N536AS

Part: SIGN — DETACHED (ZONE 200) · airframe 49,537 hrs · 14,710 cycles

MID CABIN EXIT SIGN CEILING 13 HANGING BY WIRE. GROUNDED - YES. REATTACHED LIGHT ASSEMBLY PER AMM 33-51-01 OPS CHECK GOOD.

Part: SKIN — CORRODED (ZONE 100) · corrosion level 2 · airframe 46,351 hrs · 13,623 cycles

FUSELAGE SKIN AT STA 1088 STGR 15R TO STGR 17R HAS SIGNS OF CORROSION GROUNDED - YES. ACCOMPLISHED CATEGORY A MINOR REPAIR TO AFT FUSELAGE SKIN P/N 148A3321-13 AND P/N 148A3820-2 AT STA 1088 SGTR 16AR-17R IAW EA 800-53EA-27872 REV 00

Part: SKIN — CORRODED (ZONE 100) · corrosion level 2 · airframe 46,351 hrs · 13,623 cycles

FUSELAGE SKIN AT STA 1016 FROM STGR 27R TO 24L HAS SIGNS OF CORROSION GROUNDED - YES. ACCOMPLISHED CATEGORY B MAJOR REPAIR TO FUSELAGE SKIN PANEL 147A3400-4 AT STA 1016 BETWEEN STGR 24L-26R IAW EA 800-53EA-27863 REV 00

Part: SKIN — CORRODED (ZONE 100) · corrosion level 2 · airframe 46,351 hrs · 13,623 cycles

WATER SERVICE DOOR CUTOUT SKIN HAS SIGNS OF CORROSION GROUNDED - YES. ACCOMPLISHED CATEGORY B MINOR REPAIR TO FUSELAGE SKIN PANEL 147A3400-4 AT STA 907-927 STGR 25R- 27R AT WATER SERVICE PANEL CUTOUT IAW EA#800-53EA-27860 REV00

Part: SKIN — CORRODED (ZONE 100) · corrosion level 2 · airframe 46,351 hrs · 13,623 cycles

FUSELAGE SKIN AT STA 992.8 TO STA 1006 BETWEEN STGR 24L TO STGR 25L HAS SIGNS OF CORROSION SRXR430X. GROUNDED - YES. ACCOMPLISHED CATEGORY A MINOR REPAIR AT FUSELAGE SKIN 147A3400-4 STA 992-1006 STGR 24L-25L IAW EA 800-53EA-27858 REV00

Part: SKIN — CORRODED (ZONE 100) · corrosion level 2 · airframe 46,351 hrs · 13,623 cycles

FUSELAGE SKIN AT STA 1088 BETWEEN STGR 12L TO STGR 21L HAS SIGNS OF CORROSION SRXR430X. GROUNDED - YES. ACCOMPLISHED CATEGORY A MINOR REPAIR AT FUSELAGE SKIN PANEL 148A3311-12 AT STA 1088 BETWEEN STGR 16L AND 17L IAW EA#800-53EA-27874 REV 00

Part: SKIN — CORRODED (ZONE 100) · corrosion level 2 · airframe 46,352 hrs · 13,623 cycles

FUSELAGE SKIN AT STA 1088 BETWEEN STGR 12L TO STGR 21L HAS SIGNS OF CORROSION SRXR430X. GROUNDED - YES. ACCOMPLISHED CATEGORY A MINOR REPAIR AT FUSELAGE SKIN PANEL 148A3311-12 AT STA 1088 BETWEEN STGR 16L AND 17L IAW EA#800-53EA-27874 REV 00 SRXR430X.

Part: SKIN — CORRODED (ZONE 100) · corrosion level 2 · airframe 46,351 hrs · 13,623 cycles

TOILET VENT BETWEEN STR 21L AND 22L HAS SIGNS OF CORROSION. GROUNDED - YES. ACCOMPLISHED CATEGORY B MAJOR REPAIR TO FUSELAGE SKIN PANEL 147A3110-3 AT STA 20L-23L AT AFT LAV VENT CUTOUT IAW EA 800-53EA-27859 REV 00.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 42,582 hrs · 12,294 cycles

L FWD WINDOW HEAT CAUTION AT CRUISE. GROUNDED - YES. FOUND WHCU SHOWING SENSOR FAULT IN BITE. PERFORMED TEMPERATURE SENSOR RESISTANCE MEASUREMENT PER AMM TASK 30-41-21-760-801. FOUND PRIMARY SENSOR ON L1 WINDOW OPEN. SWITCHED WINDOW TO SPARE SENSOR AND SENSOR READS WITHIN LIMITS AND WINDOW NOW OPERATES NORMALLY.

Part: WINDSHIELD — CRACKED (FLIGHT COMPARTME) · airframe 42,581 hrs · 12,293 cycles

RIGHT FWD WINDOW OVERHEAT LIGHT FOLLOWED BY RIGHT FWD WINDSHEILD CRACK ON OUTER PANEINIDRATED MIG 2C 40-0052475 37813 10-26-2023. GROUNDED - YES. AIR TURNBACK - REMOVED # 1 FO WINDOW, REF AMM 56-11-11. INSTALLED FO WINDOW FOUND WINDOW DIMENSIONS TO BE OUT OF LIMITS, ORDERED NEW FO WINDOW. REMOVED BAD FROM STOCK WINDOW. ACCOMPLISHED AMM 56-11-11-400-801 STEP G.(1) THRU 5. NO DEFECTS NOTED OK TO INSTALL WINDOW. REF TO EA 800-56EA-26209 ACCOMPLISHED WINDOW INSTALLATION PER AMM 56-11-11-400-801 WITH THE FOLLOWING DEVIATION WINDOW GAP UP TO A MAXIMUM OF 0.101 AS ACCEPTABLE REF AMM 56-11-11-400-801 STEP (3(4). CONTINUED WINDOW INSTALLATION REF AMM 56-11-11-400-801 UP TO STEPS I.(6). COMPLETED INSTALLATION OF FO NO.1 WINDOW REF 56-11-11-400-801. OPS CHECKS GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 42,502 hrs · 12,256 cycles

WHILE ACCOMPLISHING T/C 7827300, FOUND FAULT MSG 73-31712 ON #2 ENG. GROUNDED - YES. ACCOMPLISHED FIM TASK 73-28 TASK 801. #2 ENG BITE EEC TESTED GOOD W/O FAULTS. POSSIBLE INTERMITTENT FAULT.

Part: OIL COOLER — LEAKING (APU) · airframe 41,993 hrs · 12,091 cycles

WHLE PERFORMING TSR #TSR714852FOUND APU OIL COOLER LEAKING. GROUNDED - YES. REPLACED APU OIL COOLER. REF. AMM 49-91-41. INSTALLATION/LEAK CHECK GOOD. PLACARDS REMOVED. THIS CLEARS MEL 49-1B. SEAMC TODD NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 41,460 hrs · 11,898 cycles

LOW OIL PRESSURE INDICATED ON APU AFTER START ATTEMPT. GROUNDED - YES. PERFORMED APU BITE PER FIM 49-60 TASK 801NO FAULTS FOUND. APU OPS CHK GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 41,444 hrs · 11,891 cycles

AFTER LANDING DURING TAX-IN FMC FAILED. FMC ON MENU PAGE AND VTK FLAG INTERMITTENT FLASHING. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 801, L FMC LOGGED PGM FAULT. ACCOMPLISHED FIM 34-61 TASK 807, L FMC OPS NML.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 41,175 hrs · 11,796 cycles

VERIFICATION FLIGHT UNSATISFACTORY. UNABLE TO TRANSMIT ON HF1 & HF2. GROUNDED - YES. CHECKED ALL (8) RAYCHEM PLUGS FOR SECURITY ON FACE OF E8-1 RACK. BOTH HF COAX CONNECTIONS ON THE SIDE OF E8-1 RACK WERE JUST FINGER TIGHT AND INSTALLED TO THE WRONG POSITIONS. SWAPPED COAX PLUGS D8517P AND D8823P AT DISCONNECT BRACKET AE0801D TO THIER CORRECT LOCATIONS PER AE0801D BRACKET LIST AND B737-800 WDM 23-11-11 AND B737-800 AMM 23-11-21. HF 1 & 2 BITE PASSES REF B737-800 FIM 23-11 TASK 801. ALSO, WAS ABLE TO TRANSMIT AND RECEIVE SFO CENTER ON THE GROUND IN ANC.

Part: ACTUATOR — FAULTY (RT RAM INLET) · airframe 41,063 hrs · 11,759 cycles

RH PACK ILLUMINATES AFTER RECALL BUT EXTINGUISHES AFTER MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED R/H RAM AIR INLET ACTUATOR IAW B737-800 AMM 21-51-21 OPS CHECK GOOD.

Part: HARNESS — DAMAGED (#2 ENGINE) · airframe 41,007 hrs · 11,731 cycles

WHILE PERFORMING ASA T/C N8420001, FOUND HARNESSES MW0235, MW0311 & J9 DAMAGED BEYOND LIMITS #2 ENG. GROUNDED - YES. REMOVED & REPLACE HARNESS MW0235 PER B737-800 AMM TASKS 73-21-06-000-803-F00 + 73-21-06-400-803-F00. OPS CHECK GOOD. REMOVED & REPLACED HARNESS MW0311 & J9 REF AMM TASKS 73-21-06-000-802-F00 & 73-21-06-400-802-F00. ALL APPLICABLE OPS CHECKS GOOD. A/C OKAY FOR CONTINUED SERVICE.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 40,939 hrs · 11,697 cycles

CONT CAB ZONE TEMP LIGHT ON RECALL, EXTINGUISH ON RESET. GROUNDED - YES. ON DEFERRAL.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 40,835 hrs · 11,649 cycles

BOTH HF RADIO'S WOULD TUNE ON ALL APPROPRIATE FREQUENCIES BUT NEITHER PILOT COULD TRANSMIT ON ANY HF FREQ. SELCAL WORKED NOTE NEITHER PILOT COULD WE COULD HEAR ATC AND OTHER TRAFFIC ON ALL HG FREQ'S BUT COULD NOT TRANSMIT. GROUNDED - YES. ON DEFERRAL. ATB

Part: BATTERY PACK — INOPERATIVE (CABIN) · airframe 40,779 hrs · 11,626 cycles

LEFT OVERWING AND SLIDE EXTERNAL EMERGENCY LIGHTS INOP. GROUNDED - YES. REMOVED AND REPLACED AND OP CHECKED GOOD BATTERY PACKS FOR LEFT OVERWING AND SLIDE LIGHTS IAW B737-800 AMM 33-51-06-960-805.

Part: SKIN — CRACKED · airframe 40,779 hrs · 11,626 cycles

RIGHT HORIZONTAL STABILIZER LOWER SKIN IS CRACKED AT THE I/B SIDE OF RIB STA 129.50 APPROX 9 INCHES FWD OF REAR SPAR. GROUNDED - YES. REMOVED DAMAGE AND REPAIRED RH HORIZ STAB LOWER SKIN AT STA 129.5 AT LOCATIONS APPROX 9 INCHES AND 17 INCHES FWD OF REAR SPAR THIS IS A CAT B REPAIR WITH A REPEAT INSPECTION OF 9,000 FLIGHT CYCLES AND A THRESHOLD OF 56,000 FLIGHT CYCLES IAW B737-800 SRM 55-10-012-2R-11.

Part: BAFFLE — CRACKED · airframe 40,779 hrs · 11,626 cycles

FWD CARGO COMPARTMENT BAFFLE CLIP STA 500H AFT SIDE UNDER L/H TRANSITION PANEL CRACKED. GROUNDED - YES. REMOVED AND REPLACED BAFFLE CLIP STA 500H AFT SIDE AT L/H TRANSITION PANEL IAW B737-800 SRM 51-40-02-0G-0.

Part: FLOORBEAM — CORRODED · corrosion level 2 · airframe 40,779 hrs · 11,626 cycles

AFT WET AREA FLOOR BEAM STA 986 HAS CORROSION AT RH END AROUND GIRT BAR FITTING NUTPLATE. GROUNDED - YES. PREFORMED SURFACE BLEND AND REMOVED DAMAGE ON FLOOR BEAM 986 RH FASTNER HOLE FOUND TO BE OUT OF LIMITS REPAIRED FLOOR BEAM IAW B737-800 SRM 53-70-51-2R-6W=4 O=.150 R=.075 L=4 D=.075.

Part: FLOORBEAM — CORRODED · corrosion level 2 · airframe 40,779 hrs · 11,626 cycles

AFT WET AREA FLOOR BEAM STA 986 HAS CORROSION AT LH END AROUND GIRTBAR FITTING NUTPLATE. GROUNDED - YES. PREFORMED SURFACE BLEND REMOVED CORROSION ON FLOOR BEM STA 986 LH FASTNER HOLE FOUND TO BE OUT OF LIMITS INSTALLED REPAIR PARTS RESTORED FINISH IAW B737-800 SRM 53-20-51-1A-1 SRM 53-70-51-2R-6W=3 O=.150 R=.130 L=2 D=.020.

Part: CARGO TRACK — CORRODED (AFT PIT) · corrosion level 2 · airframe 40,779 hrs · 11,626 cycles

AFT PIT RH CARGO TRACK IS CORRODED BETWEEN STA 787-807. GROUNDED - YES. REMOVED DAMAGE WITH SURFACE BLEND FOUND TO BE OUT OF LIMITS REPAIRED CARGO TRACK FROM STA 887 TO STA 767 IAW B737-800 SRM 53-00-53-2R-3W=1 O=.072 R=.059 L=2 D=.033.

Part: TRACK — CORRODED · corrosion level 2 · airframe 40,779 hrs · 11,626 cycles

AFT PIT RH CARGO TRACK IS CORRODED BETWEEN STA 787-807. GROUNDED - YES. REMOVED DAMAGE WITH SURFACE BLEND FOUND TO BE OUT OF LIMITS REPAIRED CARGO TRACK FROM STA 887 TO STA 767 IAW B737-800 SRM 53-00-53-2R-3W=1 O=.072 R=.059 L=2 D=.033.

Part: FLOOR SUPPORT — CORRODED · corrosion level 2 · airframe 40,779 hrs · 11,626 cycles

AFT WET AREA FLOOR SUPPORT STA 947 TO 947 LBL 32 IS CORRODED. GROUNDED - YES. PERFORMED SURFACE BLEND REMOVED CORROSION ON FLOOR SUPPORT AT LBL 32 STA 647-967 FOUND TO BE OUT OF LIMITS REPLACED FLOOR SUPPORT IAQW B737-800 SRM 53-70-51-1A-1, SRM 51-40-02-0G-0W=2 O=.083 R=.025 L=2 D=.058.

Part: SUPPORT — CORRODED · airframe 40,779 hrs · 11,626 cycles

R/H TRANSITION PANEL STA 500C TO 500E HAS CORROSION. GROUNDED - YES. CORROSION FOUND TO BE BEYOND LIMITS IAW B737-800 SRM 53-00-53-1A-2 FIG 103 CUTOUT DAMAGED SECTION AND PERFORMED SIDEPLATE REPAIR IAW B737-800 SRM 53-00-53-2R-5W- .4 O- .040 R- 0 L- .5 D- .040.

Part: BAFFLE — CRACKED · airframe 40,779 hrs · 11,626 cycles

BAFFLE CLIP STA 500H FWD SIDE AT L/H TRANSITION PANEL CRACKED. GROUNDED - YES. REMOVED AND REPLACED BAFFLE CLIP STA 500H FWD SIDE AT L/H TRANSITION PANEL IAW B737-900 SRM 51-40-02-0G-0.

Part: WEB — CORRODED · airframe 40,779 hrs · 11,626 cycles

AFT CARGO THRESHOLD SILL WEB IS CORRODED. GROUNDED - YES. REMOVED AND REPLACED AFT CARGO THRESHOLD SILL WEB IAW B737-800 SRM 51-40-02-0G-0, 51-40-05-0G-0.

Part: WEB — CORRODED · corrosion level 2 · airframe 40,779 hrs · 11,626 cycles

FWD CARGO THRESHOLD PAN IS CORRODED IN SEVERAL SPOTS. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS FOUND THRESHOLD WEB (PANS) OUT OF LIMITS IAW B737-800 SRM 53-30-15-1A-1. REMOVED AND REPLACED WEB IAW B737-800 SRM 51-40-02-06-0W- 1.0 O- .045 R- .039 L- 2.0 D- .006.

Part: BATTERY PACK — DISCHARGED (MAIN PASSENGER C) · airframe 40,779 hrs · 11,626 cycles

EMREGENCY LIGHTS BATTERY PACK FOR EXTERIOR FWD LH OVERWING ESCAPE LIGHT FAILS CAP CHECK. GROUNDED - YES. REMOVED AND INSTALLED SERVICEABLE BATTERY PACK OPS CHECK GOOD IAW B737-800 AMM 33-51-06-960-805 CH E 33-51-06-960-006 5J6.

Part: EXCITER — FAULTY (#1 ENGINE) · airframe 40,617 hrs · 11,586 cycles

#1 ENG HAS NO EGT RISE AFTER START LEVER TO IDLE WITH IGN R. #1 ENG STARTS OK WITH IGN L. GROUNDED - YES. REMOVED AND REPLACED MAIN IGNITER PLUG #1 ENGINE REFB737-800 AMM 74-21-02. OPS CHECK OOD. NO DEFECTS NOTED. REMOVED AND REPLACED #1 ENGINE TOP IGNITION EXCITER (RH) REF AMM 74-11-01. OPS CHECK GOOD. VERIFIED EGT RISE DURING ENGINE RUN. ETOPS GROUND VERIFICATION C/W. SCM78656.

Part: CIRCUIT BREAKER — INOPERATIVE (FLIGHT DECK) · airframe 40,497 hrs · 11,546 cycles

F/O ' 2 WINDOW HEAT INOP. GROUNDED - YES. FOUND CIRCUIT BREAKER P6-11 B8 WINDOW HEAT POWER BROKEN. REPLACED CIRCUIT BREAKER C393 P6-11 B8 PER B737-800 WDM 30-41-11-2. PERFORMED WINDOW HEAT OPERATIONAL TEST PER B737-800 AMM 30-41-00-710-801.

