N513AS

Part: POWER SUPPLY — NO TEST (ZONE 200) · airframe 59,856 hrs · 18,439 cycles

WHILE ACCOMPLISHING TC 78233001, BATTERY PACKS FOR BOTH AFT WING DOORS AND AFT FLAP EMERGENCY LIGHTS INOP. EMERGENCY LIGHT FOR R2 DOOR INOP AS WELL. GROUNDED - YES. REPLACED EMERGENCY LT BATTERY & POWER SUPPLY 3 EA, M1670, M1671, M1672. REF AMM 33-51-06. OP CHK GOOD.

Part: COVER — MISSING (ZONE 200) · airframe 59,368 hrs · 18,232 cycles

LOWER "EXIT SALIDA" LIGHT COVER MISSING R-2 DOOR. GROUNDED - YES. REMOVED AND REPLACED LOWER EXIT SIGN LIGHT ASSY AT R2 DOOR REF AMM 33-51-01-960-802. LIGHTS TEST PASS. OPS TEST PASS. OK FOR SERVICE.

Part: COVER — UNSECURE (ZONE 200) · airframe 59,315 hrs · 18,222 cycles

R2 DOOR EMERGENCY LIGHT FELL OFF. GROUNDED - YES. REINSTALLED R2 DOOR EMERGENCY LIGHT LAMP COVER & AMM 33-51-01.

Part: SEAL — DIRTY (L1 DOOR) · airframe 56,937 hrs · 17,362 cycles

L1 DOOR DIFFICULT TO CLOSE. GROUNDED - YES. INSPECTED AND CLEANED L1 DOOR SEAL REF AMM 52-09-00. PERFORMED OPS CHECK OF L1 DOOR REF AMM 52-11-00. NO FURTHER DEFECTS NOTED.

Part: ANGLE — CORRODED (ZONE 200) · corrosion level 2 · airframe 56,497 hrs · 17,194 cycles

AFT WET AREA Z ANGLE AT STA 990 LBL 45 HAS CORROSION. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT LIMITS IAW B737-800 SRM 53-70-51-1A-1, REMOVED AND REPLACED Z ANGLE AIW B737-800 SRM 51-40-02-0G-0W= 1" O= .050" R= .027" L= 2" D= .023.

Part: FLOORBEAM — CORRODED (ZONE 200) · airframe 56,497 hrs · 17,194 cycles

FLOOR BEAM AT STA 986 HAS CORROSION FROM LBL 48 TO RBL 48. GROUNDED - YES. REMOVED CORROSION FROM FLOOR BEAM AT STA 986 LBL 48 TO RBL 48 TWO SPORTS ON BEAM WERE FOUND TO BE OUT OF LIMITS AND WERE REPAIRED IAW B737-800 SRM 53-70-51-2R-6 REPAIR 6 ALTERNATIVE 1 AND ALTERNATIVE 3 RESPECTIVELY. REMAINDER OF FLOOR BEAM FOUND TO BE IN LIMITS IAW B737-800 SRM 53-70-51-1A-1. APPLIED BLENDOUT MARKINGS IAW B737-800 AMM PGBLK51-05-01-701.W= 1" O= .15" R= .124" L= 3/4" D= .026".

Part: FLOOR SUPPORT — CORRODED (ZONE 200) · corrosion level 2 · airframe 56,497 hrs · 17,194 cycles

AFT WET AREA FLOOR SUPPORT AT STA 947-967 HAS CORROSION LBL 40. GROUNDED - YES. REMOVED DAMAGE ON FLOOR SUPPORT ON STA 947-967 LBL 40 MAX MAT LOSS 0.033 FOUND TO BE OUT OF LIMITS. AND REMOVED AND REPLACED FOR NEW PART AIW B737-800 SRM 53-70-51-1A-1, SRM 51-40-02-0G-0.W= 1" O= 0.080" R= 0.047" L= 1.5" D= 0.033.

Part: CARGO TRACK — CORRODED (ZONE 100) · corrosion level 2 · airframe 56,497 hrs · 17,194 cycles

AFT PIT R/H SIDE CARGO TRACKHAS CORROSION AT STA 787 TO 847. GROUNDED - YES. REPAIRED ON THE AFT PIT R/H SIDE CARGO TRACK FROM STA 727 TO STA 847 IAW B737-800 SRM 53-00-53-2R-3W= .75" O= .090" R= .073" D= .017".

Part: TRANSITION PANEL — CORRODED (ZONE 100) · corrosion level 2 · airframe 56,497 hrs · 17,194 cycles

AFT PIT R/H TRANSITION HAS CORROSION FROM STA 727B TO 767. GROUNDED - YES. REMOVED AND REPLACED TRANSITION PANEL ON AFT CARGO COMPT STA 727 TO 767 IAW B737-800 SRM 52-40-02-0G-0.W= 1.5" O= 0.040" R= 0.034 L= 2" D= 0.006".

Part: WEB — CORRODED (ZONE 100) · corrosion level 2 · airframe 56,497 hrs · 17,194 cycles

AFT PIT SILL WEB HAS CORROSION AT CARGO DOOR. GROUNDED - YES. REMOVED AND RPELACED WITH NEW AFT PIT SILL WEB IAW B737-800 SRM 51-40-02-0G-0W= 3." O= .050" R= .034" L= 1.0" D= .016".

Part: STRAP — CORRODED (ZONE 100) · corrosion level 2 · airframe 56,497 hrs · 17,194 cycles

AFT PIT STRAP AT CARGO DOOR HAS CORROSION. GROUNDED - YES. REMOVED AND REPLACED AFT PIT STRAP AT CARGO DOOR IAW B737-800 SRM 51-40-02-0G-0W= 1" O= .100" R= 0.076" L= 2" D= .024".

Part: TRANSITION PANEL — CORRODED (ZONE 100) · corrosion level 2 · airframe 56,497 hrs · 17,194 cycles

AFT PIT TRANSITION L/H SIDE HAS CORROSION FROM STA 727B TO 827. GROUNDED - YES. REMOVED CORROSION AND IS OUT OF LIMIT IAW B737-800 SRM 53-00-53-1A-2, REMOVED AND REPLACED TRANSITION PANELS IAW B737-800 SRM 53-00-53-2R-5W= 1" O= 0.040" R= 0.000 L= 2" D= .040".

Part: TRANSITION PANEL — CORRODED (ZONE 100) · corrosion level 2 · airframe 56,497 hrs · 17,194 cycles

FWD PIT R/H SIDE TRANSITION HAS CORROSION FROM STA 500B TO 500I. GROUNDED - YES. REMOVED AND REPLACED FWD PIT R/H SIDE TRANSITION FROM STA 500B TO 500I IAW B737-800 SRM 51-40-02-0G-0W= 1.2 O= .040 R= .034 L= 6 D= .006.

Part: FUSE — BLOWN (EMERGENCY LIGHTS) · airframe 55,769 hrs · 16,946 cycles

WHILE PERFORMING TC#78233008 EMERGENCY LIGHTS OPS CHECK, FOUND LT AFT OVRWG EXIT LIGHT INOP. SUSPECT BATTERY PACK, CHARGER FAULTY. GROUNDED- YES. RELAMPED AFT LT OVRWG EMERGENCY EXIT SIGN IAW AMM 33-51-01-960-801, NO HELP. R & R LT MID CABIN POWER SUPPLY- NO HELP. ORIGINAL POWER SUPPLY & NEW POWER SUPPLY BOTH HAVE A BLOWN FUSE. BLOWN FUSE IS 4TH FUSE FROM CONNECTOR PLUG. WHILE T/S WITH NEW BATTERY, M1694, WITH D12452 NO BLOWN FUSE. R & R LIGHT ASSY 11-5833-21. INSTALLED, M1694 BATTERY WITH NEW ONE IAW WDM 33-51-13-8 & AMM 33-51-06-960-007. ACCOMP WINDOW LIGHT TEST, TEST PASS. ACCOMP EMERGENCY LIGHTS OP CHECK ALL PASS TEST IAW AMM 33-51-00-720-801, AMM 33-21-00-960-807, AMM 25-21-20-400-801 & WDM 33-51-11-5.

Part: POWER SUPPLY — NO TEST (MAIN CABIN) · airframe 55,769 hrs · 16,946 cycles

WHILE TESTING EMERGENCY LIGHTS, AISLE LIGHTS R/H BS 500C +15 & BS 543 BOTH INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1676 PER AMM 33-51-06, OPS TEST GOOD, AISLE LIGHTS R/H BS 500C +15 AND BS 543 NOW WORKS.

Part: WIRE — DISCONNECTED (EMERGENCY LIGHTS) · airframe 55,769 hrs · 16,946 cycles

WHILE PERFORMING TC #78233008 EMERGENCY LIGHTS OPS CHECK FOUND RH FWD OVERWING EXIT LIGHT INOP. SUSPECT BATTERY PACK/CHARGER IS FAULTY. GROUNDED - YES. REMOVED AND REPLACED THE RH MID CABIN POWER SUPPLY, OPS CK FAILED. REINSTALLED THE ORIGINAL BATTERY PACK PER AMM 33-51-06-960-806. RELAMPED ALL BULBS IN R/H FWD OVERWING EXIT SIGN PER AMM 33-51-01-960-801. NO HELP. REMOVED THE EMERGENCY EXIT LIGHT FIXTURE AND FOUND BOTH WIRES NOT CONNECTED. CONNECTED BOTH WIRES AND REINSTALLED PER 33-51-01-960-802. FWD R/H EMERGENCY EXIT SIGN OPS CK GOOD.

Part: STARTER — LEAKING (NR 2 ENGINE) · airframe 53,631 hrs · 16,161 cycles

#2 STARTER LEAKING OIL FROM MAGNETIC CHIP DETECTOR PLUG. GROUNDED - YES. REMOVED AND REPLACED ENGINE 2 STARTER REF AMM 80-11-01 OPS AND LEAK CKS GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 53,533 hrs · 16,127 cycles

F.O. DISPLAY SHOWING "MAP" FLAG. GROUNDED - YES. (RESOLVED ON W/O: 1975526 TASKCARD: N/R-00001 ) AFTER RESETTING BOTH FMC'S AND REALIGNING ADIRU'S NORMAL OPS RESTORED.FMC 1 & 2 OP CK NORMAL.REF FIM 34-61 TASKS 801 & 837.CLEARS MEL 34-36J,C/N 29073513.SEAMC DARWIN NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 53,395 hrs · 16,078 cycles

HGS AND AUTOLAND UNSUCCESSFUL RW 16R SEA WITH 5 KTS TAILWIND. AFTER THROTTLES IDLE, AIRCRAFT FLARED, BUT FLOATED UNTIL APPCH WARN ANNUNCIATED, DISCONNECTED AUTOMATION TO LAND AIRCRAFT IN TOUCHBOWN ZONE IN VISUAL CONDITIONS. GROUNDED - YES. ACCOMPLISHED LAND VERIFY TEST REF AMM 22-11-00 WITH NO FAULTS FOUND. ALL TEST PASS. THIS CLEARS MEL'S 22-20B AND 22-99B C/N: 15052513 SEAMC TODD NOTIFIED AND PLACARD REMOVED. APPROACH SURVEY UPDATED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 53,223 hrs · 16,016 cycles

DUAL FMC FAIL IN FLIGHT. MOMENTARY LOSS OF LNAV/VNAV. RECOVERED MOMENTARY SINGLE FMC OPERATION ON THE GROUND. GROUNDED - YES. PERFORMED FMC BIT CK PER B737-800 FIM 34-61 TASK 801 CK PASSED. PERFORMED CPDCL FUNCTION TEST B737-800 AMM 34-61-00. CK OK.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 53,042 hrs · 15,949 cycles

TECHNICAL SERVICES RECEIVED EXCEEDANCE R06 REPORT POSSIBLE EGT EXCEEDANCE ON TAKEOFF FOR #1 ENGINE. GROUNDED - YES. INTERROGATED FMC CDU AND FOUND SHORT TIME FAULT #75-30401, VSV POSITION SIGNALS DISAGREE 954 DEGREES 0:12.8 PLACED ON PLT FOR 50 FLT HRS, AUTHORIZED BY SEAMC JEREMY, CN: 09043513

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 53,042 hrs · 15,949 cycles

ON SHUTDOWN ENG #1 EGT BOX SHOWS EXCEEDANCE. GROUNDED - YES. ON DEFERRAL.

Part: BELLCRANK — EXCESS PLAY (#1 ENGINE) · airframe 53,007 hrs · 15,935 cycles

WHILE ACCOMPLISHING T/C 78273000, FOUND SHORT TIME FAULT "75-20401: THE VSV POSITION SIGNALS DISAGREE" ON ENG #1. GROUNDED - YES. (RESOLVED ON W/O: 1968343 TASKCARD: N/R-00002 ) APPLIED ALTERNATE DEACTIVATION PROCEDURES ON #1ENGINE. REF. ASA MTX PROGRAM CH. 5 SECTION 5-07-01, PAGE 3, ITEM 3,4,7 AND 8. OPENED FAN COWLS AND THRUST REVERSER. INSTALLED THRUST REVERSER ACTUATOR SAFETY LOCK ASSEMBLY. REF AMM 78-31-00-800-802-FOO AND 71-11-02-010-801-FOO. PERFORMED VSV SYSTEM GVI INSPECTION, FOUND T518 ,RIGHT (CHANNEL -A) VSV ACTUATOR BELLCRANK HAS EXESSIVE PLAY. DKASSAYE 09/08/2023. REMOVED AND REINSTALLED NEW BELLCRANK ASSY IAW AMM 72-32-00-900-806 STEP 3B, R,5. STEP 4(1). RL 58708 09-08-2023 STILL REQUIRES OPS CHECK FOR HPTACC & VSV RL 58708 09/08/2023. PBOMAR 2475609/08/2023 INSP 54 PERFORMED IDLE LEAK CHECK AND ACTUATORS TEST PER AMM 72-32-00-900-805-F00 STEP 5.H.(4). NO LEAKS NOTED. NO FAULTS SHOWN RELATED TO THE VSV SYSTEM JCLEMENTE 57891 INSP 10 COMPLETED FADEC TEST PER AMM 72-32-00-900-805-F00 STEP 5.H.(3). OPS CHECK GOOD. JCLEMENTE 57891. COMPLETED VSV BELLCRANK REPAIR. POWER ASSURANCE TEST GOOD. NO FAULTS EEC. REF MM TASK 72-32-00-900-805-F00. THIS CLOSES THE PLT, CN 05016513, SEAMC AUSTIN NOTIFIED.

Part: BELLCRANK — EXCESS PLAY (#1 ENGINE) · airframe 53,007 hrs · 15,935 cycles

WHILE ACCOMPLISHING T/C 78278000, FOUND SHORT TIME FAULT "75-10401: THE VSV POSITION SIGNALS DISAGREE" ON #1 ENG. GROUNDED - YES. (RESOLVED ON W/O: 1968343 TASKCARD: N/R-00002 ) APPLIED ALTERNATE DEACTIVATION PROCEDURES ON #1ENGINE. REF. ASA MTX PROGRAM CH. 5 SECTION 5-07-01, PAGE 3, ITEM 3,4,7 AND 8. OPENED FAN COWLS AND THRUST REVERSER. INSTALLED THRUST REVERSER ACTUATOR SAFETY LOCK ASSEMBLY. REF AMM 78-31-00-800-802-FOO AND 71-11-02-010-801-FOO. PERFORMED VSV SYSTEM GVI INSPECTION, FOUND T518 ,RIGHT (CHANNEL -A) VSV ACTUATOR BELLCRANK HAS EXESSIVE PLAY. DKASSAYE 09/08/2023. REMOVED AND REINSTALLED NEW BELLCRANK ASSY IAW AMM 72-32-00-900-806 STEP 3B, R,5. STEP 4(1). RL 58708 09-08-2023 STILL REQUIRES OPS CHECK FOR HPTACC & VSV RL 58708 09/08/2023. PBOMAR 2475609/08/2023 INSP 54 PERFORMED IDLE LEAK CHECK AND ACTUATORS TEST PER AMM 72-32-00-900-805-F00 STEP 5.H.(4). NO LEAKS NOTED. NO FAULTS SHOWN RELATED TO THE VSV SYSTEM JCLEMENTE 57891 INSP 10 COMPLETED FADEC TEST PER AMM 72-32-00-900-805-F00 STEP 5.H.(3). OPS CHECK GOOD. JCLEMENTE 57891. COMPLETED VSV BELLCRANK REPAIR. POWER ASSURANCE TEST GOOD. NO FAULTS EEC. REF MM TASK 72-32-00-900-805-F00. THIS CLOSES THE PLT, CN 05016513, SEAMC AUSTIN NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 53,001 hrs · 15,933 cycles

AUTO THROTTLE DISCONNECTED ON DECENT @ 11,000FT WAS UNABLE TO REINGAGE. GROUNDED - YES. ACCOMPLISHED A/T SYSTEM TEST. NO FAULTS FOUND REF AMM 22-31-00. ACCOMPLISHED A/T DFCS BITE TEST 60.04 REF AMM 22-11-00. OK FOR SERVICE.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 52,934 hrs · 15,910 cycles

ON T/C 78273000 FMC CK, FOUND ENG#1 VSV POSITION SIGNALS DISAGREE. MSG# 75-10401. SHORT TIME FAULT. GROUNDED - YES. INITI AL EVALUATION, PERFORMED EEC BITE IAW AMM 73-21-00-740-801-F00, NO FAULTS LAST 4 LEGS SINCE WRITTEN UP. THERE WERE 3 LEGS, 5,6, 9 THAT HAD FAULT 75-10401 AND 75-20401. FOLLOWING FIM 75-31 TASK 804 FOR DUAL CHANNEL, PERFORMED EEC TEST, TEST PASS. PERFORMED ACTUATORS TEST, TEST PASS. PULLED AND COLLARED 4 CB, READ OUT VALVES AT TABLE STEP G5, ALL WITHIN LIMITS. READ OUT RESISTANCE AT EEC CONNECTORS TABLE STEP G7, ALL WITHIN LIMITS. CLEANED ASSOCIATED CONNECTORS FOR BOTH CHANNELS WITH IPA, AND RECONNECTED. RESET CBS. RE RAN EEC BITE, TEST PASS. FAULTS NOT PRESENT AT THIS TIME. NO A/C HISTORY LAST 90 DAYS FOR EITHER 75-10401 OR 75-20401. THIS CLEARS 50 HR PLT. SEAMC KARL NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 52,898 hrs · 15,901 cycles

ON ARRIVAL AUTO THROTTLES TURNED OFF AND COULD NOT BE RE ENGAGED. GROUNDED - YES. ON DEFERRAL.

Part: OUTFLOW VALVE — LEAKING (AFT FUSELAGE) · airframe 52,536 hrs · 15,774 cycles

FA'S REPORTED LOUD SQUEALING IN AFT GALLEY DURING CLIMB OUT. LASTED 7 MINUTES. PRESSURIZATION NORMAL. COMMUNICATION NORMAL. GROUNDED - YES. (RESOLVED ON W/O: 1962817 TASKCARD: N/R-00001 ) COULD NOT VERIFY SQUEALING IN AFT GALLEY, OLD STYLE OUTFLOW VALVE P/N 4063-19972-01AB HAD HISTORY OF MAKING SQUEALING NOISE. REMOVED OLD STYLE OUTFLOW VALVE AND INSTALLED NEW OUTFLOW VALVE P/N 21230-02AC WITH REF AMM 21-31-03. OPS CHECK GOOD. PRESSURIZED AC TO 3 AND NO SQUEALING NOTED. THIS CLEARED PLT SEAMC DAVE NOTIFIED.

Part: SWITCH — FAULTY (NR 2 ENG SHUTOFF) · airframe 52,541 hrs · 15,775 cycles

ENG. # 2 FUEL VALVE REMAINS BRIGHT WITH ENG STRT LEVER CLOSED. GROUNDED - YES. (RESOLVED ON W/O: 1962817 TASKCARD: N/R-00002 ) ACCOMPLISHED ALTERNATE DEACTIVATION PROCEDURE ON #2 ENG REF ASA MNT CHAPTER 5 TABLE 3 ITEM 3,4 AND 7.OPENED FAN COWLS REF AMM 71-11-02/201. REMOVED AND REPLACED HPSOV SWITCH REF AMM73-21-09/201. CLOSED FAN COWLS REF AMM 71-11-02/201.REVERSED ALTERNATE DEACTIVATION PROCEDURE. REVERSED MEL MAINTAINANCE PROCEDURE. ENG #2 FUEL VALVE OPRATES NORMAL. PLACARDS REMOVED THIS CLEARS MEL73-10, C/N 24095513.HUMS QUALIFIED. SEAMC MITCH NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 52,531 hrs · 15,772 cycles

WINDOW OVERHEAT AMBER CUATION LIGHT-LEFT-ILLUMINATED. GROUNDED - YES. (RESOLVED ON W/O: 1963085 TASKCARD: N/R-00001 ) ACCOMPLISHED LH SIDE WHCU BITE REF FIM 30-41 TASK 801. FOUND "WINDOW SENSOR" FAULT. MOVED LH SIDE WINDOW PRIMARY SENSOR WIRE TO SPARE SENSOR TERMINAL REF FIM 30-41 TASK 811. OPS TEST GOOD. THIS CLEARS MEL 30-11E. PLACARDS REMOVED, SEAMC RON NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 52,406 hrs · 15,738 cycles

ENG VALVE CLOSED INDICATOR LIGHTS ON #2, ENG SHOWS VALVE IN UNCOMMANDED POSITION. GROUNDED - YES. C/W FIM TASK 73-06-804 VALVE CLOSE LIGHT OPERATE CORRECTLYSEAMC AUSTIN NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 52,123 hrs · 15,650 cycles

FWD GALLEY EMERGENCY COVER FELL OFF. GROUNDED - YES. RESECURED EMERGENCY EXIT SIGN LENS COVER. EMERGENCY LIGHT OPS CHECK NORMAL. REF AMM 33-51-01.

Part: ANTENNA — FAULTY (WX RADAR) · airframe 51,978 hrs · 15,607 cycles

RADAR WAS SHOWING A SPOKE OF WEATHER/. AT 90 DEGREES THAT WAS NOT THERE. THE RADAR WAS ALSO NOT PAINTING KNOWN WEATHER IN AUTO MODE. GROUNDED - YES. REMOVED AND REPLACED WX RADAR ANTENNA DRIVE UNIT REF B737-800 AMM 34-43-11/401. .

Part: MODULATING VALVE — FAULTY (RH ECS BAY) · airframe 51,909 hrs · 15,585 cycles

RH PACK ILLUMINATED ON RECALL. GROUNDED - YES. R/R TRIM MODULATING VALVE IAW B737-800 AMM 21-61-21-000-801 AND 21-61-21-400-801. NO CURRENT FAULTS NO LEAKS FOUND.

Part: MODULATING VALVE — FAULTY (RH ECS BAY) · airframe 51,909 hrs · 15,585 cycles

AFTER ENGINE START, ON MASTER CAUTION RECALL RIGHT PACK LIGHT ILLUMINATED, EXTINGUISHES ON RESET. GROUNDED - YES. REMOVED AND REPLACED RH PACK TEMP CONTROL VALVE REF B737-800 AMM 21-51-10-000/400-801. PERFORMED BITE OF #1 & #2 PACK ZONE TEMP CONTROLLERS, NO FAULTS. L/H & R/H PACK OPS NORMAL, NO R/H PACK LIGHT ILLUMINATED. NO FAULTS FOUND.

Part: EEC — FAULTY (APU) · airframe 51,685 hrs · 15,505 cycles

APU FAULT LIGHT CHRONIC. GROUNDED - YES. REMOVED AND REPLACED APU ECU, VERIFIED S/N AND SOFTWARE REF B737-800 AMM 49-61-12.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 51,685 hrs · 15,505 cycles

APU FAULT LIGHT CAME ON DURING AFTER START FLOW AFTER BOTH ENG'S RUNNING - FAULT LT EXTINGUISHED AFTER ABOUT 5 MINS. GROUNDED - YES. MAINT MSG 49--61116 FOUND ON CURRENT STATUS. B737-800 FIM 49-60 TASK 802 CARRIED OUT AND FOUND TO BE AN INTERMITTENT FAULT.

Part: MODULATING VALVE — FAULTY (RIGHT ECS BAY) · airframe 51,566 hrs · 15,448 cycles

RIGHT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL. LIGHT GOES OUT ON MASTER CAUTION RESET. GROUNDED - YES. MSG ACTIVE ON RECALL, PZTC-2 SHOWS THIS PACK TCV ON CURRENT BIT REF B737-800 FIM 21-62 TASK 831. REMOVED AND REPLACED R/H TEMP CONTROL VALVE REF B737-800 AMM 21-51-10. LEAK CHECK GOOD. OPS CHECK GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 51,542 hrs · 15,435 cycles

APU FAULT LIGHT. GROUNDED - YES. PERFORMED B737-800 FIM 49-60 TASK 802 FOUND FAULT CODE 49-61116 ECU INTERNAL FAILURE TO BE INTERMITTENT FAULT NO HISTORY.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 51,485 hrs · 15,422 cycles

UPON RECALL RIGHT PACK MASTER CAUTION LIGHT ILLUMINATED, LIGHT EXTINGUISHED WITH RESET. GROUNDED - YES. PERFORMED B737-800 FIM TASK 21-62-801, #2 TEMP CONTLR SHOWS "THIS PACK TCV". PERFORMED FIM 21-62 TASK 831, RESET FAULT AND RE BITE TESTED W/NO FAULT. RAN BOTH PACKS FOR 1 HR PLUS W/NO DISCREP. RE BITE TESTD BOTH TEMP CNTLR W/ NO FAULTS. NO HISTORY LAST 90 DAYS.

Part: ACTUATOR — FAULTED (LT RAM AIR) · airframe 51,154 hrs · 15,321 cycles

LEFT PACK LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES ON RESET. GROUNDED - YES. PERFORMED B737-800 AMM 21-61-00-700-806-002 AND L/H PACK/ZN CON-L RAM AIR ACT FAULT WAS DETECTED. PERFORMED B737-800 FIM 21-62 TASK 837 AND L/H PACK/ZN CON-L RAM AIR ACT FAULT IS STILL ACTIVE. REMOVED AND REPLACED RAM AIR INLET ACTUATOR IAW AMM 21-51-21-000-801 AND 21-51-21-400-801, GROUND FUNCTIONAL CHECK GOOD IAW AMM 21-61-00-700-806-002.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 51,147 hrs · 15,320 cycles

LEFT PACK LIGHT ON WHEN RECALL PUSHED. GOES OUT WHEN MASTER CAUTION IS RESET. GROUNDED - YES. #1 ZONE TEMP CONT LOGGED RAM AIR ACT FAULT. FAULT CLEARED AND SYS OPS CKS NML PER B737-800 AMM 21-61-00, GND VERIFICATION SUCCESSFUL.

Part: SWITCH — FAULTY (LEFT MAIN WHEEL) · airframe 50,950 hrs · 15,254 cycles

AFT LEFT FUEL BOOST PUMP LOW PRESSURE LIGHT DOES NOT ILLUMINATE WITH PUMP SWITCH OFF BULB IS GOOD. GROUNDED - YES. REMOVED & REPLACED AFT LH FUEL BOOST PUMP PRESS SW IAW B737-800 AMM 28-42-11.

Part: VALVE — FAULTY (#2 ENGINE) · airframe 50,870 hrs · 15,226 cycles

#2 ENG ANTI-ICE VALVE DISAGREEMENT LIGHT CAME ON DESPITE REPEATED ATTEMPTS AT DIFFERENT POWER SETTINGS. GROUNDED - YES. PERFORMED B737-800 FIM 30-21 TASK 805 FOUND ENG ANTI ICE VALVE TO BE BAD. REMOVED AND REPLACED #2 ENGINE ANTI ICE VALVE REF B737-800 AMM 30-21-11 OPS CHECK & LEAK CHECK GOOD.

Part: NOT REPORTED — NOT REPORTED (NOT REPORTED) · airframe 50,705 hrs · 15,180 cycles

AFTER ENGINE START AND ESTABLISHING ELECTRICAL POWER THE ELEC LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED B737-800 FIM 24-31 TASK 801, FOUND FAULT AUX BAT CHARGER INOP "I", FAULT CLEARS.

Part: MODULATING VALVE — FAULTED (LT ACM) · airframe 50,558 hrs · 15,139 cycles

ZONE TEMP CONT CABIN ILLUMINATED AFTER START ON RECALL. GROUNDED - YES. REMOVED AND REPLACED TCV (V143) REF B737-800 AMM 21-61-21. ORIG SUB DATE: 1/23/2023

Part: ACTUATOR — INTERMITTENT (LT RAM AIR) · airframe 50,283 hrs · 15,064 cycles

CONT CAB ZONE TEMP LIGHT ON MASTER CAUTION RECALL. RESETS AFTER PUSHING MASTER CAUTION. GROUNDED - YES. ACCOMPLISHED PACK ZONE TEMPERATURE TEST BITE PER AMM 21-61-00-700-806-002 RH CONTROLLER FAULTED FLT DECK TRIM VALVE. REMOVED AND REPLACED CONTROL CABIN TRIM VALVE PER AMM 21-61-21/401. RAN PACKS FOR 10 MINUTES, ACCOMPLISHED TRIM VALVE INSTALLATION CHECK PER AMM 21-61-21-400-801 PARA G. CHECK PASSED. ORIG SUBMISSION DATE: 12/29/2022

Part: MODULATING VALVE — FAULTED (LT ECS) · airframe 50,145 hrs · 15,027 cycles

LEFT PACK LIGHT ILLUMINATES ON RECALL. PACK LIGHT EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED & REPLACED TRIM MODULATING VALVE. IAW B737-800 AMM 21-61-21/401. ORIG SUB DATE: 12/16/2022

Part: SHUTOFF VALVE — FAULTED (NR 2 ENGINE) · airframe 50,028 hrs · 14,998 cycles

#2 ENG VALVE CLOSED LIGHT NOT OPERATING CORRECTLY. GROUNDED - YES. REMOVED AND REPLACED #2 ENGINE HMU HPSOV SWITCH PER B737-800 AMM 73-21-09-000-801-F00/AMM 73-21-09-400-801-F00. PERFORMED POWERPLANT TEST #12 (ACTUATORS TEST) PER AMM 71-00-00-700-807-F00 AND POWERPLANT TEST #13 (ENGINE RUN - EEC BITE TEST) PER AMM 71-00-00-808-F00 - ALL TESTS PASS. ORIG SUB DATE: 12/5/2022

Part: MODULATING VALVE — FAULTED (LEFT ECS BAY) · airframe 49,987 hrs · 14,988 cycles

UPON MC RECALL (AFTER START CHECK) AMBER ZONE TEMP FOR CONT CABIN ILLUMINATES - EXTINGUISHES UPON RESET. GROUNDED - YES. PERFORMED ZONE TEMP CONT BITE TEST. VERIFIED RED LIGHT ON ZONE TEMP CONTROLLER 2 AND FLT DECK TRIM VALVE INDICATION. REMOVED AND REPLACED RH ZONE TRIM AIR MODULATING VALVE PER B737-800 AMM 21-61-21-020-001/400-801. PERFORMED ZONE TEMP CONT BITE TEST PER AMM 21-61-00-700-806-002. OPS CHECKED GOOD. NO OTHER DEFECTS NOTED.

