TOD FL 330 FOR 1 MIN THEN RECOVERED FOR REMAINDER OF FLIGHT. GROUNDED - YES. PERFORMED FMCS L&R INFLT FAULTS BITE - NO FAULTS LAST 10 FLTS. PERFORMED B737-900 FIM 34-61 TASK 836, INITIAL EVALUATION GOOD. GROUND VERIFICATION TEST GOOD.
VERTICAL SPEED WINDOW HAS SEGMENTS DISPLAYED INCORRECTLY. GROUNDED - YES. REMOVED AND REPLACED DFCS MODE CONT PANEL REF B737-900 AMM 22-11-34-400-801, OPS NML REF AMM 22-11-34-740-801. ACCOMPLISHED DFCS MCP LRU REPLACEMENT TEST, GRP BITE 32, ALL TEST PASSED. ACCOMPLISHED DFCS LAND VERIFY TEST, GRP BITE 49, ALL TEST PASSED REF AMM 22-11-00-700-801.
CONT CAB ZONE TEMP LIGHT ILLUMINATES ON MASTER RECALL AND RESETS. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 21-62 TASK 801. FOUND FLT DECK TRIM VALVE FAULT. REPLACED ZONE TRIM AIR MODULATING VALVE PER B737-900 AMM 21-61-21-401, OPERATIONAL CHECK GOOD. NO FAULTS FOUND. GROUND VERIFICATION SUCCESSFUL.
CONT CAB ZONE TEMP LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 842 "FLIGHT DECK TRIM VALVE" FAULT ACTIVE. REMOVED AND REPLACED FLIGHT DECK TRIM VALVE REF B737-900 AMM 21-61-21. PERFORMED BITE TEST, NO DEFECTS NOTED. LEAK CHECK GOOD.
CONT CABIN ZONE TEMP LT ILLUM ON PUSH BACK. GROUNDED - YES. RELEASED PER MEL 21-21G. FLIGHT DECK PRIMARY TEMP CONTROL INOPERATIVE. PERFORMED B737-900 FIM 21-62 TASK 801. BITE TEST PASSED. CONT CABIN LIGHT REMAIN EXTINGUISHED ON RECALL.
RT FWD WINDOW HEAT INDICATED OVERHEAT ON INTIAL POWER UP BEFORE START. GROUNDED-YES. EXECUTED QRH AND LIGHT DID NOT COME BACK ON WHEN TRIED AGAIN AFTER THREE MINUTES.
AFTER LANDING LEFT PACK LIGHT ILLUMINATED. AT GATE, LOUD NOISE OBSERVED FROM LEFT PACK. GROUNDED-YES. REPLACED THE LT PACK ACM, LEAK AND OPERATIONS CHECK GOOD, REF B737-900 AMM 21-51-04/401. REPAIR CONFIRMATION SUCCESSFUL, REF B737-900 FIM 21-53 TASK 820 AND 821.
LEFT PACK LIGHT ILLUMINATED AT CRUISE. QRH PROCEDURE COMPLETED AND UPON TRIP RESET THE LIGHT EXTINGUISHED. SHORTLY AFTERWARDS ON MASTER CAUTION RECALL, THE PACK LIGHT ILLUMINATED BUT EXTINGUISHED UPON MASTER CAUTION RESET. REILLUMINATED AT CRUISE AND PACK LIGHT STAYS ON NOW. GROUNDED-YES. REMOVED AND REPLACED RAM AIR EXHAUST ACTUATOR ON THE LEFT SIDE, REF B737-900 AMM 21-51-27-400-801.
HAD A LEFT PACK LIGHT ILLUMINATED AT CRUISE, RAN THE CHECKLIST & PUSHED THE TRIP RESET AND THE LIGHT EXTINGUISHED. RESET SEVERAL TIMES. GROUNDED-YES. REMOVED AND REPLACE LT PACK SMART RAM AIR ACUATOR AFT. OPERATIONS CHECKS GOOD, ACCOMPLISHED BITE CHECK, NO FAULTS NOTED.
LEFT PACK CAUTION LIGHT ON DURING CRUISE AT FL 360. RAN QRH AND PACK LIGHT WENT OFF, BUT ILLUMINATES W/RECALL ROUGHLY 10 MIN LATER RECEIVED LT PACK CAUTION LIGHT AGAIN. CAUTION CLEARED AGAIN AFTER QRH. GROUNDED-YES. VERIFIED FAULT, ACCOMPLISHED PACK TEMP CONT BITE NR 2 CONT NO FAULTS. NR 1 CONT SHOWS (SRADA) EXIT FAULT. ACCOMPLISHED BITE RESET. ACCOMPLISHED RAM AIR MODULATION SYSTEM TEST, TEST PASS. REACCOMPLISHED PACK TEMP CONT BITE TEST, TEST PASS NO FAULTS. RAN BOTH PACKS FOR 40 MIN, NO PACK LIGHT ILLUMINATES, REF B737-900 M/M 21-51-00-730-801, 36-00-00-860-801 & B737-900 FIM 21-62 TASK 801 & 21-62 TASK 853.
MULTIPLE INTERMITTENT SINGLE AND DUAL FMC FAILURES IN FLIGHT, LASTING BETWEEN :20-1:00. ALWAYS SELF-RESTORED PRIOR TO QRH COMPLETION. GROUNDED-YES. PERFORMED B737-900 FIM 34-61 TASK 801 AND FIM 34-61 TASK 806. FMC'S RESET OK FOR SERVICE.
CENTER TANK FUEL QUANTITY INDICATOR INTERMITTENTLY INOP AFTER REACHING ZERO LBS. GROUNDED-YES. ACCOMPLISHED A TANK AND COMPENSATOR UNITS TEST, REF B737-900 AMM 28-41-21-710-801. NO DEFECTS NOTED. PERFORMED RING-OUTS BETWEEN D11316 (CENTER TANK BUSSING PLUG) AND D485 (CEILING J-BOX IN WHEEL WELL), REF B737-900 WDM 28-41-11. NO DEFECTS NOTED. FQIS FAULT HISTORY SHOWS 14 INSTANCES OF FAULT 28-41309, PROCESSOR FAILED, AND FLIGHT DECK EFFECT OF CENTER QTY BLANK. REPLACED FQIS PROCESSOR, REF AMM 28-41-81/401. OP CHECKS GOOD.
NR 1 ENG IDG AIR/OIL HEAT EXCHANGER LEAKING. GROUNDED - YES. REPLACED THE NR 1 IDG OIL COOLER, LEAK CHECK GOOD, REF B737-900 AMM 24-11-21/401.
NR 2 ENGINE TREND DATA SHOWS A RISE IN LOW PRESSURE ROTOR VIBRATION LEVELS WITH EXCESSIVE SCATTER. GROUNDED - YES. REMOVED AND REPLACED 1EA SPACER AND REPLACED ALL FAN BLADE SHIMS. WORK ACCOMPLISHED PER T/C 78472010. VERIFIED SPINNER CONE WEIGHTS MATCH WHAT IS RECORDED ON A/C AAVM. ACCOMPLISHED STEP 6, VIBS WITHIN LIMITS.
AFTER LANDING, INTERMITTENT FMC FAILURE LEFTSIDE. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 836, STEPS A THRU E. GROUND VERIFICATION OF THE LEFT SIDE FMC COMPUTER SUCCESSFUL. FMC SWITCH BACK TO NORMAL POSITION. FMC IS AN ETOPS SIGNIFICANT SYSTEM.
LEFT PACK LIGHT ILLUMINATES ON RECALL, MASTER CAUTION RESET CLEARS PACK LIGHT. GROUNDED - YES. NR 1 PACK/ZONE TEMP CONTROLLER BITE SHOWS HARD FAIL "PACK SENSOR" FAULT. NR 2 PACK/ZONE TEMP CONTROLLER BITE SHOWS HARD FAIL "STBY PACK SENSOR" FAULT. FOUND LOOSE CONNECTOR (D3866) AT T471 LEFT PACK TEMP SENSOR. ACCOMPLISHED PACK TEMP SENSOR TEST REF AMM 21-51-52-720-801, BOTH PRIMARY & STBY SENSOR SHOW 538 DEGREE C. RECONNECTED D3866 CONNECTOR & RE-ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE (BOTH 1 & 2) REF AMM 21-61-00-700-806-002 & OPS CK LT PACK FOR 30-40 MIN.
LT PACK TEMP NOT INDICATING. GROUNDED - YES. REMOVED AND REPLACED LT PACK TEMP BULB. OPS CHECK GOOD IAW AMM TASKS 21-51-60-000-801/-400-801.
ON GROUND AFTER ENGINE START LEFT PACK LIGHT ILLUMINATED. PUSHING MASTER CAUTION LIGHT DID NOT EXTINGUISH THE PACK LIGHT PER QRH PROCEDURE. CONSULTED WITH DISPATCH AND MAINTENANCE. RETURNED TO GATE. GROUNDED - YES. CONFIRMED FAULT, PACK TRIPS AFTER 2-3 MIN OF OPERATION. TEMP CONTROLLER FAULTED LEFT TCV, REPLACED LEFT TCV REF B737-900 AMM 21-51-10-400-801 THROUGH STEP 3.E(7)G). FOUND ACM SEIZED, REPLACED ACM REF B737-900 AMM 21-51-04-802-002 THROUGH STEP 3.H.(7)(1). COMPLETED TEST/LEAK CHECK OF TCV REF B737-900 AMM 21-51-10-400-801 AND COMPLETED TEST/LEAK CHECK OF ACM REF B737-900 AMM 21-51-04-802. ACM AND TCV CHECK GOOD.
#2 ENGINE B FIRE LOOP INOP. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE FAN FIRE DETECTION HARNESS MW0316 REFERENCE B737-900 AMM 26-11-02-400-801 AND 26-11-02-000-801. NO HELP. FOUND TERMINAL ON MW0326 BROKEN AT RIGHT HAND CORE FIRE DETECTION ELEMENT. REMOVED AND REPLACED MW0326 REF B737-900 AMM 26-11-02-400-802 AND 26-11-02-000-802.
ON ENGINE START NR 2 ENGINE FAILED TO START. NR N1 START VALVE DIDN'T OPEN. REMOVED & REPLACED NR 2 ENGINE START VALVE IAW AMM 80-11-03.