Part: NOT REPORTED — NOT REPORTED (NOT REPORTED) · airframe 40,484 hrs · 11,542 cycles

CAPTAIN'S SIDE MCDU WENT BLANK FOR 5-10 SECONDS DURING CRUISE AT FL 360.ALL WARNING LIGHTS ON SIDES OF KEYPAD ILLUMINATED.WHEN SCREEN CAME BACK, MCDU WENT INTO BITE TEST MODE FOR ABOUT 10 SECONDS AND RETURNED TO NORMAL OPS.NO SIGN OF FMC FAILURE. GROUNDED - YES. PERFORMED B737-800 FIM 34-61 TSK 804 FMCS MCDU 1 CYCLED AND PERFORMED FMCS BITE TEST AND NO FAULTS NOTED. PERFORMED SENSORS AND INFLT FAULT TESTS. NO FAULTS NOTED. FMCS TEST NORMAL IAW FIM 34-61 TSK 801.

Part: FMC — FAULTED (LEFT) · airframe 40,036 hrs · 11,414 cycles

BETWEEN HALLI AND HELOP WAYPOINTS AT FL350, BOTH FMCS FAILED. VTK DISPLAYED ON BOTH ND SCREENS, BOTH MAPS DISAPPEARED FROM BOTH MCDU MENU PAGES. EVERYTHING RETURNED TO NORMAL OPERATIONS AFTER APPROX. 2 MINUTES. GROUNDED - YES. BITE CHECKED BOTH FMC'S IAW FIM 34-61 TASK 801. LT FAULTED PGM FAULT. RT - NO FAULTS. PERFORMED FIM 34-61 TASK 836, NO DEFECTS NOTED. 1 EA C/B ON P6-1 OPENED, RESET FOR FIM PROCEDURE.

Part: VALVE — LEAKING (NR 2 NACELLE) · airframe 39,583 hrs · 11,289 cycles

STATIC FUEL LEAK FROM #2 ENG HPTCCV DRAIN LINE, APPROX 10 DROPS PER MIN. GROUNDED - YES. PERFORMED IDLE ENG RUN. NO LEAK FOUND FROM HPTCCV DRAIN. OK FOR SERVICE. IAW AMM 71-71-00-200-801-F00, STEP 2.A(2). REMOVED AND REPLACED #2 ENG HPTACC VALVE REF AMM 75-21-01, 5 MIN IDLE LEAK CHECK AND ACTUATORS TEST PASSED.

Part: CONTACTOR — FAULTED (E/E BAY) · airframe 39,583 hrs · 11,289 cycles

LEFT GEN DRIVE LIGHT ILLUMINATED. DISCONNECTED DRIVE IAW CHECK LIST. GROUNDED - YES. REPLACED C804 BUS TIE BREAKER 1 PER B737-800 AMM 24-21-41.

Part: IDG — FAULTED (NR 2 GENERATOR) · airframe 39,568 hrs · 11,284 cycles

AFTER ENGINE START DRIVE LIGHT ON ENG #2 ILLUMINATED ENGINE SHUT DOWN. GROUNDED - YES. PERFORMED B737-800 AMM 24-11-11-080-801 AND FOUND FILTERS CONTAMINATED. REMOVED #2 IDG REF AMM 24-11-11-000-801, REMOVED #2 ENG IDG AIR/OIL COOLER LINES REF AMM 24-11-21. FLUSHED #2 ENG IDG AIR/OIL COOLER LINES REF AMM 24-11-41. INSTALLED NEW #2 ENG IDG AIR/OIL COOLER PER AMM 24-11-21-400-801. INSTALLED NEW #2 ENGINE OIL/FUEL COOLER IAW AMM 73-11-06. INSTALLED #2 ENGINE IDG IAW AMM 24-11-11. PERFORMED #2 IDG OPS TEST REF AMM 24-11-00, NO DEFECTS NOTED. GROUND VERIFICATION SUCCESSFUL. IDG #2 LEAK CHECK ACCOMPLISHED. NO LEAKS NOTED. REF AMM TASK 24-11-21-400-801. AIR COOLER LEAK CHECK #2 IDG GOOD. NO LEAKS NOTED REF AMM TASK 24-11-11-400-801.

Part: IDG — FAULTED (NR 1 GENERATOR) · airframe 39,568 hrs · 11,284 cycles

AFTER ENGINE START, GENERATOR #1 WOULD NOT CONNECT OPENED #1 ENGINE FAN COWL TO FOM. GROUNDED - YES. REMOVED #1 IDG REF B737-800 AMM 24-11-11. REPLACED #1 IDG REF AMM 24-11-11.

Part: INDICATOR — INOPERATIVE (RT FUEL QTY) · airframe 39,538 hrs · 11,270 cycles

#2 MAIN TANK REFUELING INDICATOR POSITION DIGIT IS INOP DOES NOT SHOW 2 AT BOTTOM OF GAUGE. GROUNDED - YES. REPLACED #2 TANK REFUELING INDICATOR INSTALLATION TEST PASSES REF B737-800 AMM 28-41-61-400-801.

Part: COMPENSATOR — OUT OF LIMITS (FUEL INDICATING) · airframe 39,538 hrs · 11,270 cycles

#1 FQIS FAILS SYSTEM TEST AT 404.7 PICO FARADS, REF AMM TASK 28-41-00-730-801. COMPENSATOR, TU1, TU2, TU3 , TU7 AND TU10 ARE OUT OF ACCEPTABLE LIMITS. GROUNDED - YES. REMOVED AND REPLACED PROBES - COMPENSATOR, TU1, TU2, TU3, TU7, AND TU10 REF B737-800 AMM 28-41-21/401. #1 FQIS SYSTEM TEST NOW GOOD AT 396.4/57.81 PICO FARADS. FOR INSPECTION REQUIREMENTS, POWER DEACTIVATION, & LEAK CHECKS REF TANK ENTRY TASK CARD 78528000-LINE.

Part: PROBE — FAILED (RT WING TANK) · airframe 39,538 hrs · 11,270 cycles

WITH CENTER TANK PUMPS ON, RIGHT FUEL QUANTITY IS BEING BURNED AT ABOUT 150 LBS/HR CAUSING A FUEL IMBALANCE OF ABOUT 600 LBS. BEFORE CENTER TANK IS EMPTY. FUEL BURNS WERE NORMAL INDICATING NO LEAK. LEFT AND CENTER TANKS DID NOT SHOW A CORRESPONDING INCREASE AS THE RIGHT TANK WAS DEPLETED. GROUNDED - YES. REMOVED TANK UNITS 1,2,7,8,9,10. REPLACED #2 MAIN TANK UNITS 1,2,7,8,9,10 INSTALLATION TEST PASSES REF B737-800 AMM 28-41-21-400-801. (REF ASA LOGPAGE 60394051)

Part: WARNING MESSAGE — FALSE INDICATION (FUEL QTY) · airframe 39,532 hrs · 11,269 cycles

INITIALLY UPON LEVELING IN CRUISE FLIGHT, BOTH MAIN TANKS WERE BALANCED. AS THE FLIGHT PROGRESSED AND CONTINUING TO BURN FROM CENTER TANK, THE RIGHT MAIN TANK SLOWLY DROPPED TO 8000 LBS WHILE THE LEFT MAIN TANK INCREASED FROM 8300 LBS TO 8600 LBS. CONTINUED COMPARISON OF OUR FUEL BURN TO OUR FLIGHT PLAN INDICATED NORMAL FUEL USAGE AND ELIMINATED THE SUSPICION OF A FUEL LEAK. GROUNDED - YES. COULD NOT DUPLICATE DURING FUEL PUMP TEST REF B737-800 AMM 28-22-00-730-801. ALSO PERFORMED FQIS BITE PER AMM 28-41-00-710-801, ALL INDICATIONS NORMAL. GROUND VERIFICATION NORMAL.

Part: CONTROL PANEL — FAILED (FLIGHT DECK) · airframe 39,285 hrs · 11,188 cycles

VERTICAL SPEED WHEEL IS INOP WITH CAPTAIN FD (1) ENGAGED. OPERATES NORMAL WITH FIRST OFFICER (2) FD ENGAGED. NO OTHER ANOMALIES. GROUNDED - YES. REMOVED & REPLACED DFCS MODE CONTROL PANEL REF B737-800 AMM 22-11-34.

Part: SPEED SWITCH — INTERMITTENT · airframe 39,185 hrs · 11,155 cycles

THE VERTICAL SPEED WHEEL IS INTERMITTENT ON CONTROL PANEL. DURING CLIMB FROM FL360 TO FL370 THE WHEEL WAS UNRESPONSIVE. AFTER ESTABLISHED IN A CLIMB USING LEVEL CHANGE THE V/S MODE SELECT BUTTON WORKED TO SWITCH THE CLIMB INTO V/S MODE BUT THE WHEEL WOULD NOT CHANGE THE RATE. OPERATED NORMALLY LEAVING CRUISE ALTITUDE FOR FINAL DECENT. GROUNDED - YES. NO FAULTS ON DFCS BITE. ALL MCP TESTS PASS. REFB737-800 FIM 22-11 TASK 801 AND B737-800 AMM 22-00-01.

Part: ACTUATOR — INOPERATIVE (RAM AIR ACT PANE) · airframe 38,833 hrs · 11,054 cycles

L/H PACK RAM AIR DOOR FULL CLOSED ON GROUND. GROUNDED - YES. REMOVED AND REPLACED LH RAM INLET ACTUATOR IAW B737-800 AMM 21-51-21/401.

Part: PLATFORM — VIBRATES (#2 ENGINE) · airframe 38,833 hrs · 11,054 cycles

GE DIAGNOSTICS REPORTS CNR 20220803077 #2 ENGINE (S/N 961543). TREND DATA SHOWS AN INCREASE IN TAKEOFF AND CRUISE FAN VIBRATIONS AS INDICATED BY THE FRONT AND REAR VIBRATION PICKUPS. CORE VIBRATIONS HAVE BEEN STABLE DURING THE SAME TIME FRAME. -----#PRI2----- ENGINE HIGH POWER RUN REQUIRED. GROUNDED - YES. #2 ENG ENG REAR CONE AND FAN BLADE PLATFORM POST REPLACED IAW ASA TC 78472010. (REF ASA 60250841 & 60250842)

Part: SIGN — DETACHED (UNKNOWN) · airframe 38,162 hrs · 10,901 cycles

AFT RIGHT EXIT COVER LIGHT SIGN CAME OFF. GROUNDED - YES. RESECURED AFT RIGHT EXIT COVER LIGHT SIGN.

Part: FMC — INTERMITTENT (UNKNOWN) · airframe 38,039 hrs · 10,868 cycles

FMC VTK RESET IN CRUISE. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 836. NO FAULTS FOUND FMC'S RESET OPS CHEKC NORMAL.

Part: UNKNOWN — FAILED (MAIN CABIN) · airframe 37,565 hrs · 10,729 cycles

DURING PERFORMANCE OF T/C 78233001 EMERGENCY BATTERY PACK CAPACITY FUNCTIONAL CHECK- AFT L/H BANK OF INTERIOR LIGHTS AND 3 MOST AFT L/H EXTERIOR LIGHTS FAILED TO STAY ON THE REQUIRED 15 MINUTES. GROUNDED - YES. REMOVED AND REPLACED M1673, EMERGENCY LIGHT POWER SUPPLY, OPERATIONAL TEST NORMAL. REF B737-800 AMM 33-51-06-960-806.

Part: LIGHT — INSTALLED (UNKNOWN) · airframe 37,379 hrs · 10,683 cycles

AIRCRAFT AISLE LIGHTING BETWEEN SEAT 12-14 IS NOT SECURE. GROUNDED - YES. POSITIONED AND SECURED EMERGENCY LIGHTING AT ROWS 12-14 RH SIDE, REF B737-800 AMM 33-51-15.

Part: FMC — FAILED (E/E SHELF E5) · airframe 36,699 hrs · 10,506 cycles

AFTER LANDING, VTK INDICATION ON CAPTAINS ND, AND BOTH FMC CDU'S MISSING "FMC" ON THE MENU PAGE. ANOMALY IS "INTERMITTENT. GROUNDED - YES. CONFIRMED. RMVD & RPLCD L/H FMC REFB737-800 AMM 34-61-02. OPS NML PER SAME. ETOPS GND VERIFICATION TEST SUCCESSFUL.

Part: IDG — FAULTED (#2 ENGINE) · airframe 36,602 hrs · 10,481 cycles

FOLLOW-UP TO #2 IDG CONTINUED FREQUENT SERVICING. (#PRI2/ETOPS). GROUNDED - YES. PERFORMED IDG UNSCHEDULED REMOVAL FOR CAUSE REF B737-800 AMM 24-11-11. NO CONTAMINATION FOUND. REMOVED AND REPLACED IDG IAW AMM 24-11-11. NO DEFECTS NOTED. NO LEAKS FOUND. PERFORMED IDG INSTALLATION TEST REF AMM TASK 71-00-00-800-811-F00, 3 AND TASK 24-11-00-700-803. TEST COMPLETED WITH NO DEFECTS. IDG SERVICED TO FULL REF AMM 12-13-21.

Part: BATTERY PACK — INOPERATIVE (FOWARD CABIN) · airframe 36,602 hrs · 10,481 cycles

REFERENCE TC 78233008 EMERGENCY LIGHTS - OPS CHECK. FOUND INOP LIGHTS AT 3AC SEAT ROW CEILING AND SEAT ROWS 8 ABC AND 12 ABC AISLE. GROUNDED - YES. REPLACED BATTERY PACK AT M2335 POWER SUPPLY ASSEMBLY, OPS CHECK GOOD. B737-800 AMM 33-51-06-960-805.

Part: BATTERY PACK — INOPERATIVE (FOWARD CABIN) · airframe 36,602 hrs · 10,481 cycles

REFERENCE TC 78233008 EMERGENCY LIGHTS -OPS CHECK, FOUND FWD OVERWING EXIT EXTERIOR EMER. LIGHT INOP. ON L/H SIDE WING. GROUNDED - YES. REMOVED/REPLACED EMERGENCY EXIT LIGHT IAW B737-800 AMM 33-51-04, NO FIX, THIS LIGHT IS IN THE GROUP OF LIGHTS THAT'S CONTROLLED BY BATTERY PARK M2335 WHICH WAS CHANGED ON LOG PAGE 60117628. THIS LIGHT NOW OPS CHECKS GOOD IAW AMM 33-51-06 -960-805 PARAGRAPH E.6.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 36,151 hrs · 10,373 cycles

COMMAND "A" DISENGAGED ON FINAL; REVERTED TO SINGLE CHANNEL. GROUNDED - YES. PERFORMED DFCS BITE IAW B737-800 AMM 22-11-00-740-806. NO FAULTS LISTED ON PREV FLT LEG FOR CHANNEL A OR B. NO A/P DISC FAULTS PRESENT. CURRENT STATUS TEST PASS. PERFORMED DFCS LAND VERIFY IAW AMM 22-1100-700-801, ALL TEST PASS. LRU REPLACEMENT TEST FOR FCC/DFCS-AT IAW AMM 22-11-33/401, NO FAULTS FOUND. A/P CHANNEL "A" CHECKS GOOD AT THIS TIME. ALSO, PERFORMED HGS OPS TEST IAW HGS 4000 SMM 34-36-00 SEC 500. TEST PASS. NO RELATED FAULTS ON RECORD FAULTS LAST 10 LEGS.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 35,864 hrs · 10,309 cycles

SAT DISAPPEARED FROM MCDU GROUNDED - YES. PULLED AND RESET CB 18.2 C-14 SAT REAPPEARED ON MCDU. SAT OPERATION RESTORED.

Part: MODULATING VALVE — OVERHEATED (LEFT ECS BAY) · airframe 34,370 hrs · 9,883 cycles

REPORTS OF CONTROL CABIN AND LEFT PACK SUPPLY TEMP GETTING HOT DURING DECENT. GROUNDED - YES. ACCOMPLISHED TSR710904. FOUND NO DEFECTS. REPLACED THE LEFT TCV AS SUGGESTED IN TSR. WORK ACCOMPLISHED IAW B737-800 AMM 21-51-10/401. SEAMC JARED NOTIFIED.

Part: TRANSCEIVER — FAULTED (HF COMMS) · airframe 34,348 hrs · 9,879 cycles

HF #1 AND #2 WILL NOT TRANSMIT NOT RECEIVE. GROUNDED - YES. FOUND NO POWER TO HF TRANSCEIVER REST BY FIM AND PERFORMED BITE PROCEDURE. REF B737-800 FIM 23-11 TASK 801 AND OPERATIONAL CHECK REF B737-800 AMM 23-11-00-710-801 HF 1 AND HF 2 OPERATIONAL TEST NORMAL.

Part: MODULATING VALVE — FAULTED (LEFT ECS BAY) · airframe 34,331 hrs · 9,875 cycles

ON LANDING CONT CAB TEMP WENT FROM 20-50+ WHILE BEING COMMANDED TO COLD. GROUNDED - YES. ACCOMPLISHED BITE TEST REF B737-800 AMM 21-61-00-700-806-002 NO FAULTS NOTED, REMOVED AND REPLACED CONT CABIN TRIM VALVE REF AMM 21-61-21 DO TO HISTORY.

Part: AUTOLAND SYS — MALFUNCTIONED · airframe 34,146 hrs · 9,824 cycles

HGS/ AUTOLAND UNSUCCESSFUL AUTOLAND DID NOT FLARE PROPERLY. FINISHED MANUALLY. GROUNDED - YES. DFCS HAVE NO FAULTS LOGGED FOR LAST FLIGHT LEG. ACCOMPLISHED LAND VERIFY TEST PER B737-800 AMM TASK 22-00-01-730-807, AUTOLAND SYS GND CHECKED SATISFACTORY. ACCOMPLISHED HGS SYS TEST PER AMM TASK 22-00-01-730-808, HGS SYS GND CHECKED SATISFACTORY.