Part: WARNING MESSAGE — FALSE INDICATION · airframe 49,943 hrs · 14,979 cycles

UPON RECALL CONTROLLER CABIN ZONE TEMPT ILLUMINATES AND CLEARS WITH MASTER CAUTION RESET. GROUNDED - YES. VERIFIED CONT CABIN ZONE TEMP FAULT LIGHT ILLUMINATES ON MC RECALL. PERFORMED B737-800 FIM 21-62 TASK 801, FOUND "FLT DECK TRIM VALVE" FAULT LIGHT ON RIGHT HAND PZCT ILLUMINATED RED ON BIT AND PREV FLT. PERFORMED FIM 21-62 TASK 832, PULLED AND RESET C/B'S B3, B9, AND, B11 ON P6-4 PANEL, GOT GREEN GO LIGHT AFTER VERIFY BUTTON PUSHED. PER FIM, NO FURTHER ACTION IS REQUIRED. RAN LEFT AND RIGHT PACKS FOR 10 MINUTES, FROM FULL COLD TO FULL HOT, ON AUTO AND HIGH, AND CYCLED TRIM AIR OFF/ON. NO FAULT LIGHTS NOTED.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 49,757 hrs · 14,931 cycles

R1 DOOR EMERGENCY LIGHTS INOP. GROUNDED - YES. REMOVED REPLACED AND OP CK GOOD ON BATTERY PACK ON R/H SIDE OF FWD ENTRY LIGHT IAW B737-800 AMM 33-51-06-960-805.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 49,757 hrs · 14,931 cycles

LEFT HORIZONTAL STAB LOWER SKIN IS CRACKED @STA 129.50. GROUNDED - YES. REPAIRED LEFT HORIZONTAL STAB LOWER SKINS IAW 737-800 SRM 55-10-01-2R-11 THIS IS A CAT B REPAIR WITH A THRESHOLD OF 56,000 CYCLES AND REPETITIVE INSPECTION EVERY 9,000 CYCLES.

Part: HF COMM — FAULT MESSAGE (UNKNOWN) · airframe 49,669 hrs · 14,912 cycles

HF #2 SHOWS "FAIL" IN BOTH WINDOWS. GROUNDED - YES. PERFORMED BITE CHECK ON #2 HF. OPS CHECK GOOD. REF B737-800 FIM 23-11-00.

Part: MODULATING VALVE — FAULTY (LEFT ECS BAY) · airframe 49,622 hrs · 14,903 cycles

CONTROL CABIN ZONE TEMP ILLUMINATED EXTINGUISHES W/ MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED CONTROL CABIN TRIM MODULATING VALVE IAW B737-800 AMM 21-61-21-000-801 AND AMM 21-61-21-000-801.

Part: CONTROL VALVE — FAULTY (RIGHT ECS BAY) · airframe 49,462 hrs · 14,847 cycles

ON PUSHBACK RIGHT PACK ILLUMINATED WITH MASTER CAUTION RECALL. GROUNDED - YES. REMOVED AND REPLACED TEMPERATURE CONTROL VALVE REF B737-800 AMM 21-51-10 AND STANDBY TEMPERATURE CONTROL VALVE REF AMM 21-51-11.

Part: PITOT TUBE — FAULTY (OUTER FUSELAGE S) · airframe 49,319 hrs · 14,803 cycles

"CAPT PITOT" PROBE HEAT LIGHT ILLUMINATED AFTER ENGINE START. GROUNDED - YES. REMOVED & REPLACED CAPT'S PITOT PROBE. INSTALLED & REMOVED. REF B737-800 AMM 34-11-01-000-801 & 34-11-01-400-801.

Part: IDG — INOPERATIVE (#2 ENGINE) · airframe 48,974 hrs · 14,632 cycles

#2 ENGINE IDG SOURCE LIGHT ON. NO VOLTS OR FREQS. GROUNDED - YES. IDG #2 REMOVED AND REPLACED PER B737-800 AMM 24-11-11-400-801. CHECK AND LEAK CHECK GOOD AT THIS TIME.

Part: AUTOTHROTTLE SYS — DISENGAGED (UNKNOWN) · airframe 48,889 hrs · 14,598 cycles

AUTOPILOT INOP - WITH AUTOPILOT ENGAGE FOR TAKEOFF WHEN TOGA PUSHED RIGHT THROTTLE STARTED ADVANCING LEFT DID NOT AND AUTOPILOT DISENGAGED - SAME THING HAPPENED WHEN TRYING IT AGAIN AT ALTITUDE. GROUNDED - YES. PERFORMED AUTOTHROTTLE BITE REF FIM 22-31 TASK 801. UNDER INFLIGHT FAULTS ON LEG 16 FOUND MAINT. MESSAGE 22-31687 ASM 1 RATE MONITOR FAULT. REF FIM 22-32 TASK 819 PERFORMED INITIAL EVALUATION AUTOTHROTTLE SERVO MOTOR TEST. NO FAULTS FOUND. TEST PASS.

Part: ACTUATOR — CORRODED (BS 1156 BULKHEAD) · airframe 48,741 hrs · 14,527 cycles

"A" AUTOPILOT WILL NOT STAY ENGAGED. GROUNDED - YES. FOUND BAD "A" A/P ELEVATOR ACTUATOR AND PLUG CORRODED. REMOVED AND REPLACED AUTOPILOT ELEVATOR ACTUATOR "A" REF B737-800 AMM 22-11-26, CONNECTOR D1681 REF B737 SWPM 20-61-00 AND AUTOPILOT ELEVATOR "A" PRESSURE SWITCH REF AMM 22-11-40. LEAK CHECK GOOD. REF AMM 22-11-26-710-801 AUTOPILOT ELEVATOR ACTUATOR TEST GOOD. LAND VERIFY GOOD REF AMM 22-11-00. OPERATIONAL CHECK OF AUTOPILOT ACTUATOR TEST "A" CHECKED GOOD REF AMM TASK 22-11-26-710-801. LLM MAINTENANCE TEST PASSED REF AMM TASK 22-11-26-839-001. NO FAULTS FOUND. ETOPS GROUND VERIFICATION SUCCESSFUL.

Part: SATCOM — INOPERATIVE (UNKNOWN) · airframe 48,692 hrs · 14,510 cycles

BOTH SATCOM 1 AND 2 INOPERATIVE IN FLIGHT. DISPATCH WAS ABLE TO HEAR OUR TRANSMISSIONS AND ESTABLISHED A CONNECTION BUT WE WERE UNABLE TO HEAR ANY VOICE COMMUNICATION FROM DISPATCH. GROUNDED - YES. ACCOMPLISHED SATCOM SYSTEM TEST REF B737-800 AMM 23-15-00. BOTH SATCOM 1 AND SATCOM 2 OP CHK GOOD. NO HISTORY LAST 90 DAYS.

Part: FCU — FAULTY (APU) · airframe 48,472 hrs · 14,439 cycles

APU FAULT LIGHT CAME ON DURING START OF APU. GROUNDED - YES. PERFORMED WIRE CHECKS IAW B737-800 FIM 49-32 TASK 805 NO FAULTS FOUND IN WIRING. REMOVED AND REPLACED APU FCU. PERFORMED GROUND TEST NO DEFECTS NOTED.

Part: IGNITER — FOULED (APU) · airframe 48,467 hrs · 14,436 cycles

APU FAULT LT ON AFTER LANDING. RAN QRH AND APU FAULT LT ON AGAIN AFTER SECOND ATTEMPT. GROUNDED - YES. FOUND FAULT CODE 49-41011. ACCOMPLISHED B737-800 FIM 49-40 TASK 802. FOUND FOULED IGNITOR PLUG. REMOVED AND REPLACED IGNITOR PLUG AND LEAD PER B737-800 AMM 49-41-51 AND 49-41-52. APU OPS CHECKS NORMAL. NO FAULTS.

Part: HF COMM — INOPERATIVE · airframe 48,457 hrs · 14,433 cycles

HF2 WAS TESTED IN FLIGHT BETWEEN KSLC AND KSEA ON FREQUENCIES 8843 AND 5547. FLIGHT CREW WAS UNABLE TO VERIFY POSITIVE VOICE COMMUNICATION ON HF2. SUCCESSFUL VOICE COMMUNICATION WAS COMPLETED ON HF1. GROUNDED - YES. REMOVED AND REPLACED #2 HF COUPLER PER B737-800 AMM 23-11-61 & #2 HF TRANSCEIVER IAW AMM 23-11-21.

Part: CONTROL VALVE — FAULTY (LEFT ECS BAY) · airframe 48,400 hrs · 14,413 cycles

CONT CAB "ZONE TEMP" LIGHT ILLUMINATES ON MC RECALL. GROUNDED - YES. ACCOMPLISHED PZTC BITE REF B737-800 AMM 21-61-00-700-806-002. PREV HISTORY SHOWS FAULT FOR FLT DECK TRIM VALVE. FAULT CLEARED UPON VERIFICATION. REMOVED & REPLACED TCV FOR CONT CABIN REF AMM 21-61-21-400-801. 1 EA C/B OPENED & CLOSED. LEAK CK GOOD. ACCOMPLISHED PZTC BITE REF AMM 21-61-00-700-806-002. NO FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL.

Part: MODULE — FAULT MESSAGE · airframe 48,409 hrs · 14,415 cycles

THE APU FAILED TO START ON TAXI IN . FAULT LIGHT ILLUMINATED. GROUNDED - YES. REMOVED & REPLACED DATA MEMORY MODULE REF B737-800 AMM 49-72-11-000/400-801. FAULT MESSAGE : 49-72101 AND 49-72105 CLEARED. OPS TEST GOOD. APU OPERATES NORMALLY. A/C OK FOR SERVICE

Part: TRANSCEIVER — FAULTY (E/E RACK E8) · airframe 47,882 hrs · 14,220 cycles

UNABLE TO TRANSMIT OR RECEIVE HF1 AND HF2 WHILE AIRBORNE. HF TEST PRE DEPARTURE WAS OK. GROUNDED - YES. REMOVED & REPLACED TRANSCEIVER REF B737-800 AMM 23-11-21 OPS CHECK OF HF1 & 2 GOOD SEAMC ANDY NOTIFIED OPENED FVR LOG PAGE 60483767 C/N 06007513 ETOPS FLIGHT VERIFICATION REQUIRED CREW TO CHECK OPERATION OF HF1 & HF2 GROUND VERIFICATION SUCCESSFUL

Part: PLATFORM — DELAMINATED (#2 ENGINE) · airframe 47,786 hrs · 14,192 cycles

FOUND PLATFORMS DELAM1NATED/DETERIORATED #2 ENG. GROUNDED - YES. REMOVED AND REPLACED PLATFORMS AS REQUIRED #2 ENG REF T/C 78472010.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,706 hrs · 14,171 cycles

ELEC LIGHT ON OVERHEAD PANEL ILLUMINATED UPON TOUCHDOWN. GROUNDED - YES. P5-13 ELEC PANEL BITE SHOWS BAT CHGR INOP 1. REF B737-800 FIM 24-31 TASK 829, BOTH BAT CHGR BITE INDICATIONS ARE GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,700 hrs · 14,170 cycles

ELEC LIGHT ON RECALL AFTER ENG START. GROUNDED - YES. REF B737-800 FIM 24-31 TASK 801 AND TASK 829 PERFORMED ELECTRIC BITE TEST, FOUND BATT CHARGER FAULT. PERFORMED BATT CHARGER FAULT TROUBLESHOOTING FOUND NO FAULTS WITH WIRING AT MAIN BATTERY AND P5-13 PANEL. CLEANED CONNECTOR AT BATTERY AND CHARGER. ALL FAULTS CLEARED. BATTERY CHARGER OPS NORMALLY.

Part: TRANSCEIVER — INOPERATIVE (E/E RACK E8) · airframe 47,541 hrs · 14,125 cycles

MAINTENANCE REQUESTED HF RADIO #1 & #2 CHECK. HF RADIO #1 WORKS; WILL TRANSMIT AND RECEIVE. HF RADIO #2 DOES NOT WORK; WILL NOT TRANSMIT OR RECEIVE. GROUNDED - YES. REPLACED #2 HF R/T PER B737-800 AMM 22-11-21-400-801. BITE TEST ON R/T FACE PASSED. RADIO CHECK WAS GOOD. R/T TUNES FROM LOW TO HIGH FREQS NO PROBLEM AUDIO GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,521 hrs · 14,118 cycles

FIRST OFFICERS R-2 WINDOW IS HARD TO OPEN & CLOSE NOTE: VERY RESISTENT. GROUNDED - YES. FOUND LOWER FWD ROLLER BACKED OUT. RESECURED ROLLER AND SET SCREW. OPS CK'D GOOD REF B737-800 AMM 56-12-11-802-801.

Part: COUPLER — FAULTY (VERTICAL FIN) · airframe 47,395 hrs · 14,078 cycles

PER MAINTENANCE REQUEST, HF1 TESTS OK. HF2 WILL NOT TRANSMIT BUT WILL RECEIVE. GROUNDED - YES. FOLLOWED B737-800 FIM 23-11 TASK 806, THROUGH E(3). HF SYSTEMS 1&2 OPERATE CORRECTLY ON GROUND, AIRCRAFT TO AIRCRAFT. DUE TO EXTENSIVE HISTORY, CONTINUED WITH PARAGRAPH (H). METER CHECKS FOR COAX CABLE BETWEEN #2 HF TRANSCEIVER AND #2 HF COUPLER WERE GOOD NO DEFECTS NOTED. REPLACED #1 HF COUPLER PER B737-800 AMM 23-11-61/401. REPLACED THE #2 HF COUPLER PER AMM 23-11-61/401. REPLACED CONNECTOR D625 PRECAUTIONARY PER SWPM 20-51-00. #1 &2 HF OPS NORMAL REF AMM 23-11-00.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,240 hrs · 14,023 cycles

UPON LANDING ELEC CAUTION LIGHT ILLUMINATED. GROUNDED - YES. CLEARED BATTERY CHARGER-1 FAULT. COULD NOT RE-DUPLICATE FAULT. ATTERY CHARGER OP CK NORMAL. REF B737-800 AMM 24-31-21-710-801.

Part: CONTROL VALVE — FAULTY (LEFT ECS BAY) · airframe 47,240 hrs · 14,023 cycles

LEFT HAND PACK LIGHT DURING RECALL THAT RESETS. GROUNDED - YES. PERFORMED PACK/ZONE TEMPERATURE CONTROL BITE TEST FOR LEFT PACK REF B737-800 AMM 21-61-00-700-806-002. NO FAULTS FOUND. HISTORY SHOWS TCV FAULT; AS A PRECAUTION, REMOVED AND REPLACED LEFT PACK TEMPERATURE CONTROL VALVE REF AMM 21-51-10/401. OPS CHECKS GOOD, NO OTHER FAULTS NOTED AS OF THIS TIME.

Part: SHIM — DAMAGED (#1 ENGINE) · airframe 47,217 hrs · 14,017 cycles

#1 ENG FAN BLADE SHIMS MISSING MOLYDAG COATING. GROUNDED - YES. REPLACED #1 ENG FAN BLADE SHIMS PER T/C 78472010 " CFM56-7 FAN BLADE LUBRICATION.".

Part: BATTERY PACK — INOPERATIVE (ROW 22) · airframe 47,208 hrs · 14,013 cycles

REF T/C 78233001 FOUND EMERGENCY BATTERIES BAD AFT AIRPLANE. GROUNDED - YES. REMOVED AND REPLACED 3 EMERGENCY BATTERIES L/H-R/H ROW 22 & AFT CEILING REF AMM 33-51-06-960-806 OPS CHECK GOOD.

Part: LENS — MISSING (LH OVERWING EXIT) · airframe 47,190 hrs · 14,006 cycles

ENG EXIT SIGN LENS AT 16ABC MISSING. GROUNDED - YES. INSTALLED LENS AT 16ABC.

Part: TRANSCEIVER — INOPERATIVE (HF) · airframe 47,198 hrs · 14,009 cycles

#2 HF INOP. GROUNDED - YES. REMOVED AND REPLACED #2 HF R/T REF B737-800 AMM 23-11-21. HF COM SYSTEM TEST AND GROUND VERIFICATION PASS REF AMM 23-11-00-730-801.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,151 hrs · 13,994 cycles

FMC P/RST LIGHT ILLUMINATED AND VTK DISPLAYED ON CAPTAIN'S NAV DISPLAY.NO FMC DATA DISPLAYED AND FMC PROMPT REMOVED ON CAPTAIN'S CDU.RAN FMC FAIL QRH- RESTORED FMC INFO TO BOTH CDU'S. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 836. FAULT WAS INTERMITTENT. OPS CK NORMAL.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 47,095 hrs · 13,978 cycles

R1 EXIT SIGN COVER FELL OFF. GROUNDED - YES. RE-INSTALLED R1 EXIT SIGN COVER PER B737-800 AMM 33-51-01-960-802. NOW OKAY.

Part: MODULATING VALVE — FAULTY (LEFT ECS BAY) · airframe 47,085 hrs · 13,976 cycles

AFTER PUSH BACK ENGINE START GOT AIR CON RECALL WITH CONTROL CABIN ZONE TEMP LIGHT; CLEARS WITH RECALL RESET. GROUNDED - YES. R/R L/H TEMPERATURE CONTROL VALVE REF B737-800 AMM 21-51-10/401, NO LEAKS NOTED, BITE TEST PASSED. CONTROL CABIN ZONE TEMP LIGHT EXTINGUISHED, OPS CHECK FOUND NORMAL.

Part: COUPLER — FAULTED (ANTENNA) · airframe 46,997 hrs · 13,945 cycles

HF RADIO FVR FAILED/UNSAT. HF1 ABLE TO RECEIVE SELCAL, UNABLE TO RECEIVE OR TRANSMIT VOICE. HF2 UNABLE TO RECEIVE SELCAL , ABLE TO RECEIVE AND TRANSMIT VOICE. GROUNDED - YES. REPLACED #1 & #2 COUPLERS PER B737-800 AMM 23-11-61 PB 400 OPS CHECK GOOD IAW AMM 23-11-61 ACCOMPLISHED HF COMMUNICATION SYSTEM TEST AND SELCAL, OPS CHECK GOOD IAW AMM 23-11-00 AND 23-28-00.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 46,610 hrs · 13,792 cycles

ON TAXI IN TO GATE IN SEATTLE FMC DISAGREE ILLUMINATED AND STAYED ON TO THE GATE. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 835 FMC DISAGREE MESSAGE ON CDU. DETERMINED FAULT WAS INTERMITTENT. SYSTEM OK FOR SERVICE.

Part: COMPUTER — FAULTED (E/E SHELF E-2) · airframe 46,498 hrs · 13,742 cycles

PER INTERMITTENT HISTORY ON R/H FMC VTK ERROR AND FMC DISGAREE. PRI#2. GROUNDED - YES. REMOVED AND REPLACED R/H FMC COMPUTER REF B737-800 AMM 34-61-02/401. CROSSLOADED S/W P/N'S OPS-559775-001, OPC-BCG01T62, MEDB-BCG01TA0, LDDB-557362-004, ADDB-ASA1007A, AND NDB-ASA1210901 FROM L/H FMC REF AMM 34-61-00-710-806 AND B737-800 AIPC 34-61-02. PERFORMANCE FACTORS ADJUSTED REF AMM 34-61-00-800-801, OPS TEST PASS. ETOPS GROUND VERIFICATION SUCCESSFUL.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 46,502 hrs · 13,744 cycles

FO SIDE VTK, MAP, AND LDG ALT DISPLAYED TWICE DURING ARRIVAL. ISSUE DISAPPEAR ON ITS OWN BEFORE QRH EXCUTION. GROUNDED - YES. ACCOMPLISHED FMC BITE PROCEDURE ON RIGHT FMC. INFLT SHOW INTERMITTED FAULT RESET TWICE. SENSOR STATUS SHOWED ALL OK. RESET #2 FMC PERFORM BITE CK NO FAULTS NO VTK ISSUE REF B737-800 FIM 34-61 TASK 801.

Part: COUPLER — FAULTED (HF ANTENNA) · airframe 46,374 hrs · 13,678 cycles

FVR UNSATISFACTORY BOTH HF UNREADABLE. GROUNDED - YES. REMOVED HF1 AND HF2 COUPLERS. DISCONNECTED FEEDLINE TUBE AT UPPER END. CLEANED, RECONNECTED, AND SEALED UPPER ATTACH POINT. BONDING RESISTANCE WITHIN LIMITS REF B737-800 AMM 55-33-11-400-801. HF ANTENNA BONDING CHECK WITHIN LIMITS REF AMM 23-11-51-760-801. REINSTRALLED HF 1 COUPLER REF AMM 23-11-61-400-801. REMOVED AND INSTALLED NEW HF 2 COUPLER REF AMM 23-11-61/401. GROUND VERIFICATION SUCCESSFUL, INSTALLATION TEST PASSES REF AMM 23-11-61-400-801.

Part: COUPLER — INOPERATIVE (HF ANTENNA) · airframe 46,351 hrs · 13,670 cycles

BOTH CPT AND FO UNABLE TO TRANSMIT ON HF1 AND HF2. CAN TUNE BOTH HF 1 AND HF2 AND CLEARLY HEAR TRANSMISSIONS FROM ATC AND OTHER A/C. WHEN TUNING FROM 112.82 TO 5.547, COULD TRANSMIT AS LONG AS R/T MIKE SWITCH WAS NOT LET GO. ONCE LET GO BACK TO NEUTRAL POSITION, TRANSMISSION NO LONGER AVAILABLE. GROUNDED - YES. PERFORMED HF COMM SYSTEM TEST ON #2 HF REF. B737-800 MM 23-11-00. GROUND VERIFICATION TEST GOOD. FOUND #1 HF SYSTEM WILL NOT TUNE. OPENED AND TAGGED (2) C/B'S. REF B737-800 AMM 23-11-61. REMOVED AND REPLACED #1 HF COUPLER. RESET (2) C/B'S. GROUND VERIFICATION GOOD. OPS TEST NORMAL.

Part: SATCOM — FAULTED · airframe 46,346 hrs · 13,669 cycles

SAT COM DISPATCH DIRECTORY EMPTY NO PHONE #S UNABLE TO CONTACT L DESK, A DESK WAS CONTACTABLE. GROUNDED - YES. POWERED AIRCRFT DOWN AND POWERED AIRCRAFT UP. PERFORMED SATCOM COMM SYSTEM TEST PER B737-800 AMM 23-15-00-730-801 OPS TEST NORMAL SEAMC JEFF NOTIFIED.

Part: HF COMM — FAULTED (NR 1 & 2) · airframe 46,346 hrs · 13,669 cycles

BOTH HF1 & HF2 NO SIDE TONE - CANNOT TRANSMIT - CAN RECEIVE ON HF1 & HF2 BUT NO SELCAL AVAILABLE. GROUNDED - YES. POWERED AIRCRAFT DOWN AND POWERED AIRCRAFT UP. PERFORMED B737-800 FIM TASK 23-11 TAK 806. OPS TEST NORMAL. SEAMC JEFF NOTIFIED.

Part: FMC — INTERMITTENT · airframe 46,340 hrs · 13,668 cycles

GOT AN FMC DISAGREE ALERT AND A F.O. VTK MOMENTARILY DURING CRUISE. GROUNDED - YES. FMC BITE HISTORY LOGGED PGM FAULT. REF B737-800 FIM 34-61 TASK 837. FMC RESET, BITE TEST NORMAL. REF FIM 34-61 TASK 801.

Part: FMC — FAULTED (NR 2) · airframe 46,300 hrs · 13,653 cycles

FMC DISAGREE AND F.O. VTK CAME ON INTERMITTENTLY DURING FLIGHT. GROUNDED - YES. PERF B737-800 FIM 34-61 TASK 835. OPENED, RESET #2 FMC C/B ON P6-1. NO FURTHER DEFECTS NOTED. ETOPS GROUND VERIFICATION TEST SUCCESSFUL. SEAMC ETOPS LAMONT NOTIFIED.

Part: LIGHT — INOPERATIVE (CONTROL PANEL) · airframe 46,101 hrs · 13,587 cycles

MCP A/T ARM LIGHT INOP. GROUNDED - YES. REMOVED & REPLACED MODE CONTROL PANEL B737-800 AMM 22-11-34. ACCOMPLISHED MCP LRU REPLACEMENT TEST REF AMM 22-11-34-740-801, DFCS LAND VERIFY TEST REF AMM 22-11-00, & HGS SYSTEM REF HGS 40000 SMM 34-36-00, OPS CHECK NORMAL.

Part: IDG — INOPERATIVE (NR 1 GENERATOR) · airframe 46,063 hrs · 13,575 cycles

FOLLOW-UP TO #1 IDG CONTINUED FREQUENT SERVICING. REPLACE IDG FOR BENCH CHECK. (#PRI2/ETOPS). GROUNDED - YES. (RESOLVED ON W/O: 1881295 TASKCARD: N/R-00001 ) REMOVED AND REPLACED # 1 IDG REF AMM 24-11-11/401. OPS AND LEAK CHECK GOOD PER AMM 24-11-00-700-802. SERVICED IDG # 1 OIL TO CORRECT LEVEL REF AMM 12-13-21. PART NUMBER VERIFIED BY SEAMC JAKE.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 45,983 hrs · 13,554 cycles

ELEC LIGHT ON LANDING. GROUNDED - YES. P5-13 PANEL BITE SHOWS "BAT CHGR INOP" INTERMITTENT FAULT. CLEARED FAULT. BATTERY CHARGER (M5) CHECKS GOOD PER B737-800 FIM 24-31 TASK 829. STARTED APU ON BATTERY AND VERIFIED BATTERIES ARE CHARGING. GROUND VERIFICATION COMPLETE REF FIM 24-31, AIRCRAFT OK FOR SERVICE.

Part: TRANSCEIVER — FAILED (NR 1 HF) · airframe 45,838 hrs · 13,518 cycles

HF1 RADIO SHOWS FAIL/FAIL. GROUNDED - YES. NORMAL OPERATION RETURNED AFTER HF-1 BITE CK. NOTICED DURING RECEPTION THAT COMMUNICATION WAS WEAK AND GARBLED REGARDLESS OF SENSITIVITY SETTING. REMOVED & REPLACED #1 HF RT. OP CK NORMAL. REF B737-800 FIM 23-11 TASK 801.

Part: OIL COOLER — FAULTY (NR 1 IDG) · airframe 45,835 hrs · 13,517 cycles

FOLLOW-UP TO #1 IDG FREQUENT SERVICING. (#PRI2/ETOPS). GROUNDED - YES. RAN # 1 ENGINE FOR 10 MINUTES, NO LEAKS NOTED ON IDG AND NO LEAKS NOTED FROM DRAIN, REPLACED VENT VALVE AND SERVICE FITTING. CHANGED IDG OIL COOLER, PART EFFECTIVITY VERIFIED REF B737-800 AMM 73-11-06. PERFORMED GROUND VERIFICATION TEST, CHECKED NORMAL.

Part: MODULATING VALVE — FAULTY (LT A/C PACK) · airframe 45,813 hrs · 13,510 cycles

CONT CAB ZONE TEMP ILLUM W/ RECALL, LIGHT OUT W/ MASTER CAUTION RESET QRH COMPLETED. GROUNDED - YES. FOUND FAULT WITH FLT DECK TRIM VALVE, REMOVED AND REPLACED TRIM VALVE REF B737-800 AMM 21-61-21 OPS CHECKED GOOD, FAULT CLEARED.

Part: DISPLAY — MALFUNCTIONED (FIRST OFFICER'S) · airframe 45,734 hrs · 13,489 cycles

ON DESCENT FO PFD SHOWED VTK TWICE FOR LESS THAN 60 SECONDS. SECOND EVENT CAUSED BRIEF FMC SINGLE OPERATION THEN RETURNED TO NORMAL BEFORE QRH RUN. ON APPROACH LATERAL FLIGHT PATH WAS 0.16 - 0.20 MILES EAST OF CORRECT/AIRCRAFT/GROUND BASED DATA. AFTER LANDING VTK APPEARED ON CAPTAINS PFD FOR 10 - 15 SECONDS & CLEARED. NOTE: VERTICAL VNAV GUIDANCE DROPPED OFF AS WELL AT 1000' AGL. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 836. OPS CK GOOD. A/C OK FOR SVC.

Part: AUTOPILOT SYS — FAULTED · airframe 45,618 hrs · 13,457 cycles

BOTH A/P'S WOULD NOT ENGAGE. GROUNDED - YES. DIVERSION TIME 27 MINUTES - ADVISED FLIGHT CREW STAB TRIM SWITCH IN CUT-OFF POSITION. ACCOMPLISHED REQUIRED TESTS REF B737-800 AMM 22-11-00 OPS CHECK GOOD CAT IIIA AUTOLAND & HGS QUALIFIED.

Part: ECU — FAULTED (NR 1 ENGINE) · airframe 45,517 hrs · 13,429 cycles

DURING T/C 78273000, #1 ENG SHOWS SHORT TIME FAULT MSG 73-21281. EEC TEST SHOWS CHANNEL A INOP ON BOTH NORMAL AND ALT MODE. DURING FIM 73-27 TASK 805 EEC SHOWED INTERNAL FAULT MSG 73-20101. #1 ENG REQ EEC REPLACEMENT. GROUNDED - YES. REMOVED AND REPLACED #1 ENGING EEC IAW B737-800 AMM 73-21-60/401. OPS CHECK GOOD.

Part: FMC — FAULTED (.) · airframe 45,298 hrs · 13,362 cycles

WE GOT AN FMC DISAGREE MESSAGE ON THE SCRATCH PAD IT CLEARED ITSELF BEFORE REACHING THE GATE. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 836 FMCS OPS CHECK NORMAL.

Part: SENSOR — INOPERATIVE (NR 1 ENG N1) · airframe 45,218 hrs · 13,344 cycles

WHILE PERFORMING T.C. # 08031001, AEVM DISPLAYED MSG "N1 TACHO LOSS E1," ON LEGS 0, 1, AND 2. SYSTEM TEST OK. GROUNDED - YES. REMOVED AND REPLACED N1 SPEED SENSOR PER B737-800 AMM 77-11-01-400-801-F00. OPS AND LEAK CHECK GOOD. NO FAULTS LOGGED.