PER SEAMC IN CONVERSATION WITH CREW, AFTER ENGINE START ON RECALL ZONE TEMP CAUTION LIGHT ON FOR TEMP CONTROL. GROUNDED - YES. CONFIRMED FAULT, "CONT CAB" ZONE LIGHT ILLUMINATES ON RECALL. NO. 2 PACK/ZONE TEMP CONTROLLER BITE 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.
ON APPROACH SELECTED FLAPS 1 THE FLAP INDICATOR SHOWED SYMETRICAL FLAP INDICIATION JUST BELOW FLAP 1 INDICATION WHEN SELECTING FLAPS 5 NO MOVEMENT OF FLAPS INDICATOR ACCOMPLISHED TRAILING EDGE FLAP DISAGREE CHECKLIST LANDED FLAPS 15. GROUNDED - YES. EMERGENCY DECLARED. PERFORMED FLAP SLAT ELECTRONIC BITE PROCEDURE FOUND MTX MSG NUMBER 27-52260 FOR TE FLAP SNSR R, DUE TO AC HISTORY PERFORMED PER B737-900 FIM 27-51 TASK 820 ALL PROCEDURES PASSED WITH NO DEFECTS FOUND AT THIS TIME CONSULTED W/ TECH SERVICES AND CONFIRMED FOR TE SENSOR CHANGE. R AND R RIGHT FLAP POSITION TRANSMITTER REF B737-900 AMM 27-58-01/401 TEST CHECKED GOOD.
LEFT SIDE WINDOW OVERHEAT ON TAKEOFF. ACCOMPLISHED QRH LIGHT RE-ILLUMINATED AFTER COOLING PERIOD. GROUNDED - YES. COULD NOT DUPLICATE ON GROUND. REF B737-900 AMM 30-41-11. DUE TO HISTORY REMOVED AND REPLACED, M322 LEFT-SIDE WHCU. OPS TEST NORMAL.
DUAL CDU FAIL W/ VTK ON BOTH MFD'S. A/T LIMITS MESSAGE ON UPPER DU. BOTH SYSTEMS RESTORED WITHOUT PILOT ACTION IN APPROX 30 SECONDS. DID NOT LOSE LNAV/VNAV. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 807. FAULT DEEMED TO BE INTERMITTIENT. NO HISTORY LAST 30 DAYS. OPS CHECKS GOOD. NO FAULTS NOTED.
AFTER AUTO PILOT "A" WAS ENGAGED SPEED TRIM FAIL LIGHT ILLUMINATED. AFTER SEVERAL SECONDS SPEED TRIM FAIL LIGHT EXTINGUISHED LESS THEN 60 SECONDS ELAPSED AND STAB OUT OF TRIM LIGHT ILLUMINATED. WE FOLLOWED PROCEDURE IN QRH. GROUNDED - YES. DIVERSION TIME 52 MINUTES. FOUND P18-1, C2 C/B OUT. PERFORMED GVI BEHIND PANEL AND RELEVANT WIRING. NO DEFECT NOTED. REF B737-900 AMM 20-60-01. REMOVED AND REINSTALLED CONNECTORS D700 AND D381 AFTER ACCOMPLISHING GVI AND CONNECTOR CLEANING. NO DEFECTS NOTED. REF B737-900 WDM 27-41-12-5. RESET P18-1, C2 C/B. PERFORMED STAB TRIM MOTOR TEST. TEST PASSED; FULL LENGTH OF TRAVEL OK. REF AMM 22-11-81 AND AMM 27-41-71.
LEFT SIDE WINDOW HEAT OVERHEAT CAME ON DURING CRUISE FAULT CODE 304 010 41. GROUNDED - YES. VISUAL INSPECTION OF PRIMARY AND SPARE SENSOR SHOWS DELAM. VERIFIED LH SIDE WINDOW RESISTANCE IAW B737-900 AMM 30-41-21. RESISTANCE READS 67.7 OHMS. MOVED WINDOW HEAT POWER LEAD W0420-1001-20 TO TERMINAL #2 ON TB5016 IAW AMM 56-12-11. REMOVED AND REPLACED LH SIDE WINDOW REF AMM 56-12-11. OPS AND LEAK CHECK GOOD.
DURIING CLIMBOUT AT FL280, EXPERIENCED SINGLE LEFT FMC FAILURE THAT CORRECTED ITSELF WITHIN 1 MINUTE. GROUNDED - YES. PERFORMED FMC BITE/IN FLT FAULTS TO CHECK FMC OPS STATUS. NO CURRENT FAULTS. R/H FMC DID RECORD LEFT FAIL ON LAST FLT LEG-NO OTHER FAULTS. NO RECORDED FAULTS USING ENG CODE 300/100 REF B737-900 FIM 34-61 TASK 801. PERFORMED FMC #1 OPERATIONAL CK REF B737-900 AMM 34-61-00. NO FAULTS FOUND-OPS TEST GOOD. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.
LEFT SIDE WINDOW OVERHEAT ON CLIMB OUT. RAN QRH PROCEDURES, LIGHT EXTINGUISHED. GROUNDED - YES. VERIFIED LEFT SIDE WINDOW HEAT WORKING NORMAL. PERFORMED WHCU BITE REF B737-900 FIM 30-41 TASK 801, NO CURRENT FAULTS LOGGED BUT NOTED WINDOW SENSOR FAULT ON HISTORY FAULT.
LEFT SIDE WINDOW HEAT SWITCH REMAINED ILLUMINATED AFTER ACCOMPLISHED QRH CHECKLIST. GROUNDED - YES. PERFORMED BITE CHECK ON WINDOW HEAT CONTROLLER UNIT, CYCLED WINDOW HEAT SWITCHES IAW B737-900 FIM 30-41 TASK 801 NO FAULTS NOTED.
MULTIPLE LEFT FMC FAILURES FOLLOWED BY A DUAL FMC FAILURE. RESTORED BY CHECKLIST. GROUNDED - YES. SYS LOGGED PGRM FAULT ACCOMPLISHED TASK 34-61-807 . SYS OPS OK.
WHILE PERFORMING GVI INSP ON NR 2 ENG FOUND MW0311 HARNESS CHAFFED THRU. REQ REPLACEMENT. GROUNDED - YES. REMOVED AND INSTALLED NEW MW0311 HARNESS. PERFORMED HARNESS TEST REF AMM 71-51-03 STEP H. ALL TESTS PASSED.
UPON LANDING FMC WENT BLANK AND NOT AVAILABLE ON MENU WHEN FMC CAME BACK, ALL INFO WAS LOST. GROUNDED - YES. RESET FMC SYSTEM PER B737-900 FIM 34-61 TASK 836. ETOPS GROUND VERIFICATION GOOD.
AT CRUISE CA FMC FAIL - CAME BACK ON BEFORE QRH COMPLETED. OPERATION NORMAL. GROUNDED - YES. PERFORMED FMC RESET PER FIM 34-61 TASK 836. ETOPS GROUND VERIFICATION NORMAL. A/C OK FOR SERVICE.
VTK/ MAP FLAGS LEFT FMC. QRH PROCEDURE COMPLETED. OPS NORMAL. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 34-61 TASK 801. LEFT FMC OPS CHECK GOOD. THIS CLEARS MEL 34-36J.
LNAV AND VNAV DISENGAGED ON TAKE-OFF ROLL. FLIGHT DIRECTORS DISAPPEARED FROM BOTH PRIMARY FLIGHT DISPLAYS. LNAV AND VNAV RE-ENGAGED WHEN RE-SELECTED ON CLIMBOUT WITH NO FURTHER PROBLEMS. THE EXACT PROBLEM HAPPENED ON TWO TAKE-OFFS IN A ROW. GROUNDED - YES. PERFORMED DFCS FLT FAULT REVIEW. FOUND FAULT MSG 22-11822 FMC DATA INV FROM LAST FLIGHT. PERFORMED B737-900 FIM 22-11 TASK 811, DFCS BITE AND FLIGHT DIRECTOR GROUP 12 OPS NRML - NO DEFECTS NOTED. ETOPS SIGNIF SYS, GROUND VERIFICATION SUCCESSFUL.
APU DETECTOR INOPERATIVE LIGHT. GROUNDED - YES. CONFIRMED FAULT, APU WILL NOT TEST. ACCOMPLISHED APU FIRE DETECTION LOOP RESISTANCE, SYSTEM TESTED IAW AMM 26-15-00-730-801 & RE-CONFIRMED APU TAIL PIPE OVERHEAT DETECTOR ASSY M1925 WAS DEFECTIVE, SHOWS 1.7M OHM INSTEAD OF 3.94K OHMS. REMOVED & REPLACED THE M1925 OVERHEAT DETECTOR ASSY IAW AMM 26-15-01. APU FIRE DETECTION OPS CHECKED NORMAL IAW AMM 26-15-00-710-801.
EMERGENCY LIGHT AT ROW 23 ON THE CEILING IS INOP. GROUNDED - YES. FOUND EMERGENCY AISLE LIGHT ASSEMBLY FAILED. REMOVED AND REPLACED EMERGENCY AISLE LIGHT ASSEMBLY AT ROW 23 IAW AMM 33-51-03. OPS CHECKS GOOD.
FIRE DETECTION FAULT NOTED ON PREFLIGHT. GROUNDED - YES. FOUND #2 ENGINE OVERHEAT LIGHT AND HANDLE LIGHT NOT ILLUMINATING DURING TEST. CYCLE A/C POWER REF AMM 20-60-99. A LOOP TEST NORMAL. B LOOP INOP. ENGINE APU FIRE BITE SHOWS #2 ENGINE LOOP B RIGHT CORE FAULT. FOUND BROKEN FIRE HARNESS AT HERMETICAL LUG FOR B SIDE. REMOVED AND REPLACED RIGHT CORE HARNESS IAW AMM 26-11-01. OPS CHECKS GOOD IAW AMM 26-11-00. ETOPS GROUND VERIFICATION GOOD.
IN CRUISE CAPT ND DISPLAYED VTK, FOLLOWED BY MAP, LOSS OF LNAV AND VNAV. RAN QRH FOR LOSS OF LEFT FMC. GROUNDED - YES. ACCOMPLISHED FMC BITE. LH FMC LOGGED "PGM FAULT" LAST LEG. ACCOMPLISHED B737-900 FIM 34-61 TASK 807, LH FMC OPS NORMAL REF SAME.
COURSE WINDOW ON CAPTS SIDE LED DISPLAY NEEDS REPLACING. GROUNDED - YES. REMOVED & REPLACED MODE CONTROL PANEL REF AMM 22-11-34 9 C/B OPEN & CLOSED, INSTALLATION TEST PASSED.