Part: FMC — FAULTED (RIGHT) · airframe 34,114 hrs · 9,816 cycles

RIGHT FMC FAILURE OCCURRED AT CRUISE. PERFORMED FMC FAIL QRH PROCEDURE. FMC-R DID NOT RECOVER. FMC SOURCE SELECT SWITCH PLACED ON BOTH ON L. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 34-61 TASK 836, RH FMC OPS NML. FMC SOURCE SELECT SWITCHED TO NORMAL.

Part: SPACER — DEBONDED (NR 2 ENG FAN) · airframe 33,932 hrs · 9,771 cycles

PER T/C 78472010 #2 ENG. FAN BLADE LUBE SPACERS #1,7,8,10,14,18,22 AND 24 ARE DISBONDED. GROUNDED - YES. REMOVED AND REPLACED #2 ENG FAN BLADE SPACERS #1,7,8,10,14,18,22 AND 24 PER T/C 78472010.

Part: BLADE — WORN (NR 2 ENGINE) · airframe 33,932 hrs · 9,771 cycles

PER T/C 78472010 #2 ENG FAN BLADE LUBE #4 BLADE CU-NI-IN COATING MISSING BEYOND LIMITS. GROUNDED - YES. REMOVED AND REPLACED #4 FAN BLADE SET ON #2 ENGINE PER T/C 78472010.

Part: BLADE — WORN (NR 2 ENGINE) · airframe 33,932 hrs · 9,771 cycles

PER T/C 78472010 #2 ENG FAN BLADE LUBE #15 PLATFORM ELASTOMER SEAL IS WORN. GROUNDED - YES. REMOVED AND REPLACED #15 PLATFORM PER T/C 78472010.

Part: SPINNER — NICKED (#2 ENGINE) · airframe 33,932 hrs · 9,771 cycles

PER T/C 78472010 #2 ENG FAN BLADE LUBE REAR CONE HAS A NICK BETWEEN BALANCE SCREWS #20 AND 21 11747 04/26/2010. GROUNDED - YES. REMOVED REAR TAIL CONE AND INSTALLED ALL NOMINAL BALANCE WEIGHTS REF B737-800 AMM 71-00-250-802-F00. INSTALLED REAR CONE PER T/C 78472010.

Part: BLADE — WORN (NR 2 ENGINE) · airframe 33,923 hrs · 9,769 cycles

PER T/C 78472010 #2 ENG FAN BLADE LUBE #14 BLADE CU-NI-IN MISSING COATING BEYOND LIMITS. GROUNDED - YES. RMVD & REPLACED #14 FAN BLADE SET ON #2 ENG PER T/C 78472010.

Part: BLADE — WORN (NR 2 ENGINE) · airframe 33,923 hrs · 9,769 cycles

PER T/C 78472010 #2 ENG FAN BLADE LUBE #7 BLADE CU-NI-IN COATING MISSING BEYOND LIMITS. GROUNDED - YES. REMOVED AND REPLACED #7 FAN BLADE PER T/C 78472010.

Part: BLADE — DAMAGED (NR 2 ENGINE) · airframe 33,923 hrs · 9,769 cycles

PER T/C 78472010 #2 ENG FAN BLADE LUBE #24 PLATFORM AFT BUSHING SURFACE HAS GOUGE. GROUNDED - YES. REMOVED AND REPLACED #24 PLATFORM PER T/C 78472010.

Part: BULB — DETACHED (LEFT ECS BAY) · airframe 33,874 hrs · 9,757 cycles

WHILE SITTING AT GATE ON APU BLEED AIR, FLIGHT DECK TEMP GOT VERY HOT. TURNED TEMP CONTROL DOWN AND TEMP INITIALLY DIDN'T CHANGE, INDICATION STAYED VERY HOT. AFTER APPROX TWO MINUTES, TEMP RETURNED TO NORMAL. WHILE HOT, LEFT PACK SHOWED APPROX 60 DEG C. GROUNDED - YES. FOUND L/H PACK DISCHARGE TEMP BULB & BOSS DISCONNECTED FROM MIX MANIFOLD DUCT. ACCOMP EA 800-21EA-23413 TO RE-ATTACH TEMP BULB TO MIX MANIFOLD LK & OPS NORMAL. CONTROL CABIN TEMP OPS NORMAL.

Part: LINE — FAILED (NR 1 ENGINE) · airframe 33,876 hrs · 9,758 cycles

DUCT PRESSURE SPLIT BETWEEN LEFT AND RIGHT DUCT. T/O CLIMB L12, R40. FL180 L15, R40. CRUISE FL380 L17, R35. FL220 L14, R21. AIRCRAFT HAS HISTORY REF LP 60095940. GROUNDED - YES. ACCOMP ENG BLEED HEALTH CK ON #1 ENG REF B737-800 AMM 36-11-00 FOUND 450 STAT SENSE LINE BLOWN OUT. REMOVED AND REPLACED #1 ENG 450 STAT SENSE LINE LK CK GOOD REF AMM 36-11-00.

Part: RESTRAINT — WORN (AFT PYLON FAIRIN) · airframe 33,844 hrs · 9,749 cycles

AFT PYLON FAIRING O/B FWD LATERAL RESTRAINT WORN GROUNDED - YES. REMOVED AND REPLACED FITTING IAW B737-800 SOPM 20-50-11-910-801

Part: DISPLAY — MALFUNCTIONED (COCKPIT) · airframe 33,767 hrs · 9,729 cycles

CAPTAIN CDU SCREEN INTERMITTENTLY GOES BLANK. GROUNDED - YES. REMOVED AND REPLACED CAPTAIN'S CDU REF B737-800 AMM 34-61-01, OPS CHECK NORMAL PER SAME.THIS CLEARS MEL 34-36L, C/N 18045536 REMOVED SEAMC NOTIFIED "ANDY".

Part: CONTROL VALVE — FAULTED (NR 1 A/C PACK) · airframe 33,520 hrs · 9,643 cycles

AFTER LANDING NR 1 PACK LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED BITE CK OF LT PACK CONTROLLER SHOWS TCV FAULT ON THIS PACK. LT PACK LT EXTINGUISHED AFTER CONTROLLER RESET. VERIFIED LT PACK LT DOES NOT ILLUM WITH MASTER CAUTION RECALL.

Part: IDG — LEAKING (NR 2 GENERATOR) · airframe 33,130 hrs · 9,530 cycles

TECH SERVICE REQUEST. FOLLOW-UP TO NR 2 IDG FREQUENT SERVICING, ACCOMPLISH IDG LEAK CHECK. GROUNDED-YES. PERFORMED IDG LEAK CHECK USING, REF B737-800 AMM 24-11-00, PREFERRED METHOD. FOUND OIL LEAKING OUT DRAIN. REMOVED AND REPLACED NR 2 IDG, REF TO AMM 24-11-11. C/W OPERATIONAL TEST, PER AMM 24-11-00. GROUND VERIFICATION TEST GOOD.

Part: LAMP — INOPERATIVE (EXERIOR LIGHT) · airframe 32,809 hrs · 9,457 cycles

EMERGENCY SLIDE/OVERWING EXIT LIGHT INOPERABLE ON LT SIDE, LOWER LIGHT AFT OF MAIN LANDING GEAR. GROUNDED-YES. RELAMPED EMERGENCY EXIT LIGHT ON LT SIDE, PER B737-800 AMM 33-51-04. OPERATIONS OK.

Part: SERVO — LEAKING (NR 2 FUEL HEAT) · airframe 32,582 hrs · 9,395 cycles

NR 2 ENGINE FUEL HEAT MODULE ABOVE HMU HAS FUEL LEAK FROM HOUSING CAP. GROUNDED-YES. REMOVED LEAKY SERVO FUEL HEATER, REF B737-800 AMM TASK 73-11-07-000-801-F00. REPLACED NR 2 ENGINE FUEL HEATER SERVO, REF AMM TASK 73-11-07-400-801-F00. STOWED NR 2 ENGINE FIRE HANDLE. PERFORMED IDLE POWER LEAK CHECK, REF AMM 71-00-00-700-801-F00 AND NO LEAKS NOTED.

Part: ANTENNA — FAILED (WX RADAR SYS) · airframe 32,499 hrs · 9,366 cycles

PWS FAIL AND WXR FAIL. GROUNDED-YES. REMOVED AND REPLACED WXR ANTENNA DRIVE UNIT. WXR SYSTEM OPERATIONAL TEST ACCOMPLISHED WITH NO DEFECTS NOTED, REF B737-800 AMM 34-43-11. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

Part: VALVE — MALFUNCTIONED (CABIN TEMP) · airframe 32,447 hrs · 9,350 cycles

AIR COND CONT CABIN ZONE TEMPERATURE LIGHT ON RECALL AFTER START. GROUNDED-YES. BITE CHECKED BOTH ZTC'S, REF B737-800 FIM 21-62 TASK 801. NR 1, NO FAULTS. NR 2 FAULTS CONT CABIN TRIM VALVE. PERFORMED B737-800 FIM 21-62 TASK 832, FAULT RESETS. RAN VERIFY TEST NUMEROUS TIMES W/NO DEFECTS. ETOPS GROUND VERIFICATION TEST PASS.

Part: PRESSURE SWITCH — FAULTY (FUEL BOOST PUMP) · airframe 32,405 hrs · 9,336 cycles

SHORTLY AFTER LEVEL OFF AT FL 400, WITH 1100 BLS OF FUEL IN CENTER TANK. CENTER FUEL PUMP SWITCHES WERE PLACED ON AND LOW PRESSURE LIGHTS ILLUMINATED. AFTER CYCLING BOTH CTR PUMP SWITCHES 3-4 TIMES THE LEFT LOW PRESSURE LIGHT EXTINGUISHED, BUT THE RIGHT LOW PRESSURE LIGHT REMAINED ILLUMINATED. GROUNDED-YES. REMOVED AND REPLACED RT CENTER FUEL BOOST PUMP PRESSURE SWITCH, REF B737-800 AMM 28-42-11. ABLE TO DUPLICATED FAULT. INSPECTED AND FOUND RT SIDE PRESSURE SWITCH FAULTY. TRANSFERRED FUEL FROM CENTER TANK TO BOTH MAINS AND MAINS TO CENTER TANK. PERFORMED FUEL BOOST PUMP PRESS SWITCH OPS TEST, REF B737-800 AMM 24-42-11. SYSTEM OPS TEST NORMAL.

Part: START VALVE — INOPERATIVE (NR 1 ENGINE) · airframe 32,360 hrs · 9,318 cycles

ENGINE NR 1 START VALVE STUCK INTERMITTENTLY DURING ENGINE START. GOOD APU PRESSURE ENGINE START SWITCH, GRD. NO START VALVE OPEN LIGHT AND NO N2 ROTATION, MADE 3 ATTEMPTS TO START (UNSUCCESSFUL). UNDER CONSULTATION WITH ALASKA MX CONTROL, START VALVE OPEN LIGHT CAME ON 4TH ATTEMPT AFTER 18 SECONDS WITH NR 1 ENGINE START SWITCH IN GRD, GOOD START. GROUNDED-YES. ACCOMPLISHED B737-800 FIM 80-07 TASK 804 VOLTAGE GOOD. REMOVED & REPLACED NR 1 ENG START VALVE, PER SAME. OPERATIONS & LEAK CHECK GOOD.

Part: CONNECTOR — NOT SEATED (APU) · airframe 31,977 hrs · 9,177 cycles

APU FAILED TO START AFTER LANDING FAULT LIGHT ILLUMINATED FOR 4 MINUTES AND THEN WENT OUT. RAN QRH AND DID NOT TRY A RESTART. GROUNDED - YES. INITIAL EVAL OF APU CONFIRMED NO START. ACCOMPLISHED B737-800 FIM 49-32-TASK 805. ALL RING OUTS GOOD. DURING GVI OF APU HARNESS, FOUND P-22 AT FUEL CONTROL LOOSE, RESEATED CONN. P-22. CHECKED AND SECURED ALL CONNECTORS ON APU. GVI OF HARNESS SHOWED NO DISCREPANCIES. REPAIR CONFIRMATION START ATTEMPT GOOD. STARTED APU 4 MORE TIMES WITH NO DISCREPANCIES. SYS OPS NML. REF B737-800 FIM 49-32 TASK 805, WDM 49-62-11.

Part: ACTUATOR — FAILED (RT RAM AIR INLET) · airframe 31,831 hrs · 9,095 cycles

RH PACK LITE ILLUMINATED AFTER START ON M/C RECALL PACK LITE EXTINGUISHES ON RESET. GROUNDED - YES. BITE OF R/H PACK TEMP CONTROLLER SHOWED RAM AIR ACT FAIL. REF B737-800 FIM 21-62 TASK 836. REQUIRES REPLACEMENT OF R/H RAM AIR INLET ACTUATOR. REMOVED AND REPLACED THE RT RAM AIR INLET ACTUATOR, IAW AMM 21-51-21.

Part: WARNING LIGHT — FALSE ACTIVATION (COCKPIT TEMP) · airframe 31,805 hrs · 9,083 cycles

CONT CABIN ZONE TEMP LIGHT ON RECALL. GROUNDED - YES. PERFORMED PACK\ZONE TEMP CONT BITE TEST REF B737-800 AMM 21-61-00, IN FLT FAULT SHOWS FLT DECK TRIM VALVE, WAS ABLE TO VERIFY FAULT. RESET SYS, NO OTHER FAULTS NOTED AT THIS TIME.

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 31,800 hrs · 9,080 cycles

EMERG LIGHTS ON RH SIDE OF A/C ARE ALL INOP. GROUNDED - YES. REMOVED & REPLACED EMERG LIGHTS BATTERY PACKS LOCATION M1671, M1672 & M1676. OPS CHECK GOOD.

Part: ACM — FAILED (AC BAY) · airframe 31,703 hrs · 9,048 cycles

RIGHT PACK TRIP OFF CAUTION MESSAGE TRIED TO RESET PER QRH AND FAILED AGAIN. PACK TEMP WAS 58 DEGREES DURING FAILURE DURING CLIMB OUT. GROUNDED - YES. FOUND ACM TO BE GRINDING. REPLACED ACM REF B737-800 AMM 21-51-04. PERFORMED PACK/ZONE BITE TEST - RAM SENSOR DISPLAYS FAULT ON BITE BOX. RIGHT PACK REMAINS ON MEL 21-1F. ACCOMPLISHED B737-800 FIM 21-62 TASK 820 RESET PACK TEMP CONTROLLER. RAN PACKS FOR 2 HRS AT VARIOUS SETTINGS. PERFORMED MULTIPLE BITE TESTS IN PERIOD & NO FAULTS NOTED. ALL OPS NORMAL. SUSPECT FAULT WAS SET WHILE ACCOMPLISHING TSR7804970. THIS CLEARS MEL 21-1F.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 31,669 hrs · 9,038 cycles

CLIMBING THROUGH 14,00 RT PACK LIGHT ILLUMINATED. RT PACK LIGHT ON OVERHEAD PANEL STAYED ILLUMINATED AFTER RESETTING MASTER CAUTION. PRESSED TRIP RESET BUTTON ON OVERHEAD PANEL PER QRH AND RT PACK LIGHT RE-ILLUMINATED 10 SECOND LATER. RAN QRH. ISOLATED ISOLATION VALVE, CLOSED RIGHT PACK SWITCH OFF, SINGLE PACK OPS REMAINDER OF FLIGHT. GROUNDED - YES. PERFORMED B737-800 FIM 21-53 TASK 818, RAN R/H PACK FOR 30 MINS AND PERFORMED BITE TEST WITH NO DEFECT NOTED. THIS CLEARS MEL 21-1F.

Part: TRANSCEIVER — FAULTY (WEATHER RADAR) · airframe 31,669 hrs · 9,038 cycles

WEATHER RADAR UNRELIABLE AT CRUISE IN AUTO MODE. RADAR CHECKED GOOD ON GROUND IN KSEA. IN AUTO MODE, SHOWED HEAVY RADAR RETURNS 80NM - 200NM AND NEVER DECLUTTERED. NO HEAVY PRECIP OR STORMS THERE. WEATHER RADAR WAS DEPENDABLE AND ACCURATE IN MANUAL MODE. CHECKED GAIN AND GROUND CLUTTER IN MANUAL MODE, OPS CK GOOD. AUTO UNRELIABLE. GROUNDED - YES. SUSPECT RECENTLY INSTALLED XCVR DUE TO TSR OF A PWS FAULT. THIS IS A DIFFERENT FAULT & XCVR S/N 44X8H2 WAS A COULD NOT DUPLICATE AT VENDOR. REPLACED SAME. OPS CHECK & FUNCT CHECK SAME GOOD. REF B737-800 AMM 34-43-41. CLEARED MEL 34-15H.

Part: SWITCH — FAULTY (RT ACM) · airframe 31,648 hrs · 9,029 cycles

CLIMBING OUT OF 14000 FT THE R/H PACK LIGHT ILLUMINATED, WE FOLLOWED THE QRH PROC AND THE PACK LIGHT TURNED OFF. 3 MIN LATER THE PACK LIGHT ILLUMINATED, WE FOLLOWED THE QRH PROC AND THE PACK LIGHT DID NOT TURN OFF. WE CONTINUED THE FLIGHT WITH ONE PACK. GROUNDED - YES. BORESCOPED THE ACM WITH NO FAULTS FOUND. ACCOMPLISHED PZTC BITE WITH NO FAULTS AND VERIFIED RAM ACTUATOR WAS ACTUATING CORRECTLY REF B737-800 FIM 21-62- TASK 801. REMOVED AND REPLACED R/H COMPRESSOR DISCHARGE OVERHEAT SWITCH (S5) REF B737-800 AMM 21-51-40. REMOVED AND REPLACED R/H ACM OVERHEAT 210 DEGREES THERMAL SWITCH (S939) REF AMM 21-51-41. REMOVED AND REPLACED R/H PACK DISCHARGE OVERHEAT SWITCH (S935) REF AMM 21-51-42. OPS CHECKS GOOD. GROUND VERIFICATION TEST SUCCESSFUL.