Part: IDG — FAILED (NR 1 GENERATOR) · airframe 45,119 hrs · 13,318 cycles

AFTER ENGINE START GEN 1 WOULD NOT COME ON LINE. NO FREQ'S OR VOLTS NOTED ON PANEL. GROUNDED - YES. R/R #1 ENG IDG NO LEAKS NOTED. REF B737-800 AMM 24-11-11. OPS CHECK GOOD. GROUND VERIFICATION SUCCESSFUL.

Part: FMC — FAILED (RIGHT) · airframe 45,040 hrs · 13,302 cycles

RIGHT FMC FAILED IN FLIGHT VTK AND MAP APPEARED ON RIGHT NAV DISPLAY AFTER 20 SECONDS THE FMC RETURNED TO NORMAL OPS FOR REMAINDER OF THE FLIGHT. GROUNDED - YES. ACCOMPLISED FMCS OPS TEST B737-800 AMM 34-61-00 NO FAULTS FOUND OPS TEST NORMAL.

Part: FMC — MALFUNCTIONED (RIGHT) · airframe 44,890 hrs · 13,267 cycles

VTK AND MAP FLAGS ON RIGHT ND, SINGLE FMC OPERATION SCRATCHPAD MESSAGE ON BOTH MCDU'S. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 836, NO MORE MESSAGES ON ND FMC RH OK.

Part: OIL COOLER — LEAKING (APU) · airframe 44,649 hrs · 13,197 cycles

FOLLOWUP FOR MORE THAN DESIRED APU OIL CONSUMPTION. GROUNDED - YES. REMOVED & REPLACED APU OIL COOLER, ALONG WITH OIL COOLER RETURN TUBE, WHICH WAS FOUND TO HAVE A BENT LOCK TAB. LEAK CHECK OK. REF B737-800 AMM 49-91-41.

Part: FMC — MALFUNCTIONED (FIRST OFFICER'S) · airframe 44,472 hrs · 13,157 cycles

ON DESCENT VTK ON F/O'S DU FOR ABOUT 30 SECONDS. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TASK 836, FMC RESET OPS NORMAL FAULT INTERMITTENT.

Part: FMC — FAILED (RIGHT) · airframe 44,421 hrs · 13,144 cycles

3 SEPARATE OCCASIONS, FO NAV DISPLAY SHOWED MAP AND VTK WITH ASSOCIATED FMC ALERT LIGHT ILLUMINATION INDICATING RIGHT FMC FAILURE EACH TIME IT RESOLVED BEFORE ACCOMPLISHING, QRH. GROUNDED - YES. NR 2 FMC OPS NORMAL, COULD NOT DUPLICATE, NO HISTORY.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 44,393 hrs · 13,137 cycles

AFTER ENGINE START ELEC LIGHT ILLUMINATED. COMPLETED QRH PROCEDURES. GROUNDED - YES. PERFORMED BITE CK REF B737-800 FIM 24-31 TASK 801. LOGGED AUX BAT CHGR, STAT INV & SPCU INOP. RESET FAULTS. FAULTS CLEARED AND IS OK FOR SERVICE.

Part: FMC — MALFUNCTIONED (RIGHT) · airframe 44,369 hrs · 13,132 cycles

RT PED DISPLAYED VTK AT 4000 FT QRH RESTORED. GROUNDED - YES. PERFORMED FMCS RESET PER B737-800 FIM 34-51-TASK 836 OPS CHECK NORMAL.

Part: SLIDING WINDOW — OUT OF RIG (COCKPIT R2) · airframe 44,168 hrs · 13,086 cycles

COPILOT R2 WINDOW/ESCAPE HATCH WILL NOT OPEN. GROUNDED-YES. R2 WINDOW OPENED AND VERIFIED VERY HARD TO OPEN/CLOSE, REF B737-800 AMM 56-12-11-720-801. VERIFIED WINDOW HEAT TAP ON TB5014 FOR H16 CODE IS AT TERM 1, REF B737-800 WDM 30-11-11 A. PERFORMED R2 WINDOW ADJUSTMENT, PER AMM 56-12-11-820-801. FOUND ALL ADJUSTMENTS TO BE OFF, ADJUSTED WINDOW AS NECESSARY, PER AMM 56-12-11-820-801. RE-INSTALLED R2 WINDOW, PER AMM 56-12-12, NO OTHER ADJUSTMENTS NECESSARY. OPERATIONS CHECK, FIT CHECK, HANDLE FORCE AND LEAK CHECK ALL, OK PER AMM 56-12-11. WINDOW HEAT SYSTEM OPERATIONS CHECK OK, PER AMM 30-41-00.

Part: SENSOR — INOPERATIVE (PRECOOLER) · airframe 44,161 hrs · 13,083 cycles

W/O 1860663 DUE T/C NG-36WC-00001 ISSUED REF L/P 60041478 CONTINUATION TROUBLE SHOOTING FOR LEFT BLEED AIR DUCT PRESSURE LOW. GROUNDED-YES. W/O 1860663 T/C NG-36WC-00001 COMPLETED, LEFT BLEED AIR DUCT PRESSURE STILL LOW. PER TECH SERVICE INSPECTED 5TH STAGE VALVE, INSP PASSED, REF 36-11-02-200-801. PER TECH SVC R & R HIGH STAGE VALVE, REF B737-800 AMM 36-11-06, NO HELP, LEFT BLEED AIR DUCT PRESSURE LOW AT IDLE RUN. INSPECTED PRECOOLER INLET, FOUND NO DEBRIS. PER TECH SERVICES R & R PRE-COOLER VALVE SENSOR NO LEAKS, PER AMM 36-72-03. STARTED MIG 2C #40-0028961 FOR PARTIAL WORK MIG 2C 40-0028961 COMPLETED. PRESSURE TRANSDUCER P/N ON/OFF:41SG265-1, S/N ON:M015124 S/N OFF: J026488. ACCOMPLISHED BLEED AIR CROSSOVER TEST, PER AMM 36-11-00-710-801.

Part: SENSOR — FAULTED (COCKPIT WINDOW) · airframe 44,139 hrs · 13,078 cycles

WINDOW HEAT RIGHT SIDE OVERHEAT ILLUMINATED TURNED OFF COOLED/RESET, PER CHECKLIST AFTER WHICH THE OVERHEAT LIGHT ILLUMINATED AGAIN SWITCH TURNED OFF. GROUNDED-YES. REMOVED AND REPLACED R2 WINDOW. OPERATIONS TEST/LEAK CHECK GOOD, REF B737-800 AMM 56-12-11. PART GROUND VERIFIED.

Part: CONTROL UNIT — INOPERATIVE (R2 WINDOW HEAT) · airframe 44,103 hrs · 13,068 cycles

R2 WINDSHIELD OVERHEAT ANNUNCIATOR ON. GROUNDED-YES. REPLACED WHCU, REF B737-800 AMM 30-41-11.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDSHEILD OVRHT) · airframe 44,103 hrs · 13,068 cycles

R2 WINDSHIELD OVERHEAT LIGHT ILLUMINATES SHORTLY AFTER T/O RAN QRH. LIGHT STAYED EXTINGUISHED. GROUNDED-YES. RAN QRH RESET PROCEDURE. LIGHT STAYED EXTINGUISHED.

Part: WARNING LIGHT — FALSE ACTIVATION (R2 WINDOW) · airframe 44,065 hrs · 13,058 cycles

R2 WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED-YES. RAN QRM, LIGHT WENT OUT STAYED OUT.

Part: FMC — FAILED (RIGHT) · airframe 44,055 hrs · 13,054 cycles

RIGHT FMC FAILED TWO TIMES, ONCE JUST AFTER LEVEL OFF AND AGAIN DURING APPROACH. RECOVERED ITSELF. GROUNDED-YES. ACCOMPLISHED GVI FMCS CMPTR 2 C/B WIRING BEHIND P6-1, REF B737-800 WDM 34-61-11. REMOVED FMC 2 & CHECKED D3261C, PIN 7 & 8 SHOWS 0 OHM TO GROUND, PIN 1 SHOWS 116 VAC. REMOVED & REPLACED FMC 2, REF B737-800 AMM 34-61-02. ACCOMPLISHED FMC SOFTWARE CROSSLOAD, PER AMM 34-61-00-470-806 & PERFORMANCE FACTORS ADJUSTMENT ,REF AMM 34-61-00-800-801. GROUND VERIFICATION TEST NORMAL, REF AMM 34-61-00-710-801. VERIFIED ALL SOFTWARE CORRECT PER AIPC. PULLED & RESET 2 TOTAL C/BS. TRAX SHOWS, FMC 2 (S/N 013772) HAD PRIOR HISTORY (DUAL FMC FAILURE AT 36000', VTK/MAP FLAGS TOOK 2 MINUTES TO RESTORE).

Part: CONTROL VALVE — FAILED (NR 1 PRECOOLER) · airframe 43,975 hrs · 13,036 cycles

AT CRUISE FL 380 LEFT PACK DUCT PRESS 6 PSI RIGHT IS 40 PSI ON CLIMB OUT RIGHT 42 PSI LEFT 5 PSI. GROUNDED-YES. C/W NR 1 ENGINE BLEED AIR HEALTH CHECK T/C NG-36WC-00001, FOUND PRECOOLER CONTROL VALVE FAILED CONTROL PRESS CHECK. REMOVED & REPLACED NR 1 ENGINE PCV, PER B737-800 AMM 36-12-02. PCV OPERATIONS CHECK GOOD. COMPLETED ENGINE BLEED HEALTH CHECK T/C WITH NO FURTHER DEFECTS NOTED. PERFORMED ENGINE BLEED AIR CROSSOVER OPERATIONS TEST, PER AMM 36-11-00. OPERATIONS TEST PASSED. GROUND VERIFICATION TEST SUCCESSFUL. LEFT & RIGHT DUCT PRESSURES W/IN LIMITS.

Part: FMC — FAILED (RIGHT) · airframe 43,960 hrs · 13,032 cycles

RIGHT FMC FAILED IN FLIGHT AT FL400. GROUNDED-YES. FOUND NUMEROUS INSTANCES OF "FMC DATA INV" AND "NO FMC DATA" LOGGED IN CHANNEL B OF DFCS FAULT REVIEW ON THIS FLIGHT. REPLACED THE NR 2 FMC, PER B737-800 AMM 34-61-02/401. OPERATIONS CHECKS GOOD, PER SAME. FMC SWITCH PLACED BACK INTO THE NORMAL POSITION.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 43,954 hrs · 13,030 cycles

LT HORIZONTAL LOWER SKIN HAS A CRACK AT STA 129.5 10 FWD OF TRAILING EDGE. GROUNDED-YES. REPAIRED LT HORIZ LOWER SKIN AT STA 129.5, IAW 737-800 SRM 55-10-01-2R-11 REPAIR 11. THIS IS A CAT B REPAIR REQUIRES INSPECTION AT THRESHOLD OF 56,000 TOTAL FLIGHT CYCLES, REPEAT INSPECTS INTERVAL OF 9,000 FLIGHT CYCLES.

Part: CHECK VALVE — BINDING (NR 2 BLEED) · airframe 43,878 hrs · 13,057 cycles

REF TC AD20201651-NG-36-2, NR 2 ENG 5TH STG BLEED AIR CHECK VALVE FAILS INSP ON STEP NR 4. GROUNDED - YES. REMOVED AND REPLACED NR 2 ENG 5TH STG BLEED AIR VALVE, REF T/C AD20201651-NG-36-2. OPS CHECKED AND LEAK CHECKED GOOD.

Part: OIL COOLER — LEAKING (NR 2 IDG) · airframe 43,951 hrs · 13,029 cycles

NR 2 ENGINE HAS REPORTS OF EXCESS OIL ADDED AFTER 15 MINUTE IDLE RUN WHILE AIRCRAFT IS IN ACTIVE STORAGE. PREVIOUS MAINTENANCE ACCOMPLISHED FOR SIMILAR REPORT: ANTI LEAK VALVE REPLACED, LUBE MODULE REPLACED, GEARBOX CHECKED FOR OIL HIDING. GROUNDED - YES. BORO FOUND NO DEFECTS. FOUND OIL COOLER LEAKING, REF B737-800 AMM 79-00-00, 72-00-00. REMOVED AND REPLACED NR 2 ENG AIR/OIL COOLER. LEAK CHECKS GOOD, REF B737-800 MM 24-11-21-000-801, 24-11-21-400-801. PERFORMED LEAK CHECK OF NR 2 ENG DRIVE PAD, REF B737-800 AMM 71-00-00, LEAK CHECK GOOD.

Part: VALVE — LEAKING (OIL SYSTEM) · airframe 43,951 hrs · 13,029 cycles

DUE TO RECENT REPORT OF 7 QUARTS OIL ADD TO THE NR 2 ENGINE WHILE THE A/C IS IN STORAGE. IT IS SUSPECTED THAT THE ENGINE MAY BE OVER-SERVICED DUE TO A LEAKING ANTI-LEAK VALVE AND LUBE UNIT SCAVENGE ABILITY. GROUNDED - YES. REMOVED AND REPLACED OIL ANTI-LEAK VALVE REF AMM 79-21-09 ON NR 2 ENGINE. LEAK CHECK GOOD.

Part: WARNING SYSTEM — ACTIVATED (COCKPIT) · airframe 43,921 hrs · 13,020 cycles

RIGHT WINDOW 2 OVERHEAT LIGHT ILLUMINATED DESCENDING THROUGH 12,000'. GROUNDED - YES. QRH RAN, LIGHT EXTINGUISHED.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 43,832 hrs · 12,996 cycles

WINDOW HEAT RIGHT SIDE "OVERHEAT" LIGHT ON AT LEVEL OFF. GROUNDED - YES. FOLLOWED QRH, AFTER COOLING PERIOD LIGHT STAYED EXTINGUISHED FOR REMAINDER OF FLIGHT. OPS NORMAL.

Part: IDG — FAULTY (NR 1 ENGINE) · airframe 43,826 hrs · 12,995 cycles

AT FL400FL GEN 1 SOURCE LIGHT OFF BUS BUS AND DRIVE ILLUMINATED. RAN SOURCE OFF THEN DRIVE OFF QRH, DISCONNECTED GEN 1 VIA SWITCH, STARTED APU AND PUT IT ON BUS. GROUNDED - YES. FOUND #I ENG IDG DPI EXTENDED. WHILE PERFORMING DPI CHECK REF 12-13-21-200-802. FOUND FERROUS PARTICLES MEASURING ABOUT 1/4 X 3/32ND IN SCAVENGE/CHARGE FILTER. #1 ENG IDG NEEDS TO BE REPLACED PER B737-800 AMM TASK 12-13-21-200-802 (G) TABLE 301.ACCOMPLISHED ALT DEACTIVATION PROCEDURES PER CH5 TABLE 3. PARTS VERIFICATION. REMOVED & REPLACED #1 ENG IDG.

Part: COMPUTER — FAILED (E&E BAY) · airframe 43,790 hrs · 12,987 cycles

VTK DISPLAYED ON CAPTAINS ND DURING LANDING ROLL. GROUNDED - YES. REPLACED #1 FMC COMPUTER, REF B737-800 AMM 34-61-02. OPERATIONAL TEST NORMAL.

Part: COMPUTER — FAILED (AUTOTHROTTLES) · airframe 43,498 hrs · 12,909 cycles

AUTOTHROTTLES WOULD NOT ENGAGE. GROUNDED - YES. A/T BITE SHOWS NUMEROUS FAULT MSG #22-31543 "A/T ENG 28VDC". ACCOMPLISHED B737-800 FIM 22-31 TASK 802 FAULT ISOLATION. REMOVED & REPLACED FCC-A REF B737-800 AMM 22-11-33. ACCOMPLISHED DFCS LRU REPLACEMENT TEST (GP 35), DFCS LAND VERIFY TEST (GP 49) REF AMM 22-11-00, A/T SYSTEM OPERATIONAL TEST REF AMM 22-31-00-710-801 & HGS SYSTEM TEST REF SMM 34-36-00, OPS CK NML. VERIFIED CORRECT FCC OPS SOFTWARES.

Part: AUTOTHROTTLE SYS — DISCONNECTED · airframe 43,480 hrs · 12,903 cycles

AUTOTHROTTLE DISENGAGED ON FINAL APPROACH WOULD NOT REARM. GROUNDED - YES. A/T BITE SHOWS MULTIPLE A/T ENG 28 VDC INV MSG 22-31543 LAST LEG. ACCOMPLISHED CURRENT STATUS BITE REF B737-800 FIM 22-31 TASK 801. OPS NORMAL REF SAME.

Part: START VALVE — FAULTED (NR 2 ENGINE) · airframe 43,324 hrs · 12,862 cycles

NR 2 ENGINE 2 START VALVE WOULD NOT OPEN WITH THE NR 2 SWITCH IN GROUND. GROUNDED - YES. EXCERCISED THE NR 2 START VALVE IAW AMM 71-00-00, ENGINE STARTED NORMALLY DEFECTS CLEARED. TSR704679 REMOVED AND REPLACED THE NR 2 ENGINE START VALVE IAW AMM 80-11-03/401. OPS CHECKED GOOD.

Part: CONTROL UNIT — FAILED (WINDOW HEAT) · airframe 43,209 hrs · 12,832 cycles

R2 WINDOW OVERHEAT LIGHT ON IN CRUISE. LIGHT WENT OUT AFTER QRH. GROUNDED - YES. RERACKED L/H WINDOW HEAT CONTROL UNIT. T/S AND OPS / BITE CK NML PER B737-800 AMM 30-41-11. C/W CORD INSPECTION PER AMM 30-41-00-200-801 CKS NORMAL. OK FOR SERVICE. AFTER SUBSEQUENT OPS CK OF WINDOW HEAT SYS FOUND LEFT WINDOW HEAT CONTROLLER "WHCU - LRU" FAULT LITE STEADY ON - WOULD NOT RESET. REMOVED AND REPLACED LEFT WINDOW HEAT CONTROL UNIT AND OPS/BITE CK NML PER AMM 30-41-11.

Part: UNKNOWN — MALFUNCTIONED (AUTOTHROTTLE SYS) · airframe 43,116 hrs · 12,813 cycles

GREEN A/T ARM LIGHT INOP. GROUNDED - YES. PERFORMED AUTOTHROTTLE SYS OPERATIONAL TEST REF B737-800 AMM 22-31-00-710-801. A/T ARM LIGHT AND OPS TESTS NORMAL.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 43,033 hrs · 12,794 cycles

AFTER TAKE-OFF RIGHT SIDE WINDOW HEAT OVERHEAT LIGHT. GROUNDED - YES. RESET PER QRH. AS PRECAUTINARY ACCOMPLISHED WINDOW HEAT CONTROL BITE B737-800 AMM 30-41-11 NO FAULTS FOUND OPS CHECK NORMAL.

Part: DISPLAY — MALFUNCTIONED · airframe 42,624 hrs · 12,685 cycles

VTK ON FO ND. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 836. RESET 4 C/B. OPS TEST GOOD. GROUND VERIFICATION TEST GOOD.

Part: ACTUATOR — FAILED (RAM AIR EXHAUST) · airframe 42,340 hrs · 12,618 cycles

LEFT PACK LT ILLUMINATED ON RECALL. GROUNDED - YES. PERFORMED BITE CHECK PER B737-800 AMM 21-61-00. LEFT P2TC SHOWS CURRENT FAULT FOR RAM AIR ACT & UNABLE TO CLEAR. PER TECH SERVICE NOTE, DUE TO HISTORY OF INSTALLED ACT FAILURE, REMOVE & REPLACED LEFT RAM AIR INLET ACT, REF AMM 21-51-21. GROUND VERIFICATION TEST SUCCESSFUL. FAULT CLEARED & DOES NOT RETURN.

Part: WARNING LIGHT — FALSE ACTIVATION (A/C PACK) · airframe 42,330 hrs · 12,616 cycles

DURING DESCENT CHECKLIST, LEFT PACK LIGHT ILLUMINATED WITH RECALL. PACK LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. FOUND PACK TEMP CONTROLLER BITE PROCEDURE ON BOTH CONTROLLERS PER B737-800 FIM 21-62 TASK 801. REST CONTROLLERS & NO FAULTS FOUND.

Part: ACTUATOR — FAULTY (LEFT RAM AIR INL) · airframe 42,325 hrs · 12,615 cycles

FOUND RAM AIR ACTUATOR FAULT ON L/H PACK ZONE TEMP CONTROLLER. GROUNDED - YES. REMOVED AND REPLACED L/H RAM AIR INLET ACTUATOR PER B737-800 AMM 21-51-21. THIS CLEARS CORRECTED FAULT ON L/H PACK ZONE TEMP CONTROLLER.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 42,335 hrs · 12,617 cycles

DURING DESCENT CHECKLIST, LEFT PACK LIGHT ILLUMINATED DURING RECALL AND EXTINGUISHED WITH MASTER CAUTION. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE REF B737-800 FIM 21-62 TASK 801 RESET CONTROLLERS AND NO FAULTS PRESENT. RAN PACKS, LEFT PACK LIGHT REMAINED EXTINGUISHED DURING RECALL AND MASTER CAUTION RESET. OK FOR SERVICE.

Part: WARNING LIGHT — FALSE ACTIVATION (COCKPIT TEMP) · airframe 42,286 hrs · 12,598 cycles

CONT CAB ZONE TEMP LIGHT ILLUMINATES ON RECALL. LIGHT EXTINGUISHES ON MASTER CAUTION SYSTEM RESET. GROUNDED - YES. ACCOMPLISHED BITE TEST ON LEFT AND RIGHT PACK ZONE TEMP CONTROLLERS PER B737-800 AMM 21-61-00. FAULT RESET. RAN PACKS FOR 30 MINUTES. NO FAULTS FOUND.

Part: COMPUTER — FAULTED (AUTOTHROTTLE) · airframe 42,252 hrs · 12,589 cycles

AUTO THROTTLE DISENGAGED AND WILL NOT RE-ENGAGE. GROUNDED - YES. RELEASED PER MEL 22-4B AUTO THROTTLE SYSTEM INOP. ACCOMPLISHED A/T SYSTEM TEST REF B737-800 AMM 22-31-00-710-802. ALL TESTS PASSED. DUE TO FAULT HISTORY, REMOVED & REPLACED FCC-A REF AMM 22-11-33/401. ACCOMPLISHED DFCS LRU REPLACEMENT TEST FOR FCC REF AMM 22-11-33/401. ALL TESTS PASSED. ACCOMP LAND VERIFY TEST REF AMM 22-11-00/201. ALL TESTS PASSED. THIS CLEARS MEL 22-4B & 22-99B. GROUND VERIFICATION SUCCESSFUL.

Part: MOTOR — FAILED (FUEL PUMP) · airframe 42,230 hrs · 12,582 cycles

AFT #1 MAIN FUEL PUMP "LOW PRESSURE" LIGHT ILLUMINATED ON CLIMB AND REMAINED AT CRUISE. THE TANK HAD 8500 LBS IN IT. GROUNDED - YES. REPLACE #1 AFT MOTOR IMPELLER BOOST PUMP. CLOSED 1 EA CIRCUIT BREAKER. GROUND VERIFICATION TEST SUCCESSFUL.

Part: CIRCUIT BREAKER — OPEN (FUEL PUMP) · airframe 42,171 hrs · 12,569 cycles

#1 AFT MAIN FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED AT TOP OF DESCENT. GROUNDED - YES. PERFORMED B737-800 FIM TASK 28-22-00-810-803 FOUND C/B D-1 P92 OPEN, RESET PER B737-800 AMM 28-22TASK 814 OPS CHECKS NORMAL.

Part: PUMP — OVERPRESSURED (NR 2 ENGINE) · airframe 42,083 hrs · 12,543 cycles

HYDRAULIC SYSTEM B PRESSURE SLOWLY INCREASED FROM 3030 PSI TO 3480 PSI OVER A 3 HR. PERIOD AT CRUISE FL 370. GROUNDED - YES. REMOVED AND REPLACED #2 ENG HYD PUMP REF B737-800 AMM 29-11-11/401, HYD FILTERS B SYS PRESS MODULE REF AMM 29-11-71/401, RETURN FILTER REF AMM 29-11-61/401 AND EDP CASE DRAIN FILTER REF AMM 29-11-51/401. NO METAL WAS FOUND IN OLD FILTERS. #2 ENG DRIVEN PUMP TESTED GOOD AND NO LEAKS FOUND ON #2 DEP OR ON THE 3 HYD SYSTEM FILTERS CHANGED REF AMM 29-11-11-40-801-001.

Part: AUTOTHROTTLE SYS — MALFUNCTIONED · airframe 41,767 hrs · 12,451 cycles

AUTOTHROTTLES INOP. GROUNDED - YES. OPERATIONAL TEST PER B737-800 AMM 22-31-00-710-801, OPS TEST GOOD. ACCOMPLISHED AUTOLAND VERIFY TEST PER AMM 22-11-00-700-801. TEST PASS. GROUND VERIFICATION SUCCESSFUL.

Part: CONTROLLER — FAILED (NR 2 PACK TEMP) · airframe 41,762 hrs · 12,450 cycles

CREW REPORTS, AFTER ENGINE START, ON THE RECALL ITEM THE LEFT PACK LIGHT ILLUMINATED AS EXPECTED. WHEN MASTER CAUTION RESET BUTTON WAS PUSHED THE LEFT PACK LIGHT DID NOT EXTINGUISH. GROUNDED - YES. REPLACED NR 2 PACK TEMP CONTROLLER IAW AMM 21-61-20. FAULT CLEARED, INSTALLATION TEST PASS. LH PACK LIGHT NOW WILL RESET.

Part: WARNING MESSAGE — FALSE ACTIVATION (LT A/C PACK) · airframe 41,762 hrs · 12,450 cycles

AFTER ENGINE START ON THE RECALL ITEM THE LEFT PACK LIGHT CAME ON AS EXPECTED GIVEN MEL 21-32B. WHEN MASTER CAUTION RESET BUTTON WAS PUSHED THE LEFT PACK LIGHT DID NOT EXTINGUISH. GROUNDED - YES. PERFORMED BITE TEST, REF B737-800 FIM 21-62 TASK 801 FAULT LH PRIMARY TCV AND STANDBY TCV FAULT POSTED. AFTER BITE TEST STANDBY TCV FAULT CLEARED.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 41,744 hrs · 12,446 cycles

LEFT PACK LIGHT ILLUMINATED UPON RECALL GOES OUT UPON RESET. GROUNDED - YES. RESET #1 PACK CONTROLLER FAULT HISTORY AND VERIFIED NO ACTIVE FAULTS IAW B737-800 AMM 21-51-00. OPERATED #1 PACK IAW AMM 36-00-00 WITH APU BLEED. NO FAULTS\LEAKS NOTED. PERFORMED SECOND PACK ZONE TEMP CNTRL BITE IAW 21-51-00 AND VERIFIED NO ACTIVE FAULTS. GROUND SYSTEM VERIFICATION GOOD. NO CONFIG CHANGES\RESETS REQUIRED.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 41,447 hrs · 12,353 cycles

PACK LIGHT ILLUMINATES DURING RECALL AND EXTINGUISHES WHEN RESET. GROUNDED - YES. ACOMPLISHED BITE PER FIM 21-61 TASK 801. FOUND "TCV" FAULT ON #1 CONTROLLER. AFTER BITE FAULT CLEARED. OP CHECK GOOD PER AMM TASK 21-61-00-700-807-002.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 41,379 hrs · 12,332 cycles

LEFT PACK LT ILLUMINATES ON RECALL. GROUNDED - YES. BITE AND VERIFY NO FAULTS.

Part: WIRE HARNESS — DAMAGED (NR 2 ENGINE) · airframe 41,279 hrs · 12,305 cycles

PER T/C N8420001 - RIGHT ENGINE HARNESS INSPECTION FOUND ENG J9 + J10 HARNESS DAMAGE AT T3 SENSOR CONN'S. GROUNDED - YES. REMOVED AND REPLACED J9 HARNESS ON #2 ENGINE REF AMM 73-21-06. FOR J10 HARNESS REPLACEMENT REF L/P 11973793. EEC DISCRETES TEST GOOD REF AMM 73-21-00-700-809-F00. ACTUATORS TEST PASSED REF AMM 71-00-00-700-807-F00. #2 ENGINE EEC TEST PASSED PER AMM 73-21-00-700-804-F00.

Part: WIRE HARNESS — TORN (NR 2 ENGINE) · airframe 41,279 hrs · 12,305 cycles

PER T/C N8420001 RIGHT ENGINE HARNESS INSPECTION FOUND BLACK BRAID TORN AT CJ10 DISCONNECT. DAMAGED BRAID IS ON THE J10 HARNESS. GROUNDED - YES. REMOVED AND REPLACED J10 HARNESS IAW AMM 73-21-06. FOR ALL HARNESS TESTS REF L/P 11973794, ALL TESTS PASSED.

Part: ENGINE — CRACKED (RIGHT) · airframe 40,763 hrs · 12,151 cycles

WHILE ACCOMPLISHING T/C 78472022 AT STAGE 1 LPT INSPECTION FOUND 1 FULL CRACK, 1 HOLE .0267 INCH SQUARE, 4 MULTI CRACKS (ON 1 AIRFOIL) AND 4 RADIAL CRACKS (ON 1 AIRFOIL) PER AMM 72-00-00-200-811-F00 FIG. 634. CONTINUE IN SERVICE LIMIT OF 25 CYCLES FOR #2 EMG. ESN 894227. REF. LP 11707358 GOR REINSPECT. GROUNDED - YES. #2 ENG ESN 894227 WAS REMOVED. LPT DAMAGE INDICATIONS TRANSFERRED TO SHOP W/O 455276. PLT CLEARED.

Part: WIRE HARNESS — INTERMITTENT (APU) · airframe 40,763 hrs · 12,151 cycles

APU HAS HISTORY OF FAULT CODE 49-31171 WITH NO STARTS ON LANDING. GROUNDED - YES. ACCOMPLISHED FIM 49-31 TASK 808 STEP F.(4) CONTINUITY FROM CONNECTOR D3599B PIN A9 TO P23 PIN 1 IS GOOD REF WDM 49-62-12 P23 PIN 2 TO GROUND IS GOOD. P23 PIN 3 GROUND IS INTERMITTENT WHEN CONNECTOR P23 IS SHAKEN. P23 PIN 3 IS AUX GROUND FOR FUEL FLOW DIVIDER CHASSI GROUND. REMOVED AND REPLACED APU HARNESS PER AMM 49-11-01. REMOVED AND REPLACED DELTA PRESSURE SENSOR PER AMM 49-52-33. REMOVED AND REPLACED EGT #1 THERMOCOUPLE PER AMM 49-71-21. REMOVED AND REPLACED INLET TEMP SENSOR PER AMM 49-61-31. PERFOMED ALL OPERATIONAL TEST PER ASSOCIATED MANUALS. ALL CHECK GOOD. GROUND VERIFICATION GOOD.