CRACK FOUND ON CABIN FLOOR SUPPORT, APPROXIMATELY 2.5 INCHES LONG AT FLOOR 221EF, (STREAMER ATTACHED AND CIRCLED IN RED). GROUNDED - YES. REMOVED INTERCOSTAL IAW B737-900 SRM 51-40-02. LOCATED, DRILLED AND INSTALLED NEW INTERCOSTAL IAW BOEING DWG 141A5400 REV-.
EMERGENCY LIGHT BATTERY PACKS M1675 AND M1673 REQUIRE REPLACEMENT. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACKS M1675 AND M1673 IAW AMM 33-51-06. OPS CHECKS GOOD IAW AMM 33-51-00.
AFTER TOUCHDOWN LEFT FMC INTERMITTENTLY "VTK". GROUNDED - YES. FMC SHOWS PGM FAULT. ACCOMPLISHED FIM 34-61 TASK 807. OPS CHECK NORMAL.
CLIMBING OUT PHX, LEVEL OFF AT 320FL DISPLAY OF VTK FOLLOWED BY MAP FAILURE FLAG ON RT FMC F/O'S NAV DISPLAY. SINGLE FMC OPERATION ON SCRATCHPAD. PLACED FMC SOURCE SELECT BOTH ON LEFT. GROUNDED - YES. FMC LOGGED 1 FAIL - RESET - OPS OK.
NR 2 COWL ENG ANTI ICE VALVE FAILED IN CLOSED POSITION WHEN SELECTED ON. (STAYED BRIGHT BLUE) SELECTED ON AF FL 240 SAT - 31 C, REFERENCED QRH 3.2 "ENGINE COWL OPEN OR TAI INDICATION". GROUNDED - YES. REPLACED TAI VALVE ON NR 2 ENGINE PER AMM 30-21-11. OPS CHECKED GOOD AND LEAK CHECK GOOD.
R ENG ANTI-ICE VALVE STUCK IN CLOSED POSITION WITH SWITCH ON @ 5000 FT CYCLED SWITCH THEN WORKED PROPERLY. GROUNDED - YES. PERFORMED OPS TEST OF R/H ENGINE ANTI-ICE VALVE NO FAULTS WERE FOUND, OK FOR CONT SVC REF B737-900 AMM 30-21-00.
RT NR 2 RAM AIR DOOR FULL OPEN REMAINED ILLUMINATED DURING FLT. ALL CB'S CLOSED. GROUNDED - YES. ACCOMPLISHED FIM 21-62-801. EXIT SRADA FAULT LIGHT ILLUMINATED. REPLACED RT RAM AIR EXHAUST ACTUATOR PER AMM 21-51-27. OPS CHECK GOOD.
ON WALK AROUND FOUND THE NR 2 IDG OIL LEVEL ALMOST OUT OF SIGHT GLASS. GROUNDED - YES. CLEANED AREA UNDER FAN COWL, IDG OIL LINES AND FITTINGS. RAN THE NR 2 ENGINE FOR 5 MINS AND FOUND TWO OIL LEAKS AT "OIL IN" UNION AT THE IDG AIR/OIL COOLER AND IDG PLUMBING LINES. RE-TORQUED FITTINGS PER AMM 24-11-21-400-801 AND POWERPLANT BUILD UP MANUAL 71-00-02 FIG 21-1 PG 20-21 ITEM D. RAN THE NR 2 ENGINE FOR 10 MIN, NO LEAKS NOTED. SERVICED THE NR 2 IDG TO FULL BEFORE ENGINE RUN IAW AMM 12-13-21-600-801.
DURING TAXI TO GATE, RIGHT FMC FAILED MULTIPLE TIMES. GROUNDED - YES. ACCOMPLISHED FMCS OPERATIONAL TEST, AMM TASK 34-61-00-710-801. TEST PASSED. NO HISTORY. GROUND VERIFICATION SUCCESSFUL.
CA FMC FAILED A FEW TIMES, COMES BACK ONLINE EVENTUALLY BY ITSELF. GROUNDED - YES. LEFT FMC SHOWED PGM FAULT. PERFORMED FIM 34-61 TASK 807 GRD VERIFICATION SUCCESSFUL.
RIGHT "RAM DOOR FULL OPEN" LIGHT REMAINS ON IN CRUISE. GROUNDED - YES. PERFORMED PACK TEMPERATURE CONTROL BITE PROCEDURE ON BOTH PZTCS REF B737-900 FIM 21-62 TASK 801. NO CURRENT OR PREVIOUS FLIGHT FAULTS LOGGED. ALSO, ACCOMPLISHED RAM AIR SYSTEM OPERATIONAL TEST REF B737-900 AMM 21-51-00-730-801. NO RED FAULT LIGHTS OBSERVED ON INLET AND EXIT SRADAS. TEST- OPS. NORMAL. NO FAULTS NOTED.
RIGHT PACK LIGHT ILLUMINATES WITH RECALL AND EXTINGUISHES WITH RESET. GROUNDED - YES. RELEASED PER MEL 21-32B. RIGHT HAND PACK PRIMARY TEMPERATURE CONTROLLER SYSTEM INOP. PERFORMED PACK / ZONE TEMP CONTROL BITE TEST REF AMM 21-61-00. NO FAULT FOUND.
FOLLOW-UP TO NR 2 IDG CONTINUED FREQUENT SERVICING. REPLACE IDG FOR BENCH CHECK. GROUNDED - YES. REMOVED AND REPLACED NR 2 IDG PER AMM TASK 24-11-11 ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION TEST COMPLETED SUCCESSFULLY.
ENROUTE PHASE OF FLIGHT, VTK DISPLAYED ON CAPTAINS MAP FOLLOWED BY BOTH FMC'S BLANKED. FOLLOWED CHECKLIST WHICH HAD US PUT BOTH FMC'S ON THE "RIGHT". LEFT FMC RESTORED TEMPORARILY, BUT THEN FAILED AGAIN. WE THEN LEFT BOTH FMCS ON "RIGHT" SIDE. GROUNDED - YES. PERFORMED FIM 34-61 TASK 801 NO CURRENT FAULTS. FOUND TO BE ON INTERMITTENT FAULT LT FMC. FMC SWITCH BACK IN NORMAL POSITION.
AFTER STARTING BOTH ENGINES RECALL WAS INITIATED NO LIGHT ILLUMINATED. DURING TAXI RIGHT PACK LIGHT ILLUMINATED WITH NO OTHER LIGHTS. PACK LIGHT WOULD NOT RESET. QRH WAS ACCOMPLISHED. DURING TAXI BACK TO GATE PACK LIGHT WOULD INTERMITTENTLY RESET. GROUNDED - YES. ACCOMPLISHED ZONE TEMP CONT BITE REF AMM 21-61-00, RESET CONTROLLER. NO PREV FAULTS. PERFORMED CABIN TEMP CONT OPS TEST REF AMM 21-61-00, INDICATIONS FOLLOWED CONT SETTINGS. SUSPECT PACK LIGHT CAPSULE, REPLACED BULBS. SYS OPS NORMAL AT THIS TIME.
RIGHT PACK LIGHT ILLUMINATED ON RECALL. GROUNDED - YES. ACCOMPLISHED FIM 21-52 TASK 817 AND ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST PER AMM 21-61-00-700-806-002. ZONE TEMP CONTROLLER FAULT RESET NO PREV FLIGHT FAULT.
SECOND OCCURRENCE, AFTER START ON RECALL BOTH BAT DISCHARGE AND ELEC LIGHT WERE ILLUMINATED. BEFORE FIRST CHECKLIST WAS COMPLETED BAT DISCHARGE LIGHT WENT OUT, BUT ELEC LIGHT STAYED ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED MAIN BATTERY CHARGER OPS CHECK GOOD REF AMM 24-31-21.
AFTER START ON RECALL BOTH BAT DISCHARGE AND ELEC LIGHT WERE ILLUMINATED. BEFORE FIRST CHECKLIST WAS COMPLETED BAT DISCHARGE LIGHT WENT OUT, BUT ELEC LIGHT STAYED ILLUMINATED. GROUNDED - YES. ACCOMPLISHED FIM 24-31-801 BATTERY CHARGER INOP FAULT CLEARED FAULT ACCOMPLISHED BITE CHECK FAULTS CLEARED.
PER RELEASE, AUTOLAND REQUESTED. AUTOLAND CONSIDERED UNSUCCESSFUL DUE TO LANDING 50 FEET RIGHT OF CENTERLINE. GROUNDED - YES. PERFORMED AMM 22-00-01-730-807, FFR SHOWED NO FAULTS LAST FLIGHT ON A OR B, LAND VERIFY TEST NML, REF AMM 22-11-00/201.
ENGINE NR 2 AFT TOP OTBD EGT RAIL HARNESS HAS FRAYED BRAIDING. GROUNDED - YES. REPLACED OUTBOARD UPPER FIRE LOOP HARNESS. ALL OPS NML. REF MM 26-11-02.
APU SHROUD / HYDRAULIC DRAIN MAST CRACKED. GROUNDED - YES. REMOVED AND REPLACED THE APU SHROUD / HYDRAULIC DRAIN MAST REF AMM 28-25-07/401.
THE PRESSURIZATION AUTO FAIL LIGHT CAME ON IN FLIGHT. RAN QRH AND THE LIGHT EXTINGUISHED, WHEN ALTERNATE WAS SELECTED. ACFT GROUNDED. ACCOMPLISHED FIM 21-31, TASK 801 DCPC BITE, NR 2 FAULTED OFV LRU FAILED, NR 1 NO FAULTS. DUE TO ACFT HISTORY, REMOVED AND REPLACED THE OUTFLOW VALVE ASSY IAW AMM 21-31-03. INSTALL TEST FAILED. NR 1 PRESSURE CONTROLLER SHOWS OFV LRU FAIL FAULT CODE 009 AS ACTIVE FAULT. COMPLETED FIM 21-31, TASK 802. REMOVED AND REPLACED THE OUTFLOW VALVE. OPS CHECKED NORMAL. NO FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.