Part: ACTUATOR — FAILED (RAM AIR INLET) · airframe 31,631 hrs · 9,023 cycles

EXACT SAME REPEAT WRITE UP ON RIGHT PACK LIGHT. PER QRH CLOSED ISOLATION VALVE, TURNED OFF RIGHT PACK. GROUNDED - YES. CONFIRMED FAULT, NO. 2 PACK/ZONE TEMP CONTROLLER BITE SHOWS HARD FAIL R/H RAM AIR INLET ACTUATOR FAIL. NO. 1 CONTROLLER SHOWS NO FAULTS. REMOVED & REPLACED R/H RAM AIR INLET ACTUATOR REF B737-800 AMM 21-51-21. ALSO, REMOVED & REPLACED TCV 2 (V141) AS PRECAUTIONARY REF AMM 21-51-10. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST REF AMM 21-61-00-700-806-002.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 31,618 hrs · 9,019 cycles

DURING CLIMBOUT THROUGH 16,000 RT PACK CAUTION LIGHT ILLUMINATED. ACCOMPLISHED QRH PROCEDURE & PACK LIGHT WENT OUT BUT REILLUMINATED AFTER 1 MIN. REACCOMPLISHED QRH PROCEDURE WITH HIGHER TEMP INCREASE WITH SAME RESULT. TURNED RT PACK OFF & CLOSED ISOLATION VALVE WITH RT PACK TEMP AT 60 DEG. C. TEMP COOLED AT CRUISE, PACK RESET , WITH RT PACK OFF. GROUNDED - YES. RT PACK INSPECTED - NO DEFEECTS - ZTC'S NO FAULTS - RAN RT PACK OP'S NORMAL.

Part: TRANSCEIVER — INOPERATIVE (HF COMM) · airframe 31,590 hrs · 9,010 cycles

UNABLE TO TRANSMIT ON #2 HF. ABLE TO HEAR AND RECEIVE SELCAL ON HF #2. GROUNDED - YES. REPLACED #2 TRANSCEIVER & COUPLER REF B737-800 AMM 23-11-61 & AMM 23-11-21. #2 HF RADIO OPS CHECK GOOD IAW AMM 23-11-21 AND 23-11-61 THIS CLEARS MEL 23-11A.

Part: UNKNOWN — MALFUNCTIONED (HF COMM) · airframe 31,575 hrs · 9,007 cycles

AFTER TAKE OFF, UNABLE TO TRANSMIT ON HF # 2 COULD HEAR AND RECEIVE SELCAL ON HF # 2. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 23-11 TASK 806 # 2 HF OPS CHK NORMAL, SUCCESSFUL GROUND VERIFICATION ACCOMPLISHED WITH SAN FRANCISCO.

Part: WARNING LIGHT — FALSE ACTIVATION (WX RADAR ANTENNA) · airframe 31,441 hrs · 8,973 cycles

PWS FAIL, WXR FAIL ANT AMBER ILLUMINATED WHILE TRYING TO USE WEATHER RADAR. GROUNDED - YES. ACCOMPLISHED WXR BITE TEST, NO FAULTS. REF B737-800 FIM 34-43 TASK 801. ACCOMPLISHED WXR SYSTEM TEST, TEST PASSED. REF B737-800 AMM 34-43-00.

Part: WARNING LIGHT — FALSE ACTIVATION (COCKPIT TEMP) · airframe 31,403 hrs · 8,963 cycles

CONTROL CABIN TEMP, ILLUMINATED ON MASTER CAUTION RECALL, ABLE TO RESET ON MASTER CAUTION RESET. GROUNDED - YES. ON INITIAL EVALUATION FOUND THE RED FAULT LIGHT ON THE RH PACK ZONE/TEMP CONTROLLER FOR FLIGHT DECK TRIM VALVE. ACCOMPLISHED THE RESET PROCEDURE AND THE GREEN GO LIGHT CAME ON. NO FURTHER ACTION NECESSARY. ETOPS GROUND VERIFICATION TEST SUCCESSFUL, REF B737-800 FIM 21-62 TASK 832.

Part: PRESSURE SWITCH — FAILED (NR 1 ENG FUEL) · airframe 31,155 hrs · 8,911 cycles

AFTER LANDING, NR 1 ENGINE FUEL FILTER BYPASS LIGHT ILLUMINATED AND STAYED ON UNTIL SHUTDOWN. GROUNDED - YES. REMOVED AND REPLACED THE NR 1 ENGINE FUEL DIFF PRESSURE SWITCH IAW AMM 73-34-01. OPS AND LEAK CHECKED NORMAL. NO FUEL FILTER BYPASS LIGHT ILLUMINATES DURING ENGINE RUN. GROUND VERIFICATION CHECK NORMAL. REF AMM 71-00-00. RECHECK NR 1 ENGINE FAULTS SHOW NO FAULTS ON LEG 0.

Part: CIRCUIT BREAKER — TRIPPED (COCKPIT) · airframe 31,018 hrs · 8,878 cycles

AFTER PUSH BACK AND ENGINE START, WE TURNED ON THE PROBE HEAT F/O PITOT LIGHT CAME ON. RAN QRH. LOOKED AT C/B PANEL AND F/O PITOT CIRCUIT BREAKER HAD POPPED. GROUNDED - YES. RESET F/O PITOT C/B OPS GOOD, RUN FIM 30-31 TASK 803 OK FOR SERVICE.

Part: WIRE HARNESS — DAMAGED (NR 2 ENGINE) · airframe 30,853 hrs · 8,839 cycles

NR 2 ENGINE J9 HARNESS NYLON OUTER SHEATHING TORN NEAR DP0905, APPROX 2 INCHES IN LENGTH. ACFT GROUNDED. OPEN

Part: DUCT — DAMAGED (ANTI ICE SYSTEM) · airframe 30,761 hrs · 8,819 cycles

#1 ENG TAI DUCTING INSULATION DAMAGED. GROUNDED - YES. REPLACED TAI DUCTING. RAF POWERPLANT BUILDUP 71-00-02 OPS AND LEAK CHECK GOOD. REF B737-800 AMM 30-21-11.

Part: ACTUATOR — INOPERATIVE (LT RAM AIR INLET) · airframe 30,675 hrs · 8,796 cycles

LH RAM AIR DOOR ACTUATOR INOP. GROUNDED - YES. REMOVED & REPLACED LH PACK RAM AIR ACTUATOR REF AMM 21-51-21-400-801. PERFORMED TESTS IAW AMM 21-51-21-400-801, OPS CHECK GOOD. ETOPS GROUND FUNCTIONAL TEST IS GOOD IAW AMM 12-51-21-400-801 PARAGRAPH K.

Part: ACTUATOR — OUT OF LIMITS (NR 2 VSV) · airframe 30,415 hrs · 8,724 cycles

WHILE ACCOMPLISHING EEC BITE TEST, DISPLAYED #2 ENG MSG NBR: 75-10392 "THE VSV POSITION SIGNAL IS OUT OF RANGE" LONG TIME FAULT, DEFERRED PER T/C 78273000. GROUNDED - YES. DEFERRED PER T/C 78273000, DEFERRED FOR 450 FLT HOURS. TROUBLE SHOOTING ON 12/23/2019 PER W/O: 1014807 TASKCARD: N/R-00001 FAULT 75-10392 SHOWS ON ALL FLIGHT LEGS AND WHEN EEC TEST DONE FOR #2 ENGINE. VSV CHANNEL A (RH ACTUATOR) PINS 2 AND 3 HAVE NO CONTINUITY, DP902 TO DP909 HAS CONTINUITY. ACCOMPLISHED EEC AND ACTUATORS TESTS, MESSAGE 75-10392 REMAINS ACTIVE. REF B737-800 FIM 75-31 TASK 803. REMOVED AND REPLACED #2 ENG RH VSV ACTUATOR REF B737-800 AMM TASK 75-31-01/401. COMPLETED VSV ACTUATOR LEAK TEST REF AMM 75-31-01-790-801 NO LEAKS NOTED. THIS CLEARS PLT DEFERRAL. ALL TEST PASS.

Part: WARNING MESSAGE — FALSE ACTIVATION (RT A/C PACK) · airframe 30,393 hrs · 8,716 cycles

RIGHT PACK LIGHT ILLUMINATED ON CLIMB OUT. RAN QRH AND THE TRIP RESET INITIALLY EXTINGUISHED LIGHT. THE PACK LIGHT CAME BACK ON WITHIN 5 MIN AFTER INITIAL RESET. ACCOMPLISHED QRH PROCEDURES FOR "PACK LIGHT STAYS ILLUMINATED". ATTEMPTED A SECOND RESET 15-20 MIN AFTER INITIAL RESET - UNSUCCESSFUL RESET. AIRCRAFT PRESSURIZED NORMALLY AT FL 310. GROUNDED - YES. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE REF AMM 21-61-00-700-806-002, NO FAULTS. GVI TCV2 (V141) NO FAULTS NOTED. INSPECTED RT RAM AIR INLET FOR ANY BLOCKAGE, NONE FOUND. ALSO, INSPECTED RT TURBINE INLET OVHT SW, RT COMPRESSOR DISCHARGE OVHT SW, NO FAULTS FOUND. RAN BOTH RT & LT PACKS FOR 30 MINUTES, CYCLED FLAPS & VERIFIED ACM OUTLET COLD. ACCOMPLISHED RT PACK FLOW CONTROL VALVE OPERATIONAL TEST REF AMM 21-51-00-700-802, OPS CK NML.

Part: TRANSCEIVER — FAILED (NR 2 HF COMMS) · airframe 30,375 hrs · 8,709 cycles

#2 HF RADIO WILL NOT TRANSMIT OR RECEIVE. GROUNDED - YES. REMOVED #2 HF XVR PER B737-800 AMM 12-11-21-000-801. INSTALLED #2 HF XVR PER AMM 12-1-21-400-801. PERFORMED INSTALLATION TEST OF #2 HF XVR PER SAME. TEST IS GOOD. PERFORMED HF SYSTEM TEST PER AMM 23-11-000-730-801.

Part: TRANSCEIVER — MALFUNCTIONED (HF NR 2) · airframe 30,175 hrs · 8,651 cycles

#2 HF RADIO INOP AFTER TAKEOFF. NO SIDE TONE AND CANNOT TRANSMIT NOR RECEIVE ON ANY FREQ. WOULD NOT TRANSMIT FROM CAPT'S AND F/O PUSH TO TALK SWITCHES AND HAND MICS. GROUNDED - YES. RESET #2 HF SYSTEM BITE AND OPS CK OK REF B737-800 AMM 23-11-00.ALSO COMMUNICATION TEST WITH SFO OCEANIC OK NORMAL. A/C OK FOR SERVICE.

Part: TRANSCEIVER — INOPERATIVE (NR HF COMMS) · airframe 30,186 hrs · 8,653 cycles

#2 HF RADIO INOP. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 23-11 TASK 806 COULD NOT CONTACT SFO-AIINC. REMOVED #2 HF XVR AND PLACED ON SOS PER B737-800 AMM 23-11-21-000-801. INSTALLED #2 HF XVR PER AMM 23-11-21-400-801. PERFORMED INSTALLATION TEST PER AMM SUBTASK 23-11-21-800-001 TEST IS GOOD. PERFORMED HF #2 SYSTEM TEST PER AMM 23-11-00-730-801 #2 HF SYSTEM TEST IS GOOD. A/C RELEASED FROM MEL 23-11A.

Part: HEATER — INOPERATIVE (PITOT HEAD) · airframe 30,166 hrs · 8,648 cycles

L ELEV PITOT LIGHT ILLUMINATED WHILE CHECKING FLIGHT CONTROLS ON TAXI OUT. GROUNDED - YES. REFERENCE B737-800 AMM 27-31-94-000-801/400-801. REMOVED AND REPLACED LEFT HAND ELEVATOR PITOT PROBE. PERFORMED ELEVATOR PITOT LEAK TEST REFERENCE AMM 27-31-17 TEST PASSES. PERFORMED HEATER TEST PER AMM 30-31-00 TEST NORMAL.

Part: SMOKE DETECTOR — FAILED (CARGO BAY) · airframe 29,218 hrs · 8,387 cycles

CARGO FIRE AFT RED LIGHT DOES NOT ILLUMINATE WHEN TEST BUTTON PRESSED. GROUNDED - YES. VERIFIED DISCREP. FOUND AFT CARGO PIT DETECTOR INOP. REMOVED/REPLACED DETECTOR B2 REF AMM 26-16-01. OPS NML REF. SAME.

Part: UNKNOWN — MALFUNCTIONED (COCKPIT) · airframe 29,111 hrs · 8,358 cycles

ON THE GROUND F/O'S NAV DISPLAY SHOWS VTK ALONG WITH BOTH FMC P/RST. CYCLED ON AND OFF SEVERAL TIMES. GROUNDED - YES. PERFORMED FIM TASK 34-61 AND SUSPECT A NUISANCE ERROR AS PER AMM 34-61-00-860-801, CYCLED POWER PER AMM 20-60-99-760-001, NO FAULTS NOTED A/C IS OK FOR SERVICE.

Part: SENSOR — FAULTY (WINDOW HEAT) · airframe 29,116 hrs · 8,360 cycles

CAPTAIN SIDE WINDOW OVERHEAT LIGHT ILLUMINATED DURING TAXI IN TO GATE. GROUNDED - YES. BITE TEST WHC SHOWS WINDOW SENSOR FAULT. ACCOMPLISHED CONTROL CABIN WINDOW TEMPERATURE SENSOR REPAIRS - CONNECT SPARE SENSOR REF AMM 30-41-00-420-801, OPS CK NML.

Part: WARNING LIGHT — FALSE ACTIVATION (WINDOW HEAT) · airframe 28,974 hrs · 8,318 cycles

WINDOW OVERHEAT LIGHT ILLUMINATED INFLIGHT AT 8000FT. ACCOMPLISHED CHECK LIST AND THE LIGHT STAYED EXTINGUISHED. GROUNDED - YES. CURRENTLY GROUND FUNCTIONAL TEST GOOD IAW B737-800 AMM 30-41-00-710-801.

Part: SEAL — LEAKING (SLIDING WINDOW) · airframe 28,811 hrs · 8,273 cycles

CAPT SIDE SLIDING WINDOW MAKING LOUD SQUEAL AFTER TAKEOFF PRESSURIZATION NORMAL. GROUNDED - YES. DIVERSION TIME: 15 MINUTES. PRESSURIZED A/C AND VERIFIED LOUD SQUEAL FROM CAPT SIDE WINDOW. REMOVED AND REPLACED CAPT SLIDING WINDOW PER B737-800 AMM 56-12-11-000-801 AND 56-12-11-000-801 OPS CKECK NORMAL.

Part: UNKNOWN — MALFUNCTIONED (APU) · airframe 28,534 hrs · 8,197 cycles

APU WILL NOT START / NO ROTATION. GROUNDED - YES. T/S APU WOULD NOT START 4 TIMES AND THREW MAINT MESSAGE 49-41012 NO APU ROTATION SHUTDOWN EACH TIME SHUTDOWN & RESET POWER TO A/C. PERFORMED FIM 49-40 TASK 803, APU STARTS AND OPERATES NRML ON ALL SUBSEQUENT ATTEMPTS WITH NO FAILURES OR FAULTS.

Part: UNKNOWN — MALFUNCTIONED (COCKPIT) · airframe 28,450 hrs · 8,178 cycles

TAXI-IN LT FMC FAILED WITH VTK DISPLAYED CYCLING ON /OFF. GROUNDED - YES. COMPLIED WITH FMC RESET PER FIM 34-61 TASK 836 OPS CHECK NORMAL.

Part: WARNING MESSAGE — FALSE ACTIVATION (NR 1 HF) · airframe 28,060 hrs · 8,083 cycles

#1 HF SHOWS FAIL. GROUNDED - YES. CYCLED POWER CLEAR FAULT, PERFORMED OPS CHECK REF B737-800 AMM 32-12-41 OPS CHECK NORMAL.

Part: APU — SHUTDOWN (APU COMPARTMENT) · airframe 27,891 hrs · 8,040 cycles

CSS FAILED. FAULT LIGHT AND 100 EGT DURING ATTEMPTED START AT FL360. MACH .79 TEMP -60 C. GROUNDED - YES. APU BITE REPORTED FC 49-31016. PERFORMED B737-800 FIM 49-30 TASK 803. FAULT CLEARED & DETERMINED TO BE INTERMITTENT FAULT THAT WAS CORRECTED. PERFORMED MULTIPLE APU STARTS WITH NO FURTHER ANOMOLIES PER FIM 49-30 TASK 803, MEL 49-99A REQUIRED. CHECKED & RELEASED IAW MEL 49-99A. REMOVED AND REPLACED APU ASSY PER ASA TASK CARD 78349010. OPS CHECK GOOD REF B737-800 AMM 49-11-00.

Part: TRANSCEIVER — FAILED (HF COMM) · airframe 27,729 hrs · 7,997 cycles

NR 1 HF RADIO DISPLAYS "FAIL" WHEN SELECTED. GROUNDED - YES. BITE OF NR 1 TRANSCEIVER SHOWS RED LRU FAULT LIGHT. REPLACED NR 1 HF TRANSCEIVER REF AMM 23-11-21-400-801. GROUND VERIFICATION TEST NORMAL.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 27,719 hrs · 7,995 cycles

FD FLAG ON CAPTS SIDE ILLUMINATED. GROUNDED - YES. PERFORMED A/C POWER DOWN AND POWER UP REF AMM 24-22-00-860-812. FLIGHT DIRECTOR OPS CHECKS NORMAL REF AMM 22-11-00.