Part: FILTER ELEMENT — CLOGGED (APU) · airframe 40,733 hrs · 12,143 cycles

WHILE PERFORMING INSPECTION ON THE APU FOUND OIL FILTER INDICATOR FOR THE LUBE FILTER HOUSING EXTENDED OUT. GROUNDED - YES. REMOVED AND REPLACED LUBE FILTER ELEMENT PER AMM 49-91-12 AND REMOVED AND REPLACED OIL FILTER INDICATOR PER AMM 49-91-13 OPS CHECK GOOD. NO LEAKS OR DEFECTS NOTED.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 40,694 hrs · 12,129 cycles

CONT CAB ZONE TEMP LIGHT ILLUMINATED ON RECALL. EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. BITE CK FOUND FLT. DECK TEMP SENSOR FAULT ON PREV FLT. BITE CK OF BOTH ACC CONTROLS TEST NML. NO PRESENT FAULT. OPS CK NML. OK FOR SVC..

Part: IDG — LEAKING (NR 1 ENGINE) · airframe 40,681 hrs · 12,123 cycles

DURING IDLE LEAK CHECK OF #1 ENGINE. FOUND OIL LEAKING FROM IDG VALVE CAP PLATE. GROUNDED - YES. REMOVED #1 ENGINE IDG IAW AMM 24-11-11-000-801. INSTALLED A SERVICEABLE IDG IAW AMM 24-11-11-400-801 PARA 3A THRU 3H. ACCOMPLISHED AMM 24-11-11-400-801 PARA 3.I. THRU 3.L INSTALLATION COMPLETE.

Part: SEAL — LEAKING (NR 1 ENGINE) · airframe 40,682 hrs · 12,124 cycles

#1 ENGINE OIL CONSUMPTION TREND DATA SHOWS CONSUMPTION RATES TO BE GREATER THAN EXPECTED. GROUNDED - YES. UPON INSPECTION AFTER ENGINE RUN LEAK CHECK FOUND OIL LEAKING ON #1 ENGINE FROM IDG/AGB DRAIN. FOUND TO BE OUT OF LIMITS (MORE THAN ONE DROP IN 3 MINUTES) REF AMM 71/71/00 FIGURE 605 SHEET 2. AGB/IDG SEAL ASSY REQUIRES REPLACEMENT. REMOVED AND REPLACED #1 ENG AGB/IDG SEAL REF AMM 72-60-00. LEAK OK GOOD #1 ENG IDG.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 40,677 hrs · 12,122 cycles

PER INBOUND FLT CREW APU FAULT LT ILLUMINATED ON APU RESTART. GROUNDED - YES. PERFORMED APU BITE TEST REF FIM 49-60 TASK 801. FOUND MX MESSAGE 49-31171. PERFORMED FIM 49-31 TASK 808 WAITED 30 MIN AND RESTARTED APU START WAS NORMAL. NO MESSAGE ON CURRENT STATUS PAGE. A/C OK FOR SERVICE.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 40,625 hrs · 12,106 cycles

DURING TAXI IN TRIED STARTING APU RECEIVED APU FAULT LIGHT. GROUNDED - YES. APU WAS CONTINUOUS RUN IN FLIGHT. CREW TURNED OFF PRIOR TO TOP OF DESCENT. APU START ATTEMPTS WAS AFTER LANDING. NO SECOND ATTEMPT MADE. APU BITE ACCOMPLISHED. CODE 49-31171 DISPLAYED. FAULT LIGHT WAS NOT PRESENT. ACCOMPLISHED FIM 49-31 TASK 808 NORMAL APU START AND OPS CHECK. TWO TIMES IAW AMM 49-11-00. GROUND FUNCTIONAL TEST OK.

Part: CONTROL PANEL — DEFECTIVE (COCKPIT) · airframe 40,613 hrs · 12,103 cycles

DIGITS ARE DIFFICULT TO READ ON CAPTAINS COURSE DISPLAY ON THE MODE CONTROL PANEL. GROUNDED - YES. REMOVED AND REPLACED MCP PER AMM 22-11-34. PERFORMED INSTALLATION TEST OF MCP PER AMM 22-11-34-740-801. PERFORMED LRU REPLACEMENT TEST FOR MCP BITE TEST GROUP #32 PER AMM 22-11-34-740-801. PERFORMED LAND VERIFY TEST BITE TEST GROUP #49 PER AMM 22-11-00-700-801. ALL REQUIRED TESTS PASSED.

Part: WIRE HARNESS — DAMAGED (NR 2 ENGINE) · airframe 40,430 hrs · 12,054 cycles

WHILE INSTALLING RH VSV, (ENG #2) FOUND DAMAGED WIRES. GROUNDED - YES. REPLACED J9 AND J10 HARNESS. ALL OPS NML. ALL TEST PASS, REF B737-800 AMM 73-21-06, 71-00-00. GROUND VERIFICATION SAT.

Part: SWITCH — INOPERATIVE (FUEL SHUTOFF) · airframe 40,430 hrs · 12,054 cycles

WHEN INTERROGATING THE FMC CDU FOR ENGINE FAULTS FOUND ENGINE NBR 2 MSG NBR 73-31072 THE FUEL FILTER SIGNALS DISAGREE. GROUNDED - YES. REMOVED AND REPLACED FUEL FILTER DIFF PRESSURE SWITCH REF B737-800 AMM 73-34-01. OPS CHECKS AND LEAK CHECK GOOD.

Part: FILTER — ABNORMAL (NR 2 FUEL) · airframe 40,422 hrs · 12,052 cycles

#2 FUEL FILTER BYPASS LIGHT ILLUMINATED AFTER ENGINE START. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FUEL FILTER, DRAIN PLUG O-RING, AND RE-SAFETIED DRAIN PLUG IAW B737-800 AMM 73-11-02. ACCOMPLISHED GROUND VERIFICATION, PERFORMED IDLE ENG RUN OF #2 ENG, NO NEW FAULTS RECORDED, FILTER BYPASS LT NOT ILLUMINATED. NO DEFECTS NOTED

Part: CONTROL VALVE — STUCK (NR 2 A/C PACK) · airframe 40,427 hrs · 12,053 cycles

WITH MASTER CAUTION RECALL: # 2 PACK LIGHT REMAIN ON AFTER MASTER CAUTION RESET BUTTON PUSHED. GROUNDED - YES. CONFIRMED FAULT, BOTH #1 & #2 PACK-ZONE TEMP CONTROLLER BITE TEST FAILS TCV 2 (V141), WILL NOT RESET FAULT. FOUND TCV 2 FROZEN. REMOVED & REPLACED TCV 2 (V141) REF B737-800 AMM 21-51-10, LK CK & OPS CK NML REF AMM 21-61-00-700-806-002. RAN BOTH PACKS ON APU, GROUND FUNCTIONAL CK NML. AIRCRAFT RELEASED FROM MEL 21-1F.

Part: CONTROL VALVE — STUCK (RT A/C PACK) · airframe 40,417 hrs · 12,051 cycles

RT PACK LIGHT ON UPON MASTER CAUTION RECALL LIGHT EXTINGUISHES UPON MASTER CAUTION RESET. GROUNDED - YES. REF L/P 11972111, TCV 2 (V141) FAILED BITE TEST. REMOVED & REPLACED TCV 2 REF B737-800 AMM 21-51-10. ACCOMPLISHED PACK-ZONE TEMP CONTROLLER BITE TEST REF AMM 21-61-00-700-806-002, OPS CK NML. ALSO, RAN BOTH PACKS ON APU, GROUND FUNCTIONAL CK NML. MASTER CAUTION RECALL PRESSED NUMEROUS TIMES, RT PACK LIGHT DOES NOT COME ON. AIRCRAFT RELEASED FROM MEL 21-32B.

Part: ACTUATOR — LEAKING (NR 2 ENG VSV) · airframe 40,390 hrs · 12,044 cycles

WHILE PERFORMING IDLE RUN CHECK ON ENG #2, FOUND LEFT VSV LEAKING. GROUNDED - YES. REMOVED AND REPLACED VSV ACTUATOR IAW B737-800 AMM TASK 75-31-01. LEAK AND OPS CHECKS GOOD. THIS CLEARS PLT.

Part: ACTUATOR — LEAKING (NR VSV) · airframe 40,389 hrs · 12,043 cycles

WHILE PERFORMING IDLE RUN CHECK ON ENG # 2 FOUND RIGHT VSV LEAKING. GROUNDED - YES. REMOVED AND REPLACED #2 ENG RIGHT VSV ACT IAW AMM 75-31-01. LEAK AND OPS CHECKS GOOD. THIS CLEARS PLT.

Part: A/C PACK — FAULTED (RIGHT) · airframe 40,362 hrs · 12,037 cycles

R/H PACK LT W/ MC RECALL, GOES OUT W/ RESET. GROUNDED - YES. BITE CHECKED #2 ZTC - FAULTED TCV. PERF B737-800 FIM 21-62 TASK 831. VERIFY TEST PASSED. FAULT RESETS. RAN L/H & R/H PACKS W/ NO DEFECTS NOTED. ETOPS GND VERIFICATION TEST SUCCESSFUL.

Part: FMC — WARNING LIGHT (UNKNOWN) · airframe 40,313 hrs · 12,020 cycles

FMC DISAGREE LIGHT CAME ON DURING TAXI OUT. GROUNDED - YES. ACCOMPLISHED RESET PROCEDURE PER QRH. FMCS RESTORED NORMAL.

Part: LENS — BROKEN (EMERGENCY LIGHT) · airframe 40,261 hrs · 12,009 cycles

FA REPORTS EXIT SIGN BROKEN OFF BY R2 DOOR. GROUNDED - YES. INSTALLED NEW EXIT SIGN COVER.

Part: ANTI-ICE VALVE — FAILED (NR 2 ENGINE) · airframe 40,160 hrs · 11,980 cycles

R/H ENG ANTI-ICE WILL NOT TURN OFF, LIGHT IS BRIGHT BLUE WITH SWITCH IN OFF POSITION. GROUNDED - YES. REMOVED AND REPLACED #2 ENG TAI VALVE, LEAK CHECK AND ENGINE RUN OPS CHECK GOOD REF B737-800 AMM 30-21-11-400-801.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 40,073 hrs · 11,960 cycles

HF 1 SHOW FAIL IN BOTH THE ACTIVE & STANDBY WINDOWS, HOWEVER WE WERE ABLE TO TRANSMIT & RECEIVE. GROUNDED - YES. REF FIM 23-11 TASK 801. PERFORMED NR 1 HF BITE TEST NO FAULTS FOUND. TEST PASSED. AS PRECAUTIONARY R&R NR 1 HF TRANSCEIVER. REF AMM 23-11-21-000-801/400-801 NR 1 HF BITE TEST AND OPS CHECK PASSED.

Part: UNKNOWN — MALFUNCTIONED (COCKPIT) · airframe 39,835 hrs · 11,904 cycles

HF NR 1 FAIL, CYCLED POWER OP CHECK NORMAL. GROUNDED - YES. UNABLE TO DUPLICATE HF NR 1 ISSUES. OPS CHECK GOOD.

Part: SIGN — UNSECURE (CABIN) · airframe 39,815 hrs · 11,900 cycles

MID CABIN OVERWING EMERGENCY EXIT SIGN FELL OFF CEILING. GROUNDED - YES. REPLACED MISSING HARDWARE AND MOUNTED EMERGENCY EXIT SIGN.

Part: UNKNOWN — ABNORMAL (AUTOTHROTTLE SYS) · airframe 39,771 hrs · 11,889 cycles

AUTO THROTTLE WILL NOT ARM. GROUNDED - YES. ACCOMPLISHED AUTOTHROTTLE SYSTEM TEST AMM TASK 22-31-00-710-802. ALL TESTS PASS. ACCOMPLISHED LRU REPLACEMENT TEST FOR FCC A & FCC B. ALL TESTS PASS. REF AMM 22-11-00-740-815. ACCOMPLISHED LAND VERIFY TEST. ALL TESTS PASS. REF AMM 22-11-00-700-801.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 39,678 hrs · 11,864 cycles

NR 2 ENG BLUE COWL VALVE OPEN LITE AND NR 2 ENG AMBER TAI LITE REMAIN ILLUMINATED WITH ENG A/I SWITCH IN OFF POSITION. DURING DESCENT BOTH LIGHTS EXTINGUISHED AND OPS NORMAL TO SHUTDOWN. GROUNDED - YES. VERIFIED NR 2 ENG COWL ANTI-ICE & COWL VALVE OPEN LIGHTS ARE OFF. PERFORMED FIM 30-21 TASK 801 E AND FIM 30-21 TASK 804 E. BOTH LIGHTS REMAIN OFF, FAULTS INTERMITTENT. AIRCRAFT OK FOR SERVICE.

Part: SIGN — UNSECURE (CABIN) · airframe 39,650 hrs · 11,858 cycles

THE EXIT SIGN NEAR R-2 DOOR NEEDS TO BE REPLACED. IT WILL NOT STAY ATTACHED TO THE WALL. GROUNDED - YES. REMOVED AND REPLACED EMER LIGHT BASE ASSY ON R-2 DOOR (LOWER LIGHT ASSY) IAW AMM 33-51-01. OPS CHECK GOOD. OK FOR SERVICE.

Part: UNKNOWN — MALFUNCTIONED (HF COMM) · airframe 39,362 hrs · 11,794 cycles

HF NR 1 PANEL 'FAIL' SHOWN ON BOTH FREQUENCY INDICATORS. SYSTEMS HANDBOOK NOTES POSSIBLE TRANSCEIVER FAILURE. NOTE BOTH HF RADIOS VOICE AND SELCAL CHECK GOOD. NA ACTUAL PROBLEMS NOTED DURING USE. GROUNDED - YES. RESET POWER TO HF SYSTEM. PERFORMED BITE PROCEDURE REF FIM 23-11 TASK 801 SYSTEM OPS NORMALLY. ETOPS GROUND VERIFICATION ACCOMPLISHED.

Part: NOT REPORTED — MALFUNCTIONED (FUEL SYSTEM) · airframe 39,254 hrs · 11,770 cycles

WHILE PERFORMING TASK CARD, FOUND FAULT MSG NR: 73-31072 THE FUEL FILTER SIGNALS DISAGREE NR 2 ENG LONGTIME. GROUNDED - YES. FAULT DEFERRED PER T/C 78273000 FOR 450 FLT HRS. WHILE PERFORMING CDU FAULT CHECK. NO FAULTS NOTED ON NR 2 ENG. THIS CLEARS "PLT".

Part: FITTING — CRACKED (FUSELAGE) · airframe 38,815 hrs · 11,658 cycles

FWD CARGO AFT BAFFLE CLIP STA 500H RT IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED BAFFLE CLIP IAW SRM 51 40 05 0G 0.

Part: BAFFLE — CRACKED (FUSELAGE) · airframe 38,815 hrs · 11,658 cycles

FWD PIT BAFFLE RT SIDE STA 500D - 500E IS CRACKED. GROUNDED - YES. REMOVED AND REPLACED FWD CARGO BAFFLE RT STA 500D - 500E IAW SRM 51 40 05 0G 0 AND SRM 51 40 02 0G 0.

Part: FITTING — CRACKED (FUSELAGE) · airframe 38,815 hrs · 11,658 cycles

FWD CARGO COMP BAFFLE CLIP AT STA 500H IS CRACKED RT SIDE. GROUNDED - YES. REMOVED/REPLACED FWD BAFFLE CARGO CLIP AT STA 500H RT SIDE IAW SRM 51 40 50 0G 0 AND SRM 51 40 02 0G 0.

Part: FITTING — CRACKED (FUSELAGE) · airframe 38,815 hrs · 11,658 cycles

FWD CARGO COMP BAFFLE CLIP AT STA 500H IS CRACKED, LT SIDE. GROUNDED - YES. REMOVED AND REPLACED FWD CARGO BAFFLE CLIP AT STA 500H LT SIDE IAW SRM 51 40 05 0G 0 AND SRM 51 40 02 0G 0.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 38,815 hrs · 11,658 cycles

LEFT HORIZ LOWER SKIN IS CRACKED AT RIB STA 184.70 APPROX 10" FROM REAR SPAR. GROUNDED - YES. REPAIRED L/H HORIZ STAB SKIN IAW 737 800 SRM 55 10 01 2R 11 REPAIR IS A CATEGORY B WITH AN INSP. THRESHOLD OF 56,000 CYCLES AND REINSPECT EVERY 9,000 CYCLES.

Part: FLOORBEAM — CORRODED (FUSELAGE) · corrosion level 2 · airframe 38,815 hrs · 11,658 cycles

FLOORBEAM AT STA 986 HAS CORR ON SCREW HOLE AT RBL 64. GROUNDED - YES. REPAIRED FLOORBEAM AT STA 986, RBL 24, IAW SRM 53 70 57 2R 6, STEP 4 W 1 O .150 R .120 L 1" D .030.

Part: SUPPORT ANGLE — CORRODED (FUSELAGE) · airframe 38,815 hrs · 11,658 cycles

AFT CARGO COMP RT FLOOR SUPPORT ANGLE FROM STA 767 TO 787 HAS CORR. GROUNDED - YES. REMOVED CORR FROM AFT CARGO COMPT. RT FLOOR SUPPORT ANGLE FROM STA 767 TO 787, FOUND TO BE OUT OF LIMITS IAW SRM 53 60 15 1A 1 FIG 103 DETAIL D, REMOVED AND REPLACED AFT CARGO COMP. RT FLOOR SUPPORT ANGLE FROM STA 767 TO 787 IAW SRM 51 40 02 0G 0 FIG 1 AND PARA 5 W 1.50 O .050 R .042 L 2 D .008.

Part: CHANNEL — CORRODED (FUSELAGE) · airframe 38,815 hrs · 11,658 cycles

AFT CARGO COMP LT Z CHANNEL FROM STA 727A TO 787 HAS MULTIPLE AREAS OF CORR. GROUNDED - YES. REMOVED AND REPLACED LT Z CHANNEL FROM STA 727 TO 847 IAW SRM 53 00 53 2R 6 W .5 O .040 R 0 L 1.1 D .040.

Part: CHANNEL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 38,815 hrs · 11,658 cycles

AFT CARGO COMP FLOOR SUPPORT CHANNEL ON FRAME 767 HAS CORROSION. GROUNDED - YES. REMOVED CORR AND CHECKED LIMITS FOUND TO BE OUT OF LIMITS IAW SRM 53 60 15 A 1. REMOVED AND REPLACED CHANNEL (WEB) IAW SRM 51 40 02 0G 0 W 0.5 O .050 R .040 L 1 D .010.

Part: CHANNEL — CORRODED (FUSELAGE) · airframe 38,815 hrs · 11,658 cycles

AFT CARGO COMP RT Z CHANNEL FROM STA 727A TO 767 HAS MULTIPLE AREAS OF CORR. GROUNDED - YES. REMOVED AND REPLACED RT Z CHANNEL FROM STA 727 TO 767 IAW SRM 53 00 53 2R 6 W 0.5 O .040 R .020 L 1.2 D .020.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 38,815 hrs · 11,658 cycles

RIGHT HORIZ STAB LOWER SKIN IS CRACKED AT STA 167.10 APPROX 8" FWD OF AFT SPAR. GROUNDED - YES. REPAIRED R/H HORIZ. STAB SKIN IAW 737 800 SRM 55 10 01 2R 11 REPAIR IS A CATEGORY B WITH INSP. THRESHOLD OF 56,000 CYCLES AND REINSPECT EVERY 9,000 CYCLES.

Part: UNKNOWN — MALFUNCTIONED (AUTOTHROTTLE SYS) · airframe 38,281 hrs · 11,501 cycles

A/T DISENGAGED INFLIGHT WOULD NOT REENGAGE. GROUNDED - YES. CHECKED THE A/T FAULT HISTORY AND FOUND FAULT 22-31687 (ASM1) RECORDED ON TWO LEGS ON 9/10/18. PERFORMED FIM 22-31 TASK 805 WITH NO ACTIVE FAULTS NOTED. PERFORMED AN A/T OP-TEST PER AMM 22-31-00-710-801. CHECKS GOOD. PERFORMED AN ASM OP TEST PER AMM 22-31-00-710-802. CHECKS GOOD.

Part: ANTI-ICE VALVE — STUCK (NR 2 ENGINE) · airframe 37,869 hrs · 11,370 cycles

NR 2 ENGINE ANTI-ICE COWL VALVE WAS STUCK IN THE OPEN POSITION. ACFT GROUNDED. INSPECTED THE NR 2 ENG ANTI-ICE VALVE. ACCOMPLISHED INITAL OPS CHECKS IAW AMM 30-21-00. BOTH APU AND ENG SOURCE NORMAL. INDICATION VALVE OPS CHECKED OKAY.

Part: FAULT MESSAGE — FALSE INDICATION (COCKPIT) · airframe 37,860 hrs · 11,366 cycles

AFTER LANDING CAPTAIN'S INBOARD DU WAS GETTING INTERMITTEN VTK FLAG. GROUNDED - YES. PERFORMED FIM 34-61 TASK 801. NO FAULTS NOTED FIM TASK 34-61 TASK 836 LIST VTK FLAG AS NUISANCE FAULT AND A/C REBOOTED AND CLEARED W/ NO FAULTS NOTED.

Part: ENGINE — DIRTY (NR 1) · airframe 37,728 hrs · 11,323 cycles

ON TAKEOFF FROM LAS AT GEAR RETRACTION NOTICED NR 1 ENG EGT GAUGE RED INDICATING 917 DEG C. REDUCED POWER ON ENGINE TO APPROX 97% N1 AND EGT RETURNED TO NORMAL. 27K BUMP TO, 32 DEG C AT KLAS. GROUNDED - YES. ACCOMPLISHED NR 1 ENGINE GAS PATH WASH WITH WATER REF AMM 72-00-00-100-803-F00 & ENGINE IDLE & HIGH POWER RUN. ACCOMPLISHED HPT BLADES BSI REF FIM 71-06 TASK 804 E3, AMM 72-00-00200-807-F00 & 72-00-00-980-801-F00. NO DEFECTS FOUND. ACCOMPLISHED FIM 71-06 TASK 804, EGT WITHIN LIMITS PER TEST 5 ITEM 7(4).

Part: AUTOPILOT SYS — MALFUNCTIONED (A) · airframe 37,345 hrs · 11,211 cycles

AUTOPILOT A DISCONNECTED DURING CRUISE, WITH ALL OTHER INDICATIONS NORMAL. AUTOPILOT A WAS ENGAGED BUT DISCONNECTED EARLY DURING DESCENT, AUTOPILOT B USED FOR REMAINDER OF FLIGHT. ACFT GROUNDED. FLIGHT FAULT REVIEW LOGGED MCP DATA INV, MESSAGE 22-11607, ACCOMPLISHED DFCS MCP TEST IAW FIM 22-11, TASK 803, NO CURRENT FAULT ALL TEST OPS CHECKS PASSED.

Part: BLADE — WORN (NR 1 ENGINE) · airframe 37,256 hrs · 11,181 cycles

WHILE ACCOMPLISHING FAN BLADE LUBE, T/C 78472002 ON NR 1 ENG FOUND 4 EA BLADES 6, 7,13,14 WITH CU-NI-IN COATING WORN BEYOND LIMITS. GROUNDED - YES. REMOVED AND REPLACED FAN BLADES 1 2 6 7 13 14, AND 18 REF AMM 72-12-02-401 AND T/C 78472002.

Part: PAINT — MISSING (NR 1 ENGINE) · airframe 37,248 hrs · 11,177 cycles

WHILE ACCOMPLISHING FAN BLADE LUBE ON NR 1 ENG T/C 78472002, FOUND FRONT SPINNER WITH MISSING PAINT. GROUNDED - YES. ON DEFERRAL.

Part: SHIM — WORN (NR 1 ENGINE) · airframe 37,256 hrs · 11,181 cycles

WHILE ACCOMPLISHING FAN BLADE LUBE T/C 78472002, ON NR 1 ENGINE FOUND ALL SHIMS WORN INTO PARENT MATERIAL. GROUNDED - YES. REMOVED AND REPLACED ALL FAN BLADE SHIMS ON NR 1 ENGINE, REF AMM 72-21-02/401.

Part: STOP PIN — DAMAGED (NR 2 ENGINE) · airframe 37,199 hrs · 11,161 cycles

DURING ACCOMPLISHMENT OF T/C 78472002, ON THE NR 2 ENGINE, FOUND THE ELASTOMER STOP PINS ON THE RETAINING FLANGE DAMAGED. ACFT GROUNDED. REPLACED THE ELASTORMER STOP PINS.

Part: SEAL — DEBONDED (NR 2 ENGINE) · airframe 37,199 hrs · 11,161 cycles

DURING ACCOMPLISHMENT OF T/C 78472002, FOUND 21 PLATFORMS WITH DISBONDED ELASTORMER SEALS ON THE NR 2 ENGINE. ACFT GROUNDED. REPLACED THE PLATFORMS IAW T/C 78472002.

Part: BLADE — DAMAGED (NR 2 ENG FAN) · airframe 37,199 hrs · 11,161 cycles

DURING THE ACCOMPLISHMENT OF T/C 78472002, ON THE NR 2 ENGINE, FOUND THEN NR 7 FAN BLADE AFT SHANK CU-NI COATING DAMAGE BEYOND LIMITS ON CONCAVE SIDE. ACFT GROUNDED. REPLACED THE NR 7 AND 19 BLADES.

Part: CONTROL PANEL — FAILED (AUTOTHROTTLES) · airframe 37,129 hrs · 11,141 cycles

AUTOTHROTTLE WILL NOT ENGAGE. ACFT GROUNDED . AUTOTHROTTLE CURRENT STATUS TEST PASSED. MULTIPLE AUTOTHROTTLE 28 VDC POWER INVERTER FAULTS LOGGED ON DIFFERENT LEGS. IAW SSM 22-31-51 VERIFIED GOOD VOLTAGE AT MCP CONNECTOR D301. REMOVED AND REPLACED MODE CONTROL PANEL IAW AMM 22-11-34, OPS CHECKED NORMAL.

Part: LIGHT — INOPERATIVE (CONTROL PANEL) · airframe 36,507 hrs · 10,966 cycles

THE LIGHT ON THE VNAV BUTTON AND THE A/T ARM LIGHT ON THE MCP WERE INOPERATIVE. ACFT GROUNDED. REMOVED AND REPLACED DFCS MODE CONTROL PANEL IAW AMM 22-11-34. MCP INSTALLATION TESTED GOOD IAW AMM 22-11-34. LRU REPLACEMENT TESTED FOR MCP, BITE TEST GROUP 32, TESTED NORMAL. DFCS LAND VERIFY, BITE TEST GROUP 49 TESTED NORMAL IAW AMM 22-11-00/201.

Part: CIRCUIT BREAKER — OPEN (WINDOW HEAT) · airframe 36,246 hrs · 10,896 cycles

FORWARD LEFT WINDSCREEN OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. IAW FIM 30-41 / 801. PERFORMED A BITE CHECK OF WINDOW HEAT CONTROL SYSTEM. LOGGED BUSS POWER FAULT, FOUND THE CIRCUIT BREAKER AT P6-12 OPEN IAW AMM 20-60-01. INSPECTED THE CIRCUIT BREAKER, NO DEFECTS NOTED. RESET THE BREAKER AND SYSTEM OPS NORMAL.

Part: HF COMM — MALFUNCTIONED (NR 2) · airframe 36,240 hrs · 10,895 cycles

CAPTAIN`S AND FIRST OFFICER`S COMMUNICATION PANELS DISPLAY FAILED WHEN HF 2 IS SELECTED. ACFT GROUNDED. CYCLED THE HF 2 CIRCUIT BREAKER P6-1 D2, SYSTEM RESTORED TO NORMAL. ACCOMPLISHED HF OPS TEST IAW AMM 23-11-00-710-801. GROUND VERIFICATION TEST PASSED, NO HISTORY PAST 30 DAYS.

Part: CONTROL VALVE — FAILED (RT A/C PACK) · airframe 36,050 hrs · 10,832 cycles

ZONE TEMP CONT CAB ILLUMINATES ON RECALL GOES OUT WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED PACK TEMP CONTROL BITE IAW FIM 21-62 TASK 801. NR 1 CONTROLLER SHOWS FLT DECK TRIM VALVE ON BITE, PREVIOUS FLT AND VERIFY. REMOVED & REPLACED THE CONTROL CABIN TRIM AIR VALVE IAW AMM 21-61-21. BITE CHECKED GOOD, LEAK CHECKED GOOD, OPS CHECKED GOOD.

Part: PUMP — LEAKING (NR 2 FUEL) · airframe 35,883 hrs · 10,782 cycles

FUEL LEAK FROM THE NR 2 ENGINE. ACFT GROUNDED. ACCOMPLISHED TEST 3A AT IDLE POWER, LEAK CHECKED IAW AMM 71-00-00-700-801-F00. FOUND LEAK FROM FUEL PUMP PAD DRAIN. LEAK IS AT 38 DROPS PER MINUTE. REMOVED AND REPLACED THE NR 2 ENGINE FUEL PUMP IAW AMM 73-11-01-000-801-F00, AND TC N8473000 FOR REMOVAL AND AMM 73-11-01-400-801-F00 AND TC N8473001 FOR INSTALLATION. TESTED THE NR 2 ENGINE IAW AMM 73-34-01-400-801-F00 & 71-00-00-800-811-F00, TABLE 502. GROUND VERIFICATION REPAIR CONFIRMATION SUCCESSFUL IAW AMM 71-71-00-200-801-F00.

Part: APU — SHUTDOWN (APU BAY) · airframe 35,830 hrs · 10,766 cycles

AFTER APU START, RAN FOR 2 MINUTES THEN SHUTDOWN ON ITS OWN. GROUNDED - YES. FOUND CDU CODE 49-41011, NO FLAME SHUTDOWN, STARTED APU OPS NORMAL.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 35,619 hrs · 10,701 cycles

DURING A PRE-FLIGHT INSPECTION, LENS ON INTERIOR EXIT LIGHT AT SEAT 17A, MISSING. ACFT GROUNDED. REPLACED THE LENS IAW EA-19797.

Part: SATCOM — MALFUNCTIONED · airframe 35,448 hrs · 10,652 cycles

USED SATCOM DURING FLIGHT, RECEIVED OK, UNABLE TO TRANSMIT ON BOTH SAT 1 OR SAT 2, ATTEMPTED NUMEROUS TIMES. ACFT GROUNDED. RAN THE SYSTEM TEST IAW AMM 23-15-00, SYSTEM OP CHECKED GOOD.