DURING CLIMB OUT, RECEIVED AN AUTO FAIL LIGHT FOR THE PRESSURIZATION SYSTEM, PERFORMED QRH, WENT TO ALTERNATE MODE, SYSTEM OPERATED NORMALLY. ACFT GROUNDED. REMOVED AND REPLACED THE AFT OUTFLOW VALVE ASSEMBLY IAW AMM 21-31-03. SYSTEM GROUND TESTED GOOD. AUTO FAIL LIGHT DID NOT RETURN, PRESSURE CONTROLLER NR 1 AND PRESSURE CONTROLLER NR 2, NO FAULTS RECORDED.
DURING CRUISE, FL370, THE NR 2 DRIVE LIGHT ILLUMINATED. STARTED APU, CONNECTED TO THE NR 2 GENERATOR IAW QRH. SYSTEMS OPERATED NORMALLY ON APU, NR 1 GENERATOR POWER. ACFT GROUNDED. REMOVED & REPLACED THE NR 2 IDG IAW AMM 24-11-11. COMPLIED WITH THE IDG UNSCHEDULED REMOVAL FOR CAUSE TASK IAW AMM 24-11-11-080-801. FOUND THE FILTER TO BE CONTAMINATED. COMPLIED WITH A FLUSH OF PLUMBING LINES IAW AMM 24-11-41, REMOVED AND REPLACED THE IDG AIR-OIL COOLER IAW AMM 24-11-21, AND REMOVED AND REPLACED IDG OIL COOLER IAW AMM 73-11-06. OPS CHECKED GOOD. LEAK CHECKED GOOD.
DURING CLIMB OUT AT APPROX 17,000FT "AUTO FAIL" LIGHT ILLUMINATED, SELECTED "ALTN" PER QRH. SYSTEM APPEARS TO OPERATE "NORMAL" IN "ALTN" MODE. GROUNDED - YES. PERFORMED FIM 21-31 TASK 827, DCPC BITE PER FIM 21-31 TASK 801, FOUND OFV FAULT, CLEARED FAULT ON DCPC AND SYSTEM CHECKED NORMAL. AUTO FAIL LIGHT EXTINGUISHED, A/C OK FOR SERVICE. TSR ISSUED. REMOVED AFT OUT FLOW VALVE ASSY REF MM 21-31-03-000-801. INSTALLED NEW AFT OUTFLOW VALVE REF MM 21-31-03-400-801 STEP 3 F (I) THROUGH (11). INSTALL TEST OF S/N 9719709 FAILED. NR 1 PRESSURE CONTROLLER SHOWS OFV LRU FAIL FAULT CODE 009 AS ACTIVE FAULT. COMPLETED FIM TASK 21-31 TASK 802. REMOVED S/N 9719709 AND INSTALLED S/N 0012501 REF AMM 21-31-03-400-801 OPS CHECKS NORMAL. NO FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.
AUTO PRESSURIZATION FAIL ILLUMINATED DURING CLIMBOUT. ALT MODE LIGHT ILLUMINATED. SWITCHED TO ALT MODE AND AUTO FAIL LIGHT WENT OUT. ACFT GROUNDED. VERIFIED DIGITAL CABIN PRESSURE CONTROLLER NR 1 SHOWS THE FAULT OFV LRU FAIL. NR 2 SHOWS SYSTEM OK. ACCOMPLISHED DCPC BITE PROCEDURE BITE TEST PASSED, NO CURRENT FAULTS NOW. FAULT WAS INTERMITTENT. BOTH CONTROLLERS SHOW SYSTEM OK IAW FIM 21-31, TASK 802.
DURING T/C 78472000 ACCOMPLISHMENT, FOUND THE NR 7 FAN DUCT PANEL WAS LOOSE. ACFT GROUNDED. TIGHTENED THE FASTENERS IAW AMM 72-23-07. THE FAN DUCT PANEL WAS SECURE.
DURING FLT AT 34000 FEET, THE CAPTAIN`S OXYGEN MASK HOSE DISCONNECTED. ACFT GROUNDED. REMOVED AND REPLACED THE OXYGEN MASK AMM 35-12-85. OPS NORMAL.
AUTO FAIL PRESSURIZATION LIGHT ILLUMINATED. ACFT GROUNDED. PLACED SELECTOR SWITCH FROM AUTO TO MANUAL. FAULT RESET IAW AMM 21-31-00. SYSTEM CHECKED NORMAL.
VTK MESSAGE ON CAPTAIN'S MFD. ACFT GROUNDED. REBOOTED THE A/C POWER. ALL DISPLAYS NORMAL IAW AMM 34-61-00. OK FOR SERVICE.
FMC MESSAGE VTRK DISAGREE FOR ABOUT 5 SECONDS. CLEARED ITSELF. NO OTHER UNUSUAL INDICATIONS. MESSAGE ON BOTH SCRATCHPADS. ACFT GROUNDED.
DURING CRUISE, AT FL340, THE LEFT FMC FAILED FOR ABOUT 1 OR 2 MINUTES. LEFT ND HAD VTK AND NO MAP. BOTH LEFT AND RIGHT MCDUS HAD NO FMC PROMPT. LEFT FMC RETURNED DURING START OF THE QRH PROCEDURE WITHOUT ANY ACTION TAKEN. ACFT GROUNDED. THE NR 1 FMC LOGGED ONE FAULT, RESET OPS OK.
AUTOFAIL CAUTION LIGHT ILLUMINATED THROUGH 6000 FT ACCOMPLISHED QRH AUTO FAIL CAUTION LIGHT EXTINGUISHED IN ALTN MODE. PRESSURIZATION WAS NORMAL. ACFT GROUNDED. VERIFIED AUTO FAIL LIGHT ON. SWITCH TO AUTO MOVED SWITCH MOMENTARILY TO MANUAL POSITION THEN BACK TO AUTO. AUTO FAIL LIGHT REMAINS EXTINGUISHED WITH SELECTOR IN AUTO POSITION. FAULT HAS BEEN CORRECTED CONTROLLER OPS NORMALLY IAW FIM 21-31 TASK 801.
FIRST OFFICER`S RADAR MODE CONTROLLER, CONTROLS BOTH RADARS. CAPTAIN SIDE WILL NOT SELECT INDEPENDENTLY. ACFT GROUNDED. UNABLE TO CONFIRM FAULT. REPLACED THE WEATHER RADAR CONTROL PANEL IAW AMM 34-43-91, OPS CHECKED NORMAL.
MATENANCE BLUE LIGHT ON WITH OIL LEVEL FOUND FULL. ACFT GROUNDED. REVIEWED MAINTENANCE HISTORY ON APU BITE, NO FAULTS ASSOCIATED WITH DMM. REMOVED & REPLACED THE APU ECU IAW AMM 49-61-12. GROUND VERIFICATION TEST PASSED.
LEFT FMC FAILED. ACFT GROUNDED. ON A/C POWER UP AND FMC SWITCH TO NORMAL POSITION, PERFORMED FIM 34-61 / 836. OPS CHECKED GOOD. INTERMITTENT FAULT IAW FIM. NO CIRCUIT BREAKERS WERE CYCLED.
RT PACK RAM DOOR FULL OPEN LIGHT STAYED ON ENTIRE FLIGHT. ACFT GROUNDED. COULD NOT DUPLICATE, BOTH ZONE TEMP CONTROLLERS BITE CHECKED GOOD, BOTH RT RAM AIR ACTUATORS FWD & AFT HAVE GREEN LIGHTS, FIM 21-51 / 803 SYS OPS CHECKED NORMAL, FULL OPEN LIGHT FUNCTIONS PROPERLY.
RIGHT MAIN FUEL QTY BLANKED BRIEFLY AT GATE, ACFT GROUNDED. REMOVED AND REPLACED THE FUEL QUANTITY PROCESSOR UNIT IAW AMM 28-41-81, GROUND VERIFICATION TEST PASSED. ACCOMPLISHED BITE CHECK, LIGHTS STAY ON, NO FAULT NOTED. ACFT OK FOR SERVICE IAW FIM 28-41TASK 809.
APU MAINT LIGHT ILLUMINATED. ACFT GROUNDED. CHECKED THE OIL LEVEL AND FOUND TO BE FULL. BITE CHECKED THE APU IAW FIM 49-60-801. NO FAULTS FOUND. GROUND VERIFICATION OF APU GOOD. OK FOR SERVICE.
APU MAINT LIGHT ILLUMINATED AT GATE. GROUNDED - YES. INTERMITTENT FAULT, RESTARTED APU. APU MAINT LIGHT TURNED OFF. OK BACK TO SERVICE.
FIRST CLASS EMERGENCY LIGHTS RAMDOMLY FLICKER ON AND OFF IN FLIGHT. ACFT GROUNDED. REMOVED AND REPLACED THE BATTERY PACK IAW WDM 33-51-12 AND AMM 33-51-06. PERFORMED OPS TESTED. SYS CHECKED NORMAL.
APU WOULD NOT START. ACFT GROUNDED. PERFORMED APU BITE PROCEDURES IAW FIM 49-60 TASK 801, FOUND MAINT MESSAGE 49-41012 LOGGED, NO APU ROTATION. PERFORMED TAIL CONE GVI, NO DEFECTS NOTED. REMOVED AND REPLACED THE APU STARTER GENERATOR IAW AMM 49-41-21. APU OPS SATISFACTORY.
WHEN SELECTING NR 2 ENGINE STARTER SWITCH TO GROUND. SWTCH WOULD SPRING BACK TO OFF. GROUNDED - YES. CHECKED AND RELEASED PER MEL 80-3B. REMOVED #2 ENGINE STARTER PER B737-900 AMM 80-11-01 AND INSTALLED PER AMM 80-11-01. R&R #2 ENGINE START VALVE PER AMM 80-11-03. ALL OPS CHECKS AND LEAK CHECKS GOOD AT THIS TIME. #2 START SWITCH TO GROUND LATCHED AND ENGINE STARTS NORMAL. A/C OK FOR SERVICE. THIS CLEARS MEL 80-3B.
WHILE PERFORMING T/C 78273000 FOUND FAULT 73-10341 & 73-30351 FMV SIGNAL OUT OF RANGE & FMV SIGNALS DISAGREE. GROUNDED - YES. PERFORMED B737-900 FIM 73-25 TASK 804. FAILED RESISTANCE TEST STEPS (G)(3) TABLE 209, PINS 18 TO 37 READS 206 OHMS ON RECEPTACLE DP0501 (CH A) AND STEPS (G)(5) TABLE 211 PINS "A" TO "B" READS 218 OHMS ON CONNECTOR DP0505. REMOVED AND REPLACED #1 ENG HMU IAW ASA MTX TASKCARD N8473000 FOR REMOVAL AND ASA MTX TASKCARD N8473001 FOR INSTALLATION. TEST 3A LK CK GOOD TEST 12 AND 13 OPS CK GOOD NO FAULTS.