Part: IDG — LEAKING (NR 1 ENGINE) · airframe 27,687 hrs · 7,982 cycles

FOLLOW-UP TO NR 1 IDG CONTINUED FREQUENT SERVICING. GROUNDED - YES. REMOVED & REPLACED NR 1 IDG REF. AMM 24-11-11-000-801, 24-11-11-400-801 OPS & LEAK CHECKED GOOD.

Part: CONTROL VALVE — FAILED (LT A/C PACK) · airframe 27,624 hrs · 7,965 cycles

CONT CAB ZONE TEMP LIGHT ON RECALL. GROUNDED - YES. ZONE TEMP CONTROLLER BITE SHOWS HISTORY OF CONT CAB TRIM VALVE. REMOVED AND REPLACED CONT CABIN TRIM VALVE REF B737-800 AMM 21-61-21. OPERATIONAL CHECK AND LEAK CHECK GOOD. CONTROLLER BITE GOOD REF AMM 21-51-00-700-083.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 27,547 hrs · 7,942 cycles

CONTROL ZONE TEMP OFF LIGHT ON. GOES OUT WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED A/C TEMP CONTROLLER BITE CHECK PER CONTROLLER PLACARD, ONE FAULT, NR 2 TEMP CONTROLLER FLT DECK TRIM VLV. RAN CONTROLLER BITE & RESET, NO FAULTS NOTED. RAN NR 2 CONTROLLER BITE 2 MORE TIMES, NO FAULTS NOTED. NO HISTORY LAST 30 DAYS.

Part: IGNITER — INTERMITTENT (NR 1 ENGINE) · airframe 27,463 hrs · 7,917 cycles

NR 1 ENGINE WOULD NOT START DURING PUSH-BACK WITH IGN RIGHT SELECTED FUEL FLOW BUT NO LIGHT OFF. NR 2 ENGINE STARTED NORMALLY. GROUNDED - YES. PERFORMED FIM 74-21 TASK 801 OF THE IGNITION R FAILED. PERFORMED IGNITION SYSTEM AUDIBLE TEST OF THE NR 1 ENGINE PER AMM 74-00-00. LEFT AND RIGHT IGNITER TEST PASSED, NO FAULTS FOUND. REMOVED RIGHT IGNITER PLUGS AND EXAMINED RIGHT PLUGS PER AMM 74-21-01. NO DEFECTS FOUND. EXAMINED RIGHT IGNITION LEAD AND POLISHED IGNITER PLUG CONTACTS PER AMM 74-21-01. NO DEFECTS FOUND. AS PER CAUTION INSTALLED NEW RIGHT IGNITER PLUG PER AMM 74-21-02, NEW RIGHT IGNITER PLUG LEAD PER AMM 49-41-52, AND NEW RIGHT IGNITION EXCITER PER AMM 74-11-01 . CONDUCTED ANOTHER IGNITION SYSTEM AUDIBLE TEST OF NR 1 ENGINE PER AMM 74-00-00. LEFT AND RIGHT IGNITER TEST PASSED, NO FAULT FOUND. RAN NR 1 ENGINE TO TEST RIGHT IGNITER PER AMM 74-00-00. ENGINE STARTS AS NORMAL.

Part: TANK UNIT — OUT OF LIMITS (FUEL TANK) · airframe 27,311 hrs · 7,877 cycles

AFTER FUELING, LEFT TANK INDICATED 8.6 AND RIGHT INDICATED 8.6, CENTER INDICATED 7200. AFTER TAKEOFF AND LEVEL OFF AT CRUISE, LEFT TANK INDICATED 8.14 AND THE RIGHT TANK INDICATED 8.69. THE IMBALANCE FLUCTUATED +/- 800 LBS TO 400 LBS. TOTAL FUEL BURNS MATCHED FLIGHT PLAN. CROSSFEED VALVE OPERATED NORMALLY. GROUNDED - YES. PERFORMED TANK AND COMPENSATOR UNITS TEST REF AMM 28-41-21-710-801. FOUND PROBES F4L, F5L, F6L, F8L AND F9L OUT OF CAPACITANCE LIMITS. REF AMM 28-41-21, REMOVED AND REPLACED NR 1 MAIN F4L, F5L, F6L, F8L AND F9L TANK UNITS. CAPACITANCE VALUES WITHIN LIMITS. PERFORMED GROUND VERIFICATION TEST REF AMM 28-41-00. CHECKS GOOD.

Part: IGNITER — FAILED (NR 1 ENGINE) · airframe 27,289 hrs · 7,873 cycles

NR 1 ENGINE - NO LIGHT OFF - IGN R SELECTED. IT STARTED NORMALLY WITH IGN L SELECTED. GROUNDED - YES. REMOVED AND REPLACED RIGHT HAND ENG IGNITER PLUG ON ENG NR 1 REF AMM 74-21-02. PERFORMED AUDIBLE TEST FOR BOTH R AND L IGNITERS REF AMM 74-00-00. OPS CHK GOOD.

Part: OIL COOLER — LEAKING (NR 1 ENGINE) · airframe 26,926 hrs · 7,783 cycles

FOLLOW-UP TO NR 1 IDG FREQUENT SERVICING. GROUNDED - YES. FOUND EVIDENCE OF THE IDG AIR/OIL COOLER LEAKING. REPLACED THE IDG AIR/OIL COOLER REF AMM 24-11-21. LEAK CHECK GOOD. COMPLETED STEP 1 IDG STATIC LEAK CHECK NO OTHER LEAKS NOTED.

Part: WARNING SYSTEM — FALSE ACTIVATION (COCKPIT) · airframe 26,816 hrs · 7,759 cycles

RIGHT PACK ILLUMINATED ON RECALL. EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. T/S BOTH TEMP CONTROLLERS. BITE TEST GOOD REF AMM 21-51-00-700-803. NO FAULTS.

Part: CIRCUIT BREAKER — OPEN (COCKPIT) · airframe 26,411 hrs · 7,653 cycles

FD FLAG ON CAPTAINS PFD. SPEED TRIM FAIL AND MACH TRIM FAIL ANNUNCIATORS ILLUMINATE ON MASTER RECALL. GROUNDED - YES. FOUND C/B WARN LITE OPEN. RESET C/B IAW AMM 20-60-01-860-801 ALL SYS RETURN TO NORMAL.

Part: IDG — LEAKING (NR 1 ENGINE) · airframe 26,003 hrs · 7,548 cycles

NR 1 ENG IDG LEAKING OIL. GROUNDED - YES. REMOVED & REPLACED IDG NR 1 IAW AMM 24-11-11. C/W INSTALLATION TEST PER AMM 24-11-00-700-802. CK GOOD. NO LEAKS.

Part: PROBE — OUT OF TOLERANCE (NR 1 FUEL TANK) · airframe 25,736 hrs · 7,463 cycles

WHILE PERFORMING T/C NG-28FCD-18088-1, FOUND UNIT F1 TO BE OUT OF TOLERANCE. ACFT GROUNDED. F1 TANK UNIT ON THE NR 1 MAIN FUEL TANK REMOVED AND REPLACED IAW AMM 28-41-21. UNIT WITHIN TOLERANCE NOW. SYSTEM TESTED GOOD IAW AMM 28-41-00-730-801, COMPARISON CHECKED GOOD IAW AMM 28-41-00-720-801.

Part: PROBE — OUT OF TOLERANCE (NR 2 FUEL TANK) · airframe 25,736 hrs · 7,463 cycles

WHILE PERFORMING T/C NG-28FCD-18090-1, FOUND THE F1 AND F3 TO BE OUT OF TOLERANCE. ACFT GROUNDED. F1 AND F3 PROBES REMOVED AND REPLACED IAW AMM 28-41-21. BOTH WERE WITHIN TOLERANCE. SYSTEM TESTED GOOD IAW AMM 28-41-00-730-801. COMPARISON CHECKED GOOD IAW AMM 28-41-00-720-801.

Part: WARNING SYSTEM — FALSE INDICATION (COCKPIT) · airframe 25,305 hrs · 7,332 cycles

BOTH HF 1 AND 2 RADIOS DISPLAY "INOP". GROUNDED - YES. ACCOMPLISHED RADIO TUNING PANEL INOP FAULT FIM 23-12-41-800-802. INOP DISPLAY GONE. HF'S NR 1 AND NR 2 OPS NML.

Part: SPACER — WORN (NR 2 ENGINE) · airframe 25,129 hrs · 7,275 cycles

WHILE ACCOMPLISHING FAN BLADE LUBE ON NR 2 ENG. T/C 78472002, FOUND SPACER 20 & 22 WORN. GROUNDED - YES. REPLACED NR 2 ENG FAN BLADE SPACERS AT POS 20 & 22, INSTALLED PER T/C 78472002.

Part: SHIM — DAMAGED (NR 2 ENGINE) · airframe 25,135 hrs · 7,277 cycles

WHILE ACCOMPLISHING FAN BLADE LUBE ON NR 2 ENGINE PER T/C 78472002, FOUND ALL SHIMS TO HAVE 25% TO 100% MOLYDAG COATING MISSING. GROUNDED - YES. ON DEFERRAL.

Part: FASTENER — LOOSE (NR 1 ENGINE) · airframe 23,811 hrs · 6,889 cycles

WHILE ACCOMPLISHING TC 7847200 NR 1 ENGINE FOUND LOOSE FASTENER AT FAN DUCT PANEL NR 5 WITH LPTACC SCOOP. GROUNDED - YES. TIGHTENED NR 1 ENG NR 5 PANEL FASTENER REF AMM 72-23-07.

Part: FAULT MESSAGE — ACTIVATED (NR 1 ENGINE) · airframe 23,188 hrs · 6,725 cycles

DURING COMPLETION OF T/C 78273000, FOUND MAINTAINANCE MESSAGE 73-10191 FOR INTERNAL EEC FAULT ON THE NR 1 ENGINE FOR LEG 1 ONLY. ACFT GROUNDED. PERFORMED EEC SELF TEST NR 1 IAW FIM 73-21, TASK 801. NO CURRENT FAULTS DURING TEST.

Part: FUEL CONTROL — FAULTED (APU) · airframe 22,827 hrs · 6,609 cycles

APU CSS START CHECK, FIRST APPEMPT FL360, FAULTED. SECOND ATTEMPT FL360, FAULTED. THIRD ATTEMPT FL 360, PASSED. START PEAK TEMP 980 SIMILAR TO FIRST TWO ATTEMPTS. ACFT GROUNDED. LOGGED FAULT CODE 49-31016 X2 OVERTEMP SHUT DOWN. 49-31168 NUMEROUS FUEL CONTROL UNIT TEMP OUT OF RANGE CURRENT STATUS, NO FAULTS NOTED. APU START ATTEMPT WAS NORMAL IAW FIM 49-31 TASK 805. ACCOMPLISHED FIM 49-30 TASK 802, INSPECTED APU WIRING HARNESS, NO DISCREPANCY NOTED. ACCOMPLISHED APU BITE NO FAULTS LOGGED IAW FIM 49-60, TASK 801. REMOVED AND REPLACED APU FUEL CONTROL UNIT IAW AMM 49-31-11. START AND OPS CHECKED NORMAL. PERFORMED APU BITE PROCEDURE, FIM TASK 49-61-00-700-801, NO FAULTS INDICATED. CSS PASSED.

Part: FMC — MALFUNCTIONED (COCKPIT) · airframe 22,541 hrs · 6,518 cycles

FMC DISAGREE - VERTICAL MESSAGE ON DESCENT. GROUNDED - YES. PERFORMED FIM 34-61TASK 835 FOR FMC DISAGREE ALL CLEARED. AIRCRAFT OK FOR SERVICE.

Part: VALVE — FAULTED (LT CABIN TEMP) · airframe 22,307 hrs · 6,443 cycles

AIR CONDITIONING AND ZONE TEMP LIGHT ILLUMINATED. MASTER CAUTION PRESSED LIGHTS GO OUT. CONTROL CABIN ZONE LIGHT DOES RESET WITH MASTER CAUTION RESET. ACFT GROUNDED. REMOVED AND REPLACED A FAULTED CONTROL CABIN ZONE TRIM AIR MODULATING VALVE IAW AMM 21-61-21. FAULT CLEARED ON THE PACK/ ZONE TEMP CONTROLLERS, OPS AND LEAK CHECKED GOOD.

Part: SIGN — DETACHED (EMERGENCY LIGHTS) · airframe 22,181 hrs · 6,401 cycles

FA REPORTED AN EXIT SIGN IS HANGING BY THE WIRE MID CABIN. ACFT GROUNDED. ENGAGED THE RETAINER. LIGHT OPS NORMAL.

Part: ACTUATOR — FAILED (LT RAM AIR) · airframe 21,981 hrs · 6,342 cycles

LEFT PACK LIGHT ILLUMINATED UPON MASTER CAUTION CHECK AND RESET. ACFT GROUNDED. LEFT PACK TEMP CONTROL INOPERATIVE. PERFORMED LEFT PACK TEMPERATURE CONTROL BITE PROCEDURE IAW FIM 21-62 TASK 801. BITE FAILED LEFT PACK RAM AIR ACTUATOR. REMOVED AND REPLACED LT RAM AIR INLET ACTUATOR. OPS CHECKED GOOD IAW AMM 21-51-21.

Part: OIL COOLER — LEAKING (NR 1 IDG) · airframe 21,861 hrs · 6,306 cycles

MFI INSPECTION OF NR 1 ENGINE IDG OIL LEVEL SHOWS NO OIL VISIBLE AND OIL WITHIN C- DUCT AREA. ACFT GROUNDED. PERFORMED LEAK CHECK ON THE NR 1 ENG IDG OIL COOLER, FOUND A PUDDLE LEAK FROM COOLER INBD SIDE, INSIDE FAN FRAME AREA. SERVICED THE NR 1 IDG TO FULL PRIOR TO RUN IAW AMM 12-13-21. REMOVED AND REPLACED THE NR 1 ENG IDG AIR/OIL COOLER IAW AMM 24-11-21-000, AND 24-11-21-400. LEAK CHECKED GOOD. SERVICED IDG.

Part: LENS — DETACHED (EMERGENCY LIGHT) · airframe 21,845 hrs · 6,303 cycles

R2 DOOR EXIT SIGN COVER FELL OFF. ACFT GROUNDED. REMOVED & REPLACED THE EXIT SIGN LIGHT ASSY IAW AMM 33-51-01-960-802. OPS CHECKED GOOD.

Part: WARNING MESSAGE — FALSE ACTIVATION (LT A/C PACK) · airframe 21,824 hrs · 6,295 cycles

ON RECALL, THE LEFT PACK LIGHT ILLUMINATED WITH A MASTER CAUTION. ACCOMPLISHED QRH PROCEDURES AND THE LEFT PACK LIGHT EXTINGUISHED WHEN MASTER CAUTION WAS RESET. ACFT GROUNDED. PERFORMED A FAULT ISOLATION IAW FIM 21-62 TASK 848, AND 21-62 TASK 801, NO DEFECTS NOTED.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 21,794 hrs · 6,289 cycles

LEFT PACK ON DURING RECALL, RESETS WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED INITIAL EVALUATION AND FAULT ISOLATION OF THE LT PACK IAW FIM 21-62 TASK 848, AND 21-62 TASK 801. NO FAULTS FOUND. OPERATED APU AND RAN BOTH PACKS, NO PACK LIGHT SHOWN OR ON RECALL. COULD NOT DUPLICATE.

Part: IDG — UNDERSERVICED (NR 1) · airframe 21,786 hrs · 6,287 cycles

DURING DESCENT, HAD TWO QUICK INTERMITTENT ILLUMINATION OF THE DRIVE LIGHT ON THE NR 1 GENERATOR. AT TOUCHDOWN, WHILE EXTENDING THE THRUST REVERSERS, SOURCE OFF AND GEN OFF BUSS ILLUMINATED FOR THE NR 1 ENGINE. NR 1 ENGINE GENERATOR WAS INOPERATIVE. ACFT GROUNDED. SERVICED IDG AS REQUIRED IAW AMM 12-13-21. CONNECTED THE IDG. RAN ENGINE. INSPECTED IDG, FUEL TO OIL COOLER, OIL TO AIR COOLER, AND IDG DRAIN WITH NO LEAKS DETECTED. DRIVE LIGHT EXTINGUISHED AND GEN 1 DISPLAYED PROPER VOLTAGE AND FREQUENCY WHILE SUCCESSFULLY POWERING AIRCRAFT IAW AMM 24-11-00-700-802.

Part: TRANSITION PANEL — CORRODED (BS 767-787) · corrosion level 2 · airframe 21,699 hrs · 6,260 cycles

AFT CARGO BAY, RT SIDE TRANSITION PANEL JUST FWD OF AFT CARGO DOOR HAS VARIOUS SPOTS OF LIGHT CORROSION AROUND NUT PLATE HOLES BS 767 - 787. ACFT GROUNDED. REMOVED CORROSION. FOUND TO BE OUT OF LIMITS IAW SRM 53-60-15. REMOVED AND REPLACED THE TRANSITION PANEL IAW DWG 146A8127, REV- , DWG 146A0081, REV-, SRM 51-40-05, AND 51-40-02.

Part: FLOOR SUPPORT — CRACKED (BS 344-360) · airframe 21,699 hrs · 6,260 cycles

FLOOR SUPPORT IS CRACKED AT BS 344 - 360, LBL 11. ACFT GROUNDED. REPLACED THE FLOOR SUPPORT IAW DWG 141A5400, REV B.

Part: TRANSITION PANEL — CRACKED (BS 727B-767) · airframe 21,699 hrs · 6,260 cycles

AFT CARGO BAY, RT SIDE TRANSITION PANEL HAS VARIOUS SPOTS OF CORROSION FROM BS 727B TO 727J. ACFT GROUNDED. REMOVED CORROSION IAW SRM 53-00-53-1A-2. FOUND TO BE WITHIN LIMITS IAW SRM 53-00-53-1A-2. 4A(2). ALODINED AND PRIMED IAW SRM 53-00-53-1A-2.2.E. REPAIRED THE TRANSITION PANEL IAW SRM 53-00-53-2R-5.