Part: AUTOLAND SYS — MALFUNCTIONED · airframe 35,307 hrs · 10,612 cycles

DURING AUTOLAND FLARE NOSE OF A/C PITCHED LEFT RESULTING IN A TOUCHDOWN APPROX 45' LEFT OF CENTERLINE AND NOSE POINTING LEFT. ONCE MAIN GEAR TOUCHED, RIGHT RUDDER NEEDED APPLICATION TO KEEP FROM CONTINUING OFF RUNWAY. ACFT GROUNDED. ACCOMPLISHED DFCS BITE PROCEDURE FIM 22-11 TASK 801. NO FAULTS FOUND. PERFORMED FIM 22-11 TASK 825. AIRPLANE ALIGNMENT PROBLEM. PERFORMED LAND VERIFY, AMM TASK 22-11-00. ALL TESTS PASSED. ACCOMPLISHED THE FOLLOWING: (A) BITE LIBRARY TEST, AMM TASK 22-11-00-740-806 (ALL LIBRARY TESTS, CHANNELS A & B). (B) FLIGHT CONTROL COMPUTER INSTALLATION, AMM TASK 22-11-33-400-801 SUBTASK 22-11-33-740-001 - LRU REPLACEMENT TEST FOR FCC. ALL TESTS PASSED.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 35,192 hrs · 10,581 cycles

ON DEPARTURE AUTO FAIL LIGHT ALONG WITH ALTN LIGHT ILLUM FOLLOWED QRH AND RAN PRESSURIZATION IN ALT POSITION. PRESSURE NORMAL. GROUNDED - YES. FOUND "CABIN RATE HI" FAULT LOGGED ON #1 CPC. PERFORMED BITE TEST PER B737-800 AMM TASK 21-31-00-700-802 GND BITE TEST OK. RESET #1 CPC. NO FAULTS LOGGED. ON FURTHER CONSULT W/ CREW CAPT INDICATED HIGH RATE OF ASCENT T.O.. OK FOR CONTINUED SERVICE. NO FAULT HISTORY LAST 30 DAYS.

Part: BULKHEAD WEB — CRACKED (BS 663) · airframe 35,150 hrs · 10,563 cycles

REF LP #11707357, R/H W/W FWD BULKHEAD PRESSURE DECK APPROX STA 663.75 WL 195 RBL 41 HAS CRACK IN ALUMINUM WEB. GROUNDED - YES. ACCOMPLISHED A CATEGORY "B" REPAIR ON R/H W/W FWD BULKHEAD PRESSURE DECK APPROX STA 663.75 WL 195 RBL 41 IAW 737-800 SRM 57-10-10-2R-3 ALTERNATIVE 2 CATEGORY B, INSPECTION THRESHOLD 56,000 CYCLES AFTER REPAIR INSTALLATION AND 36,000 FLIGHT CYCLE INTERVALS

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 35,045 hrs · 10,533 cycles

RIGHT FWD WINDOW HEAT OVERHEAT LIGHT ILLUMINATED AT FL380 SWITCH PLACED IN OFF POSITION FOR 5 MINUTES. WHEN PLACED TO ON POSITION NORMAL OPS. GROUNDED - YES. ACCOMPLISHED WHCU BITE, NO CURRENT FAULTS. HISTORY SHOWED NUMEROUS REPEATS ON WINDOW HEAT SENSOR FAIL. REF FIM 30-41-00-810-801. PLACED WINDOW SENSOR SELECT SWITCH TO OTHER SENSOR POSITION, NO CURRENT FAULTS NOTED, BITE NORMAL.

Part: DISPLAY — FAILED (ISFD) · airframe 34,587 hrs · 10,406 cycles

ISFD FAILURE DURING CLIMB OUT. SHOWED A TURNING DECENT. ACFT GROUNDED. REMOVED AND REPLACED ISFD IAW AMM 34-24-02-400-801. OPS TESTED NORMAL.

Part: WIRE HARNESS — DAMAGED (NR 1 ENGINE) · airframe 34,577 hrs · 10,404 cycles

NR 1 ENGINE FILTER BYPASS LIGHT ILLUMINATED. ACFT GROUNDED. IAW WDM 73-31-11 WHILE SHAKING DOWN HARNESS NEAR DP0803 NR 1 ENG FUEL FILTER BYPASS LIGHT ON P5-2 FLICKERS ON & OFF. ACCOMPLISHED EEC TEST FOR THE NR 1 ENGINE, FOUND 73-31071. REMOVED, REPLACED AND TESTED THE NR 1 ENG J8 HARNESS IAW AMM 73-21-06-400-801-F00, TESTS PASSED.

Part: CONNECTOR — LOOSE (NR 1 ENGINE) · airframe 34,577 hrs · 10,404 cycles

DURING TROUBLESHOOTING, FOUND THE NR 2 ENGINE CONNECTOR DP0803 TO BE LOOSE. ACFT GROUNDED. REMOVED, INSPECTED, CLEANED, INSTALLED, AND TESTED THE CONNECTOR DP0803. ALL TESTS PASSED.

Part: PUMP — FAILED (FUEL BOOST) · airframe 34,562 hrs · 10,395 cycles

CENTER, RIGHT FUEL PUMP SHOWING LOW PRESSURE, CTR TANK SHOWS 2340 LBS. ACFT GROUNDED. REMOVED AND REPLACED THE FUEL PUMP IAW AMM 28-22-41. OPS CHECKED FAILED. HAS A HUMMING SOUND. NO VISIBLE DEFECTS NOTED ON CONNECTOR OR WIRING. PRIMMED THE BOOST PUMP IAW AMM 28-22-41-420-801. ACCOMPLISHED FUEL BOOST PUMP OPERATIONAL TEST IAW AMM 28-22-41-710-801. OPS CHECKED GOOD. NO ABNORMAL NOISES NOTED.

Part: PUMP — FAILED (FUEL BOOST) · airframe 34,545 hrs · 10,391 cycles

DURING PREFLIGHT, RIGHT CENTER TANK FUEL BOOST PUMP LOW PRESSURE LIGHT REMAINS ILLUMINATED WITH PUMP SWITCH ON. ACFT GROUNDED. ACCOMPLISHED A BOOST PUMP REMOVAL AND REPLACEMENT IAW AMM 28-22-41-000-801, AND AMM 28-22-41-400-801. ACCOMPLISHED AN OPS TEST IAW AMM 28-22-41-710-801. ALL OPS TESTS NORMAL.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW HEAT) · airframe 34,541 hrs · 10,390 cycles

RIGHT FWD WINDOW OVERHEAT LIGHT ILLUMINATED. TURNED SWITCH OFF FOR 5 MINUTES IAW QRH. OPS NORMAL AFTER TURNING BACK ON. ACFT GROUNDED. ACCOMPLISHED WINDOW HEAT SYS. OPS TEST & BITE TEST OF RT FWD WINDOW HEAT CONTROL UNIT. SYS OPS TESTED GOOD & NO FAULTS DETECTED. OK FOR CONTINUED SERVICE.

Part: CONTROL UNIT — FAILED (WINDOW HEAT) · airframe 34,499 hrs · 10,375 cycles

OVERHEAT LIGHT ILLUMINATED ON RIGHT SIDE WINDOW HEAT. RAN QRH PROCEDURE. LIGHT EXTINGUISHED. CONTINUED NORMAL OPS. ACFT GROUNDED. PERFORMED WHCU BITE IAW FIM 30-41, TASK 801. FOUND WHCU LRU AND WINDOW POWER FAULTS IN FAULT HISTORY. REMOVED AND REPLACED THE RT WINDOW HEAT CONTROL UNIT IAW AMM 30-41-11. OPS CHECKED GOOD.

Part: ATTACH FITTING — LOOSE (FWD ENTRY DOOR) · airframe 34,339 hrs · 10,322 cycles

L1 DOOR RELEASE LATCH STUCK WITH DOOR OPEN. ACFT GROUNDED. LUBRICATED THE L1 DOOR HOLD OPEN LATCH, BUT STILL STICKS. A LOUD POP WHILE CLOSING DOOR FROM UPPER HINGE AREA. L1 DOOR GUIDE ARM ATTACH FITTING LOOSE. TORQUED THE FITTING. NO MORE POPPING IAW CMM 52-16-12 PG 702. REMOVED AND REPLACED GUIDE ARM PIN. LATCH CHECKED GOOD.

Part: WARNING MESSAGE — FALSE ACTIVATION (WINDOW OVERHEAT) · airframe 34,276 hrs · 10,297 cycles

ON SHORT FINAL, RIGHT SIDE WINDOW OVERHEAT ILLUMINATED. PERFORMED THE QRH. TURNED AFFECTED WINDOW HEAT OFF (RIGHT SIDE WINDOW) WAITED 5 MINUTES & TURNED AFFECTED WINDOW HEAT ON. OVERHEAT LIGHT STAYED EXTINGUISHED. ACFT GROUNDED.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 34,069 hrs · 10,236 cycles

LEFT PACK LIGHT ILLUMINATED ON RECALL. THE LIGHT EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED FIM 21-62, TASKS 848, & 801. NO FAULTS FOUND.

Part: START VALVE — FAILED (NR 2 ENGINE) · airframe 34,012 hrs · 10,222 cycles

AFTER STARTING ENG NR 2, START VALVE SWITCH TRIPPED OFF BUT START VALVE OPEN LIGHT REMAINED ILLUMINATED. PERFORMED QRH PROCEDURE AND VALVE REMAINED OPEN. CB VERIFIED IN. GROUNDED - YES. REMOVED NR 2 ENG START VLV REF AMM 80-11-030-000-801-F00. INSTALLED START VALVE ON ENG NR 2 REF AMM 80-11-03-400-801-F00 OPS CK GOOD NO LK NOTICED.

Part: MOTOR — FAILED (STAB TRIM) · airframe 33,787 hrs · 10,149 cycles

ON DEPARTURE NEITHER YOKE WOULD WORK, REFERENCED QRH, AUTOPILOT WAS ENGAGED AND AUTOPILOT TRIM WOULD NOT WORK. RAN QRH AND LANDED UNEVENTFULLY. ACFT GROUNDED. VERIFIED TRIM MOTOR INOP NO C.B.'S OUT, REMOVED & REPLACED STAB TRIM MOTOR AMM 24-41-71 PULLED & RESET 3 ASSOCIATED CIRCUIT BREAKERS. ACCOMPLISHED AN OPS CHECKED AND FOUND NO FAULTS.

Part: VALVE — FAILED (NR 1 ENGINE) · airframe 33,737 hrs · 10,132 cycles

APPLIED TAKEOFF POWER, LEFT PACK BLEED TRIPPED OFF LIGHT ILLUMINATED. LOW SPEED 10KTS, ABORTED, PULLED OFF RUNWAY. COMPLETED BLEED TRIP OFF QRC. CALLED MAINTENANCE CONTROL, RETURNED TO GATE. ACFT GROUNDED. ACCOMPLISHED FIM 36-10 TASK 811. FOUND THE LT HIGH STAGE VALVE NOT FULLY CLOSED. REPLACED THE HIGH STAGE VALVE IAW AMM 36-11-06. REMOVED & REINSTALLED HIGH STAGE REGULATOR IAW AMM 36-11-07. OPS CHECKED NORMAL.

Part: VALVE — FAULTED (LT WING) · airframe 33,713 hrs · 10,125 cycles

APU FAULT LIGHT ON ATTEMPTED START. STAYED ILLUMINATED, NO RESTART ATTEMPTED. ACFT GROUNDED. REMOVED AND REPLACED APU SHUTOFF VALVE IAW AMM 28-25-02, APU OPS CHECKED GOOD AND APU CURRENT STATUS SHOWS NO FAULTS. VERIFIED INSTALLED APU SHUTOFF VALVE.

Part: WARNING LIGHT — FALSE ACTIVATION (BLEED) · airframe 33,622 hrs · 10,090 cycles

DURING A BLEEDS OFF TAKEOFF, LEFT BLEED TRIP OFF LIGHT ILLUMINATED. RAN QRH BLEED TRIP OFF CHECKLIST, LIGHT EXTINGUISHED. CABIN PRESSURIZATION NORMAL AND NO DUCT PRESSURE SPLIT. ACFT GROUNDED. PERFORMED FIM 36-10 TASK 801 BLEED TRIP OFF CAN COME ON IF BLEED SWITCH IS SELECTED ON IMMEDIATELY AFTER NO BLEED TAKE OFF. IF LIGHT CAN BE RESET, NO MAINTENANCE ACTION NECESSARY. OK FOR SERVICE.

Part: ACTUATOR — FAILED (RT RAM AIR) · airframe 33,330 hrs · 10,003 cycles

RIGHT PACK LIGHT ILLUMINATED INFLIGHT, WOULD NOT COOL DOWN. SHUTOFF PACK IAW QRH PROCEDURES. ACFT GROUNDED. CONFIRMED FAULT, RT PACK-ZONE TEMP CONTROLLER BITE TEST SHOWS HARD FAIL FOR THE RT RAM AIR ACTUATOR, WOULD NOT RESET. LT PACK-ZONE TEMP CONTROLLER SHOWS NO FAULTS. REMOVED & REPLACED THE RT RAM AIR ACTUATOR IAW AMM 21-51-21, GROUND FUNCTIONAL CHECK NORMAL IAW AMM 21-61-00-700-806-002.

Part: CONTROL VALVE — FAULTED (RT A/C PACK) · airframe 33,314 hrs · 9,999 cycles

CONTROL CABIN ZONE TEMP ILLUMINATES ON MASTER CAUTION RECALL, EXTINGUISHES ON RESET. ACFT GROUNDED. CONFIRMED FAULT, RT PACK - ZONE TEMP CONTROLLER BITE SHOWS HARD FAIL FOR FLIGHT DECK TCV. REMOVED & REPLACED TCV (V143) IAW AMM 21-61-21, LEAK & GROUND FUNCTIONAL CHECKS NORMAL IAW AMM 21-61-00-700-806-002.

Part: ENGINE — HUNG START (NR 1) · airframe 33,176 hrs · 9,946 cycles

NR 1 ENGINE HUNG START. FUEL FLOW AND EGT NORMAL. HUNG 45% N2. ACFT GROUNDED. PERFORMED FIM TASK 74-21, TASK 806, NO FAULTS NOTED. PERFORMED FIM TASK 73-00, TASK 801. NO DEFAULTS. NO RECENT FAULTS. NO FAULT HISTORY. PERFORMED NR 1 ENGINE RUN FOR 5 MINUTES, NORMAL START, NORMAL PARAMETERS. PERFORMED NR 1 ENGINE IGNITION TEST FROM CAPTAIN'S LRU. NO FAULTS. BOTH IGNITERS MAKE A POPPING NOISE.

Part: CONTROL PANEL — FAILED (SATCOM) · airframe 32,798 hrs · 9,829 cycles

ATTEMPTED TEST CALL ON SAT 1 & SAT 2. WE COULD HEAR DISPATCH BUT THEY COULD NOT HEAR US. ACFT GROUNDED. REMOVED AND INSTALLED A NEW SATCOM TRANSFER PANEL IAW AMM 23-15-00. PERFORMED SYSTEM TEST IAW AMM 23-15-00-730-801, SYSTEM CHECKED NORMAL. PERFORMED HF OPS TEST IAW AMM 23-11-00, SYSTEM CHECKED NORMAL.

Part: TRANSCEIVER — MALFUNCTIONED (SATCOMS) · airframe 32,781 hrs · 9,823 cycles

UNABLE TO RECEIVE VOICE COMMS ON SAT 1 OR 2. CALLING PARTY COULD HEAR US, BUT WE COULDN'T HEAR THEM. ACFT GROUNDED. UNABLE TO DUPLICATE. REMOVED, REPLACED, AND TESTED SATCOM TRANSCEIVER IAW AMM 23-15-00. TEST PASSED. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

Part: FMC — MALFUNCTIONED · airframe 32,774 hrs · 9,822 cycles

FMC DISAGREE AFTER LANDING. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. FMC OPS RESTORED NORMAL.

Part: CONTROL VALVE — FAILED (RT A/C PACK) · airframe 32,560 hrs · 9,773 cycles

DURING CLIMBOUT ABOVE FL 200, THE RT PACK LIGHT ILLUMINATED. SUCCESSFULLY RESET SEVERAL TIMES ONLY TO HAVE LIGHT ILLUMINATE AGAIN WITHIN TWO MINUTES. ONCE AT CRUISE ALTITUDE, IAW QRH, TURNED THE RT PACK OFF WITH ISOLATION VALVE CLOSED. ACFT GROUNDED. ACCOMPLISHED A PACK/ZONE TEMPERATURE CONTROLLER BITE TEST IAW AMM TASK 21-61-00-700-806-002. FOUND TEMP CONTROL VALVE FAULT ILLUMINATED FOR THE RT PACK. REMOVED AND REPLACED THE TEMPERATURE CONTROL VALVE. LEAK & OPS CHECKED GOOD AND BITE CHECKED GOOD. NO FAULTS ILLUMINATED AT THIS TIME IAW AMM 21-51-10-400-801.

Part: SATCOM — MALFUNCTIONED · airframe 32,348 hrs · 9,718 cycles

UNABLE TO RECEIVE AUDIO TRANSMISSIONS ON SATCOM 1 OR 2. COULD TRANSMIT. ACFT GROUNDED. RESET SYSTEM, OPS CHECKED GOOD IAW AMM 23-15-00-730-801.

Part: LENS — BROKEN (EMERGENCY LIGHT) · airframe 32,113 hrs · 9,658 cycles

FWD ENTRY FLOOR LIGHT BY L1 DOOR LENS BROKEN. ACFT GROUNDED. REPLACED THE LENS.

Part: PIN — BROKEN (L1 DOOR) · airframe 31,807 hrs · 9,575 cycles

L1 DOOR WOULD NOT OPEN. HANDLE ROTATED AND DOOR CAME IN BUT WOULD NOT TURN AND OPEN OUT. OPENED AFTER ABOUT 5 MINUTES WITH CAPTAIN ON INSIDE AND MECHANIC ON THE OUTSIDE WORKING THE DOOR FREE. ACFT GROUNDED. FOUND THE L1 DOOR GUIDE PIN MOUNT BROKEN OFF. REASSEMBLED GUIDE ARM PIN IAW AMM 52-11-21.

Part: FLOORBOARD — CORRODED (CARGO BAY) · corrosion level 2 · airframe 31,791 hrs · 9,569 cycles

FWD PIT NR 1 FLOORBOARD 120AF IS CORRODED. GROUNDED - YES. FABRICATED NEW FLOOR PANEL IAW SRM 51 30 01 0G 0 AND 51 30 05 0G 0 W 2.5 O. 071 R 0 L 20 D .071.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 31,791 hrs · 9,569 cycles

LEFT HORIZONAL STAB LOWER SKIN CARCKED AT HSS 111.1, 11 INCHES FROM T/E. ACFT GROUNDED. REPAIRED IAW SRM 55-10-01-2R-11 REP 11.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 31,751 hrs · 9,560 cycles

LEFT PACK ILLUMINATED. RESET WITH MASTER CAUTION. GROUNDED - YES. LT PACK LOGGED TCV FAULT LAST FLIGHT. PERFORMED B737-800 FIM 21-62 TASK 830 & FAULT CLEARED. GROUND FUNCTIONAL CHECK GOOD.

Part: RADIO — INOPERATIVE (NR 1 HF) · airframe 31,575 hrs · 9,519 cycles

NR 1 HF RADIO INOPERATIVE. ACFT GROUNDED. VERIFIED THE NR 1 HF HAS POWER CIRCUIT BREAKERS. ACCOMPLISHED GROUND VERIFICATION OF NR 1 HF SYSTEM. TRANSMIT AND RECEIVE WAS NORMAL IAW AMM 23-11-21. NO HISTORY 60 DAYS.

Part: SOLENOID — FAULTED (ANTI ICE) · airframe 31,566 hrs · 9,517 cycles

USED ENGINE ANTI ICE DURING DECENT AND LANDING. ON LANDING NOTICED A NR 1 ENGINE COWL VALVE OPEN LIGHT APPEARED BURNED OUT. REPLACED THE BULBS DID NOT FIX, LIGHT WOULD NOT TEST. ACFT GROUNDED. REMOVED AND REPLACED THE LEFT GROUND WING THERMAL ANTI-ICING SOLENOID VALVE IAW AMM 30-11-12-000-801 AND 30-11-12-400-801 OPS TEST PASSED, PERFORMED NR 1 ENGINE COWL ANTI-ICE TEST, TEST PASSED IAW AMM 30-21-11-400-801.

Part: CONTROL VALVE — FAULTED (LT ECS BAY) · airframe 31,548 hrs · 9,503 cycles

LEFT PACK LIGHT ON, AFTER AFTER START FLOW LIGHT GOES OUT AFTER MASTER CAUTION. ACFT GROUNDED. TROUBLE SHOOTING COMMENTS CALL OUT THE LT TEMP CONTROL VALVE AND THE AFT ZONE TRIM MODULATING VALVE. THE BITE ON NR 1 TEMP CONTROLLER CALLS OUT THE LH TEMP CONTROL VALVE. AS PRECAUTION, REMOVED AND REPLACED BOTH THE LT TCV AND THE AFT ZONE TRIM MODULATING VALVE IAW AMM 21-61-21-000-801 AND 21-61-21-400-801. LEAK CHECKED GOOD. GROUND FUNCTIONAL CHECKED GOOD IAW AMM 21-61-21-400-801 PARAGRAPH F.

Part: HINGE — DIRTY (L1 DOOR) · airframe 31,542 hrs · 9,501 cycles

FLIGHT ATTENDANT REPORTS L1 DOOR IS VERY DIFFICULT TO OPEN & CLOSE. GROUNDED - YES. CLEANED/LUBRICATED L1 DOOR HINGES. OPS CHECK NORMAL, REF AMM 52-11-00.

Part: AUTOTHROTTLE SYS — MALFUNCTIONED · airframe 31,467 hrs · 9,484 cycles

AUTOTHROTTLES INOPERATIVE. CIRCUIT BREAKER IS IN. ACFT GROUNDED. VERIFIED CIRCUIT BREAKER. ACCOMPLISHED AUTOTHROTTLE OPS TEST, PASSED, IAW AMM 22-31-00/501, AND 22-0-01-730-801.

Part: WARNING LIGHT — ILLUMINATED (LT A/C PACK) · airframe 31,042 hrs · 9,357 cycles

LEFT PACK LIGHT ILLUMINATED ON RECALL AND DID EXTINGUISH WHEN MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED PACK TEMP CONTROL BITE IAW FIM 21-62 TASK 801, ZONE TEMP CONT NR 1 FAULTED TCV AND ZONE TEMP CONT #2 FAULTED ZONE TRIM VALVE, CLEARED BOTH FAULTS RETESTED AND FAULTS DID NOT COME BACK, LEFT PACK LIGHT DOES NOT ILLUMINATE ON RECALL, NO HISTORY 60 DAYS, GROUND VERIFICATION SUCCESSFUL.

Part: KEYBOARD — DEFECTIVE (DISPLAY UNIT) · airframe 31,031 hrs · 9,351 cycles

CAPTAIN`S LINE SELECT KEYS 2R AND 6R ON MCDU HAVE NO CLICK FEEL MAKING IT DIFFICULT TO TELL WHEN LSK PUSHED. ACFT GROUNDED. REMOVED AND REPLACED FMCS CDU KEYBOARD CAPTAINS SIDE IAW AMM 34-61-01.

Part: SATCOM — MALFUNCTIONED · airframe 31,031 hrs · 9,351 cycles

NO COMM DISPLAYED ON MCDU DESPITE BEING ABLE TO MAKE SAT PHONE CALL TO DISPATCH. ACFT GROUNDED. RESET THE SATCOM CIRCUIT BREAKER. SATCOM OPS NORMAL IAW FIM 23-15 TASK 801.

Part: COVER — MISSING (EMERGENCY LIGHT) · airframe 31,011 hrs · 9,347 cycles

EMERGENCY LIGHT COVER NEAR L1 ENTRY DOOR MISSING. ACFT GROUNDED. REPLACED MISSING LIGHT COVER. LIGHT OPS CHECKED OK.

Part: GENERATOR — FAILED (APU) · airframe 30,953 hrs · 9,327 cycles

FAULT LIGHT DURING APU START. ACFT GROUNDED. REMOVED & REPLACED APU STARTER GENERATOR, IAW AMM 49-41-21. OPS AND LEAK CHECKED GOOD.

Part: IDG — LEAKING (NR 1 ENGINE) · airframe 30,775 hrs · 9,267 cycles

FOLLOW-UP TO NR 1 IDG CONTINUED FREQUENT SERVICING. ACFT GROUNDED. R & R NR 1 IDG, REF AMM 24-11-11-400-801. OPS AND LEAK CHECK GOOD. SAFETIED DISCONNECT.

Part: CONVERTER — FAILED (APU) · airframe 30,734 hrs · 9,252 cycles

APU FAULT LIGHT ON TAXI IN. RAN CHECKLIST & WOULD NOT START. ACFT GROUNDED. R & R APU START CONVERTER UNIT, IAW AMM 49-41-61-401. OPS CHECKED GOOD.

Part: WARNING LIGHT — FALSE ACTIVATION (MULTIPLE) · airframe 30,717 hrs · 9,247 cycles

AFTER START CHECKLIST, WHEN RECALL CHECKED M/C LIGHT, AIR COND LIGHT AND RIGHT PACK LIGHT ILLUMINATED. RESET M/C LIGHT AND AIR CON LIGHT. RIGHT PACK LIGHT EXTINGUISHED. ACFT GROUNDED. . PERFORMED BITE OF PACK/ZONE TEMPERATURE CONTROLLER. NO CURRENT FAULTS AFTER TEST. RESET FAULT HISTORY IAW AMM 21-51-00.

Part: WARNING LIGHT — ILLUMINATED (APU) · airframe 30,629 hrs · 9,218 cycles

APU FAULT LIGHT ILLUMINATED DURING START ATTEMPT. LIGHT EXTINGUISHED ONE MINUTE AFTER SWITCH TURNED OFF. NO SUBSEQUENT START ATTEMPTED. ACFT GROUNDED. PERFORMED APU BITE, FOUND MESSAGE 49-41012, NO ROTATION SHUTDOWN. INSPECTED MAGNETIC CHIP DETECTOR, IAW AMM 49-91-81. NO DEFECTS NOTED AT THIS TIME. PERFORMED SECOND BITE CHECK OF APU, MESSAGE 49-41012 STILL EXISTS IN FAULT AFTER PERFORMING SECOND SUCCESSFUL GROUND START. INFLIGHT APU START ATTEMPT WAS SUCCESSFUL.

Part: SHIM — WORN (NR 1 ENGINE) · airframe 30,562 hrs · 9,203 cycles

NR 1 ENGINE FAN BLADE SHIMS, 24 EA, FOUND TO BE WORN DURING FAN BLADE LUBE T/C 78472002. ACFT GROUNDED. REPLACED, 24 EA FAN BLADE SHIMS ON NR 1 ENGINE IAW T/C 78472002.

Part: CONTROLLER — INOPERATIVE (COCKPIT TEMP) · airframe 30,300 hrs · 9,123 cycles

FLIGHT DECK PRIMARY TEMP CONTROLLER INOPERATIVE. ACFT GROUNDED. PERFORMED BITE OF BOTH PZTC IAW FIM 21-62, TASK 801. UNABLE TO VERIFY, FAULT RESET AND LT PACK LIGHT NO LONGER ILLUMINATES ON RECALL.

Part: SHUTOFF VALVE — FAILED (NR 2 ENGINE) · airframe 30,042 hrs · 9,047 cycles

ON CLIMBOUT RIGHT DUCT PRESSURE 44 PSI, LEFT DUCT 14 PSI. LEVEL OFF RIGHT 44 PSI, LEFT 21 PSI. DESCENT BOTH EVEN AT 40 PSI W/ THROTTLE IDLE. ACFT GROUNDED. ACCOMPLISHED FIM 36-10 TASK 810. L/H PRSOV & PCCV FAIL WRENCH CHECKS. NO OTHER DEFECTS NOTED. REMOVED AND REPLACED LT PRSOV & PCCV. BOTH OPS & LEAK CHECK OK IAW AMM 36-11-04-400 & 36-12-02/400.

Part: FUEL NOZZLE — DEFECTIVE (NR 2 ENGINE) · airframe 29,937 hrs · 9,013 cycles

WHILE PERFOMING MAINTENANCE ON T/C 78273000 FOUND MESSAGE UPPER EGT SECTORS READING HIGH FAULT CODE 73-31372 ON NR 2 END ECONOMIC FAULT. ACFT GROUNDED. FUEL NOZZLES REPLACED IN LOGPAGE 11676460 IAW T/C PWRPL-73CMPT-07267-2.

Part: AUTOPILOT SYS — MALFUNCTIONED (B SYSTEM) · airframe 29,753 hrs · 8,961 cycles

AUTOPILOT B DISENGAGED WHEN INTERMITTENT RA FLASHED BELOW 1,000 ON ILS APPROACH. ACFT GROUNDED. NO CURRENT FAULTS, LAST LEG SHOWED RADIO ALTIMETER DATA INVALID AT 1,295 FT. PERFORMED LRRA DFCS GROUP NR 40, NO DEFECTS NOTED. ALSO PERFORMED LAND VERIFY TEST, REF AMM 22-11-00/201. NO DEFECTS NOTED. ACFT REMAINS AUTOLAND CAT III QUALIFIED.

Part: FUEL NOZZLE — DEFECTIVE (NR 2 ENGINE) · airframe 29,742 hrs · 8,958 cycles

FOUND ECONOMIC FAULT 73-3172 ON NR 2 ENGINE WHILE PERFORMING T/C 78273000. UPPER EGT SECTORS READING HIGH, ESN 894-227. ACFT GROUNDED. ACCOMPLISHED T/C PWRPL-73CMPT-07267-2, REPLACED FUEL NOZZLES. ACCOMPLISHED EEC BITE CK NO FAULTS NOTED, NO LEAKS NOTED, OPS CK GOOD.

Part: SATCOM — MALFUNCTIONED · airframe 29,405 hrs · 8,853 cycles

SAT PROMPT NOT DISPLAYED ON MCD MENU. ACFT GROUNDED. ACCOMPLISHED SATCOM RESET PROCEDURES IAW QRH. SATCOM OPS NORMAL.

Part: SATCOM — INOPERATIVE · airframe 29,313 hrs · 8,833 cycles

SATCOM APPEARS TO BE INOPERATIVE. NO PROMPT ON MENU PAGE. CB NOT TRIPPED. DISPATCH ATTEMPTED CALL. NO JOY. ACFT GROUNDED. CYCLED SATCOM POWER C/B IAW FIM 23-15-00-23-801. SATCOM PROMPT HAS RETURNED TO MCDU'S MENU PAGE. OPS VERIFICATION TEST IS GOOD.