WHILE PERFORMING T/C 78273000, THE NR 1 ENGINE SHOWED A SHORT TERM FAULT CODE 73-10341. THE FMV POSITION SIGNAL IS OUT OF RANGE. ACFT GROUNDED. ACCOMPLISHED FIM 73-25 TASKS 803/804, INSPECTION DP0501 AND DP0601 ARE SECURED, J5 AND J6 HARNESSES INSPECTION, CHECKED NORMAL. ACTUATOR TESTED. NO MAINT MESSAGES IAW AMM 71-00-00. EEC BITE IAW FIM 73-00 TSK 801, NO FAULTS.
LEFT FMC FAILED WITH VTK FLAG AFTER LANDING. GROUNDED - YES. CONFIRMED. A/C CHECKED & RELEASED PER MEL 34-36J LT FMC INOP. ACCOMPLISHED FIM 34-61 TASK 807. OPS CK NORMAL. THIS IS A FLIGHT OPERATIONS NORMAL-YET-NUISANCE CONDITION. GROUND VERIFICATION SUCCESSFUL. THIS CLEARS MEL 34-36J.
WHILE ACCOMPLISHING A NR 1 ENGINE INLET INSPECTION, FOUND A WORN DUCT ATTACH LINK ABOVE HIGH PRESSURE STAGE VALVE. ACFT GROUNDED. REMOVED AND REPLACED THE INLET DUCT ATTACH LINK IAW AMM 36-11-01.
WHILE ACCOMPLISHING A NR 1 ENGINE INLET INSPECTION, FOUND THE NR 1 FAN DUCT PANEL WITH A PULLED SCREWS. ACFT GROUNDED.
AUTOLAND, LANDED LEFT OF CENTER LINE. NOT HGS MODE SUCCESSFUL. ACFT GROUNDED. DFCS BITE CURRENT STATUS TEST PASSED WITH NO FAULTS. ACCOMPLISHED FIM 22-11 TASK 825, LAND VERIFY TEST IAW AMM 22-11-00-700-801. ALL TESTS PASSED.
ON RECALL, THE CABIN ZONE TEMP ANNUNCIATOR LIGHT ILLUMINATED. EXTINGUISHED ON MASTER CAUTION RESET. QRH PROCEDURE ACCOMPLISHED, NO FURTHER ACTION REQUIRED. ACFT GROUNDED.
AFTER ENGINE START WITH PRESSURIZATION PANEL SET TO NORMAL, BOTH PACKS AND BOTH BLEEDS ON, FMC POWER SETTINGS FOR TAKE OFF SHOWED 93.0/92.2. ACFT GROUNDED. WHILE TROUBLESHOOTING, FOUND THE LT PACK WILL NOT SHOW OPEN ON FMC CDU DISCRETE PG. RT PACK OK. GAINED ACCESS TO THE LT PACK. ACCOMPLISHED DVI, FOUND CONNECTOR D488 VERY LOOSE. ACCOMPLISHED INSPECTION OF CONNECTOR & CONNECTED D488 TO V18. ACCOMPLISHED DISCRETE CHECKS AGAIN, NOW ALL SHOW SWITCH POSITIONS, ALL PASSED IAW AMM 34-61-00-730-001. ACCOMPLISHED LT FLOW CONTROL & SHUTOFF VALVE INSTALLATION TEST, TEST PASSED . CLOSED LT PACK AREA IAW AMM 21-51-01-860-49-002, RAN BOTH ENGINES & CHECKED THRUST TARGETS BETWEEN BOTH ENGINES ARE NOW SAME IAW FIM 34-61 TASK 839.
LEFT PACK LIGHT ILLUMINATED DURING CRUISE. PACK RESET, LIGHT EXTINGUISHED. LIGHT RE- ILLUMINATED, ISOLATION VALVE CLOSED, LEFT PACK SWITCH OFF (QRH). GROUNDED - YES. REMOVED AND REPLACED L/H EXIT SRADA PER B737-900 AMM 21-51-27. OPS CHECKS GOOD. PERFORMED BITE CHECK ON BOTH PACK TEMP CONTROLLERS. NO MORE FAULT LIGHT FOR SRADA EXIT ACTUATOR. OPERATED APU AND PACKS. NO PACK LIGHT. SYSTEM OPERATES NORMAL .
LEFT PACK LIGHT ILLUMINATED DURING AFTER START ON THE MASTER RECALL. THE PACK LIGHT EXTINGUSHED WITH MASTER RESET. ACFT GROUNDED. PERFORMED BITE ON LEFT PACK CONTROLLER FOUND THE EXIT FAULT LIGHT ON, PERFORMED FIM 21-62 TASK 853, STEPS A-E, AND NO FURTHER DEFECTS FOUND.
DURING AFTER START CHECKLIST, THE LEFT PACK LIGHT ILLUMINATED DURING RECALL AND EXTINGUISHED WHEN MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST IAW AMM 21-61-00-700-806-002, GREEN GO LIGHT ILLUMINATED AND NO FAULTS FOUND.
NR 2 FMC INOPERATIVE. FMC CAUTION LIGHT ILLUMINATED ON AUTOPILOT ANNUNCIATOR PANEL THEN RETURNS TO NORMAL APPROXIMATELY EVERY 30 SECONDS. ACFT GROUNDED. ATTEMPTED TO RESET NR 2 FMC, NO HELP. REMOVED AND REPLACED THE NR 2 FMC. REMOVED NEW FMC AND INSTALLED THE ORIGINAL UNIT IAW AMM 34-61-02. ON INSTALLATION OF ORIGINAL UNIT NR 2 FMC OPERATES NORMALLY. ALL SOFTWARE CHECKS EFFECTIVE. ALL TESTS GOOD.
AFTER ENGINE START, LEFT PACK LIGHT ILLUMINATED. PACK LIGHT EXTINGUISHED AFTER RESETTING MASTER CAUTION. ACFT GROUNDED.
AFTER LEVEL OFF AT FL 340, LEFT PACK LIGHT ILLUMINATED. PACK LIGHT DID NOT EXTINGUISH AFTER RESETTING MASTER CAUTION. PERFORMED QRH PROCEDURES, CABIN ALTITUDE STABLE ON RIGHT PACK. ACFT GROUNDED. REMOVED AND REPLACED LT RAM AIR INLET ACTUATOR IAW AMM 21-51-21. GROUND VERIFICATION OPS CHECKED GOOD. SYSTEM OPERATES NORMAL. NO FAULTS.
APU DETECTOR INOPERATIVE, ILLUMINATED IN CRUISE AT 3500' WITH THE APU NOT RUNNING SAT -48 DEG. CEL. ACFT GROUNDED. IAW WDM 26-11-31, AMM 26-15-01-000-802. ACCOMPLISHED ALT DEACTIVATION REF CH 5 TABLE 3 ITEM 1. ACCOMPLISHED RESISTANCE CHECKS OF APU FIRE DETECTORS. DETECTORS M1755, M1756 ARE WITHIN LIMITS. DETECTOR M1925 IS OUT OF LIMITS. REMOVED AND REPLACED M1925 DETECTOR.
LEFT A/C PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL, EXTINGUISHES UPON MC RESET. ACFT GROUNDED. REMOVED AND REPLACED THE LT PACK TRIM AIR MODULATION VALVE ASSY IAW AMM 21-61-21, AND 21-61-00. OPS BITES CHECKED GOOD.
LEFT PACK LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. PERFORMED ZONE TEMP CONTROL BITE NR 1 IAW AMM 21-61-00-700-806-002. ON BITE FOUND EXIT LIGHT ILLUMINATE, NO HISTORY OF FAULT ON CONTROLLER, VERIFY PASSED. PERFORMED AMM 21-51-21-710-002. RESET EXIT ACTUATOR INTERNAL FAULTS. SIX CIRCUIT BREAKERS OPENED FOR 10 SECONDS AND RESET. PERFORMED PACK OPS CHECKED LEFT PACK. NO FAULTS.
AFT PAX CABIN VERY HOT DESPITE TEMP GAUGE SHOWING SAME 23C AS FWD CABIN. IT TAKES AFT CABIN CONTROLLER FULL COLD TO MANAGE AFT CABIN PAX. DUCT PRESSURE NORMAL. ACFT GROUNDED. FOUND THE AFT CABIN TEMP SENSOR FAN NOT WORKING. DROPPED FAN ACCESS PANEL AND FOUND FAN DISCONNECTED. CONNECTED THE FAN & OPS CHECKED NORMAL IAW AMM 21-61-11. BITE OF BOTH CONTROLLERS, OPS NORMAL.
AFT CABIN TEMP CONTROL INOPERATIVE. TEMP RUNS FULL COLD THROUGH 50+C IN ALL POSITIONS (OFF, AUTO, MANUAL) TRIM AIR HAS NO EFFECT ON CONTROL. SET TO AVERAGE 10*C FOR PAX. . ACFT GROUNDED. PERFORMED FIM 21-61 TASK 801, CABIN TEMP CONTROL BITE PROCEDURE. FOUND RED LIGHT CAME ON NR 2 INLET. FURTHER PERFORMED FIM 21-62 TASK 852. THIS CLEARS TO RESET PZCT TO GREEN. RUN APU & CHECKED TEMP. ON AFT PAX CABIN HOT TEMP CAME TO NORMAL.
LEFT PACK LIGHT ILLUMINATED, WILL NOT RESET. ACFT GROUNDED. OPERATED LEFT PACK WITH APU AS PNEUMATIC SOURCE, AFTER SEVERAL MINUTES, THE LEFT PACK TRIPS OFF, LT PACK TEMP INDICATOR CLIMBS TO 100 DEG C. PACK TRIP RESETS WHEN RESET BUTTON PUSHED. ACCOMPLISHED INITIAL EVALUATION OF B737-900 FIM 21-53 TASK 811 STEP E, NO AIRFLOW AT EXHAUST DUCT OUTLET NOTED.ACCOMPLISHED ALTERNATE DEACTIVATION PER B737-900 AMM 5-07-01 TABLE 3 ITEM 1. ACCOMPLISHED FIM 21-53-TASK 811 COMPLETE UP TO STEP F.3.(A) FOUND LT ACM SEIZED. ACM FAN IMPELLERS FOUND DAMAGED. REMOVED & REPLACED ACM IAW AMM 21-51-04-400-802-002. OPS AND LEAK CHECKED GOOD IAW AMM 21-51-04-400-802-002, STEPS I AND J. ACCOMPLISHED AIR CONDITIONING PACKS RESTORATION IAW AMM 21-00-00-040-804, AND 21-00-00-440-801. REINSTALLED FWD CARGO BAY FWD BULKHEAD LINER.