Part: STRUCTURE — CORRODED (BS 967-986.5) · corrosion level 2 · airframe 21,699 hrs · 6,260 cycles

INNER STRUCTURE AT THE R2 DOOR BETWEEN BS 967 AND 986.5 HAS CORROSION AT FASTENER HOLE LOCATIONS. ACFT GROUNDED. REMOVED CORROSION AND CHECKED LIMITS, ORIGINAL MAT .080, REMOVED MATERIAL .003, REMAINING MATERIAL .077 FOUND WITHIN LIMITS IAW SRM 53-70-15. APPLIED ALODINE IAW SRM 51-20-01. APPLIED PRIMER IAW SRM 51-20-01. REMOVED AND INSTALLED FASTENERS IAW SRM 51-40-02, APPLIED TOPCOAT IAW AMM 51-05-01.

Part: COMPUTER — FAULTED (AUTOTHROTTLES) · airframe 21,629 hrs · 6,241 cycles

AUTOTHROTTLES WILL NOT ENGAGE IN ANY MODE OF FLIGHT. ACFT GROUNDED. AUTOTHROTTLE FFR SHOWS ASM-2 RATE MONITOR FAULTS ON NUMEROUS FLTS IAW AMM 22-31-91, REMOVED/REPLACED ASM-2. OPS NML REF SAME. SERVO MOTOR TEST GOOD. THIS CLEARS MEL 22-4B, AND 22-99B.

Part: AUTOTHROTTLE SYS — MALFUNCTIONED · airframe 21,579 hrs · 6,226 cycles

AUTOTHROTTLES DISENGAGED, WILL NOT REMAIN ENGAGED. ACFT GROUNDED. PERFORMED A/T BITE IAW FIM 22-31, TASK 801. NO CURRENT FAULTS. FOUND FAULT FLT LEG 3 - 22-31688 - RATE MONITOR ASM 2 SUSPECT. PERFORMED FIM 22-32, TASK 819. INTERACTIVE TESTS ARE OK. NO FAULTS. NO HISTORY 30 DAYS.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 21,360 hrs · 6,157 cycles

AFTER ENGINE START ON RECALL LEFT PACK LIGHT ILLUMINATED. EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED FIM 21-53, 803, STEP E, SUB 2. LT PACK LIGHT DOES NOT ILLUMINATE AFTER TROUBLESHOOT. ACFT OK FOR SERVICE.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 21,360 hrs · 6,157 cycles

LEFT PACK LIGHT ILLUMINATED ON RECALL. ACFT GROUNDED. ON ACFT ARRIVAL, FOUND NO LT PACK LIGHT ON RECALL. PERFORMED FIM 21-53 TASK 803. RAN PACKS FOR 1 HOUR WITH VARYING TEMPS. LT PACK LIGHT DID NOT ILLUMINATE WITH RECALLS. IAW FIM, INTERMITTENT FAULT. PERFORMED PACK/ZONE TEMP CONTROLLER BITE CHECKS WITH GO IAW AMM 21-61-00. GROUND VERIFICATION CHECKED GOOD.

Part: AUTOTHROTTLE SYS — MALFUNCTIONED · airframe 21,253 hrs · 6,122 cycles

AUTOTHROTTLES DISCONNECT WITH ANY MOVEMENT. ACFT GROUNDED. ACCOMPLISHED FIM 22-32 TASK 819, OPS NORMAL, NO FAULTS NOTED AND NO HISTORY LAST 30 DAYS.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 21,253 hrs · 6,122 cycles

LEFT PACK LIGHT COMES ON WITH RECALL. ACFT GROUNDED. INITIAL INSPECTION FOUND THE NR 1 TEMP CONTROLLER SHOWING RAM AIR ACTUATOR FAILED RED LIGHT. CONTROLLER BITE TESTED IAW AMM 21-51-00-700-803, NO DEFECTS NOTED. RESET THE CONTROLLER AND RAN BITE TEST THREE MORE TIMES, NO DEFECTS NOTED. PRESSED RECALL AND NO PACK LIGHT ILLUMINATED. NO HISTORY LAST 30 DAYS. NO SYSTEM CONFIGURATION CHANGES REQUIRED.

Part: FMC — MALFUNCTIONED (LEFT) · airframe 21,203 hrs · 6,103 cycles

DURING TAXI IN, CAPTAIN`S FMC FAILED MULTIPLE TIMES, THEN RECOVERED MULTIPLE TIMES. ACFT GROUNDED. ACCOMPLISHED LEFT FMC BITE IAW FIM 34-61, TASK 801. NO CURRENT FAULTS FOUND. PERFORMED DFCS LRU REPLACEMNT TEST FOR LEFT FMC IAW AMM 22-11-00/501. SYS CHECKED NORMAL. FOUND LEFT FMC FAULT MESSAGE 22-11822. SYS OPS CHECKED NORMAL. NO HISTORY.

Part: SENSOR — FAULTED (APU INLET TEMP) · airframe 20,953 hrs · 6,039 cycles

RECEIVCED A FAULT LIGHT WHEN STARTING THE APU. ACFT GROUNDED. CONFIRMED FAULT, APU FAULT LIGHT COMES ON & REMAINS ILLUMINATED WHEN APU STARTED. APU CURRENT STATUS & FAULT HISTORY PAGE SHOW NUMEROUS FAULT MESSAGES 49-61223 FOR INLET TEMPERATURE SENSOR SHOWS SHORT CIRCUIT. ACCOMPLISHED FIM 49-60, TASK 812, FAULT ISOLATION, TROUBLESHOT TO T2 APU INLET TEMP SENSOR. REMOVED & REPLACED APU INLET TEMP SENSOR IAW AMM 49-61-31. APU GROUND FUNCTIONAL CHECKED NORMAL IAW FIM 49-60, TASK 801.

Part: LEAD — FAILED (NR 1 IGNITION) · airframe 20,918 hrs · 6,029 cycles

NR 1 ENGINE FAILED TO IGNITE DURING START. FUEL FLOW WAS NORMAL. ABORTED ENGINE START IAW QRH. IGNITION SWITCH WAS SELECTED TO RIGHT. ACFT GROUNDED. REMOVED AND REPLACED THE RT IGNITION LEAD ON THE NR 1 ENGINE IAW AMM 74-21-01, AND PERFORMED IGNITION SYSTEM AUDIBLE TEST IAW AMM 74-00-00-750-801-F00. OPS TESTED GOOD.

Part: AUTOTHROTTLE SYS — INTERMITTENT · airframe 20,633 hrs · 5,957 cycles

AUTOTHROTTLE WILL NOT STAY ENGAGED. ACFT GROUNDED. AUTOTHROTTLE CURRENT STATUS TEST PASSED. RAN SERVO MOTOR TEST, NO FAULTS. CURRENT STATUS SHOWS SEVERAL ASM-2 FAULTS AS PREVIOUSLY NOTED. REPLACED THE NR 2 AUTOTHROTTLE SERVO MOTOR AS A PRECAUTION DUE TO SEVERAL LOGGED FAILURES ON SEVERAL LEGS. OPS NORMAL IAW AMM 22-31-91.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 20,386 hrs · 5,892 cycles

AT TOP OF DESCENT, RECALL PUSH ILLUMINATED CONTROL CABIN ZONE TEMP. COMPLIED WITH QRH. CABIN TEMP NORMAL. ACFT GROUNDED. ACCOMPLISHED PACK TEMP CONTROL BITE IAW FIM 21-62 TASK 801. NR 2 CONTROLLER SHOWS FLIGHT DECK TRIM VALVE FAULT LAST LEG. ACCOMPLISHED VERIFY TEST, FAULT DID NOT RETURN. RESET FAULT, FLIGHT DECK ZONE TEMP OPS NORMAL.

Part: CONTROLLER — MALFUNCTIONED (COCKPIT TEMP) · airframe 19,826 hrs · 5,734 cycles

CONTROL CABIN ZONE TEMP CAUTION ON RECALL. EXTINGUISHED ON MASTER CAUTION RESET. ACFT GROUNDED. CONTROL CABIN PRIMARY TEMP CONTROLLER INOPERATIVE. NR 2 PACK/ZONE TEMP CONTROLLER SHOWS FLT DECK TRIM VALVE FAULT ON PREV FLT. RESET FAULT. FAULT DID NOT RETURN. BITE TESTED NR 2 CONTROLLER GOOD IAW AMM 21-51-00. FUNCTIONAL TESTED FLT DECK TRIM VALVE GOOD.

Part: CONTROL VALVE — FAILED (RT A/C PACK) · airframe 18,912 hrs · 5,504 cycles

ON RECALL RIGHT PACK LIGHT ILLUMINATES. ACFT GROUNDED. PERFORMED PACK TEMP CONTROL BITE IAW FIM TASK 21-62 TASK 801. TCV FAULT INDICATED. REMOVED AND REPLACED TEMP CONTROL VALVE IAW AMM 21-51-10. LEAK CHECK AND OPS CHECKED GOOD.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 18,770 hrs · 5,472 cycles

RIGHT PACK LIGHT ILLUMINATED ON RECALL. LIGHT RESETS NORMALLY. ACFT GROUNDED. BITE OF NR 2 CONTROLLER SHOWS TCV FAULT. FAULT CLEARS DURING BITE & OPS CHECK NORMAL, IAW AMM 21-61-20-400-801.

Part: CONTROL VALVE — FAILED (RT A/C PACK) · airframe 18,407 hrs · 5,349 cycles

RIGHT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL. QRH COMPLETED. ACFT GROUNDED. BITE CHECK OF RIGHT ZONE/TEMP CONTROLLER FAULTS TCV-THIS PACK. REPLACED RIGHT PACK TCV (V-141). ZONE/TEMP CONTROLLER BITE PASSES. NO LEAKS NOTED AT TCV, IAW AMM 21-51-10/401 AND FIM 21-62/831. GROUND VERIFICATION SUCCESSFUL.

Part: ACTUATOR — LEAKING (NR 2 VSV) · airframe 18,345 hrs · 5,322 cycles

F/O FOUND FUEL DRIPPING ON WALKAROUND NR 2 ENGINE. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE RT VSV IAW AMM 75-31-01. VSV ACTUATOR LEAK TEST PASSED IAW AMM 75-31-01-790-801-F00. NO LEAKS NOTED. GROUND VERIFICATION CHECKED GOOD. TESTS 3A & 12 PASSED, NO LEAKS NOTED.

Part: WARNING LIGHT — FALSE ACTIVATION (CABIN TEMP) · airframe 17,253 hrs · 4,999 cycles

UPON RECALL ZONE TEMP CONT CABIN LIGHT ILLUMINATED. ACFT GROUNDED. T/S FIM 21-61-TASK 801. BITE CHECK BOTH ZONE TEMP CONTROLLERS NO FAULTS, CLEANED FLIGHT DECK SENSOR. OPS CHECK NORMAL. NO RECALL LIGHT INDICATION.

Part: BLEED AIR SYS — UNKNOWN · airframe 17,142 hrs · 4,962 cycles

AFTER ENGINE 0 PSI BLEED AIR PRESSURE ON ENGINE NR 2. ACFT GROUNDED. CHECKED ALL C/B AND ALL WERE SET. OPENED REVERSER HALF AND CHECK FOR OPERATION OF BLEED AIR REGULATOR LATCHING SOLENOID. SOLENOID OPS NORMAL. WRENCHED CHECKED PRSOV AND FOUND SMOOTH OPERATION. CLOSED REVERSER HALVES AND SUPPLIED PRESSURE TO PNEUMATIC SYSTEM WITH NR 2 ENGINE AND DUCT PRESSURES WERE NORMAL, REF AMM 36-00-00-860-804. GROUND VERIFICATION NORMAL.

Part: REGULATOR — FAILED (NR 2 ENGINE) · airframe 17,144 hrs · 4,963 cycles

ENGINEERING REQUEST ACCOMPLISH RT ENGINE BLEED AIR SYS HEALTH CHECK. ACFT GROUNDED. PERFORMED T/C NG36NG-00001, ENGINE BLEED AIR SYS HEALTH CHECK ON NR 2 ENGINE UP TO STEP 5- STILL REQUIRES STEP 6- ENGINE BLEED AIR CROSSOVER OPS TEST. R & R PRECOOLER CONTROL VALVE, REF AMM 36-12-02. R & R HIGH STAGE REGULATOR, REF AMM 36-11-07. ACCOMPLISHED BLEED AIR CROSSOVER OPS TEST, ALL BLEED SYS INDICATIONS NORMAL AND WITHIN LIMITS IAW AMM 36-11-00-710-801. GROUND VERIFICATION ACCOMPLISHED AND PASSED.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 16,992 hrs · 4,919 cycles

ZONE TEMP LIGHT ILLUMINATED, CONT CABIN, WITH RECALL LIGHT. EXTINGUISHED PUSHING MASTER CAUTION. ACFT GROUNDED. RT PZTC LOGGED FLT DECK TRIM VALVE. RESET RIGHT PZTC. RAN PACK FOR 45 MINUTES AT VARIOUS SELECTED TEMP. VERIFIED VALVE PASSED WITH NUMEROUS BITE CHECKS IAW AMM TASK 21-61-00-700-806-002. CLEARS MEL 21-21F.

Part: WARNING LIGHT — FALSE ACTIVATION (RT A/C PACK) · airframe 16,499 hrs · 4,788 cycles

RIGHT PACK LIGHT ILLUMINATES ON RECALL EXTINGUISHING ON MASTER CAUTION RESET. PERFORMED BITE TEST ON RT PACK TEMP CONTROLLER. FOUND TCV FAULTED. RESET PACK TEMP CONTROLLER. TCV FAULT EXTINGUISHED. PERFORMED OPS CHECK ON RT TCV IAW AMM 21-61-00, NO FAULTS NOTED. RT PACK TEMP CONTROLLER, OPS CHECK GOOD IAW AMM 21-61-20. PACK LIGHT NO LONGER ILLUMINATES ON RECALL.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 16,019 hrs · 4,667 cycles

FMC DISAGREE LIGHTS ON THE GROUND. ACFT GROUNDED. ACCOMPLISHED FMC RESET PROCEDURES IAW QRH. OPS CHECK GOOD.

Part: CONNECTOR — LOOSE (START VALVE) · airframe 15,881 hrs · 4,635 cycles

NR 1 ENGINE FAILED TO START, NO ROTATION, GOOD DUCT PRESSURE. ACFT GROUNDED. START VALVE CONNECTOR NOT SECURED, SECURED CONNECTOR. PERFORMED GROUND ENGINE RUN, GROUND VERIFICATION CHECKS GOOD. OK FOR CONTINUED SERVICE.

Part: FCU — FAILED (APU) · airframe 15,693 hrs · 4,590 cycles

APU FAILED CSS TEST, START ATTEMPS AT 400, 360, 320 FAULT LIGHT ON FOR 5 MIN AFTER EA START. ACFT GROUNDED. R & R APU FCU REF AMM 49-31-11. OPS AND LEAK CK GOOD.

Part: WARNING LIGHT — FALSE ACTIVATION · airframe 15,683 hrs · 4,588 cycles

IAW MAINTENANCE REQUEST, TRIED CSS. 1ST ATTEMPT AT FL 380. GOT FAULT LIGHT. OUT AFTER 3+ MINUTES. 2ND ATTEMPT AT FL 365. FAULT LIGHT AGAIN, LIGHT OUT AFTER ABOUT 5.5 MINUTES. ACFT GROUNDED. PERFORMED APU BITE TEST REF AMM 49-61-00-700-801. FOUND PREVIOUS FLT LEG FAULT 49-31016, OVERTEMP SHUTDOWN. NO CURRENT FAULT LOGGED. PERFORMED APU GROUND VERIFICATION OPS TEST, NORMAL APU STARTING AND SHUTDOWN. NO CURRENT FAULT LOGGED REF AMM 49-11-00-710-801.

Part: BATTERY PACK — FAILED (EMERGENCY LIGHTS) · airframe 15,647 hrs · 4,581 cycles

REF T/C 78233000, 3 EA BATTERY PACKS FAIL THE 15 MIN HOLD CHECK. L-1 DOOR EMERGENCY EXIT SIGN, LT OVERWING EMERGENCY EXIT LIGHT, L-2 DOOR EMERGENCY EXIT SIGN. ACFT GROUNDED. R & R 3 EA EMERGENCY BATTERY PACKS, OPS NORMAL REF AMM 33-51-06. BATTERY PACKS NOW PASS 15 MIN HOLD CK, REF T/C 78233000.

Part: FUEL CONTROL — FAILED (APU) · airframe 15,561 hrs · 4,560 cycles

APU FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT FL370. ACFT GROUNDED. R & R APU FCU REF AMM 49-31-11. OPS AND LEAK CHECKED GOOD.

Part: WARNING LIGHT — FALSE ACTIVATION (CABIN TEMP) · airframe 15,519 hrs · 4,546 cycles

ON RECALL CONTROLLER CABIN ZONE TEMP LIGHT ILLUMINATED. ACFT GROUNDED. BITE OF NR 2 CONTROLLER SHOWS FLIGHT DECK TRIM VALVE FAULT LOGGED LAST LEG. FAULT RESETS AND OPS NORMAL REF FIM 21-61, TASK 801.

Part: CONTROL VALVE — FAILED (LT A/C PACK) · airframe 15,422 hrs · 4,513 cycles

AFTER START, LT PACK LIGHT ILLUMINATES ON RECALL, CYCLED PACK SWITCH, SAME RESULT. ACFT GROUNDED. R & R LT PACK TEMP CONTROL VALVE IAW AMM 21-51-10/401. NO LEAKS NOTED. OPS CHECKS NORMAL.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 15,293 hrs · 4,481 cycles

FMC DATALINK FULL MESSAGE. ACFT GROUNDED. ACCOMPLISHED FIM 34-61, TASKS 810/839 WITH NO DISCREPANCIES NOTED.