Part: KEYBOARD — FAILED (FMC) · airframe 29,090 hrs · 8,770 cycles

F/O FMC HAS NO FEEDBACK TO PUSH ON BUTTONS: 6L, 3R, 1, 4, CLEAR. ACFT GROUNDED. REPLACED F/O FMCS CDU KEYBOARD, REF AMM 34-61-01-400-801, OPS NORMAL IAW SAME AND IAW AMM 34-61-01-710-801.

Part: SATCOM — MALFUNCTIONED · airframe 28,978 hrs · 8,744 cycles

MISSING SATCOM SELECTION ON THE MCDU MENU PAGE. ACFT GROUNDED. ACCOMPLISHED SATCOM RESET PROCEDURES IAW QRH. SATCOM OPS NORMAL.

Part: STARTER — FAILED (NR 2 ENGINE) · airframe 28,916 hrs · 8,726 cycles

ON NR 2 ENGINE START EGT DID NOT INCREASE AFTER FUEL, QRH PROCESS FOLLOWED. ON SECOND ATTEMPT NR 2 ENGINE WOULD NOT ROTATE, NO N2. ACFT GROUNDED. R & R NR 2 ENGINE STARTER AMM 80-11-01. OPS CHECK NORMAL. LEAK CHECK GOOD.

Part: STARTER — FAILED (NR 2 ENGINE) · airframe 28,844 hrs · 8,704 cycles

AIR STARTING NR 2 ENGINE, HAD START VALVE LIGHT ON BUT NO ROTATION. APU AIR PRESSURE WAS STABLE AT 40 PSI. NR 1 ENGINE STARTED OK FROM APU BLEED AIR. TRIED 3 TIMES TO START NR 2 ENGINE WITH SAME RESULT, START VALVE LIGHT ON, NO ROTATION OF N2. ACFT GROUNDED. REF AMM 80-11-01, R & R NR 2 ENGINE STARTER. OPS CHECKS NORMAL.

Part: STARTER GEN — FAILED (APU) · airframe 28,806 hrs · 8,694 cycles

APU START-GEN UNIT FAILED OPS TEST. WOULD NOT COME ONLINE, FEEDER FAULT. ACFT GROUNDED. R & R APU STARTER-GENERATOR UNIT IAW AMM 49-41-21. LEAK AND OPS TEST GOOD.

Part: COMPENSATOR — FAILED (NR 1 FUEL TANK) · airframe 28,808 hrs · 8,695 cycles

FUELER REPORTED LT UNDER WING FUEL GAUGE FLASHING. ACFT GROUNDED. VERIFIED TANK 1 AND TANK 2 COMPENSATOR BAD FAULTS. R & R NR 1 TANK COMPENSATOR IAW AMM 28-41-21-400-801. REPLACED NR 2 TANK COMPENSATOR UNIT IAW AMM 28-41-21-400-801. FQIS SYS TEST NORMAL, REF AMM 28-41-00-730-801. FQIS COMPARISON CHECK GOOD, REF AMM 28-41-00-720-801. LEAK CHECK OF 532AB, 632AB FUEL PANELS GOOD.

Part: CONNECTOR — DIRTY (NR 2 ENGINE) · airframe 28,770 hrs · 8,684 cycles

ELECTRONIC ENGINE CONTROL RECORDED FAULT 77-10842. ACFT GROUNDED. BEFORE CLEANING, S1-41.07, S2-18.80, S3-18.63, S4-39.04. AFTER CLEANING, S1-34.82, S2-18.23, S3, 17.87, S4-33.23. CLEANED EGT HARNESS IAW AMM 77-21-00-140-801. OPS NORMAL IAW FIM TASK 77-21-801.

Part: HEAT EXCHANGER — CRACKED (LEFT) · airframe 28,770 hrs · 8,684 cycles

LEFT PRIMARY HEAT EXCHANGER CRACKED ON LOWER SURFACE. ACFT GROUNDED. R & R THE LT PRIMARY HEAT EXCHANGER REF AMM 21-51-03-400-804-002. LEAK AND OPS CHECK GOOD.

Part: SWITCH — FAILED (FUEL BYPASS) · airframe 28,765 hrs · 8,682 cycles

NR 2 FUEL FILTER BYPASS LIGHT ILLUMINATED FOR 1 MINUTE AFTER ENGINE START. ACFT GROUNDED. ACCOMPLISHED ELECTRONIC ENGINE CONTROL TEST REF AMM 73-21-00-700-804- F00, OPS TEST GOOD. R & R THE NR 2 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF AMM 73-34-01-000-801-F00 AND AMM 73-34-01-400-801-F00, STEP D THROUGH F. 2,D. OPS TEST GOOD. LEAK CHECK OF THE NR 2 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH GOOD, REF AMM 71-00-00-700-801-F00.

Part: RADIO — MALFUNCTIONED (NR 2 HF) · airframe 28,746 hrs · 8,678 cycles

NR 2 HF RADIO APPEARS TO BE INOPERATIVE. WILL NOT TRANSMIT OR RECEIVE. ACFT GROUNDED. CYCLED HF/SAT LIGHTED SWITCH. NR 2 HF OPS NORMAL REF AMM 23-11-00.

Part: WARNING LIGHT — FALSE ACTIVATION (WIDOW OVERHEAT) · airframe 28,694 hrs · 8,665 cycles

AT CRUISE, LT FORWARD WINDOW OVERHEAT LIGHT ILLUMINATED. QRH PROCEDURE WAS NOT EFFECTIVE. ACFT GROUNDED. FOUND WINDOW HEAT POWER LEFT FRONT, C/B OPEN, ACCOMPLISHED GVI, NO DEFECTS NOTED, RESET C/B REF AMM 20-60-01. ACCOMPLISHED WINDOW HEAT SYSTEM OPS TEST REF AMM 30-41-00. OPS NORMAL.

Part: ENGINE — SHUTDOWN (NR 2) · airframe 28,518 hrs · 8,619 cycles

AFTER ENGINE SHUTDOWN NR 2 ENGINE BLUE "COWL VALVE OPEN" REMAINED ILLUMINATED BRIGHT BLUE. ACFT GROUNDED. RAN NR 2 ENGINE, PERFORMED OPS CHECK ENGINE ANTI-ICE NR 2 ENGINE, OPS CHECKED GOOD IAW AMM 30-21-00, NO DISCREPANCIES NOTED.

Part: COMPRESSOR — DIRTY (NR 1 ENGINE) · airframe 28,502 hrs · 8,615 cycles

AFTER ENGINE SHUTDOWN NR 1 ENGINE EGT SHOW RED BOX. ACFT GROUNDED. ACCOMPLISHED CLEAN THE ENGINE GAS-PATH WITH PURE WATER REF AMM TASK 72-00-00-100-803-F00. OPS CHECK NORMAL.

Part: WARNING MESSAGE — INTERMITTENT (FMC) · airframe 28,426 hrs · 8,597 cycles

"SINGLE FMC OPERATION" ON BOTH FMC'S AFTER BRAKE RELEASE FOR PUSH. ACFT GROUNDED. REF FIM 34-61, TASK 836, APPEARS TO HAVE BEEN AN INTERMITTENT FAULT. "SINGLE FMC OPS" EXTINGUISHED.

Part: DOOR — LACK OF LUBE (RAM AIR) · airframe 28,165 hrs · 8,534 cycles

RIGHT PACK LIGHT ILLUMINATED AND WILL NOT RESET. ACFT GROUNDED. PERFORMED AUTO TEMP CONTROLLER BITE REF AMM 21-51-00, TCV FAULT. LUBED RT RAM AIR DOOR AND PERFORMED BITE, ALL PASS GO.

Part: PRESSURE SWITCH — FAILED (ENGINE FUEL) · airframe 28,162 hrs · 8,533 cycles

NR 1 ENGINE FUEL FILTER BYPASS ILLUMINATED AFTER LANDING. SHUTDOWN NR 1 ENGINE. ACFT GROUNDED. R & R NR 1 ENGINE FUEL FILTER REF AMM 73-11-02. NO CONTAMINATION. R & R FUEL FILTER DIFFERENTAL PRESSURE SWITCH, REF AMM 73-34-01. RAN MOTOR LEAK CHECK GOOD AND ELECTRONIC ENGINE CONTROL TEST PASSED, REF AMM 73-21-00.

Part: CONNECTOR — CONTAMINATED (NR 2 ENGINE) · airframe 28,018 hrs · 8,500 cycles

DURING IDG OIL CHANGE FOUND CONNECTOR PLUG TO NR 2 ENGINE DRIVEN HYDRAULIC PUMP SHUTOFF SOLENOID DISCONNECTED. ACFT GROUNDED. DP1204 TO NR 2 ENGINE DRIVEN HYD PUMP STRIPPED AT PLUG AND SOLENOID. REPLACED MW0312 NACELLE HARNESS REF AMM 71-51-03. OPS TEST GOOD, REF AMM 71-51-00. R & R ELECTRIC SOLENOID ASSY ON NR 2 ENGINE HYDRAULIC PUMP REF PARKER CMM 29-11-34. OPS & LEAK CHECK GOOD, REF AMM 29-11-11-400-801-001, STEP G.

Part: SATCOM — LOCKED · airframe 27,989 hrs · 8,493 cycles

SATCOM LOCK UP ON THE GROUND. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. SATCOM RESTORED NORMAL.

Part: SATCOM — MALFUNCTIONED · airframe 27,934 hrs · 8,478 cycles

SAT SELECTION IS MISSING FROM THE MCDU MENU PAGE AND NO SATCOM PAGES AVAILABLE. ACFT GROUNDED. PERFORMED SATCOM LOCK-UP RESET PROCEDURE IAW QRH. NORMAL SAT SELECTION AND DISPLAYS RETURNED.

Part: LAMP — INOPERATIVE (EMERGENCY LIGHT) · airframe 27,909 hrs · 8,472 cycles

RT AFT OVERWING EMERGENCY EXIT LIGHT INOPERATIVE. ACFT GROUNDED. REPLACED THE LAMP. OPS CHECKED GOOD IAW AMM 33-51-04.

Part: WIRE HARNESS — FAULTED (NR 2 EEC) · airframe 27,758 hrs · 8,435 cycles

ACCOMPLISHED T/C 78273000 NR 2 ENGINE MAINT FAULT 77-10842, TOP RT EGT SIGNAL T495S1 IS OUT OF RANGE. ACFT GROUNDED. TROUBLESHOT IAW FIM 77-21, TASK 801. FOUND PROBE T49.5 S1 BAD. R & R T49.5 S1 PROBE. NO HELP. PERFORMED EEC TEST FOUND, MAINTENANCE FAULT 73-31372, UPPER EGT SECTOR READING HIGH. R & R CJ9 HARNESS, IAW AMM 73-21-06. ACCOMPLISHED FADEC SYS TEST IAW AMM 73-21-00, NR 2 EEC TEST IAW 73-21-00. ACTUATORS TEST IAW AMM 71-00-00, EEC TEST DISCRETES TEST IAW AMM 73-21-00. ALL TESTS PASSED. PERFORMED NR 2 ENGINE GROUND RUN, IAW AMM 71-00-00. FOUND TO BE WITHIN LIMITS IAW STEP 4D OF FIM 77-21, TASK 801. EEC TEST SHOWS NO CURRENT FAULTS.

Part: PRESSURE SWITCH — FAILED (NR 1 ENGINE) · airframe 27,753 hrs · 8,434 cycles

LEFT ENGINE FILTER BYPASS LIGHT ILLUMINATED 1 MINUTE AFTER ENGINE START. LIGHT WENT OUT AFTER ENGINE SHUTDOWN. ACFT GROUNDED. R & R NR 1 ENGINE FUEL PRESSURE DIFFERENTAL SWITCH IAW AMM 73-34-01-400-801. LEAK TEST AND OPS CHECK GOOD.

Part: FMC — MALFUNCTIONED · airframe 27,711 hrs · 8,425 cycles

WHEN MENU BUTTON IS PUSHED ON FMC CDU, SATCOM IS NOT ONE OF THE OPTIONS EVEN THOUGH SATCOM IS INSTALLED. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. SATCOM RESTORED NORMAL.

Part: TRANSCEIVER — FAILED (HF SYSTEM) · airframe 27,611 hrs · 8,403 cycles

HF RADIO AND OR TRANSMITTER, RECEIVER INOPERATIVE. UNABLE TO CONTACT OCEANIC, SFO RADIO. TRIED 8-9 DIFFERENT FREQUENCIES, NO ANSWER, POSITION OVER, WHEN RADIO INOPERATIVE. ACFT GROUNDED. ACCOMPLISHED HF NR 1 COMM SYSTEM TEST. OPS NORMAL, REF AMM 23-11-00-710-801. ACCOMPLISHED NR 2 HF COMM SYS TEST AND NR 2 TRANSCEIVER BITE, OPS NORMAL REF AMM 23-11-00-730-801.

Part: SATCOM — LOCKED · airframe 27,559 hrs · 8,390 cycles

SATCOM LOCKUP. ACFT GROUNDED. ACCOMPLISHED RESET PROCEDURE IAW QRH. SATCOM RESTORED NORMAL.

Part: SATCOM — LOCKED · airframe 27,421 hrs · 8,355 cycles

SATCOM LOCKUP, ACFT GROUNDED. ACCOMPLISHED QRH RESET PROCEDURE. SATCOM RESTORED NORMAL.

Part: SATCOM — LOCKED · airframe 27,287 hrs · 8,314 cycles

SATCOM LOCKUP. ACFT GROUNDED. ACCOMPLISHED QRH RESET PROCEDURE. SATCOM RESTORED NORMAL.

Part: MODULE — FAILED (ELECTRICAL) · airframe 27,221 hrs · 8,300 cycles

AIRCRAFT DOES NOT ACCEPT EXTERNAL POWER. ACFT GROUNDED. CONFIRMED FAULT, ACFT WILL NOT ACCEPT EXTERNAL POWER. ACCOMPLISHED FIM 24-41, TASK 804, TROUBLESHOT TO DEFECTIVE "AC SYSTEM GENERATOR & APU MODULE" P5-4 PANEL. R & R P5-4 PANEL REF AMM TASK 24-21-51, GROUND FUNCTIONAL CHECK NORMAL REF AMM TASK 24-21-00-700-803.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 27,211 hrs · 8,298 cycles

FMC DISAGREE MESSAGE. ACFT GROUNDED. RAN QRH PAGE 11.2, OPS RESTORED.

Part: PROBE — FAILED (NR 2 ENGINE) · airframe 27,198 hrs · 8,295 cycles

DIAGNOSTIC REPORTS, NR 2 ENGINE TREND DATA SHOWS A SHIFT IN DELTA CRUISE AND TAKEOFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. ACFT GROUNDED. ACCOMPLISHED TSR907735. FOUND UPPER RT EGT ELEMENT BAD. REPLACED UPPER RT ELLEMENT. ALL OPS NORMAL, REF MM 77-21-01, 77-21-01.

Part: PRESSURE SWITCH — FAILED (ENGINE FUEL) · airframe 27,183 hrs · 8,290 cycles

NR 1 ENGINE FILTER BYPASS LIGHT CAME ON FOR 2 MINUTES ON TAXI OUT. ACFT GROUNDED. R & R FUEL FILTER DIFFERENTIAL PRESSURE SWITCH ON NR 1 ENGINE REF MM73-34-01-000-801-F00, MM73-34-01-400-801-F00. ACCOMPLISHED NR 1 ENGINE FUEL LEAK CHECKED AND RAN ENGINE LEAK CHECK GOOD.

Part: CONNECTOR — LOOSE (NR 1 ENGINE) · airframe 27,134 hrs · 8,277 cycles

ON DECK AT IDLE, NR 1 FILTER BYPASS ILLUMINATED FOR APPROXIMATELY 2 MINUTES, THEN WENT OUT ON ITS OWN. NO ENGINE ABNORMALS OBSERVED. ACFT GROUNDED. FOUND FUEL FILTER DIFFERENTIAL PRESSURE SWITCH CONNECTOR PLUG LOOSE. CLEANED AND SECURED CONNECTOR PLUG ON FFDPS. REF FIM 73-05, TASK 801. IAW FIM 73-05, TASK 801, FOUND FAULT CODE 73-21071, FUEL FILTERS DISAGREE ACCOMPLISHED THE REPAIR CONFIRMATION, STEP F. IDLE POWER CHECK, TESTED GOOD.

Part: SATCOM — MALFUNCTIONED · airframe 27,109 hrs · 8,269 cycles

SATCOM MENU NOT AVAILABLE, ACFT GROUNDED. PERFORMED "SATCOM LOCK UP" QRH PROCEDURE RESTORED.

Part: SENSOR — FAILED (R2 WINDOW HEAT) · airframe 26,969 hrs · 8,236 cycles

WINDOW HEAT, RT SIDE OVERHEAT ILLUMINATED. ACFT GROUNDED. SWAPPED CONTROL CABIN RT SIDE WINDOW SENSOR IAW WDM 30-41-00. CONTROL CABIN RT SLIDING WINDOW HEAT, OPS CK NORMAL IAW MM 30-41-00-710-801.

Part: CONTROL SWITCH — MALFUNCTIONED (CABIN PRESSURE) · airframe 26,789 hrs · 8,192 cycles

PRESSURIZATION AUTOFAIL LIGHT ON WITH AUTO SELECTED ON GROUND. ACFT GROUNDED. CYCLE PRESSURE CONTROL SWITCH TO AUTO/MANUAL AND AUTO FAIL LIGHT EXTINGUISHED, PERFORMED BITE CHECKED ON DCPC OPS NORMAL AND NO FAULTS NOTED REF FIM TASK 21-31, TASK 801 AND NO 30 DAY HISTORY NOTED.

Part: SATCOM — MALFUNCTIONED · airframe 26,731 hrs · 8,175 cycles

SATCOM PROMPT ON FMC DISAPPEARED ON ELECTRICAL BUS TRANSFER. ACFT GROUNDED. SATCOM LOCK UP QRH PROCEDURE PERFORMED ON GROUND, SATCOMM PROMPT WAS RESTORED.

Part: SHIM — WORN (NR 2 FAN BLADES) · airframe 26,717 hrs · 8,171 cycles

MORE THAN HALF OF THE NR 2 ENGINE FAN BLADE PLATFORMS HAVE SEAL DAMAGE. 1 PLATFORM HAS DISBONDED RIGHT AND ALL 24 FAN BLADE SHIMS HAVE WORN MOLLY DAG COATING. ACFT GROUNDED. REPLACED ALL NR 2 ENGINE FAN BLADE PLATFORMS & SHIMS. PERFORMED AMM TASK 71-00-00-700-814-F00, TEST 7 VIBRATION SURVEY. NO ADJUSTMENTS NECESSARY.

Part: OIL SYSTEM — LOW (APU) · airframe 26,655 hrs · 8,144 cycles

MAINT LIGHT ON APU ILLUMINATED AFTER APU STARTED. ACFT GROUNDED. FOUND APU OIL 1 QT LOW. SERVICED APU OIL REF AMM 12-13-31. GROUND VERIFICATION CHECK OF APU GOOD. NO BLUE MAINTENANCE LIGHT ON START UP.

Part: DRAIN MAST — CRACKED (APU) · airframe 26,543 hrs · 8,111 cycles

DRAIN MAST FOR APU FUEL SHROUD DRAIN IS CRACKED. ACFT GROUNDED. REMOVED APU FUEL SHROUD DRAIN MAST REF AMM 28-25-07-020-801. INSTALLED DRAIN MAST IAW AMM 28-25-07-420-801.

Part: SATCOM — LOCKED · airframe 26,488 hrs · 8,094 cycles

SATCOM LOCKUP, ACFT GROUNDED. RESOLVED FOLLOWING QRH.

Part: BLADE — CRACKED (LT ENGINE) · airframe 26,407 hrs · 8,070 cycles

WHILE ACCOMP TC 78472000 "ENG INLET & FAN BLADES DETAILED INSP" FOUND FAN CASE FLANGE 2ND FROM FWD (B) CRACKED AT 11:00 O'CLOCK POSITION AFT LOOKING FWD AT FIRELOOP TRANSPONDER MOUNTING BRACKET. ACFT GROUNDED. REMOVED NR 1 ENGINE IAW T/C 78471000 FOR ENGINE FOR REPAIR. INSTALLED NR 1 ENGINE IAW T/C 78471001, OPS CHECK AND LEAK GOOD.

Part: LIGHT — INTERMITTENT (AUTO THROTTLES) · airframe 26,377 hrs · 8,062 cycles

A/T ARM LIGHT INOPERATIVE, GROUNDED. ACCOMPLISHED AUTOTHROTTLE SYS OPS TEST, NO FAULTS NOTED, REF MM 22-31-00. CREW NOTES AUTOTHROTTLE SWITCH LIGHT OPERATES NORMALLY.

Part: SATCOM — LOCKED · airframe 26,377 hrs · 8,062 cycles

SATCOM LOCK UP. ACFT GROUNDED. SATCOM CIRCUIT BREAKER P18-2, D14 RESET IAW QRH SATCOM LOCK-UP.

Part: ACTUATOR — MALFUNCTIONED (RAM AIR EXHAUST) · airframe 26,207 hrs · 8,005 cycles

WHEN PUSHING "RECALL" THE RT PACK LIGHT ILLUMINATED, PUSHING "RESET" PUTS THE PACK LIGHT OUT. ACFT GROUNDED. ACCOMPLISHED FIM TASK 21-62, TASK 801, PUSH TEMP CONTROL, BITE CK FOUND RT RAM AIR ACTUATOR FAULT. REPLACED RT RAM AIR INLET ACTUATOR. REACCOMPLISHED FIM TASK 21-62, TASK 801, NO FAULTS FOUND. REF AMM 21-51-21, FIM 21-62, TASK 801.

Part: SATCOM — LOCKED · airframe 26,072 hrs · 7,974 cycles

ENCOUNTERED SATCOM LOCKOUT DURING POWER TRANSFER. ACFT GROUNDED. RESOLVED IAW QRH PROCEDURE.

Part: WINDOW — FAULTED (COCKPIT) · airframe 25,842 hrs · 7,897 cycles

LEFT WINDOW OVERHEAT & ASSOCIATED MASTER CAUTION LIGHT ILLUMINATED CLIMBING THROUGH 9,500'. ACCOMPLISHED QRH CHECKLIST. OVERHEAT LIGHT EXTINGUISHED. NORMAL OPS FOR REMAINDER OF THE FLIGHT. ACFT GROUNDED. BITE OF L2 WHCU HAS NO CURRENT FAULTS, SHOWING FLT HISTORY OF A "WINDOW SENSOR" FAULT. GVI OF L2 WINDOW, NO DEFECTS NOTED. GVI OF CONTROL, POWER CBS, NO DEFECT NOTED. L2 TEMP SENSORS CHECKED GOOD IAW TASK 30-41-21-760-801. L2 COIL CORD CHECKED GOOD, IAW WDM 30-41-12. L2 WINDOW DECAL IS SHOWING H16, BUT WINDOW RESISTANCE IS 63.5 OHMS. CHANGED TAP TO REFLECT THIS IAW TASK 30-41-21-00-801 AND WDM 30-41-12. BITE OF L2 WHCU NO CURRENT FAULTS. L2 WINDOW HEAT OPS NORMAL, IAW TASK 30-41-00-710-801. REMOVED & INSTALLED THE L2 SLIDING WINDOW IAW AMM 56-12-11-000-501 & 56-12-11-400-801. ADJUSTED IAW AMM 56-12-11-820-801. VERIFIED WINDOW ELECTRICALLY CONNECTED CORRECT IAW WDM 30-41-12. PERFORMED WINDOW HEAT SYS OPS TEST IAW AMM TASK 30-41-00-710-801, TEST PASSED OK.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 25,824 hrs · 7,890 cycles

DURING C/O AT APPROXIMATELY FL290-LT SIDE OVERHEAD & MASTER CAUTION LIGHTS ILLUMINATED. RAN QRH, WAITING 5 MIN, SYS RETURNED TO NORMAL OPS/INDICATION. DURING APPROACH AT APPROXIMATELY 11000 MSL 280 KIAS & 23C TAT LT SIDE WINDOW & MASTER CAUTION ILLUMINATED AGAIN. RAN QRH WAITING 4 MIN SYS RETURNED TO NORMAL OPS INDICATIONS. ACFT GROUNDED. REF AMM FIM TASK 30-41, TASK 801. NO FAULTS FOUND DURING WINDOW HEAT, CONTINUED UNIT BITE TEST OF L2 WINDOW. ALL LIGHTS EXTINGUISHED SYS. OPS NORMAL ON GROUND AT THIS TIME.

Part: CONTROL UNIT — FAILED (WINDOW HEAT) · airframe 25,782 hrs · 7,877 cycles

ON LANDING ROLL LT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED WHCU BITE TEST IAW FIM 30-41, TASK 801, NO FAULTS FOUND. R & R WHCU IAW AMM 30-41-11, NO FAULTS FOUND GROUND VERIFICATION SUCESSFUL. LT SIDE WINDOW HEAT O/H LIGHT REMAINS OFF.

Part: WARNING LIGHT — FALSE ACTIVATION (L2 WINDOW HEAT) · airframe 25,747 hrs · 7,865 cycles

LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED SHORTLY AFTER T/O, GOES OUT WITH QRH RESET. ACFT GROUNDED. PERFORMED WHCU BITE PROCEDURE AND RESET. ALL CHECKS NORMAL IAW FIM TASK 30-41, TASK 801. REPLACED COIL CORD AS PRECAUTIONARY IAW MM 30-41-00. NO HISTORY 30 DAYS, ACFT GOOD FOR SERVICE.

Part: WARNING LIGHT — MALFUNCTIONED (WINDOW HEAT) · airframe 25,573 hrs · 7,802 cycles

L2 WINDOW HEAT LIGHT EXTINGUISHED WHILE ALL OTHER LIGHTS REMAINED ON. SUNLIGHT WAS NOT AN ISSUE. ACFT GROUNDED. PERFORMED WINDOW HEAT CONTROL UNIT BITE PROCEDURE ON L2 WINDOW IAW AMM TASK 30-41, TASK 801. NO FAULTS NOTED. NO HISTORY 30 DAYS.

Part: SATCOM — LOCKED · airframe 25,546 hrs · 7,796 cycles

SATCOM LOCKOUT ON POWER TRANSFER. ACFT GROUNDED. QRH PROCEDURE CORRECTED PROBLEM.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 25,468 hrs · 7,774 cycles

FMC DISAGREE ON GROUND AFTER ENGINE START. ACFT GROUNDED. FOLLOWED QRH PROCEDURE AND NORMAL, OPS RESTORED.

Part: SATCOM — LOCKED · airframe 25,416 hrs · 7,762 cycles

SATCOM LOCK-UP DURING POWER TRANSFER. ACFT GROUNDED. FOLLOWED QRH PROCEDURE AND RESTORED SAT SELECTION ON MCDU MENU.

Part: SATCOM — FAILED · airframe 25,352 hrs · 7,748 cycles

SATCOM FAILURE IN FLIGHT. ACFT GROUNDED. RE-SET IAW QRH PROCEDURE, OPS NORMAL.

Part: CONTROL UNIT — UNKNOWN · airframe 25,307 hrs · 7,735 cycles

ON COMPLETION OF PUSHBACK, ELECTRICAL LIGHT ILLUMINATED AFTER START. ACFT GROUNDED. PERFORMED FIM 24-31 TASK 801. FOUND FAULT SPCU INOPERATIVE. PERFORMED FIM 24-34, TASK 802. FAULT CLEARED. INTERMITTENT FAULT IAW FIM. NO HISTORY. GROUND VERIFICATION SUCCESSFUL. REPLACED SPCU. OPS NORMAL REF MM 24-34-11.

Part: SATCOM — LOCKED · airframe 25,298 hrs · 7,732 cycles

SATCOM LOCKED-UP ON GROUND AFTER POWER TRANSFER. ACFT GROUNDED. SYSTEM RESET NORMALLY AFTER FOLLOWING QRH PROCEDURE.

Part: SATCOM — MALFUNCTIONED · airframe 25,121 hrs · 27,933 cycles

NO SATCOM PROMPT ON MCDU. ACFT GROUNDED. IAW QRH RESET CIRCUIT BREAKER AND SATCOM PROMPT APPEARED.

Part: SATCOM — MALFUNCTIONED · airframe 25,013 hrs · 7,657 cycles

NO SATCOM PROMPT ON MCDU. ACFT GROUNDED. RESET SATCOMM CB REF FIM TASK 23-15, TASK 801, SATCOM PROMPT DISPLAYS.

Part: MODULE — FAILED (CABIN TEMP) · airframe 24,826 hrs · 7,603 cycles

AFTER ENGINE START AND RECALL CHECK. ALL 3 ZONE TEMPS LIGHTS ILLUMINATED. LIGHTS WOULD EXTINGUISHED ON RESET. TEMP CONTROLLERS DID NOT MOVE PACK TEMP. AFT CABIN SUPPLY DUCT AND AIR TEMP INDICATOR SHOWS HIGH TEMP WHEN SELECTOR FULL COLD AND FLUCTUATES. ACFT GROUNDED. R & R CABIN TEMPERATURE CONTROL MODULE, CLEARED TEMPERATURE CONTROL LIGHTS IAW AMM 21-61-15-400-801, OPS CHECK IAW AMM 21-61-00-700-806-022, 21-61-15-400-801. PERFORMED CABIN TEMP CONTROL AND INDICATION OPS TEST, OPS CK NORMAL REF 21-61-00-700-807-002. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST ON NR 1 AND NR 2 CONTROLLERS, NO FAULTS NOTED, SYSTEMS PASSED REF AMM 21-61-00-700-806-002. GROUND VERIFICATION CK GOOD.

Part: IDG — FAILED (NR 1 ENGINE) · airframe 24,804 hrs · 7,594 cycles

AFTER ENGINE START, NR 1 ELECTRICAL GENERATOR WOULD NOT CONNECT TO THE BUS FREQ AND VOLTS 0. ACFT GROUNDED. REPLACED NR 1 IDG REF AMM 24-11-11.