WHILE ACCOMPLISHING APU GVI, FOUND DELTA P INDICATOR FOR OIL FILTER POPPED. ACFT GROUNDED. REMOVED AND REPLACED LUBE FILTER ELEMENT AND RESET OIL FILTER INDICATOR PIN IAW AMM 49-91-13. APU CHIP DETECTOR HAD NO METAL OR OTHER DEBRIS. OPERATED APU, NO LEAKS NOTED, AND OIL FILTER INDICATOR DID NOT POP AGAIN.
LEFT PACK LIGHT ON AFTER LANDING SINGLE CHANNEL. ACFT GROUNDED. ACCOMPLISHED SYSTEM TROUBLESHOOTING IAW AMM 21-61-00, FOUND EXIT ACTUATOR FAULT ON PREVIOUS FLT. SYSTEM CLEARED AND OPS NORMAL.
R PACK RAM AIR LIGHT ON DURING ENTIRE CRUISE PORTION OF FLIGHT. GROUNDED - YES. ACCOMP PACK TEMP CONT BITE PROCEDURE BOTH SHOW NO FAULTS & NO LAST FLT FAULTS. ACCESSED RT STRAD VERIFIED GREEN IND LIGHT IS ON NO FAULTS NOTED. CLOSED ACCESS PNL. PUT A/C IN AIR MODE & VERIFIED RAM AIR DOOR CLOSES & BLUE IND IS OFF. RETURNED TO GROUND MODE RAM AIR DOOR OPENS & IND BLUE LIGHT IS ON. REACCOMP BITE PROCEDURE STILL NO FAULTS. REF FIM 21-51 TASK 803 STEPS G1 THROUGH 11E.
LEFT FMC FAILED IN FLIGHT. ACFT GROUNDED. CYCLED AC POWER. LT FMC OPS NORMAL.
RIGHT PACK LIGHT ILLUMINATED AFTER TAKEOFF. EXTINGUISHED WITH RESET. ACFT GROUNDED. ACCOMPLISHED RIGHT PACK TEMP CONTROLLER BITE PROCEDURES IAW AMM 21-51-00 AND VERIFIED THERE WAS ONLY RAM AIR ACTUATOR FAULT, THERE WAS NO DUAL CHANNEL FAULT OR ANY OTHER FAULT. BOTH PACKS TEST OPS CHECK GOOD,
ON TAXI IN, LT ENGINE INDICATED OIL FILTER BYPASS. GROUNDED - YES. REMOVED AND REPLACED NR 1 ENGINE SCAVENGE OIL FILTER CLOGGING TRANSMITTER IN REF TO AMM 79-21-07 & FIM 79-05 TASK 817. PERFORMED IDLE- POWER LEAK CHECKED AMM 71-00-00-700-801-F00. NO FAULTS NOTED. THIS CLEARED MEL 79-2C.
RIGHT HAND RAM DOOR FULL OPEN LIGHT ILLUMINATED FOR ENTIRE FLIGHT. GROUNDED - YES. REMOVED AND REPLACED RT RAM AIR INLET ACTUATOR REF AMM 21-51-21. OPS CK AND BITE TEST GOOD. CLEARED MEL 21-5D. REVERSED S/P, AND STOWED SRADA KIT AND HARDWARES.
WHILE ACCOMPLISHING NR 2 ENGINE T/C N842001, FOUND CORE DETECTOR HARNESS MW0326 BRAID DAMAGED AT 11 O'CLOCK POSITION. ACFT GROUNDED.
WHILE ACCOMPLISHING NR 2 ENGINE T/C N842001, FOUND CORE DETECTOR HARNESS MW0325 BRAID DAMAGED AT 3 O'CLOCK POSITION. ESN658531. GROUNDED - YES. ON DEFERRAL.
RIGHT A/C PACK LIGHT ILLUMINATED ON RECALL, EXTINGUISHED ON RESET. ACFT GROUNDEDS. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST ON BOTH TEMP CONTROLLERS. NO FAULTS NOTED IAW AMM 21-61-00-700-806-002. RAN BOTH PACKS NO FAULTS NOTED GROUND VERIFICATION CHECKED GOOD. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE CHECK WITH NO FAULTS NOTED IAW AMM 21-61-00-700-806-002.
DURING CRUISE FLIGHT FMC P/RST LIGHT ILLUMINATED ALONG WITH VTK MESSAGE ON FO MAP DISPLAY. AS WE BEGAN TO LOOK THROUGH THE QRH THE LIGHT WENT OUT AND THE MESSAGE CLEARED. GROUNDED, YES. L FMC LOGGED "FMC - PRES POS LAT RATE" ON FLIGHT LEG 1. R FMC LOGGED NO FAULTS. FMCS OPS TEST NORMAL, REF AMM 34-61-00. A/C OKAY FOR CONTINUED FLIGHT. CYCLED 2 C/B'S, REF FIM 34-61 TASK 836.
LEFT FMC FAILURE IN CRUISE, COMPLIED WITH QRH PROCEDURES AND CONTINUED WITH FMC SOURCE SELECT SWITCH IN BOTH ON RIGHT. ACFT GROUNDED. LEFT FMC LOGGED PMG FAULT, ACOMPLISHED FIM 34-61 TASK 807, OPS CHECK PASSED.
LARGE DOT IN MCP VERTICAL SPEED WINDOW. ACFT GROUNDED. VERIFIED, REMOVED & REPLACED MODE CONTROL PANEL IAW AMM 22-11-34, INSTALLATION TEST PASSED. ACCOMPLISHED DFCS LRU INTERFACE FOR MCP NR 32, LAND VERIFY TEST NR 49, & HGS SENSOR TEST FOR FCC/AT IAW AMM 22-00-01 & SMM 34-36-00.
ON RECALL RT PACK LIGHT COMES ON, WITH RESET RT PACK LT GOES OUT. ACFT GROUNDED. RT HAND PACK PRIMARY TEMP CONTROL IS INOPERATIVE. PERFORMED PACK/ZONE TEMP CONTROLLER BITE ON NR 1 AND 2. NO CURRENT FAULTS. FAULT ABLE TO BE RESET. DOES NOT RECALL. IAW AMM 21-61-00.
LEFT PACK LIGHT ILLUMINATED DURING MASTER CAUTION RECALL. LIGHT EXTINGUISHES WHEN THE MASTER CAUTION SYSTEM IS RESET. ACFT GROUNDED. ACCOMPLISHED LEFT PACK TEMP CONTROL BITE, IAW 21-61-00. FOUND FAULT LEFT RAM AIR SENSOR LOGGED ONE TIME IAW FIM 21-62 TASK 821. CLEARED FAULT, GROUND RAN LEFT PACK FOR 1 HOUR. NO FAULTS NOTED. ACCOMPLISHED LEFT PACK TEMP CONTROL BITE AGAIN, IAW FIM 21-62 TASK 801.
LEFT FMC FAIL DISPLAYED BUT NOT MAP. FMC ON BOTH CDU'S GONE. NO LNAV ON LEFT NAV DISPLAY BUT LNAV INFO ON RT NAV DISPLAY. LNAV, VNAV DISENGAGED. SWITCHED TO B AUTOPILOT-LNAV, VNAV RE-ENGAGED BUT NO FMC ON EITHER CDU UNTIL FMC BOTH ON RT SELECTED. ACFT GROUNDED. REF FMC BITE FIM 34-61 TASK 837. COULD NOT DUPLICATE. OPS TEST NORMAL.
CONTROLLER CAB ZONE TEMP ON RECALL. ACFT GROUNDED. FOUND CABIN SENSOR FAULTS ON LAST LEG. ACCOMPLISHED PACK TEMP CONTROLLER BITE, REF FIM 21-62, TASK 801. OPS NORMAL.
DURING CRUISE, RECEIVED A RIGHT PACK LIGHT. A/C PACK LIGHT GOES OUT WITH MASTER CAUTION RESET. ACFT GROUNDED. RT PACK ZONE TEMP ZONE CONTROLLER BITE LOGGED TCV FAULT, FAULT CLEARED. ACCOMPLISHED FIVE ADDITIONAL BITE TESTS, NO FAULTS LOGGED, IAW AMM TASK 21-51-00-700-803.
LEFT FMC FAILED ENROUTE, THEN CORRECTED ITSELF WITHIN A MINUTE. ACFT GROUNDED. REMOVED & REPLACED THE LEFT FMC AS A PRECAUTION, IAW AMM TASK 34-61-02. ACCOMPLISHED FMC SOFTWARE CROSSLOAD, IAW AMM TASK 34-61-00-470-806 & VERIFIED CORRECT SOFTWARES (OPS, OPC, NDB, MEDB, ADDB, LDDB-DRAG FACTOR). GROUND FUNCTIONAL CHECK NORMAL, IAW AMM TASK 34-61-00-710-801. REPOSITIONED FMC SELECTOR SWITCH BACK TO NORMAL POSITION.
DURING CRUISE, LEFT FMC FAILED & RESOLVED ITSELF. LATER IT FAILED AGAIN & COMPLETED QRH, SELECTED BOTH ON. ACFT GROUNDED. PERFORMED LEFT FMC BITE CHECK IAW FIM 34-61 TASK 801. FOUND FAULT LEFT PGM FAULT. ACCOMPLISHED LEFT FMC HARDWARE/SOFTWARE FAULTS, FAULT ISOLATION IAW FIM 34-61 TASK 807. NO FAULTS FOUND, SYSTEM CHECKED NORMAL.
ENROUTE AT CRUISE FL350, AFTER 2 PLUS HOURS, NR 2 BLUE STATUS RAM AIR DOOR FULL OPEN LIGHT ILLUMINATED, AND STAYED ON. ACFT GROUNDED. ACCOMPLISHED BITE CHECK OF BOTH PACK TEMP CONTROLLERS. LT CONTROLLER HAD RAM AIR FAULT ON PREVIOUS FLIGHT LEG. NO CURRENT FAULTS. NR 2 CONTROLLER HAS TCV FAULT. ACCOMPLISHED RAM SYSTEM FIM TASK 21-51 TASK 803. NORMAL INDICATION RESTORED. ACFT OK FOR SERVICE.