Part: AUTOLAND SYS — MALFUNCTIONED · airframe 15,202 hrs · 4,455 cycles

AUTOLAND/HGS 16L ACFT HAD LT MAIN WHEEL LINED UP WITH RUNWAY EDGE LIGHTS. DISCONNECT THE AUTO PILOT AND HAD TO MAKE A SIGNIFICANT CORRECTION AT 100FT TO LINE UP WITH THE CENTER LINE. IN ACTUAL WEATHER COULD HAVE BEEN A BIG ISSUE. ACFT GROUNDED. PERFORMED DFCS FAULT REVIEW, BITE GRP 20, NO FAULTS RELATED TO AUTOLAND APPROACH. PERFORMED HGS FAULT REVIEW IAW SMM REF 34-36-00, NO FAULTS. PERFORMED ADDITIONAL MINIMUM TESTS TO MAINTAIN ACFT LWMP STATUS AS FOLLOWS, DFCS LAND VERIFY TEST, BITE GRP NR 49, IAW AMM 22-11-00/201, AND HGS SYSTEM TEST IAW 34-36-00, ALL TESTS PASS.

Part: WARNING LIGHT — FALSE ACTIVATION (LT WING-BODY) · airframe 15,067 hrs · 4,412 cycles

LEFT WING BODY OVERHEAT LIGHT ILLUMINATED AND WOULD NOT EXTINGUISH IAW QRH. NO PASSENGER CABIN SMELL OR SMOKE INDICATIONS. AFTER DIVERT SMELL LIKE A DUSTY FURNACE ROWS 18ABC AND AFT. ACFT GROUNDED. DIVERSION TIME-43 MINUTES. PERFORMED OVERHEAT DETECTION MODULE BITE TEST FOUND FAULT NR 10 AND NR 14. 26-18-201AMM. PERFORMED FIM TASK 26-801, CLEARED FAULT AND ALARM CODES, LT WING BODY OVERHEAT EXTINGUISHED. PERFORMED FIM TASK 26-802, WITH BREAKOUT BOX VOLTAGE AT PIN 4 AND PIN 12 5.8 VOLTS, ABOVE THE REQUIRED 5.1 VOLTS. RAN ENGINE AND VOLTAGE STILL GOOD. LEAK CHECKED BOTH AC PACKS AND LT L/E DUCTS, NO LEAKS NOTED.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 14,996 hrs · 4,393 cycles

FMC DISPLAYS SINGLE FMC OPERATION. ACFT GROUNDED. PERFORMED FIM TASK 34-61-836, FOUND TO BE AN INTERMITTENT FAULT.

Part: MOTOR — MALFUNCTIONED (BOOST PUMP) · airframe 14,677 hrs · 4,297 cycles

LEFT FWD FUEL PUMP - LOW PRESSURE LIGHT. ACFT GROUNDED. REPLACED LT FWD BOOST PUMP REF MM 28-22-41-400-801. OPS CHECKS GOOD, NO FUEL LEAK NOTED.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 14,080 hrs · 4,096 cycles

FMC DISAGREE. ACFT GROUNDED. FMC DISAGREE CHECKLIST IAW QRH COMPLETED SUCCESSFUL.

Part: SATCOM — LOCKED · airframe 13,920 hrs · 4,045 cycles

SATCOM LOCK-UP WITH POWER TRANSFER. ACFT GROUNDED. PERFORMED QRH PROCEDURE, OPS NORMAL.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 13,909 hrs · 4,043 cycles

FMC DISAGREE ON TAXI OUT. ACFT GROUNDED. PERFORMED QRH PROCEDURE, FAULT CLEARED.

Part: WARNING LIGHT — FALSE ACTIVATION (R1 WINDOW) · airframe 13,892 hrs · 4,038 cycles

DURING CLIMB RT SIDE WINDOW LIGHT ILLUMINATED. QRH PROCEDURES FOLLOWED TO SUCCESSFULLY RESET LIGHT. LIGHT ILLUMINATED AGAIN ON APPROACH. ACFT GROUNDED. WINDOW OPS AND LEAK CHECKED GOOD, IAW AMM 56-12-11-400-801 AND 30-41-00-710-801 AND 05-51-91-790-801. GROUND VERIFICATION CHECK OF R-2 SLIDING WINDOW HEAT TEST SUCCESSFUL IAW AMM 30-41-00-710-801.

Part: WIRE HARNESS — FAILED (R2 WINDOW) · airframe 13,880 hrs · 4,033 cycles

FLIGHT DECK RT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED IN FLIGHT. ACCOMPLISHED QRH LIGHT STAYED OFF UNTILL TAXI IN. DURING TAXI IN OVERHEAT LIGHT ILLUMINATED AGAIN. ACFT GROUNDED. FOUND WIRE HARNESS BAD, IF MOVING HARNESS NEAR CONNECTOR PLUG AT WINDOW COULD DUPLICATE, REPLACED WIRE HARNESS. OPS GOOD IAW MM 30-41-00-4.

Part: WARNING LIGHT — ILLUMINATED (APU) · airframe 13,696 hrs · 3,984 cycles

FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT, FL370. ACFT GROUNDED.

Part: LATCH — WORN (FWD CARGO DOOR) · airframe 13,595 hrs · 3,950 cycles

FWD CARGO DOOR HANDLE DOES NOT LINE UP WITH CUTOUT. ACFT GROUNDED. REMOVED FWD CARGO DOOR HANDLE REF AMM 52-31-14. INSTALLED "NEW EXTERNAL HANDLE WITH "NEW" SPRING, REF AMM 52-31-14. HANDLE STILL DOES NOT LINE WITH CUTOUT OF DOOR ON OUTSIDE. REMOVED EXTERNAL HANDLE ASSY, REF MM 52-31-14. REMOVED DOOR HANDLE HOUSING, REF SRM 51-40-02. ACCOMPLISHED EA NR: 800-52EA-15274, REV NEW, INSTALLED FWD CARGO DOOR HANDLE HOUSING AND MECHANISM. DOOR OPS CHECKED GOOD.

Part: WIRE HARNESS — NOT REPORTED (NR 1 ENGINE) · airframe 13,484 hrs · 3,916 cycles

NR 1 ENGINE HAS FAULT CODE 75-10361, HPTACC POS. SIGNAL OUT OF RANGE. ECONOMIC FAULT. ACFT GROUNDED. TSR ISSUED. REPLACED J9 HARNESS IAW MM 73-21-06-400-802-F00, OPS NORMAL IAW MM 73-21-00-700-804-F00, EEC TEST AND MM 71-00-00-700-807-F00, ACTUATOR TEST.

Part: KEYBOARD — WORN (FLIGHT DECK) · airframe 13,333 hrs · 3,872 cycles

CO-PILOT FMC KEYPAD IS WORN BEYOND LIMITS. CAN NO LONGER READ SEVERAL KEYPAD BUTTONS. ACFT GROUNDED. R & R F/O FMCDU KEYBOARD (PAD) IAW AMM 34-61-01-400. OPS CHECK OK.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 12,827 hrs · 3,734 cycles

LT PACK LIGHT ILLUMINATED. ACFT GROUNDED. SUSPECT LT PACK OVER TEMPED. RESET PUSHING RESET BUTTON. PERFORMED BITE OF TEMP CONTROLS TCU FAULT LOGGED BUT CLEARED. NO HISTORY NOTED 30 DAYS. OK FOR CONTINUED SERVICE. REF FIM 21-62, TASK 801.

Part: WARNING LIGHT — FALSE ACTIVATION (A/C PACK) · airframe 12,784 hrs · 3,722 cycles

PACK LIGHT ON RECALL EXTINGUISHES WITH MASTER CAUTION RESET. ACFT GROUNDED.

Part: SENSOR — FAILED (R1 WINDOW HEAT) · airframe 12,784 hrs · 3,722 cycles

RT SIDE FORWARD WINSHIELD OVERHEAT LIGHT ILLUMINATED. ACFT GROUNDED. PERFORMED BITE TEST FOR RT SIDE FWD WINDSHIELD. FOUND WINDOW SENSOR FAULT. REF FIM 30-41-00-810-801. SWITCHED TO ALTERNATE SENSOR. OVERHEAT LIGHT WENT OUT. BITE CHECK GOOD. REF AMM 30-41-00-710-801. OPS CHECK GOOD.

Part: TRANSMITTER — FAILED (AILERON) · airframe 12,432 hrs · 3,629 cycles

ON CLIMBOUT NEITHER AUTOPILOT A OR B WOULD STAY ENGAGED. AFTER SEVERAL SECONDS OF BEING ENGAGED THE AUTOPILOT WOULD DISENGAGE WITH AN ABRUPT TURN TO THE RIGHT. ACFT GROUNDED. FOUND BAD AILERON POSITION SENSOR. REPLACED SAME REF MM 22-11-29-000-801 & -400-801. FAILED AILERON POSITION SENSOR ADJ REF MM 22-11-29-820-801, STEP 2.D., 1, 13. ADJ 'B' A/P AILERON ACTUATOR ROD LENGTH REF MM 22-11-25-820-801. OPS NORMAL. COMPLETED AILERON POSITION SENSOR TEST WITH NO FAULTS. REF MM 22-11-29-820-801 & 22-11-29-710-801. ALSO TESTED AILERON A/P ACTUATOR REF MM 22-11-25 / 401& 22-11-25/501. ALL OPS NORMAL. ACFT CAT IIIA AUTOLAND AND HGS QUALIFIED. STATUS SCREW NOW REFLECTS THIS.

Part: WIRE HARNESS — CHAFED (NR 1 ENGINE) · airframe 12,427 hrs · 3,628 cycles

WHILE ACCOMPLISHING TC 78472000, "ENG INLET AND FAN INSP" WIRE HARNESS FOR LPT ACCOMPLISHED, CHAFE DAMAGE FROM CONTACT WITH "C" DUCT HEAT BLANKET. ENGINE NR 1. ACFT GROUNDED. R & R NR 1 ENGINE J10 HARNESS IAW MM 73-21-06-400-802-F00 THROUGH STEP 5.F.,1, B. PARTIALLY ACCOMPLISHED FADEC SYSEM TEST IAW MM 73-21-00-700-802-F00, COMPLETED STEPS 5.D., 3, A, B, C & E. THOSE TESTS PASS. ACCOMPLISHED ACTUATORS TEST ON ENGINE NR 1 REF MM 73-21-00-700-802-F00 STEP 5.D. (3)(D). OPS NORMAL. COMPLETED INSTALLATION OF J10 HARNESS REF MM 73-21-06-400-802-F00, STEPS 5.F. 1, C & E.

Part: VALVE — MALFUNCTIONED (A/C BAY) · airframe 12,420 hrs · 3,625 cycles

CONTROL CABIN ZONE TEMP LIGHT COMES ON DURING RECALL WITH MASTER CAUTION LIGHT. ACFT GROUNDED. ACCOMPLISHED PACK/ZONE TEMPERATURE CONTROLLER BITE TEST, NR 2 CONTROLLER INDICATES FLT DECK TRIM VALVE FAULT, REF MM 21-61-00-700-806-002. REPLACED FLT DECK TRIM VALVE, OPS TEST NORMAL, NO LEAKS NOTED, REF MM 21-61-21-400-801.

Part: CONVERTER — FAILED (APU STARTER) · airframe 12,410 hrs · 3,620 cycles

APU INOPERATIVE: MAINT MGS 49-41251 START CONVERTER UNIT SHOW HIGH TEMPERATURE NO APU ROTATION SHUTDOWN. ACFT GROUNDED. REMOVED, REPLACED, AND TESTED START CONVERTOR UNIT IAW MM 49-41-61-400-801. TESTS PASSENGER ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.

Part: SENSOR — INTERMITTENT (NR 2 ENGINE) · airframe 12,291 hrs · 3,587 cycles

NR1 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 7. TAKEOFF AND CRUISE ACMS REPORTS SHOW NORMAL PARAMETERS. ACFT GROUNDED. REPLACED NR 1 ENGINE N2 SPEED SENSOR IAW MM 77-11-02. TESTS GOOD IAW POWER PLANT TEST REF TABLE MM 71-00-00-800-811-F00, TESTS 13, 3A.

Part: WARNING LIGHT — FALSE ACTIVATION (LT A/C PACK) · airframe 12,171 hrs · 3,561 cycles

LEFT PACK LIGHTS ILLUMINATES ON RECALL. PACK LIGHT EXTINGUISHES ON MASTER CAUTION RESET. ACFT GROUNDED. PERFORMED BITE CK ON PACK TEMP CONTROLLER AND PASS "GO" IAW MM 21-61-00-700-806-002. NO HISTORY 30 DAYS.

Part: WARNING LIGHT — FALSE ACTIVATION (FMC) · airframe 12,112 hrs · 3,545 cycles

ON PUSHBACK RECEIVED A FMC DISAGREE LIGHT. ACFT GROUNDED. RAN CHECK LIST AND LIGHT WENT OUT.

Part: WARNING LIGHT — FALSE ACTIVATION (COCKPIT TEMP) · airframe 11,465 hrs · 3,368 cycles

AFTER ENGINE START, DURING MASTER CAUTION RECALL THE COCKPIT ZONE TEMP LIGHT ILLUMINATED. THE LIGHT EXTINGUISHES WHEN MASTER CAUTION SYSTEM IS RESET. ACFT GROUNDED. ACCOMPLISHED, FIM 21-62, TASK 848, NO FAULTS NOTED, NO HISTORY 30 DAYS.

Part: VALVE — UNKNOWN (NR 1 IDG) · airframe 11,432 hrs · 3,361 cycles

FOLLOW-UP TO NR 1 IDG FREQUENT SERVICING, ACFT GROUNDED. BAGGED NR 1 IDG, RAN FOR 10 MIN NO LEAKS NOTED. REPLACED NR 1 IDG VENT VALVE AND SERVICING FITTING IAW TSR AND AMM 24-11-00-700-804 TURN CHECK, LEAK CHECK GOOD, SERVICING GOOD, TO FULL.

Part: WARNING LIGHT — FALSE ACTIVATION (APU) · airframe 10,861 hrs · 3,183 cycles

APU FAULT LIGHT ILLUMINATED DURING START. ACFT GROUNDED. INTERROGATED CPU, FOUND FAULT CODE 49-41251, START CONVERTER UNIT SHOWS HIGH TEMP. NO HISTORY LAST 90 DAYS. ACCOMPLISH TASK 49-40, TASK 812, THROUGH STEP E. 4, 2 TIMES. DID NOT GET EITHER FAULT CODE 49-41251 OR 49-41256. PERFORMED 2 COMPLETE APU STARTS ALL INDICATIONS NORMAL NO FAULTS. IAW TASK DETERMINED TO BE INTERMITTENT FAULT.

Part: A/C PACK — FAULTED · airframe 10,670 hrs · 3,109 cycles

ILLUMINATION OF THE FWD CABIN ZONE TEMP ON MASTER CAUTION RECALL. LIGHT EXTINGUISHES AFTER RESET OF MASTER CAUTION SYSTEM. ACFT GROUNDED. NR 2 ZONE TEMP CONTINUE LOGGED ZONE TRIM VALVE, BITE TESTED GOOD. FAULT RESET, IAW TASK 21-61-70-700-806-002.

Part: VALVE — FAILED (A/C BAY) · airframe 10,647 hrs · 3,099 cycles

FWD CABIN ZONE TEMP AMBER LIGHT ON OVERHEAD ILLUMINATED ON RECALL LANDING CHECK. MASTER CAUTION CLEARS ON RESET. ACFT GROUNDED. REPLACED FWD CABIN ZONE TRIM VALVE. OPS CHECKED GOOD. NO LEAKS NOTED.

Part: MODULATING VALVE — FAILED (A/C BAY) · airframe 10,592 hrs · 3,085 cycles

AFTER START ON RECALL FWD CABIN ZONE TEMP LIGHT ILLUMINATED. LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. R & R FWD CABIN TRIM AIR MODULATING VALVE IAW AMM 21-61-21. OPS CK GOOD. PERFORMED BITE CK. BITE CK GOOD.

Part: WARNING LIGHT — ILLUMINATED · airframe 10,587 hrs · 3,084 cycles

DURING LANDING CHECKLIST AND MASTER CAUTION RECALL, FWD CABIN ZONE TEMP LIGHT ILLUMINATED. WHEN MASTER CAUTION RESET IS PUSHED, LIGHT GOES OUT. ACFT GROUNDED. NR 2 CONTROLLER LOGGED ZONE TRIM VALVE IN BIT. NO FAULTS IN PREVIOUS FLIGHT. ACCOMPLISHED ZONE TEMP CONTROLLER BITE TEST REF MM 21-61-00, FAULT RESET, TEST PASSED.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 10,342 hrs · 3,002 cycles

FMC DISAGREE LIGHT ON GROUND. ACFT GROUNDED. CHECKLIST COMPLETED. FMC DISAGREE LIGHT EXTINGUISHED.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 10,211 hrs · 2,962 cycles

MAP WARNING ANNUNCIATED ON F/O DISPLAY. ACFT GROUNDED. ACCOMPLISHED FIM TASK 34-61 NR 836. FMC OPS RESTORED. NO FAULTS LOGGED ON BOTH FMC. GROUND VERIFICATION CHECK OK. REALIGNED BOTH IRU LT AND RT FMCS. CHECKED OK.

Part: WARNING MESSAGE — FALSE ACTIVATION (APU) · airframe 10,017 hrs · 2,899 cycles

MAINTENANCE MESSAGE 49-37168 ON CURRENT STATUS PAGE. ACFT GROUNDED. VISUALLY INSPECTED APU HARNESS AND AC WIRING. DISCONNECTED AND INSPECTED P22 FCU. MEASURED RESISTANCE PINS 4 TO 5 = 110 OHMS. RECONNECTED P22 AND REACCOMPLISHED APU BITE-FAULT CLEARED.

Part: LENS — MISSING (CABIN) · airframe 9,854 hrs · 2,835 cycles

SMALL OVAL LIGHT OVERHEAD AISLE AT ROW 11C COVER MISSING. SMALL OVAL LIGHT OVERHEAD 17C IS CRACKED. ACFT GROUNDED. INSTALLED NEW EMERGENCY LIGHT LENS AT ROW 11C AND 17C REF MM 33-51-03, OPS NORMAL.