Part: CONTROL PANEL — MALFUNCTIONED (CABIN TEMP) · airframe 24,794 hrs · 7,592 cycles

SUPPLY DUCT GAUGE READS INTERMITTENTLY HIGH. CONT-50/AFT 55-70, FWD-40. ALL ARE INTERMITTENT. F/A'S REPORT TEMP A LITTLE COOL, BUT NO WAY TO TELL ON SUPPLY GAUGE. ACFT GROUNDED. SUPPLY DUCT TEMPERATURE GAUGE DOES NOT INDICATE CABIN TEMPERATURE. REF CABIN TEMP POSITIONS FOR ACTUAL CABIN TEMPERATURE INDICATIONS. RUNG WIRING FROM D90 CONNECTOR FROM PIN 3 TO GROUND ON ALL AIR TEMP SELECT SWITCH POSITIONS. CONTINUITY CHECK OK. INSPECTED CONNECTOR D11838 AT AFT TEMP SUPPLY BULB AND AT P5-17 D90 CONNECTOR FOR DAMAGE AND CONTACT SECURITY. NO DEFECTS NOTED. R & R CABIN TEMPERATURE PANEL, TEMPERATURE INDICATOR IAW AMM 21-61-32. OPS CHECK NORMAL. R & R AFT SUPPLY DUCT TEMPERATURE BULB IAW AMM 21-61-31. OPS CHECK NORMAL.

Part: CONTROL MODULE — FAILED (TEMP) · airframe 24,787 hrs · 7,588 cycles

ON TAXI OUT SAW ALL 3 ZONE TEMP LIGHTS HAD ILLUMINATED WITH NO ASSOCIATED MASTER CAUTION. ALL 3 RESET WITH PUSH TO RESET. NO CONTROL OVER ANY TEMPERATURES. ACFT GROUNDED. BOTH ZONE TEMP CONTROLLERS FAULTED CABIN ZONE AND FLT DECK SELECTOR FAULTS. ACCOMPLISHED TEST MULTIPLE TIMES. R & R TEMP CONTROL MODULE REF MM 21-61-15, OPS CHECK NORMAL.

Part: MODULE — FAILED (CABIN TEMP) · airframe 24,782 hrs · 7,587 cycles

AFT SUPPLY DUCT AIR TEMP INDICATION FLUCTUATES BETWEEN 20-60 DEG C, WITHOUT MOVING AFT CAB TEMP SELECTOR. ACTUAL CABIN TEMPS SEEM NORMAL. ACFT GROUNDED. VERIFIED P5-17 CAB TEMP CONTROL MODULE CAUSING FLUCTUATION. R & R P5-17 CAB TEMP CONTROL MODULE REF MM 21-61-15. OPS CHECK NORMAL.

Part: SATCOM — FAILED · airframe 24,674 hrs · 7,552 cycles

SATCOM FAILED W/PWR CHANGE. ACFT GROUNDED. QRH PROCEDURE DONE, RESTORING SATCOM.

Part: INDICATOR — FAILED (FUEL QTY) · airframe 24,611 hrs · 7,531 cycles

FUELING INDICATION C/B, P6-3A4, TRIPPED- NO FUEL INDICATION AT FUEL PANEL. ACFT GROUNDED. FOUND TANK 1 REFUEL IND INOPERATIVE REF WDM 28-44-11 SH 2. R & R NR 1 REFUEL QTY IND REF MM 28-41-61. PERFORMED GVI BEHIND P6-3 FOR CONTAMINATION OR DEFECTS, NONE NOTED.

Part: SATCOM — LOCKED · airframe 24,501 hrs · 7,504 cycles

SATCOM LOCK-UP GROUNDED. CORRECTED ENROUTE IAW QRH PROCEDURE.

Part: SUPPORT ANGLE — CORRODED (BS 303-348) · airframe 24,367 hrs · 7,473 cycles

FWD ENTRY DOOR SILL SUPPORT ANGLE HAS LIGHT CORROSION AROUND SEVERAL NUTPLATES. ACFT GROUNDED. REMOVED CORROSION FOUND TO BE WITHIN ALLOWABLE LIMITS ON FWD ENTRY DOOR SILL SUPPORT ANGLE IAW SRM 53-10-15. REMOVED DOT X328 ORIGINAL MATERIAL .080 REMOVED .001 REMAINING MAT .079.

Part: SUPPORT ANGLE — CORRODED (BS 294-328) · airframe 24,367 hrs · 7,473 cycles

FWD GALLEY SERVICE DOOR SILL SUPPORT ANGLE HAS LIGHT CORROSION IN SEVERAL AREAS. ACFT GROUNDED. REMOVED CORROSION AT FWD GALLEY SERVICE DOOR SILL SUPPORT ANGLE FOUND TO BE WITHIN ALLOWABLE LIMITS IAW SRM 53-10-15. REMOVED DOT X327, ORIGINAL MATERIAL .090, REMOVED .003 REMAINING MATERIAL .087.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 24,367 hrs · 7,473 cycles

CRACK INDICATION FOUND RT HORIZONTAL LOWER SKIN INBD ROW OF FASTENERS AT STABILIZER STA 101.90, 18' FWD OF AFT SPAR. MARKED AS 660' LONGERON. ACFT GROUNDED. REMOVED DAMAGE AND ACCOMPLISHED DOUBLER REPAIR REF SRM 55-10-01-2R-11, REPAIR 11.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 24,367 hrs · 7,473 cycles

CRACK INDICATION FOUND RT HORIZONTAL LOWER SKIN INBD ROW OF FASTENERS AT STABILIZER STA 101.90, 9' FWD OF AFT SPAR. MARKED AS .865' LONG. ACFT GROUNDED. REMOVED DAMAGE AND ACCOMPLISHED DOUBLER REPAIR REF SRM 55-10-01-2R-11, REPAIR 11.

Part: SKIN — CRACKED (HORIZONTAL STAB) · airframe 24,367 hrs · 7,473 cycles

CRACK INDICATION FOUND LT HORIZONTAL LOWER SKIN INBD OF ROW OF FASTENERS STABILIZER STA 138.70, 8.5' FWD OF AFT SPAR. MARKED .300' LONG. ACFT GROUNDED. REMOVED DAMAGE AND REPAIRED AREA IAW SRM 55-10-01-2R-11.

Part: WARNING LIGHT — ILLUMINATED (APU) · airframe 24,360 hrs · 7,471 cycles

DURING CRUISE, APU DETECTOR INOPERATIVE LIGHT ILLUMINATED. QRH PRODEURES WERE FOLLOWED. ACFT GROUNDED.

Part: SATCOM — MALFUNCTIONED · airframe 24,267 hrs · 7,442 cycles

SATCOM NOT WORKING. ACFT GROUNDED. COULD NOT DUPLICATE PROBLEM. SATCOMM 1 & 2 OPS NORMAL IAW AMM 23-15-00. ESTABLISHED GOOD & READABLE COMMUNICATIONS WITH DISPATCH FROM GROUND USING BOTH SATCOMS. GROUND VERIFIACTION SUCCESSFUL.

Part: CONTROL UNIT — FAILED (WINDOW HEAT) · airframe 24,116 hrs · 7,403 cycles

LEFT SIDE WINDOW HEAT INOPERATIVE. ACFT GROUNDED. WINDOW TEMP SENSOR & HEAT FILM RESISTANCES NOMINAL. PIGTAIL CONTINUITY RINGS GOOD. ON LIGHT WOULD NOT ILLUMINATE. POWER TEST RESTORED NORMAL OPERATION THEN FAILED AGAIN. RERACKED LT SIDE WHCU. FAILED AFTER 8 MINUTES. R & R LT SIDE WHCU. OP CK NORMAL REF FIM 30-41, TASK 809.

Part: SATCOM — LOCKED · airframe 24,092 hrs · 7,395 cycles

SATCOM LOCKUP ON GROUND AFTER POWER TRANSFER TO APU. ACFT GROUNDED. QRH PROCEDURE RETURNED "SAT' INDICATION AFTER ABOUT 2 MINUTES.

Part: SATCOM — MALFUNCTIONED (NR 1) · airframe 24,085 hrs · 7,393 cycles

ON GROUND, SWITCHED TO APU POWER. NO NR 1 SATCOM. ACFT GROUNDED. DID QRH PROCEDURE. SATCOM CAME BACK ON LINE.

Part: VALVE — FAILED (NR 1 ENGINE) · airframe 23,942 hrs · 7,353 cycles

NR 1 ENGINE ANTI-ICE COWL VALVE OPEN LIGHT BRIGHT BLUE AND AMBER TAI INDICATION. ACFT GROUNDED. R & R NR 1 ENGINE COWL TAI VALVE IAW AMM 30-21-11-000-801 & 30-21-11-400-801. OPS TEST GOOD. GROUND VERIFICATION GOOD.

Part: UNKNOWN — MULTIPLE FAIL · airframe 23,589 hrs · 7,257 cycles

F/O FLIGHT DIRECTOR STEERING BARS DID NOT DISPLAY ON ILS APPROACH. DISAPPEARED AT LOC CAPTURE AND GS CAPTURE. VOR/LOC AND GS AND FD WERE PROPERLY DISPLAYED ON THE FMA. MA WAS ILLUMINATED ON THE F/O FLIGHT DIRECTOR SWITCH. THE CAPTAINS DISPLAY WAS NORMAL. ACFT GROUNDED. CURRENT STATUS GOOD. FOUND ON FCC "B" FAULT HISTORY, FAULT 11-11052 " NO RAD ALT NR 2 DATA" ACCOMPLISHED FIM TASK 22-11, TASK 805. NO CURRENT FAULTS. FAULT INTERMITTENT. NO HISTORY LAST 30 DAYS. RAD ALT OPS NML REF MM 34-33-00.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW OVERHEAT) · airframe 23,500 hrs · 7,232 cycles

ON APPROXIMATELY LT SIDE WINDOW OVERHEAT. ACFT GROUNDED. PERFORM FIM TASK 30-41 TASK 801, NO FAULTS INDICATED. PERFORMED OPS TEST FIM 30-41-00-710-801. OPS CHECKED GOOD. OK FOR SERVICE

Part: WARNING LIGHT — FALSE ACTIVATION (NR 2 ENGINE) · airframe 23,456 hrs · 7,218 cycles

ON START, NR 2 ENGINE WOULD NOT INDICATE EGT RISE GOOD N1/N2 ROTATION. ACFT GROUNDED. PERFORMED NR 2 ENG IGNITION TEST IAW AMM 74-00-00 IGNITION CHECKED GOOD. PERFORMED ENGINE RUN WITH FLT CREW NO DEFECTS NOTED.

Part: RADAR — MALFUNCTIONED (WX SYSTEM) · airframe 23,405 hrs · 7,200 cycles

WEATHER RADAR INDICATES SYMMETRICAL PATTERNS OF WEATHER AT THE 10 AND 2 O'CLOCK POSITIONS WITH CLEAR SKY AHEAD. IMAGES SCALE UP AND DOWN IN SIZE PROPORTIONATE WITH SCALE SELECTION. TILT IN AUTO. SUBSTANTIALLY LESS INTENSITY IN MANUAL TILT. ACFT GROUNDED. TESTED THE WEATHER RADAR SYSTEM IAW AMM 34-43-00-710-802. OPS CHECK GOOD. NO FAULTS OR PATTERNS FOUND ON CAPTAIN'S OR F/O'S DISPLAY.

Part: SATCOM — MALFUNCTIONED · airframe 23,381 hrs · 7,194 cycles

SATCOM LOCKED UP ON GROUND. ACFT GROUNDED. RESET SUCCESSFUL. OPS NORMAL.

Part: HEATER — MALFUNCTIONED (LT WINDOW) · airframe 22,907 hrs · 7,049 cycles

LEFT SIDE WINDOW HEAT DOES NOT COME ON/OAT 16 DEG C. ACFT GROUNDED. ACCOMPLISHED RESISTANCE CHECKED ON LT SIDE WINDOW. PRIMARY SENSOR 301 OHM, SPARE 299, HEAT FILM 62.3 IAW MM 30-41-21 & WDM 30-41-12. VERIFIED CORRECT TAP AT CONTROLLER FOR WINDOW CODE H16. PERFORMED WINDOW HEAT OPS TEST, REF MM 30-41-00 IN SIDE WINDOW SURFACE TEMP 75-85, OUT SIDE SURFACE TEMP 95-110 ON INFARED THERMOMETER.

Part: FILTER — BYPASSING (NR 2 SAVENGING) · airframe 22,814 hrs · 7,018 cycles

NR 2 OIL FILTER BYPASS LIGHT ON LANDING. EXTINGUISHED ON ENGINE SHUTDOWN. ACFT GROUNDED. REMOVED AND REPLACED NR 2 ENGINE SCAVENGE OIL FILTER & INSPECTED NO CONTAMINATION NOTED IAW AMM 79-21-06. LEAK CHECKED GOOD.

Part: SATCOM — MALFUNCTIONED · airframe 22,727 hrs · 6,992 cycles

SAT PHONE LOCKED UP ON GROUND. ACFT GROUNDED. FOLLOWED QRH PROCEDURE, SATCOM BACK.

Part: FEEDER CABLE — FAILED (L2 WINDOW) · airframe 22,707 hrs · 6,986 cycles

L2 WINDOW HEAT CYCLES OFF WITH COLD WINDOW. ACFT GROUNDED. REPLACED L2 WINDOW RETRACTABLE CORD. OPS CHECKED GOOD, IAW AMM 30-41-00-710-801.

Part: PROBE — FAILED (NR 1 ENGINE) · airframe 22,633 hrs · 6,964 cycles

DIAGNOSTICS REPORTED NR 1 ENGINE TREND DATA SHOWS A SHIFT IN DELTA CRUISE INDICATIVE OF EGT INDICATION ERRORS. ACFT GROUNDED. PERFORMED T49.5 PROBE & EGT SYSTEM INSPECTION AMM TASK 77-21-200-801-F00. T49.5 S4 PROBE FAILED RESISTANCE CHECK. R & R T49.5 S4 PROBE. OPS CHECKED GOOD. IAW AMM 77-21-01 FOR T49.5.

Part: SENSOR — FAILED (NR 1) · airframe 22,508 hrs · 6,921 cycles

THREE HOURS INTO FLIGHT AT FL370, NR 1 AMBER COWL ANTI-ICE ILLUMINATED WITH ASSOCIATED "MASTER CAUTION" LIGHTS. THE LIGHT REMAINED ON STEADY OR INTERMITTENT DURING AND AFTER ACCOMPLISHMENT OF QRH PROCEDURE. ACFT GROUNDED. ACCOMPLISHED FIM TASK 30-21/801. FOUND NR 1 ENGINE CTAI DUCT OVERPRESSURE FAULTY. REMOVED NR 1 ENGINE TAI PRESSURE SENSOR IAW AMM 30-21-21-000-802. INSTALLED NR 1 ENG TAI PRESSURE SENSOR IAW AMM 30-21-21-400-801.

Part: IDG — FAILED (NR 2) · airframe 22,332 hrs · 6,867 cycles

NR 2 SOURCE OFF LIGHT ILLUMINATED ON DESCENT AT 5000 FT. ACFT GROUNDED. NR 2 GCU R & R. NO HELP. REMOVED GCU AND REINSTALLED ORIGINAL GCU. INSTALLATION TEST GOOD, REF AMM 24-21-81, FIM 24-21, TASK 823 RANG OUT A BAD IDG UNIT. REPLACED NR 2 ENG IDG WITH NEW REF: AMM 24-11-11. ALL TEST GOOD, REF'S: TASK 71-00-00-800-811-FOO, TASK 24-11-00-700-803.

Part: SENSE LINE — DAMAGED (NR 1 ENGINE) · airframe 22,087 hrs · 6,781 cycles

NR 1 ENGINE COWL ANTI-ICE CAME ON INTERMITTENTLY DURING DESCENT AND APPROACH. ACFT GROUNDED. INSPECTED AND FOUND PRESSURE SENSE LINE DAMAGED. REPLACED SENSE LINE WITH SERVICEABLE UNIT. PERFORMED ENGINE ANTI-ICE TEST REF AMM 30-21-00. SYS OPS NORMAL.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 22,073 hrs · 6,774 cycles

FMC DISPLAYS "DATALINK FULL" MESSAGE. NO FMC WIND UPLINKS AVAILABLE. ACFT GROUNDED. ON ARRIVAL TO ACFT, MESSAGE NO LONGER PRESENT. THIS IS A KNOWN ANOMALY IAW FIM 34-61, TASK 839.

Part: WARNING LIGHT — FALSE ACTIVATION (ANTI ICE) · airframe 22,036 hrs · 6,765 cycles

INTERMITTENT MOMENTARY NR 1 COWL ANTI ICE LIGHT AT CRUISE OCCURRED 3-4 TIMES THEN REMAINED OUT FOR LAST .45 HR OF FLIGHT. ACFT GROUNDED. OPS CHECK OF NR 1 ENG COWL ANTI-ICE VALVE IAW MM 30-21-860-003 VALVE OPS NORMAL. GROUND VERIFICATION WAS SUCCESSFUL.

Part: SELECTOR KNOB — MALFUNCTIONED (AIR TEMP) · airframe 21,762 hrs · 6,678 cycles

AIR TEMP SELECTOR SWITCH GIVES ERRATIC INDICATIONS WITH COCKPIT SELECTED. OTHER POSITIONS NORMAL. KNOB IS VERY LOOSE. ACFT GROUNDED.

Part: WARNING MESSAGE — FALSE ACTIVATION (AUTO PRESSURE) · airframe 21,691 hrs · 6,661 cycles

PRESSURIZATION AUTO FAIL AND ALTERNATE LIGHTS ON. ACFT GROUNDED. CYCLED SWITCH TO MAN AND BACK TO AUTO. LIGHTS EXTINGUISHED. PRESSURE CONTROLLERS BITE NORMAL IAW FIM 21-31 TASK 801. GROUND VERIFICATION SUCCESSFUL.

Part: CONTROL MODULE — FAILED (ANNUNCIATOR) · airframe 20,853 hrs · 6,425 cycles

FMC P/RST LIGHT BLINKS ON/OFF W NO ASSOCIATED INDICATIONS. ACFT GROUNDED. VERIFIED F/O'S FMC P/RST MODULE IS A HARD FAIL. REPLACED ANNUNCIATOR MODULE REF, MM 22-11-32-000-801. OPS CK OK. ETOPS GROUND VERIFICATION OPS CK OK.

Part: EEC — FAULTED (NR 2 ENGINE) · airframe 20,793 hrs · 6,407 cycles

FOUND SHORT TERM FAULT 73-21682 ADIRU P5 DATA AND ENG P0 SIGNAL DISAGREE ON NR 2 ENGINE. ACFT GROUNDED. VERIFIED FAULT IS ACTIVE. R & R EEC ON NR 2 ENGINE IAW AMM 73-21-60 & 73-21-60-400. PERFORMED FADEC TEST IAW AMM 73-21-00. TEST PASSED. PERFORMED EEC DISCRETES TEST, EEC TEST & ACTUATORS TEST IAW AMM 73-21-00. ALL TESTS PASSED.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 20,423 hrs · 6,312 cycles

FMC DISAGREE ON GROUND. ACFT GROUNDED. ACCOMPLISHED OGG IAW QRH 11.2. FMC DISAGREE NO LONGER DISPLAYED AFTER PROCEDURE COMPLETED.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 20,290 hrs · 6,277 cycles

FMC DISAGREE ILLUMINATED ON GROUND. ACFT GROUNDED. ACCOMPLISHED QRH PROC, OPS NORMAL.

Part: MODULE — FAILED (A/C PACK) · airframe 20,205 hrs · 6,256 cycles

ON QUERY, REF PAGE IN FMC THE N1 SETTINGS DID NOT MATCH UP THE LT 8308, THE RT 83.2. ACFT GROUNDED. DURING OPS TEST (L) PACK SWITCH WHEN TURNED TO AUTO INTERMITTENTLY PACK IND. SHOWED OFF W/ NO AIRFLOW. WHEN OFF, PACK REMAINED ON. WIGGLING SWITCH IN OFF DETENT POS. VALVE GOES TO OPEN. REPLACED ACFT MODULE REF AMM 21-51-65. OPS CHECK NORMAL. FLOW CONTROL VALVE S/O VALVE REACTIVATION PROCEDURE SUCCESSFUL.

Part: WINDOW — WARNING MESSAGE · airframe 20,146 hrs · 6,238 cycles

LEFT SIDE WINDOW HEAT OVERHEAT ON DESCENT. ACFT GROUNDED. COMPLIED WITH FIM TASK 30-41-00-810-811 NO FAULT NOTED ON WHCN. LT WINDOW HEAT ON FOR 20 MINS NO OVERHEAT LIGHT CAME ON, WINDOW IS HEATED NORMALLY OK FOR SERVICE, NO HISTORY PAST 30 DAYS.

Part: COMPUTER — NO TEST · airframe 20,049 hrs · 6,213 cycles

LAND VERIFY TEST FAILED 60.35 FCC-A ELEV POS SEN-1 MESSAGE 22-11125. ACFT GROUNDED.

Part: FMC — WARNING MESSAGE (NR 2) · airframe 20,027 hrs · 6,208 cycles

NR 2 ENGINE FMC CDU SHOWS FAULT NR 76-31362, START LEVER SIGNAL DISAGREE ENGINE ESN894227. ACFT GROUNDED.

Part: MODULE — FAILED (AIR CON SYS) · airframe 20,013 hrs · 6,199 cycles

ISOLATION VALVE STAYS CLOSED WHEN SWITCH ON P5-10 PANEL SELECTED TO AUTO. ACFT GROUNDED. REPLACED AIR CONDITIONING MODULE (P5-10 PANEL) IAW MM 21-51-65. INSTALLATION TEST GOOD IAW SAME. PACK ZONE TEMP CONT BITE TESTS GOOD. REF MM 21-51-00. RECIRCULATION SYS OPS TEST GOOD IAW MM 21-25-00.

Part: START VALVE — MALFUNCTIONED (NR 2 ENGINE) · airframe 19,947 hrs · 6,184 cycles

DURING START, NR 2 ENGINE HAD NO ROTATION. ACFT GROUNDED. PEFORMED GVI INSPECTION NR 2 STARTER AND CV INSPECTION, PERFORMED 2 ENGINE MOTORS & THREE ENGINE STARTS WITH ALL INDICATIONS NORMAL. AMM 71-00-00. NO HISTORY LAST 90 DAYS. GROUND VERIFICATION SUCCESSFUL. REPLACED NR 2 ENGINE START VALVE IAW AMM TASK 80-11-03-400-803-F00. NR 2 START VALVE OPERATES NORMALLY IAW AMM TASK 71-00-00-700-809-F00.

Part: SHIM — WORN (NR 1 ENGINE FAN) · airframe 19,880 hrs · 6,167 cycles

NR 1 ENGINE FAN BLADE SHIMS HAVE COATING WORN. ACFT GROUNDED. REPLACED SHIMS FROM NR 1 ENGINE FAN BLADES REF T/C 78472002.

Part: SHAFT — FAILED (NR 1 STARTER) · airframe 19,884 hrs · 6,168 cycles

ENGINE NR 1 FAILED TO START. START VALVE OPEN LIGHT ILLUMINATED WITH START SWITCH, BUT NO ENGINE ROTATION. ACFT GROUNDED. FOUND STARTER SHAFT SHEARED, INSP MAG CHIP PLUG NO DEBRIS. REMOVED NR 1 ENG STARTER ASSY REF MM 80-11-01-00-801 INSTALLED STARTER REF MM 80-11-01-400-801, 71-00-00-700-809, & 71-00-00-700-801. LEAK CKD & OPS CKD NORMAL.

Part: SATCOM — LOCKED · airframe 19,739 hrs · 6,131 cycles

SATCOM NOT APPEARING ON L4 OF FMC. ACFT GROUNDED. VERIFIED DIRECT SYMPTOMS OF LOCKED STATE. CYCLED SATCOM CIRCUIT BREAKER. NORMAL OPS RETURNED REF FIM 23-15-00.

Part: MODULE — FAILED (APU) · airframe 19,411 hrs · 6,040 cycles

DURING PRESSURIZATION CHECK, A LOUD NOISE WAS HEARD FROM APU AIR INLET. ACFT GROUNDED. ACCOMPLISHED CHECK OF APU AND ACFT WIRING AND RESISTANCE CHECKS OF SAME. REF FIM TASK 49-70, TASK 806. ALL CHECKED OK. REPLACED DATA MEMORY MODULE. INSTALLATION TEST PASSES. NO CURRENT STATUS FAILURES. REF AMM 49-72-11/401.

Part: ENGINE — MALFUNCTIONED (NR 2) · airframe 19,294 hrs · 6,008 cycles

NR 2 ENGINE SLOW TO SPOOL TO 20 ON START. ACFT GROUNDED. DRY MOTORED NR 1 AND NR 2 ENGINES. BOTH ENGINES CRANKED TO 20-N2 IN 14 SECS. STARTED NR 1 AND 2 ENGINES IAW NORMAL START CHECKLIST. BOTH ENGINES STARTED NORMAL.

Part: REGULATOR — CRACKED (BLEED AIR) · airframe 19,162 hrs · 5,970 cycles

WHILE ACCOMPLISHING TSR815527, FOUND NR 1 BLEED AIR REGULATOR CRACKED AT CONNECTOR ATTACH. ACFT GROUNDED. REPLACED NR 1 BLEED AIR REGULATOR. OPS CHECKED GOOD. REF MM 36-11-03. IAW TSR EXISTING FAULT ON INITIAL EVALUATION 47-30027 WAS PRESENT. STEPS 1-3 ACCOMPLISHED. REPLACED NR 1 PRECOOLER CONTROL VALVE SENSOR, LEAK CHECK GOOD.

Part: ACM — FAILED · airframe 19,135 hrs · 5,957 cycles

FMC COMPUTED N1 FOR NR 1 ENG DISPLAYED ON T/O PAGE IS NOT CORRECT. IT DOES NOT ADJUST/CHANGE FOR PACK ON OR OFF. ACFT GROUNDED. PERFORMED LT PACK CONTROL VALVE FUNCTIONAL INSTALLATION TEST REF MM 21-51-01, STEPS 4GH. OPS CHECK AND LEAK CHECK OK. CONTINUED T/S, FOUND LT PACK SWITCH POSITION DISAGREEING WITH FMCS DISCRETE PAGE INDICATION. REPLACED P5-10 AIR CONDITIONING MODULE IAW AMM REF 21-51-65-000-801/21-51-65-400-801. OPS CHECKED GOOD. RECIRCULATION SYS CHECKED GOOD IAW AMM 21-25-00-710-802-002.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 18,969 hrs · 5,905 cycles

FMC DISAGREE. ACFT GROUNDED. PERFORMED QRH PROCEDURE, OPS NORMAL.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 18,795 hrs · 5,852 cycles

RT PACK LIGHT ILLUMINATED ON RECALL, DURING LANDING CHECK. ACFT GROUNDED. COULD NOT DUPLICATE. GROUND VERIFICATION OPS CHECKED NORMAL IAW FIM21-53/808. RAN RT PACK FOR OVER 30 MINUTES, NO PACK LIGHT FAULT. ALSO ACCOMPLISHED BOTH TEMP CONT BITE CHECK IAW MM21-61-00, PREV FLT, BITE, & VERIFY ALL GO.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 18,786 hrs · 5,849 cycles

RIGHT PACK LIGHT ILLUMINATED ON RECALL, DURING FINAL APPROACH. ACFT GROUNDED. NR 2 PACK ZONE TEMP CONTROLLER SHOWS ONE FAULT, RT RAM AIR ACTUATOR. RESET FAULT, ACCOMPLISHED BITE TEST. REF MM TASK 21-61-00-700-806-002, OPS CHECKED NORMAL.

Part: CONTROL PANEL — INOPERATIVE (COCKPIT) · airframe 18,760 hrs · 5,840 cycles

CAPTAIN`S COURSE WINDOW SHOWS ALL EIGHTS ON MAIN CONTROL PANEL. ACFT GROUNDED. DUPLICATED. REPLACED MAIN CONTROL PANEL IAW MM 22-11-34, GROUND VERIFICATION, OPS CHECKED NORMAL. ALSO ACCOMP DFCS, LRU, MCP, NR 32 TEST, LAND VERIFY NR 49 TEST, & HGS SENSOR FCC/AT TEST. ALL TEST NORMAL, REF MM22-11-34, 22-11-00, & SMM34-36-00. ACFT REMAINS CAT III A AUTOLAND & HGS QUAL, STATUS SCREW SHOW SAME.

Part: CONTROL PANEL — FAILED (AUTOPILOT) · airframe 18,741 hrs · 5,831 cycles

A/P DISENGAGED TWICE DURING FLT WITH CMD B ENGAGED. ACFT GROUNDED. DFCS BITE SHOWED DISCONNECTS CAUSED BY FAULT 22-11607 MCP DATA INV. ACCOMPLISHED T/S FOR FAULT 22-11607 IAW FIM 22-11, TASK 817 - MCP FAILED INITIAL EVALUATION TEST (FIM 22-11 TASK 803). REPLACED MODE CONTROL PANEL IAW MM 22-11-34-000-801/ MM 22-11-34-400-801. PERFORMED DFCS GROUP 32 (MCP LRU) TEST IAW MM 22-11-34-740-801, DFCS GROUP NR 49 (LAND VERIFY) TEST IAW MM 22-11-00, AND HGS SENSOR TEST FOR FCC/AT IAW HGS SMM 34-36-00. ALL TESTS PASS.

Part: STRINGER CLIP — CRACKED (BS 500E) · airframe 18,719 hrs · 5,825 cycles

STRINGER CLIP AT BS 500E, S2R IS CRACKED. ACFT GROUNDED. R & R.

Part: BATTERY PACK — NO TEST (EMERGENCY LIGHTS) · airframe 18,719 hrs · 5,825 cycles

EMERGENCY LIGHT SYS BATTERY PACK M1673, FAILED CAPACITY CHECK. ACFT GROUNDED. REMOVED & REPLACED BATTERY PACK M1673 IAW AMM 33-51-06-960-805. OPS CHECKED GOOD.

Part: SKIN — DENTED (BS 500D) · airframe 18,719 hrs · 5,825 cycles

BS 500 SATCOM ANTENNA DOUBLER IS CONCAVED WITH A POSSIBILITY TO CREATE A WATER POOLING EFFECT. ACFT GROUNDED. INSTALLED DOUBLER IAW SRM 53-00-01-2R-16, REPAIR 16. NDT IAW NDT MANUAL PT6 51-00-19. PROCEDURE 23. ALODINED PRIMED AND PAINTED IAW SRM 51-20-01.

Part: SEAT TRACK — CRACKED (BS 727B) · airframe 18,719 hrs · 5,825 cycles

SEAT TRACK AT BS A 727B, LBL24.75 HAS A CRACK INDICATION AT THE AFT OTBD HOLE. REPAIRED SEAT TRACK IAW EA 800-53EA-10875, REV NEW AND REO-G16454, REV B.