CONTROL CABIN ZONE TEMP CAUTION ON RECALL. ACFT GROUNDED. VERIFIED CONTROLLER CABIN ZONE TEMP CAUTION ON RECALL, ACFT CHECKED & RELEASED IAW MEL 21-21F. TROUBLESHOT IAW FIM 21-62, TASK 848 & 801. FOUND FAULT ON ZONE TEMP CONTROLLER 2, TRIM VALVE FLIGHT DECK. CLEARED FAULT, COULD NOT DUPLICATE, NO HISTORY 60 DAYS, REMOVED.
RIGHT RAM AIR FULL OPEN LIGHT WILL NOT EXTINGUISH. ACFT GROUNDED. ACCOMPLISHED RAM DOOR FULL OPEN LIGHT STAYS ON AIRPLANE IN THE AIR-FAULT ISOLATION, REF FIM 21-51, TASK 803. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST, BOTH NR 1 AND NR 2 CONTROLLER PASSED, NO FAULTS NOTED, REF AMM 21-51-00-700-803. ACCOMPLISHED RAM AIR SYS OPS TEST, BOTH LT AND RT RAM AIR INLET DOORS AND RAM AIR EXHAUST ACTUATOR. OPS CHECK NORMAL. VERIFIED GREEN NO LRU FAULT LIGHTS ON BOTH INLET AND EXHAUST ACTUATOR. PERFORMED GVI OF INLET AREA, NO FOD NOTED. GROUND VERIFICATION CHECKS GOOD, BOTH RAM AIR FULL OPEN LIGHTS, OPS CHECK GOOD ON/OFF DURING TEST, REF AMM 21-51-00-730-801.
LEFT FWD WINDOW HEAT "OVERHEAT" LIGHT ILLUMINATES STEADY WHEN SELECTED ON. ACFT GROUNDED. VERIFIED DISCREPANCY, INSPECTED AND FOUND LT FWD CB OPEN AT P6-4 PANEL. OPENED PANEL AND INSPECTED WIRING, NO FAULTS FOUND. CLOSED PANEL AND CLOSED CB, REF AMM 20-60-01. PERFORMED LT FWD WINDOW OPS TEST, REF AMM 30-41-00. SYSTEM CHECKS NORMAL.
WHILE ACCOMPLISHING HORIZONTAL STABILIZER LUBE T/C 78327000, FOUND APU INLET DOOR POSITION SENSOR LOOSE. ACFT GROUNDED. R & R APU INLET DOOR POSITION SWITCH & DOUBLER REF AMM 49-15-41. OPS CHECKS NORMAL.
AT CRUISE FL340, LEFT MCDU WENT BLANK FOR APPROXIMATELY 2-3 SEC THE INITIATED A BITE CHECK AND RETURNED TO NORMAL FUNCTION IN APPROXIMATELY 30 SEC. ACFT GROUNDED. ACCOMPLISHED FMC OPS CK IAW AMM 34-61-00, CHECKS NORMAL, NO OTHER FAULTS FOUND. GROUND VERIFICATION SUCCESSFUL.
FWD CABIN ZONE TEMP LIGHT, MASTER CAUTION AND AIR COND, 6 PACK, LIGHTS ILLUMINATE ON RECALL. ZONE TEMP LIGHTS EXTINGUISH WHEN MASTER CAUTION IS PUSHED TO RESET. FWD CABIN SUPPLY DUCT TEMP SELECTOR MOVEMENTS. ACFT GROUNDED. PERFORMED BITE TEST OF ZONE TEMP CONTROLLERS, NR 2 ZONE TEMP CONTROLLER SHOWED FAILURE OF TRIM CONTROL VALVE. BITE TEST PERFORMED IAW AMM 21-61-00-700-806-002. R & R FWD PASSENGER COMPARTMENT TRIM AIR MODULATION VALVE REF AMM 21-61-21-000-801 AND 21-61-21-400-801. OPS CK AND BITE CHECK GOOD, NO LEAKS.
UPON MASTER RECALL AFTER START FWD CAB ZONE TEMP LIGHT TEMP SUPPLY DUCT NORMAL. RESET WITH MASTER CAUTION RESET. ACFT GROUNDED. PRIMARY FLT CONTROL INOPERATIVE. ACCOMPLISHED NR 2 PACK/ZONE TEMP CONTROLLER BITE TEST IAW AMM TASK 21-61-00-700-806-002. RAN PACK 20 MIN FULL COLD. NO DEFECTS NOTED.
DURING TAXI FOR TAKEOFF THE LT PACK LIGHT CAME ON DURING MASTER CAUTION RECALL. THE LIGHT GOES OUT WHEN THE MASTER CAUTION RESET. ACFT GROUNDED. VERIFIED DISCREPANCY. PERFORMED LT PZTC BITE REF AMM 21-61-00. FOUND ACTUATOR EXT FAULT LOGGED. RESET SYSTEM. PERFORMED PZTC OPS CHECK REF AMM 21-61-00. GROUND RAN PACK FOR 1 HOUR. PERFORMED BITE AGAIN NO FAULTS FOUND. IN ADDITION PERFORMED RAM AIR SYS TEST REF AMM 21-51-00. SYS CKS NORMAL.
WHILE TROUBLESHOOTING MEL 21-32B, FOUND RT SIDE TEMP CONTROL VALVE INOPERATIVE. ACFT GROUNDED. REMOVED AND INSTALLED NEW RT SIDE TEMP CONTROL VALVE REF AMM 21-51-10. PERFORMED BITENR 2 PZT CONTROLLER IAW AMM 21-51-00. PERFORMED RT PACK GROUND CK. NO LEAKS NOTED. SYS CKS NORMAL.
LT PACK ILLUMINATED ON LANDING RECALL. RESET WITH MASTER CAUTION. ACFT GROUNDED. ACCOMPLISHED LT PACK TEMP CONTROL BITE IAW FIM 21-62, TASK 801. VERIFIED LT RAM AIR EXHAUST ACTUATOR FAULT. R & R LT PACK RAM AIR EXHAUST SRADA IAW AMM 21-51-27. OPS CHECK NORMAL.
ON MASTER CAUTION RECALL, HAD LT CABIN ZONE TEMP LIGHT. LIGHT EXTINGUISHED WHEN MASTER CAUTION RESET. ACFT GROUNDED. BITE CHECK ZONE TEMP CONTROLLERS, NO FAULTS.
ELECTRIC LIGHT ILLUMINATED ON GROUND. ACFT GROUNDED. ACCOMPLISHED AC POWER BITE REF AMM 24-41-00. GROUND VERIFICATION SUCCESSFUL. OPS CHECK NORMAL.
"CONTROLLER CABIN" ZONE TEMP LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES WITH MASTER CAUTION. ACFT GROUNDED. BITE TEST NR 2 CONTROLLER SHOWED FLT DECK TRIM VALVE FAULT. VERIFY TEST IS GOOD. BITE CHECK NOW GOOD.
CONTROL CABIN SUPPLY AIR TOO HOT, RAN QRH FOR CONTROL TEMP HOT. COULD NOT GET CONTROL OF TEMP. 80 DEGREES INDICATED ON DUCT SUPPLY, LT PACK LIGHT ILLUMINATED, TURNED PACK OFF TO KEEP LIGHT OFF. ACFT GROUNDED. R & R LT TCV LK & OPS NORMAL REF MM 21-51-10. ACCOMPLISH PACK/ZONE TEMP CONTROLLER BITE CK NO DEFECTS NOTED REF MM 21-61-00.
F/A REPORT LOUD NOISE IN AFT GALLEY ON INVESTIGATION HIGH PITCH WHINE COMING FROM BEHIND AFT GALLEY BULK HEAD. APU WAS RUNNING, SO PUT GROUND POWER ON ACFT, TURNED APU OFF AND LOUD NOISE WENT AWAY. DIMINISHING AS THE APU WOUND DOWN. ACFT GROUNDED. R & R APU REF AMM TASKS 49-11-00-000-803 AND AMM TASK 49-11-00-400-803 THROUGH STEP M.4. COMPLETED INSTALLATION OF APU REF AMM TASK 49-11-00-400/801. OPS AND LEAK CHECK SATISFACTORY.
AFTER START, ENGINE VALVE CLOSED, LIGHT REMAINED ILLUMINATED AT THE BRIGHT POSITION. ACFT GROUNDED.
FMC DISAGREE ON GROUND AFTER START. ACFT GROUNDED. RESOLVED IAW QRH.
DURING CRUISE, NOTICED THE NR 1 ENGINE VALVE CLOSED, LIGHT ILLUMINATED BRIGHT. ALL ENGINE INDICATIONS ARE NORMAL. AFTER SEVERAL MINUTES THE LIGHT WENT DARK. LIGHT ILLUMINATED AGAIN AT START OF DESCENT AND REMAINED ON THROUGH SHUTDOWN. ACFT GROUNDED.
NR 1 ENGINE - ENGINE FUEL VALVE LIGHT ILLUMINATED BRIGHT DURING ENGINE START AND FUEL LEVER BROUGHT TO IDLE BUT STAYED ON AND BRIGHT. ACFT GROUNDED. R & R NR 1 ENGINE HIGH PRESSURE SHUTOFF VALVE SWITCH. REF MM 73-21-09-400-801, 73-21-09-000-801, 71-00-00-700-807, 71-00-00-800-811, 71-00-00-700-808. OPS CHECK GOOD.
ENG 1, CHANNEL A, ACTUATOR CIRCUIT BREAKER P-18-2 A5 OPEN, PREFLIGHT DISCOVERY. ACFT GROUNDED. REPLACED NR 1 ENGINE ELECTRONIC ENGINE CONTROL REF AMM TASK 73-21-60-400-801-F00 AND 73-21-60-000-801-F00 59795. ELECTRONIC ENGINE CONTROL S/W VERIFIED INSTALLATION TESTED GOOD. REF POWER PLANT TEST REF TABLE 71-00-00-800-811-F00. GVI OF ELECTRONIC ENGINE CONTROL ALTERNATE, OPS TEST GOOD. ENGINE RUN GOOD, REF MM 73-21-08.