Part: SEAT TRACK — CRACKED (BS 727B) · airframe 18,719 hrs · 5,825 cycles

SEAT TRACK AT BS 727B, LBL 45.50 HAS A CRACK INDICATION AT 2 AFT SPLICE STRAP HOLES. REPAIRED SEAT TRACK IAW EA 800-53EA-10875, REV NEW AND REO-G16454, REV B.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMS) · airframe 18,670 hrs · 5,811 cycles

FMC DISAGREE ANNUNCIATED. ACFT GROUNDED. QRH PROCEDURE CARRIED OUT, OPS NORMAL.

Part: CONTROL PANEL — MALFUNCTIONED · airframe 18,670 hrs · 5,811 cycles

MODE CONTROL PANEL WENT BLANK AFTER POWER TRANSFER (GRN TO APU). ACFT GROUNDED. CYCLED ACFT POWER, PERFORMED MODE CONTROL PANEL INSTALLATION TEST REF MM 22-11-34. NO FAULTS FOUND.

Part: ALTERNATOR — FAULTED (NR 2 ENG) · airframe 18,537 hrs · 5,774 cycles

WHILE ACCOMPLISHING T/C 78273000 FOUND FAULT ON NR 2 ENGINE SHORT TIME 73-11272. THE ALTERNATOR VOLTAGE INPUT TO THE EEC IS OUT OF RANGE. FAULT FOR LAST 2 FLIGHTS. ACFT GROUNDED. REMOVED EEC ALTERNATOR AND ROTOR REF MM 73-21-08. INSTALLED NEW ALTERNATOR AND ROTOR REF MM 73-21-08. IDLE POWER LEAK CHECKED NORMAL REF MM 71-00-00. NO LEAKS NOTED. EEC BITE CK NORMAL REF MM 71-00-00 AND EEC BITE TEST NORMAL REF MM 73-21-00. NO FAULTS. ETOPS SIGNIFICANT SYS GROUND VERIFICATION SUCCESSFUL.

Part: DETECTOR — BROKEN (NR 1 ENGINE) · airframe 18,334 hrs · 5,720 cycles

ENG NR 1 OVERHEAT LIGHT AND MASTER CAUTION ILLUMINATED ON CLIMBOUT AT ABOUT 15,000 FT. PERFORMED QRH PROCEDURES. ACFT GROUNDED. DIVERSION TIME -15 MINUTES. AFTER ENGINE START, NR 1 ENGINE OVERHEAT AND MASTER CAUTION LIGHT ILLUMINATED. PERFORMED QRH PROCEDURES, SHUTDOWN ENGINE & RETURNED TO GATE. FOUND LOWER FAN DETECTOR END BROKEN. REPLACED UPPER FAN DETECTOR, LOWER FAN DETECTOR, RT CORE DETECTOR AND LT CORE DETECTOR AND ENG/APU FIRE/ OVHT DETECTOR CONTROL AS PRECAUTIONARY REF AMM 26-11-01. RAN ENGINE OPS CHECKED NORMAL.

Part: OVERHEAT SENSOR — FALSE ACTIVATION (NR 1 ENGINE) · airframe 18,229 hrs · 5,686 cycles

NR 1 ENGINE OVERHEAT LIGHT ILLUMINATED AFTER ENGINE START THEN WENT OUT CALLED MC CONTINUED TAXI WITH LIGHT OUT TWO MINUTES LATER NR 1 ENGINE OVERHEAT LIGHT ILLUMINATED AGAIN. ACFT GROUNDED. ACCOMPLISHED TASK 26-11-00-710-801 AFTER COOL AND OPENED BOTH ENG COWL AND THRUST REVERSER COWLS. LIGHT ON NR 1 OVERHEAT EXTINGUISHED AND TEST NORMAL. RAN ENGINE, NO OVERHEAT LIGHT ILLUMINATED. POS AND BITE CHECKED GOOD. PERFORMED FIM TASK 26-10-00-810-805, RESISTANCE OF A AND B LOOPS ON NR 1 ENG GOOD. NO FAULTS FOUND. INSPECTED DUCTS AND DETECTION LOOPS IN NR 1 ENG NO DISCREPANCIES NOTED.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 17,972 hrs · 5,617 cycles

AFTER STARTING NR 1 ENGINE HAD AND ENGINE OVERHEAT LIGHT ON THE FIRE WARINING PANEL. ALL OTHER INDICATIONS NORMAL, LIGHT EXTINGUISHED AFTER ABOUT 30-40 SECONDS. ACFT GROUNDED. PERFORMED ENGINE AND APU FIRE DETECTION BITE REF AMM 26-10-TASK 801 BITE CHECKED PAST NO FAULTS FOUND. OPEN NR 1 ENGINE FAN COWL, INSPECT FIRE AND OVERHEAT DETECTION TEST. TEST PAST, CREW PERFORMED NR 1 ENGINE START, STARTED NORMAL, NO FAULTS NO HISTORY PAST 30 DAYS. GROUND VERIFICATION SUCCESSFUL.

Part: ACTUATOR — MALFUNCTIONED (RAM AIR DOOR) · airframe 17,803 hrs · 5,564 cycles

RIGHT PACK LIGHT ILLUMINATES DURING RECALL OF MASTER CAUTION, EXTINGUISHES WHEN MASTER CAUTION IS RESET. ENROUTE RT RAM DOOR FULL OPEN LIGHT. REMAINED ILLUMINATED ENTIRE FLIGHT. CIRCUIT BREAKERS WERE IN. ACFT GROUNDED. PERFORMED BITE CHECK OF BOTH ZONE TEMP CONTROLLERS, FAULTS RT RAM DOOR ACTUATOR. REPLACED RT ACTUATOR AND RE-ACCOMPLISHED BITE OF ZONE TEMP CONT. ALL OPS NORMAL, NO FAULTS. PACK LIGHT REMAINS OFF DURING RECALL. OPERATED BOTH PACKS WITH NO DISCREPANCIES. ALL OPS NORMAL.

Part: FMC — MALFUNCTIONED · airframe 17,790 hrs · 5,561 cycles

FMC DISAGREE MESSAGE DISPLAYED. ACFT GROUNDED. COMPLETED QRH CHECKLIST 11.2 FMC DISAGREE MESSAGE NO LONGER DISPLAYED.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 17,769 hrs · 5,557 cycles

ELECT LIGHT ON OVERHEAD ELECTRICAL PANEL ILLUMINATED AFTER ENGINE START. ACFT GROUNDED. ACCOMPLISHED FIM TASK 24-31-801 SPCU INOP FAULT DISPLAYED. FIM TASK 24-34-802 SPCU ACCOMPLISHED. STANDBY POWER CONTROL UNIT C/B SPCU NORMAL AND SPCU STANDBY BREAKERS OPENED AND RESET. ELECT LIGHT MESSAGE RESET WITH NO FURTHER DISCREPANCIES. NO FAULTS LAST 60 DAYS.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 17,733 hrs · 5,547 cycles

DURING LANDING, MASTER CAUTION RECALL RT PACK LIGHT CAME ON. QRH RESET PROCEDURE DID NOT RESET THE LIGHT. ACFT GROUNDED. NR 2 PACK TEMP CONTROLLER FAULTED RT RAM DOOR ACTUATOR. ACCOMPLISHED BITE REF MM 21-61-00, NO FAULTS FOUND. RESET FAULT, RT PACK TEMP CONTROL, OPS NORMAL.

Part: STARTER GEN — FAILED (APU) · airframe 17,514 hrs · 5,494 cycles

APU MAINT LIGHT ILLUMINATED WHILE PUSHING. AFTER ENG START AND APU WAS SHUTDOWN THE FAULT LIGHT ILLUMINATED FOR 5 MINS AND THEN EXTINGUISHED. ACCOMPLISHED FIM 49-40 TASK 806. STARTER-GENERATOR FAILS IAW SAME. REPLACED THE APU STARTER-GENERATOR REF AMM 49-41-21.

Part: CONTROL VALVE — FAILED (RT A/C PACK) · airframe 17,509 hrs · 5,492 cycles

RIGHT PACK TEMP CONTROL VALVE FAIL LIGHT ILLUMINATES DURING PACK/TEMP CONTROL BITE CHECK. REPLACED RT PACK TEMP CONTROL VALVE IAW MM 21-51-10. INSTALLATION TEST PASSED.

Part: HEATER — MALFUNCTIONED (WINDOW) · airframe 17,373 hrs · 5,459 cycles

LEFT SIDE WINDOW HEAT ON LIGHT EXTINGUISHED WITH COLD OUT SIDE TEMP. CONFIRMED. PERFORMED WINDOW O/H TEST & RESET. OPS CHECK & GROUND VERIFICATION CHECK GOOD OF L2 WINDOW HEAT REF MM 30-41-00.

Part: DRIVE UNIT — FAILED (WX RADAR ANTENNA) · airframe 17,321 hrs · 5,445 cycles

WEATHER RADAR FAIL FLAG ON ND. FAULT CODE 344-050-32. VERIFIED FAULT RT INOPERATIVE. REPLACED WEATHER RADAR TRANSCEIVER IAW MM 34-43-41. PERFORMED WEATHER RADAR GROUND CHECK, FAULTED ANTENNA IAW MM 34-43-00. REPLACED WEATHER RADAR ANTENNA DRIVE UNIT IAW AMM 34-43-11/401. WEATHER RADAR SYS OPERATIONAL, TESTED GOOD.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 17,246 hrs · 5,425 cycles

RIGHT PACK LIGHT COMES ON DURING RECALL, EXTINGUISHES WHEN MASTER CAUTION REST. PERFORMED BITE TEST OF RT PACK/ZONE TEMP CONTROLLER REF MM 21-51-00-700-803. NO FAULTS NOTED AFTER SEVERAL TESTS. GROUND VERIFICATION SUCCESSFUL.

Part: CONTROL VALVE — LEAKING (A/C PACK) · airframe 17,000 hrs · 5,357 cycles

RIGHT PACK LIGHT ILLUMINATED DURING RECALL. ACFT GROUNDED. CONFIRMED FAULT, NR 2 TEMP CONTROLLER LOGGED THIS PACK TCV. ACCOMPLISHED FIM 21-62 TASK 831 RT TEMP CONTROL VALVE - FAULT ISOLATION. FOUND TCV (V141) LOOKING OVERHEATED AND LEAKING OIL. REPLACED TCV (V141) REF AMM 21-61-21, OPS CHECK GOOD ON GROUND.

Part: SHUTOFF VALVE — WORN (NR 1 ENGINE) · airframe 16,599 hrs · 5,254 cycles

LT ENG PRSOV STUCK OPEN WITH ENGINE OFF. PERFORMED TROUBLESHOOTING TASK 36-00-00-860-807, SECTION C, DETERMINED PRSOV VALVE TO BE WORN EXCESSIVELY. REMOVED PRSOV VALVE ON NR 1 ENGINE REF AMM 36-22-04-000-801. INSTALLED PRSOV VALVE ON NR 1 ENGINE REF AMM 36-11-04-400-801. OPS CHECKED GOOD AND LEAK CHECKED GOOD IAW AMM 36-11-04-400-801.

Part: OIL SYSTEM — LOW (APU) · airframe 16,400 hrs · 5,204 cycles

BLUE MAINTENANCE LIGHT ILLUMINATED AFTER APU START. FOUND MAINT MESSAGE 49-91277 OIL QTY LOW. SERVICED OIL TO FULL IAW MM 12-13-31. NO HISTORY LAST 30 DAYS. POSITIVE MAINT ACTION COMPLETED. OK FOR CONTINUED SERVICE.

Part: STARTER GEN — INOPERATIVE (APU) · airframe 16,241 hrs · 5,161 cycles

ON TAXI IN, STARTED APU BOTH ENGINES RUNNING BATTERY DISCHARGE LIGHT ILLUMINATED FOR 30 SECONDS. DURING START SEQUENCE THE WENT OUT. ALSO OCCURRED IN GATE WITH GROUND POWER CONNECTED DURING START SEQUENCE. ACFT GROUNDED. UPON START, FOUND THAT BATTERY DISCHARGE LT ILLUMINATED MOMENTARILY, ALSO FOUND FAULT CODE 49-41250 ON CURRENT STATUS IN CDU, START CONVERTER UNIT SHOWS START SYS INOPERATIVE. R & R STARTER GENERATOR, REF MM 49-41-21. OPS & LEAK CHECKED GOOD. ONCE APU WAS STARTED NO BATTERY DISCHARGE LT AND CDU SHOWED FAULT CLEARED & NO FAILURES IN CURRENT STATUS.

Part: FAN — OUT OF BALANCE (NR 2 ENGINE) · airframe 15,893 hrs · 5,071 cycles

NR 2 ENGINE VIBRATION INDICATE BETWEEN 1.9-2.0 AT 84-97 N1 CAUSING AN AUDIBLE AND TACTILE VIBRATION. VARYING THE RPM WILL CAUSE THE AUDIBLE AND TACTILE VIBRATION TO INCREASE FOR A PERIOD AND THEN SETTLE DOWN TO A LESSER VALUE. PERFORMED ONBOARD FAN TRIM BALANCE PROCEDURE IAW MM 71-00-00-750. WEIGHTS AT HOLE POSITIONS NR 17 & NR 21 ARE P11. NR 21, NR 22 & 23 ARE P13. ORIGINAL WEIGHTS AT HOLES NR 15, NR 18 & NR 19 REPLACED WITH P14S AND NR 21 REMAINED THE SAME. VIBRATION LEVELS BELOW 1.0.

Part: BLADE — LACK OF LUBE (NR2 ENGINE) · airframe 15,881 hrs · 5,068 cycles

PILOT REPORTED THAT NR 2 ENGINE VIBRATION 2.4 - 2.6. DURING TAKEOFF AND CRUISE. ACCOMPLISHED WO 187681, FAN BLADE LUBE, BOROSCOPE & MX. ACCOMPLISHED VIBRATION SURVEY AMM 71-00-00-700-814-F00. ALL INDICATION WITHIN SERVICEABLE LIMITS.

Part: START VALVE — FAILED (NR 1 ENGINE) · airframe 15,504 hrs · 4,962 cycles

START VALVE OPEN, LIGHT ON NR 1 ENGINE REMAINS ILLUMINATED AFTER ENGINE START. ALL START INDICATIONS NORMAL. R & R NR 1 ENGINE START VALVE. OPS CHECKED GOOD. NO LEAKS NOTED. REF MM 80-11-03-000-801-F00, AND 71-00-00-700-809-F00.

Part: START VALVE — INOPERATIVE (NR 1 ENGINE) · airframe 14,856 hrs · 4,759 cycles

ON NR 1ENGINE START , STARTER VALVE TAKES 15 SECONDS TO OPEN. REMOVED AND INSTALLED NR 1 ENGINE START VALVE IAW AMM 80-11-03. OPS CHECKED START VALVE, VALVE OPENED IMMEDIATELY. LEAK CHECK GOOD.

Part: REGULATOR — FAILED (NR 1 ENGINE) · airframe 14,930 hrs · 4,790 cycles

NR 1 ENG BLEED AIR REGULATOR FAILED. OPS CHECK FOR FIRE CONTROL PANEL B/P. ACFT GROUNDED. R & R BAR IAW MM 36-11-03. OPS & LEAK CHECKED GOOD.

Part: EEC — MALFUNCTIONED (NR 2 ENGINE) · airframe 14,890 hrs · 4,776 cycles

FOUND MESSAGE NR 73-11282 EEC CHANNEL IS NOT ENERGIZED WITH THE ALTERNATOR VOLTAGE ON ENGINE NR 2. ACFT GROUNDED. FOR ENGINE NR 2 ACCOMPLISHED FIM 73-27-00-810-805-F00. ONLY 1 OCCURRENCE OF THIS FAULT LOGGED IN FAULT HISTORY. AFTER ENGINE RUN AND EEC TEST, FLIGHT LEG 0 SHOWED NO FAULTS.

Part: WIRE HARNESS — FRAYED (NR 1 ENGINE) · airframe 14,888 hrs · 4,775 cycles

ENGINE OVERHEAT LIGHT FAILS TO ILLUMINATE DURING TEST. ACFT GROUNDED. PERFORMED TASK 26-10-00-810-801 NO FAULTS NOTED, CYCLED A/C POWER, NR 1 ENG OVERHEAT LIGHT TESTED NORMAL. AFTER STARTING NR 1 ENGINE, THE OVERHEAT DETECT LIGHT ILLUMINATED. AFTER APPROX 5 SEC, THE OVERHEAT LIGHT EXTINGUISHED. AFTER TESTING AGAIN, THE NR 1 ENGINE OVERHEAT LIGHT FAILED TO ILLUMINATE. PERFORMED BITE ON ENGINE/APU FIRE DETECT FIM 26-10, TASK 801 NO FAULTS. VISUALLY INSP ALL TERMINAL ENDS ON A AND B LOOPS NR 1 ENGINE NO DEFECTS NOTED. RANG OUT WIRES IAW FIM 26-10-00-810-805, STEP F (3) (4) ALL WIRES RANG GOOD. RAN ENGINE AND PERFORMED OPS CK AMM 26-10-00 OPS NORMAL, UNABLE TO DUPLICATE DEFECT. REPLACED ENG AND APU FIRE CONTROL PANEL. FOUND ONE TERMINAL LUG ON RIGHT CORE A LOOP FRAYED. REPLACED A LOOP CORE FIRE DETECTION HARNESS. REF WDM 26-11-11, IPC 26-11-02-01, AMM 26-11-02.

Part: ACTUATOR — FAULTED (RAM AIR) · airframe 14,908 hrs · 4,783 cycles

RIGHT PACK LIGHT ILLUMINATED DURING RECALL CHECK. RT PACK LIGHT WENT OUT WHEN MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED FIM 21-62 TASK 801. FOUND RAM AIR ACTUATOR FAULT. RESET FAULT. BITE TEST GOOD.

Part: SENSOR — FAILED (TEMP CONTROL) · airframe 14,443 hrs · 4,623 cycles

RIGHT RAM AIR DOOR OPEN LIGHT ON DURING FLT AT CRUISE ALTITUDE. SUBSEQUENT CLOSED AFTER APRROX 45 MINS. ACCOMPLISHED T/C 78121000, CLEANING OF PRIMARY AND SECONDARY HEAT EXCHANGERS. NO DEFECTS NOTED. R & R RT RAM AIR CONTROL TEMP SENSOR, T482, IAW AMM 21-51-50-00-801 & AMM 21-51-50-400-801. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST. NO FAULTS NOTED IAW AMM 21-61-00-700-806-002-2.

Part: WARNING LIGHT — FALSE ACTIVATION (A/C PACK) · airframe 14,528 hrs · 4,653 cycles

ON RECALL, RIGHT PACK LIGHT ILLUMINATED. CLEARS WITH MASTER CAUTION RESET. NR 2 CONTROLLER SHOWS RAM AIR ACT FAULT ON BIT AND PREVIOUS FLT TESTS. VERIFY TEST PASSED. RESET FAULT. FAULT DID NOT RETURN. BITE TEST NR 2 CONTROLLER GOOD. REF FIM 21-62/836. FUNCTION CHECK RT PACK GOOD.

Part: WARNING LIGHT — NO INDICATION (WINDOW HEAT) · airframe 14,389 hrs · 4,610 cycles

R1 WINDOW HEAT GREEN ON LIGHT, NOT ILLUMINATED. R1 WINDOW HEAT TESTED GOOD REF 30-41-00-710-801.

Part: WARNING LIGHT — FALSE ACTIVATION (FMC) · airframe 14,281 hrs · 4,578 cycles

FMC DISAGREE MESSAGE ON TAXI. ACFT GROUNDED. ACCOMPLISHED QRH. OPS NORMAL.

Part: ACCESSORY UNIT — FAILED (RAM AIR DOOR) · airframe 14,201 hrs · 4,556 cycles

CLIMBING OUT THROUGH FL 350, NOTICED RIGHT RAM AIR DOOR FULL OPEN LIGHT ILLUMINATED. EXTINGUISHED SHORTLY AFTER LEVEL-OFF FL 370. ALL OTHER INDICATIONS NORMAL. RESTORED RIGHT RAM AIR DOOR MODULATION SYSTEM IAW AMM 21-00-00-440-802. TESTED RT RAM DOOR IAW AMM 21-61-00-700-806-002. OP CHECKED GOOD. RAM AIR DOOR LIGHT ILLUMINATED PROPERLY. COULD NOT DUPLICATE ORIGINAL DISCREPANCY. R & R AIR CONDITIONING ACCY UNIT.

Part: WARNING LIGHT — FALSE ACTIVATION (TEMP CONTROLLER) · airframe 14,244 hrs · 4,569 cycles

ZONE TEMP LIGHT ILLUMINATED MASTER CAUTION RESETS LIGHT, PRESS RECALL & LIGHT ILLUMINATES. ACFT GROUNDED. PERFORMED PACK ZONE TEMP CONTROLLER BITE CHECK IAW AMM 21-61-00-700-806-002. OPS CHECKED GOOD. DID NOT DUPLICATE ORIGINAL DISCREPANCY AND FOUND NO MAINT HISTORY WITHIN THE PAST 10 DAYS.

Part: FIRE WARNING — MALFUNCTIONED · airframe 13,974 hrs · 4,492 cycles

FIRE WARNING TEST FAIL, NO LIGHT, ENG 1 OVERHEAT AND NR 1 RED HANDLE LIGHT. ACFT GROUNDED. PERFORMED OPS TEST 26-11-00-710-801, STEP E. OPS NORMAL. PERFORMED BITE 26-10-00-810-801, NO FAULTS. NO RECENT HISTORY.

Part: ACTUATOR — FAULTY (RAM AIR DOOR) · airframe 13,810 hrs · 4,442 cycles

DURING CLIMB AWAY FROM SEA THE RIGHT "RAM DOOR FULL OPEN" LIGHT STAYED ON THROUGH 11 500 THEN ONLY AT APPROXIAMETLY 32 000 IT CAME ON AGAIN TILL LEVEL OFF AT 36,000. IT EXTINGUISHED AND STAYED OUT THROUGHOUT CRUISE FLIGHT. LIGHT CAME ON BELOW 6,000 DURING DESCENT. ACFT GROUNDED. REPLACED RT RAM AIR INLET ACTUATOR IAW AMM 21-51-21, PAGEBLOCK 401. VERIFIED RAM AIR INLET ACTUATOR INSTALLATION TEST WORKS NORMAL. ZONE TEMP CONTROLLERS BITE TESTED GOOD.

Part: UNKNOWN — UNKNOWN · airframe 13,719 hrs · 4,408 cycles

WHEN STARTING THE LT NR 1 ENGINE IT TAKES 5 SEC FOR THE START VALVE OPEN LIGHT TO COME ON AS WELL AS 5 SEC BEFORE N2 ROTATION HAS STARTED WHEN START SWITCH MOVES TO OFF IT TAKES THE SV OPEN LIGHT 4 SECONDS TO GO OUT. NEXT FLIGHT CREW PERFORMED NR 1 ENG START MAINT/FLIGHT CREW REPORTED NO DISCREPANCIES ON START UP OR SHUTDOWN. NO LEAKS NOTED REF MM 80-11-03, SSM 80-11-11, PG 101. ACFT OK FOR CONT SERVICE.

Part: WARNING LIGHT — FALSE ACTIVATION (RAM AIR DOOR) · airframe 13,614 hrs · 4,372 cycles

RT RAM DOOR FULL OPEN LIGHT REMAINED ON THROUGHOUT CLIMB. LIGHT WENT OUT AFTER 10 MINUTES AT FL 360. ACFT GROUNDED. PERFORMED BITE CHECK OF BOTH PACK/ZONE TEMP CONTROLLERS AND FOUND NO FAULTS. COULD NOT DUPLICATE DISCREPANCY. REF AMM 21-61-00-700-806-002 FOR TESTING.

Part: MODULATING VALVE — FAULTED (CABIN TEMP) · airframe 13,569 hrs · 4,354 cycles

DURING MASTER CAUTION RECALL AFTER START ZONE TEMP (CONT CAB) ILLUMINATED. LIGHT EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. CHECKED CABIN TEMP CONTROLLERS FOR DEFECT ISOLATION. FOUND FLT DECK TRIM MOD VALVE FAULTED. COMPLETED VERIFY TEST REF MM 21-61-00, TEST PASSED FLIGHT DECK TEMP CONTROL, OPS NORMAL.

Part: PROBE — FAULTY (NR 2 ENGINE) · airframe 13,505 hrs · 4,335 cycles

DIAGNOSTICS REPORTED NR 2 ENGINE TREND DATA CONTINUES TO SHOW A SHIFT IN DELTA CRUISE AND TAKE OFF MARGIN INDICATIVE OF EGT INDICATION ERRORS. PREVIOUS MAINT EGT CONNECTOR CLEAN. NO FAULTS ON CURRENT FAULTS & FLIGHT FAULT HISTORY. ACCOMPLISHED AMM TASK 77-21-01-200-801-F00. VERIFIED DP1013 AT S4 STILL CLEAN. SUSPECT T49.5S4 (T524) LEFT UPPER EGT PROBE FAULTY. REPLACED T49.5S 4 AS PRECAUTIONARY REF AMM TASK 77-21-01, OPS CHECKED NORMAL.

Part: WARNING LIGHT — ILLUMINATED (RAM AIR DOOR) · airframe 13,503 hrs · 4,334 cycles

RIGHT RAM DOOR FULL OPEN LIGHT REMAINED ILLUMINATED THROUGHOUT CLIMB TO FLIGHT LEVEL 380. CREW NOTED THAT RAM AIR FULL OPEN LIGHT EXTINGUISHED AFTER REACHING CLIMB & OPERATED NORMALLY FOR REST OF FLIGHT. ACCOMPLISHED TEMP CONTROL BITE CHECK PER INSTRUCTIONS ON TEMP CONTROLLER. BITE CHECK NORMAL NO ABNORMALITIES NOTED. GVI OF RAM AIR DOORS OK NO DEFECTS OK FOR SERVICE.

Part: ACTUATOR — MALFUNCTIONED (AC BAY) · airframe 13,313 hrs · 4,269 cycles

IN CRUISE RAM DOOR FULL OPEN LIGHT ILLUMINATED BRIEFLY RIGHT PACK. REMOVED AND REPLACED RT RAM AIR ACT AMM REF 21 51 21, OPS NORMAL.

Part: UNKNOWN — MALFUNCTIONED (COCKPIT) · airframe 13,312 hrs · 4,268 cycles

RIGHT PACK LIGHT CAME ON, ON RECALL AFTER QRH. RECALL PUSHED LIGHT CAME BACK ON. RESET CONTROLLERS AND OPS CHECKED IAW AMM 21 61 20, OPS CHECK GOOD. RAN PACKS FOR OVER TEN MINUTES AND CHECKED RECALL AFTERWARDS NO FAULTS NO HISTORY ON RT PACK LAST 10 DAYS.

Part: INDICATOR — DEFECTIVE (REFUEL PANEL) · airframe 13,274 hrs · 4,258 cycles

CENTER FUEL QTY INDICATOR ON REFUELING PANEL IS BLANK. FQIS TEST PASSED. CYCLED PWR TO REFUEL PANEL NO HELP. COCKPIT INDICATION OK. PER AMM 28 41 61 400 801 INSTALLED SERVICEABLE FUEL QUANTITY INDICATOR AT REFUEL PANEL CENTER POSITION OPS NORMAL.

Part: BLEED VALVE — FAILED (NR 1 ENGINE) · airframe 12,299 hrs · 3,996 cycles

ON CLIMBOUT DUCT PRESSURE DIFFERENTIAL 22 PSI (R50PSI LT28PSI) CRUISE DIFFERENTAIL PRESSURE (10PSI RT40PSI LT 30PSI) A/C PRESSURISED NORMALLY. ACFT GROUNDED. ACCOMPLISHED LT ENGINE BLEED AIR SYSTEM HEALTH CHECK PER MM 36-11-00. FOUND BLEED AIR REGUALATOR AND HIGH STAGE VALVE BAD. REPLACED BLEED AIR REGUALATOR PER MM 36-11-03. REPLACED HIGH STAGE VALVE PER MM 36-11-06. BOTH OPS AND LEAK CHECKED GOOD.

Part: IDG — FAILED (NR 2 ENGINE) · airframe 12,239 hrs · 3,984 cycles

AT GATE PRIOR TO PUSH NR 2 DRIVE LIGHT IS NOT ILLUMINATED WITH ENGINES NOT RUNNING. LIGHT PRESS TO TEST OPERATES NORMALLY. CONFIRMED NR 2 ENG DRIVE LIGHT NOT ILLUMINATED W/ ENGINE NOT RUNNING. REPLACED NR 2 ENG IDG W/ SERVICEABLE PER AMM TASK 24 11 11 400 801. OPS CK PERFORMED PER AMM TASK 24 11 00 700 803 & OPS CHECK FOUND OK.

Part: ACTUATOR — MALFUNCTIONED (RAM AIR DOOR) · airframe 12,181 hrs · 3,966 cycles

LEFT PACK ILLUM ON APPROACH, FAULT CODE 215 250 41. REPLACED THE LEFT RAM AIR DOOR EXHAUST ACTUATOR PER AMM 21 51 21.

Part: UNKNOWN — MALFUNCTIONED (COCKPIT) · airframe 12,150 hrs · 3,957 cycles

LT PACK LIGHT ILLUMINATED ON RECALL AFTER LANDING. BITE CHECK OF NR 1 TEMP CONTROLLER LOGGED RAM AIR ACTUATOR FAULT. CLEARED FAULT AND BITE CHECK GOOD OF NR 1 TEMP CONTROLLER. REF M/M 21 61 20.

Part: WIRE HARNESS — DAMAGED (NR 1 ENGINE) · airframe 12,135 hrs · 3,949 cycles

NR 1 ENGINE J9 HARNESS DIRECTLY BENEATH INBD T/R DUCT HOLD OPEN ACTUATOR HAS DAMAGED REPAIR AT BEND OF HARNESS. REPLACED NR 1 ENG J9 HARNESS REF AMM 73 21 06, OPS NML PER SAME.

Part: GUIDE ARM — OUT OF ADJUST (ENTRY DOOR) · airframe 8,289 hrs · 2,694 cycles

FOUND L1 DOOR NOT PARALLEL WITH DOOR CUTOUT IN FINAL STAGES OF CLOSING MAKING DOOR DIFFICULT TO CLOSE ADJ. L1 DOOR GUIDE ARM ADJUSTMENT PER B737 800 MM 52 11 00 820 801 STEP H PAGES 2 AND 3. DOOR NOW CLOSES NORMALLY.

Part: STRUCTURE — WORN (FUSELAGE) · airframe 5,292 hrs · 1,758 cycles

ECS HIGH PRESSURE DOOR LATCH WEAR ON LOWER CHORD BLENDED DAMAGED AREA ON UPPER SURFACE OF LOWER CHORD AND INSTALLED REPAIR STRAP & FILLER IAW ASA EA 800 53EA 02944.