ON CLIMBOUT, ENGINE VALVE CLOSED ILLUMINATED BRIGHT FOR 5 MINS, THEN WENT OUT. ON LANDING, 3 HRS LATER, ENGINE VALVE CLOSED LIGHT RE-ILLUMINATED BRIGHT TILL SHUTDOWN WHICH THEN WENT DIM. ACFT GROUNDED, ON DEFERRAL.
RIGHT RAM DOOR FULL OPEN LIGHT ON IN FLIGHT. ACFT GROUNDED. BITE CHECK OF ZONE TEMP CONTROLLER SHOWED NO FAULTS. SMART ACTUATORS BOTH HAD GREEN LIGHTS. FOUND STEP 9 (D) ON FIM 21-51/803 TO BE IN ERROR, EXHAUST LOUVERS DON'T MOVE UNTIL FLAPS UP. REF EA 900ER-21EA-15458 FOR CORRECTION TO MANUAL. OPS CHECK OF RAM DOOR SYS NORMAL. ACFT GROUND VERIFICATION SATISFACTORY. NO PRIOR HISTORY 90 DAYS. REF FIM 21-51/803, MM 21-50-00.
AUTOFAIL AND ALTN LIGHTS ON PRESSURE PANEL ILLUMINATED AFTER LANDING. ACFT GROUNDED. NR 1 CABIN PRESSURE CONTROLLER LOGGED OFF LRU FAULT. FAULT CODE 011. ACCOMPLISHED DCPC NR 1 BITE PROCEDURE. RESET LOGGED FAULT. BITE PROCEDURE PASSES ALL TESTS REF MM 21-31-TASK 801. NO HISTORY 30 DAYS.
NR 2 IDG FREQUENT SERVICING. ACFT GROUNDED. ACCOMPLISHED TSR, NO LEAKS NOTED IAW STEP 2. REMOVED IDG NR 2 IDG REF AMM 24-11-11-000-801. VERIFIED OIL FILTERS NOT CONTAMINATED ON REMOVED IDG REF AMM 24-11-11-080-801. INSTALLED IDG REF AMM 24-11-11-400-801, LEAK CHECK GOOD. OPS TEST CHECK GOOD REF AMM 24-11-00-700-803.
RT RAM DOOR FULL OPEN LT REMAINS ILLUMINATED. ACFT GROUNDED. CHECKED. NO HISTORY - 60 DAYS. COULD NOT DUPLICATE. GROUND VERIFICATION GOOD. REF FIM 21-62/T854. INTERMITTENT FAULT. DURING BITE TEST OBSERVED LT & RT RT RAM AIR DOORS OPERATING IN UNISON. GVI OF RT RAM AIR DUCT GOOD. NO FOD NOTED.
CENTER TANK FUEL QUANTITY INDICATOR INTERMITTENT. ACFT GROUNDED. FQIS LOGS PROCESSOR FAULT 28-41309 CONTROLLER QTY SEVERAL TIMES EACH FLIGHT FOR SEVERAL LEGS. REF FIM TASK 28-41-TASK 808. REPLACED FUEL QTY PROCESSOR UNIT. RESET C/B'S AND OPS TESTED GOOD, REF MM 28-41-81. GROUND VERIFICATION GOOD.
FMC DISAGREE ON GRD. GROUNDED - YES. QRH PROCEDURES FOLLOWED. DISAGREE EXTINGUISHED.
AFTER POWER INTERRUPTION AT GATE AND PUSH BACK HAD FMC DISAGREE. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE AND FMC'S WERE NORMAL.
F/O R2 WINDOW DIFFICULT TO CLOSE. ACFT GROUNDED. FOUND FORWARD LOWER ROLLER ON R2 WINDOW TO BE LOOSE, FALLING OFF. REINSTALLED NEW FWD GLIDE BEARING BOLT REF AMM 56-12-11-820-801 WITH OPS/FORCE CHECK GOOD.
NR 2 IDG REQUIRED FREQUENT SERVICING. ACFT GROUNDED. NO EXTERNAL LEAKS NOTED. R & R IDG VENT VALVE AND IDG SERVICE FITTING IAW CMM 24-11-85 AND PERFORMED LEAK CHECK, OPS AND LEAK CHECKED GOOD.
FMC FAIL LIGHT. CAPTS NAV DISPLAYED. PRIOR TO RUNNING THE CHECKLIST SYSTEM RESTORED. ACFT GROUNDED. MAINT MSG FOR LT FMC LAST FLT. FLT WAS "B" BOTH RT FMC FAULTED THE LT FMC "L" CYCLED PWR TO LT FMC, BIT TEST PASSED, OPS NORMAL IAW FIM 34-61 TK 801. GROUND CONFIRMATION CK GOOD.
APU " MAINTENANCE" LIGHT ILLUMINATES INTERMITTENTLY. ACFT GROUNDED. FOUND APU OIL LOW. SERVICED APU OIL IAW AMM 12-13-31-610-803.
"TR UNIT" LIGHT ILLUMINATED AFTER POWER TRANSFER. ACFT GROUNDED. RESET CB ON P91, REF 20-60-01 T/R LIGHT EXTINGUISHED, PERFORMED TESTON ELECT CONT PANEL FAULTS NOTED.
APU FAULT LIGHT DURING START ATTEMPT. ACFT GROUNDED. APU OPS CHECKED GOOD IAW MM 49-11-00. NO HISTORY 30 DAYS. APU STARTED NORMALLY, THREE TIMES. CURRENT STATUS SHOWS NO FAULTS.
DURING CLIMBOUT, EXPERIENCED DUAL FMC FAILURE WAS ABLE TO INPUT DATA AND CONTINUE USING FMCS. OPS RESTORED AND NO FURTHER INCIDENT ENROUTE. ACFT GROUNDED. SUSPECT INTERMITTENT ISSUE COULD NOT DUPLICATE FMC BITE TEST GOOD REF FIM 34-61, TASK 801.
CHECK GW AND FUEL INDICATED IN SCRATCH PAD OF FMC. BOTH FMC PERF PAGES SHOWED BLANK FUEL INPUT RAN QRH "FMC/CDU ALERTING MESSAGE" MANUALLY ENTERED & UPDATED FUEL. ALL OTHER FUNCTION OPERATE NORMAL. ACFT GROUNDED. REPLACED FUEL QUANTITY PROCESSOR UNIT IAW MM 28-41-81-000-801 / MM 28-41-81-400-801. PERFORMED FQIS OPS TEST IAW MM 28-41-00-710-801. ALL TESTS PASS.
RIGHT FMC FAILED AT CRUISE ALTITUDE. ACFT GROUNDED. ACCOMPLISHED FMC DIAGNOSTIC DATA TRANSFER FOR BOTH LT AND RT FMC'S IAW AMM 34-61-00-810-801. ACCOMPLISHED FIM TASK 34-61/836 IDENT PAGE SHOWS FOR RT FMC.
ON GROUND, POWER FMC DISAGREE MESSAGE. ACFT GROUNDED. FOLLOWED QRH, OPS NORMAL.
RT RAM DOOR FULL OPEN LIGHT ILLUMINATED FOR DURATION OF FLIGHT. ACFT GROUNDED. PERFORMED PACK/ZONE TEMP CONTROLLER BITE, NO FAULTS CURRENT OR RECENT REF 21-61-00. REPLACED RT RAM AIR INLET ACTUATOR IAW MM 21-51-21-000-801 AND 21-51-21-400-801. ACFT GROUND VERIFICATION TEST PASSED IAW MM 21-51-00.
INFLIGHT AT 35,000 FT, CAPTAIN`S NAV DISPLAY HAD VTK FLAG. RAN CHECKLIST AND WAS UNABLE TO RESTORE NORMAL FMC OPS. CONTINUED FLIGHT WITH SINGLE FMC. ACFT GROUNDED. SECURED ACFT POWER. APPLIED POWER. CAPTAIN'S VTK FLAG REMAINS EXTINGUISHED. PERFORMED BITE TEST. NO SENSOR FAILURES OR INFLIGHT FAULTS LOGGED. NO OTHER ANOMALIES NOTED IAW FIM 34-61, TASK 801.
DURING CRUISE AT FL370, SINGLE FMC OPERATION ILLUMINATED ON BOTH FMC SCRATCHPADS, F/O SIDE VTK & MAP ILLUMINATED ON NAVIGATION DISPLAY. FOLLOWED QRH PROCEDURE FOR FMC FAIL. DUAL FMC OPERATION DID NOT RESTORE. ACFT GROUNDED. PERFORMED FIM TASK 34-61-807 AND FMC RESTORED TO NORMAL OPERATION, OK FOR SERVICE. NO 30 DAY HISTORY.
FORWARD CABIN TEMPERATURE FLUCTUATES DRAMATICALLY WITH MINIMAL INPUT FROM CABIN CONTROLLER. ACFT GROUNDED. VERIFIED NO FAULTS ON PACK TEMP CONTROLLERS AND CLEANED LINT OUT OF FWD AND AFT CABIN TEMP SENSOR FAN FILTERS IAW MM 21-61-11. OPS NORMAL.
APU FAULT LIGHT ILLUMINATED DURING START. TURNED APU SWITCH OFF. ACFT GROUNDED. ACCOMPLISHED FIM TASK 49-40, TASK 801. NO WIRING FUALTS FOUND. R & R IGNITION UNIT. OPS CHECKED GOOD IAW AMM 49-41-31.
F/A REPORT THAT WHEN THE REST OF THE CABIN IS BASICALLY COMFORTABLE IT IS VERY HOT IN THE VICINITY OF ROWS 12-13. ACFT GROUNDED. CLEANED BOTH CABIN FILTERS IAW 21-61-11. OPS CHECKED SYS. SYS CKS NORMAL. NO FAULTS FOUND ON BOTH ZONE CONTROLLERS. NO HISTORY.
DURING CRUISE, AUTOPILOT B ENGAGED, FMC P/RST YELLOW ALERT LIGHT ILLUMINATED. F/O MAP DISPLAY SHOWED VTX, FMA SHOWED CWS P, LNAV/VNAV DISENGAGED. AUTOPILOT REMAIN ENGAGED, AFTER SWITCHING TO AUTOPILOT A AND RESTORING LNAV & VNAV PROBLEM CLEARED ITSELF BEFORE QRH PROCEDURES. ACFT GROUNDED. COULD NOT DUPLICATE. ACCOMPLISHED FMCS OPS TEST IAW MM34-61-00, GROUND VERIFICATION TESTED NORMAL.
FMC DISAGREE LIGHT ON TAXI OUT. ACFT GROUNDED. RESET AND OPS NORMAL.