Part: CIRCUIT BREAKER — BROKEN (WINDOW HEAT) · airframe 9,740 hrs · 2,805 cycles

WINDOW HEAT, OVERHEAT LIGHT ILLUMINATED RT INSIDE FORWARD WINDOW. ACFT GROUNDED. FOUND RT FWD WINDOW HEAT CIRCUIT BREAKER BROKEN. R & R CIRCUIT BREAKER, PERFORMED WINDOW HEAT CONTROL SYSTEM TEST, REF AMM 30-41-11-710-801.

Part: SATCOM — MALFUNCTIONED · airframe 9,530 hrs · 2,729 cycles

SATCOM NOT AVAILABLE. ACFT GROUNDED. PULLED SATCOM CIRCUIT BREAKER & RESET, SAT PROMPTS APPEARED ON BOTH MCDU'S, OPS NORMAL, IAW FIM 23-15, TASK 801.

Part: SENSOR — FAILED (N2 SPEED) · airframe 9,511 hrs · 2,721 cycles

NR 2 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 07 DURING TAKEOFF/CRUISE. ACMS REPORTS SHOW NORMAL PARAMETERS. ACFT GROUNDED. REPLACED N2 SPEED SENSOR REF MM 77-11-02. BITE & LEAK CK OK.

Part: WARNING MESSAGE — FALSE ACTIVATION (FMC) · airframe 9,226 hrs · 2,645 cycles

FMC DISAGREE MESSAGE ON SCATCH PAD. ACFT GROUNDED. PERFORMED FIM 34-61, TASK 835. FMC DISAGREE MESSAGE REMOVED. TWO CIRCUIT BREAKERS OPENED, RESET FOR FIM P18-2 A6 & P6-1 D16. OPENED, RESET P6-1 D16 IAW FIM 34-61, TASK 835, OPS NORMAL. ETOPS GROUND VERIFICATION TEST SUCCESSFUL.

Part: WARNING LIGHT — FALSE ACTIVATION (APU) · airframe 9,206 hrs · 2,634 cycles

ON APU START THE FAULT LIGHT CAME ON. RAN QRH WAITED 5 MINUTES. MADE ANOTHER ATTEMPT FAULT LIGHT CAME BACK ON. ACFT GROUNDED. ACCOMPLISHED INLET OVERHEAT SHUTDOWN FAULT PROCEDURE IAW TASK FIM 49-90, TASK 802 BY PULLING & CYCLING CIRCUIT BREAKERS. ORIGINAL FAULT CODE WAS 49-91006 APU STARTED NORMAL NO HISTORY PAST 90 DAYS.

Part: SENSOR — FAILED (APU INLET TEMP) · airframe 9,209 hrs · 2,636 cycles

APU FAULT LIGHT CAME ON. WITHIN 5 MINUTES FAULT LIGHT WENT OUT. SHUTDOWN APU. ACFT GROUNDED. VERIFIED INLET TEMP SENSOR BAD, READS 300 OHMS PIN TO GROUND, IAW FIM TASK 49-60, TASK 812. REPLACED INLET TEMP SENSOR IAW AMM 49-61-31-000-801 AND 49-61-31-400-801. RAN APU - OK NO FAULTS FOUND.

Part: WARNING LIGHT — FALSE ACTIVATION (CONTROLLER) · airframe 8,720 hrs · 2,481 cycles

CONT CAB ZONE TEMP LIGHT ILLUMINATED DURING MASTER CAUTION RECALL, EXTINGUSHED WHEN RESET THE MASTER CAUTION. ACFT GROUNDED. TESTED CONTROLLER IAW MM 21-61-20, STEP F. SYSTEM OPS CHECKED GOOD. NO HISTORY IN LAST 60 DAYS.

Part: CHARGER — FAULTED (MASTER) · airframe 8,499 hrs · 2,421 cycles

ELECTRICAL LIGHT ILLUMINATED AFTER ENGINE START. ACFT GROUNDED. ACCOMPLISHED ELECRICAL. LIGHT MESSAGE BITE PROCEDURE, IAW AMM 24-31, TASK 801. FOUND BATTERY CHARGER INOPERATIVE. FAULT LIGHT CLEARED. ACCOMPLISHED AMM 24-31 TASK 824 BATTERY CHARGER SHOWS ALL GREEN LIGHTS. NO HISTORY PAST 60 DAYS.

Part: SWITCH — DAMAGED (DUCT OVERHEAT) · airframe 8,266 hrs · 2,360 cycles

WHILE PERFORMING DUCT OVERHEAT SWITCH OPS TEST IAW NG-23EO-07569-2, FOUND OVERHEAT SWITCH DAMAGED. ACFT GROUNDED. REPLACED DUCT OVERHEAT SWITCH IAW AMM 21-61-05-400-801. OPS TESTED IAW AMM 21-61-00-700-811-002.

Part: START VALVE — FAILED (NR 1 ENGINE) · airframe 7,595 hrs · 2,197 cycles

NR 1 START VALVE WOULD NOT OPEN, NO ROTATION, WHEN TRYING TO START THE NR 1 ENGINE. ACFT GROUNDED. FOUND NR 1 ENGINE START VALVE INOPERATIVE. REPLACED START VALVE & OPS AND LEAK CHECKED GOOD IAW AMM 80-11-03.

Part: CONTROLLER — MALFUNCTIONED (NR 2 ZONE TEMP) · airframe 7,259 hrs · 2,095 cycles

AFTER ENGINE START, ON MASTER CAUTION RECALL, CONT CABIN ZONE TEMP ANNUNCIATOR ILLUMINATED. ACFT GROUNDED. RESET NR 2 ZONE TEMP CONTROLLER IAW MM 21-60-00 AND 21-62 TASK 801.

Part: LAMP — INOPERATIVE (EMERGENCY LIGHT) · airframe 7,259 hrs · 2,095 cycles

EMERGENCY EXIT LIGHT UNDER L2 INOPERATIVE. ACFT GROUNDED. REPLACED LAMPS IAW AMM 33-51-04-960-801. OPS CHECKED GOOD IAW AMM 33-51-04-960-801.

Part: BLEED VALVE — NO TEST (NR 2 ENGINE) · airframe 7,259 hrs · 2,095 cycles

NR 2 ENGINE PRSOV FAILED HEALTH CHECK. ACFT GROUNDED. REPLACED NR 2 ENGINE PRSOV OPS & LEAK CHECK GOOD IAW MM 36-11-04.

Part: VALVE — NO TEST (NR 1 ENGINE) · airframe 7,259 hrs · 2,095 cycles

NR 1 ENGINE HIGH STAGE VALVE FAILED HEALTH CHECK. ACFT GROUNDED. REPLACED NR 1 ENGINE HIGH STAGE VALVE IAW MM 36-11-06. OPS & LEAK CHECKS GOOD.

Part: FMC — FALSE INDICATION · airframe 6,483 hrs · 1,872 cycles

FMC DISAGREE, ACFT GROUNDED. QRH COMPLETED, OPS NORMAL.

Part: SENSOR — FAILED (R2 WINDOW HEAT) · airframe 6,298 hrs · 1,819 cycles

RT SIDE WINDOW HEAT OVERHEAT WOULD NOT RESET AFTER COOLING. ACFT GROUNDED. WHCU SHOWS SENSOR FAULT. SWAPPED CORD WITH A NEW CORD- NO HELP. REF FIM TASK 30-41-00-810-811 SWAPPED PRIMARY SENSOR TO SPARE SENSOR TERMINAL WITHOUT REMOVING THE WINDOW, RT SIDE WHCU SYS TEST OK. REF MM 30-41-11-710-801.

Part: AUTOTHROTTLE SYS — MALFUNCTIONED · airframe 6,123 hrs · 1,769 cycles

AUTOTHROTTLES AT CRUISE CONTINUALLY DISENGAGE POSSIBLE SLIP, SPLIT IN MOVEMENT, NR 1 THROTTLE LEADS THEN TRIPS SYS OFF. ACFT GROUNDED. OPEN

Part: SERVO — INOPERATIVE (THROTTLE) · airframe 6,020 hrs · 1,736 cycles

AUTOTHORTTLES DISENGAGED ON CLIMBOUT AND WILL NOT ENGAGE. ACFT GROUNDED. A/T FLT FAULT SHOWS ASM-1 RATE MONITOR FAULT. R & R ASM-1, REF 22-31-91. A/T CURRENT STATUS AND SERVO MOTOR BITE CHECKED GOOD.

Part: AUTOTHROTTLE SYS — INOPERATIVE · airframe 5,694 hrs · 1,640 cycles

AUTOTHROTTLES WILL NOT STAY ENGAGED. ACFT GROUNDED. COULD NOT DUPLICATE, GROUND FUNCTIONAL TEST OK. A/T FAULT REVIEW LOGGED NR 1 ASM FAULT NR 22-31687 ON ONLY 1 FLT LEG OUT OF 40. ACCOMP FIM 22-32/819, A/T CURRENT STATUS CK & TORQUE CK NORMAL. ALSO ACCOMP SEVERAL TIMES SERVO MOTOR TEST REF MM22-31-00 STEP I, TEST NORMAL. NO HISTORY 30 DAYS.

Part: CIRCUIT BREAKER — NONE · airframe 5,135 hrs · 1,473 cycles

AUTOTHROTTLE CIRCUIT BREAKER OPEN. ACFT GROUNDED. NO HISTORY OF CIRCUIT BREAKER TRIPPING LAST 30 DAYS. GVI OF CIRCUIT BREAKER PANEL, NO FAULT FOUND. A/T OPS TEST GOOD, REF AMM 22-31-00-710-801. ALL GROUND VERIFICATION TEST GOOD.

Part: AUTOTHROTTLE SYS — FAULTY · airframe 5,006 hrs · 1,434 cycles

AUTOTHROTTLES WILL NOT REMAIN ENGAGED. A/T BITE SHOWS NUMEROUS ASM-2 FAULTS (22-31688 RATE MONITOR). REPLACED NR 2 AUTO THROTTLE SERVO MOTOR REF AMM TASK 22-31-91, OPS CHECKED NORMAL. ACCOMPLISHED A/T OPS TEST REF AMM 22-31-00/501 AND DFCS GP 49 LAND VERIFY TESTS REF AMM 22-11-00, AND HGS TEST REF SMM 34-36-00, OPS CHECKED NORMAL.

Part: UNKNOWN — UNKNOWN · airframe 4,948 hrs · 1,413 cycles

ON TAKEOFF, USED 27K BUMP FLAPS 25 BASED ON A POAT OF 29 DEG C AND PQNH OF 29.73 IN HG. PLANNED N1 WAS 102.4 AND BOX HAD 102.5. UPON SETTING N1 AFTER PRESSING TOGA, STARTED PUSHING THROTTLES FORWARD TO GET 102.4/102.5 BUT WAS GETTING 101.4 N1. CAPTAIN FIREWALLED THROTTLES ABOVE 80KTS BUT ONLY GOT 101.4 MAX N1. CURRENT ATIS HAD OAT AT 26 DEG C AND QNH AT 29.74 IN HG. ACCOMP FIM TASK 808. COMPLETED THRU PG 2 STEP E. (2)(B)(2). ON DISCRETS PG BOTH ENG REGULATES, READ 3. 06722. REMOVED ENG ID PLUG 73-21-61-000-801-F00. CHECKED CONFIGURATION AND NO FAULT NOTED IAW 73-21-61-800-001-F00. INSTALLED NR 1 ENG ID PLUG IAW 73-21-61-400-801-F00. COMPLETED FIM TASK 73-05 TASK 808 INCLUDING THRUST LEVER ADJ AND THRUST REV POSITION TEST MM 73-21-00 AND TEST 5, POWER ASSURANCE CHECK FOR BOTH ENGINES, MM 71-00-00. NO DEFECTS NOTED.

Part: FILTER — MALFUNCTIONED (TEMP SENSOR) · airframe 4,797 hrs · 1,376 cycles

CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED DURING RECALL. EXTINGUISHES WHEN RESET IS PUSHED. PERFORMED BITE TEST ON BOTH ZONE TEMP CONTROLLERS. NR 2 ZONE TEMP CONTROLLER SHOWED FAULT FOR FLIGHT DECK TRIM VALVE. REPLACED CABIN TEMP SENSOR FILTER IAW AMM 21-61-06. OPERATED CABIN ZONE TEMP CONTROL SYS NO FAULT. NO HISTORY 60 DAYS.

Part: EEC — FAULTY (NR 1 ENGINE) · airframe 4,040 hrs · 1,171 cycles

NR 1 ENGINE EEC BITE SHOWS SHORT TERM FAULT 73-20101. INTERNAL EEC FAULT LOGGED MULTIPLE TIMES IN LAST 10 LEGS. ACFT GROUNDED. ACCOMPLISHED T/S IAW FIM 73-21, TASK 807 - INITIAL EVALUATION CONFIRMED FAULT 73-20101 WITH NO OTHER FAULT CODES. REPLACED NR 1 ENGINE EEC IAW MM 73-21-60-000-801-F00/ MM 73-21-60-400-801-F00. VERIFIED EEC SOFTWARE 2044M25P15 INSTALLED. PERFORMED FADEC TEST IAW MM 73-21-00-700-801-F00 - ALL SUBTESTS PASS.

Part: VALVE — FAILED (CABIN TEMP) · airframe 3,785 hrs · 1,115 cycles

ZONE TEMP LIGHT ON RECALL. PERFORMED PACK ZONE TEMP CONTROLLER BITE TEST ON NR 1 & 2 CONTROLLERS. NR 2 CONTROLLER FLIGHT DECK TRIM VALVE FAILED. RESET & VERIFIED TWICE. NO HISTORY FOR 90 DAYS. REF AMM 21-60-00.

Part: WARNING LIGHT — FALSE ACTIVATION (FMC) · airframe 3,666 hrs · 1,079 cycles

FMC DISAGREE MESSAGE DISPLAYED ON GROUND. PERFORMED QRH, OPS NORMAL.

Part: AUTOTHROTTLE SYS — MALFUNCTIONED · airframe 3,566 hrs · 1,053 cycles

AUTOTHROTTLE FAILED ON TAKEOFF. WOULD NOT RE ENGAGE ON CLIMB OR CRUISE. NO CURRENT FAULTS AND LAST INFLIGHT FAULT WAS 8 FLIGHTS AGO. NO HISTORY LAST 30 DAYS. PERFORMED AUTOTHROTTLE CURRENT STATUS AND ALL INTERACTIVE TESTS IAW FIM 22-11 TASK 802, ALL OPS NORMAL.

Part: CONTROL UNIT — FAULTED (EE BAY) · airframe 3,451 hrs · 1,022 cycles

ELEC LIGHT ILLUMINATED ON OVERHEAD ON PANEL. A/C POWER WAS REMOVED WHEN GROUND POWER WAS DISCONNECTED. VERIFIED SPCU FAULT. REPLACED SPCU. SYS TESTS GOOD REF TASK 24-34-11-700-801.

Part: SWITCH — INOPERATIVE (AUTOTHROTTLE) · airframe 3,025 hrs · 949 cycles

AUTOTHROTTLE WILL NOT STAY ENGAGED. R & R NR 1 AUTOTHROTTLE SWITCH IAW AMM REF 22-31-51-000-801/22-31-51-400-801. OPS CHECKED GOOD. NO FAULTS LOGGED ON A/T INFLIGHT FAULTS, OR CURRENT FAULTS.

Part: SERVO — FAILED (THROTTLE STAND) · airframe 3,178 hrs · 940 cycles

AUTOTHROTTLE DISCONNECTED ON TAKE OFF ROLL JUST AFTER PASSING 100 KTS. AFTER TAKE OFF, AUTOTHROTTLE WAS AGAIN ENGAGED AND WORKED FOR REMAINDER OF FLT. CURRENT STATUS TESTED GOOD AND SERVO TESTED GOOD, BUT SYS HAS PREVIOUS WRITE-UP AND THERE IS AN ASM-1 FAULT IN FAULT R & R ASM-1 REF 22-31-91. OPS NORMAL REF.

Part: AUTOTHROTTLE SYS — MALFUNCTIONED · airframe 3,083 hrs · 911 cycles

AUTOTHROTTLE DISENGAGES A FEW SECONDS AFTER ARMING THE AUTOTHROTTLE SWITCH. UNABLE TO DUPLICATE DEFECT. PERFORMED AUTOTHROTTLE OPS TEST IAW MM 22-31-00-710-801 AND AUTOTHROTTLE SYS TEST IAW MM 22-31-00-710-802. ALL TESTS PASS. ACFT IS QUALIFIED FOR CAT IIIA AUTOLAND AND HGS OPS.

Part: INDICATOR — ACTIVATED (NR 2 IDG FILTER) · airframe 2,888 hrs · 855 cycles

FOUND NR 2 ENG IDG DPI POPPED. ACFT GROUNDED. PERFORMED FIM TASK 24-11, TASK 803. COMPLETED T/C 78273000 FMC/CDU INTERROGATION. NO FAULTS LOGGED. COMPLETED T/C 78424000 IDG SCAVENGE/CHARGE FILTER INSP CHECK. NO CONTAMINATION NOTED. THIS IS DPI RESET NR 1. RESET DECAL MARKED. PERFORMED ENG IDLE LEAK CHECK, NO LEAK NOTED. DPI REMAINS SET. AC OK FOR CONTINUED SERVICE.

Part: FMC — MALFUNCTIONED (RIGHT) · airframe 2,471 hrs · 734 cycles

RT FMC FAILURE OCCURED ENROUTE, DUAL FMC OPS RESTORED MESSAGE DID NOT APPEAR. PULLED & RESET RT FMC CIRCUIT BREAKER, OPS NORMAL, KNOWN ANOMALY. REF MM 34-61-02.

Part: SERVO — FAILED (AUTO THROTTLE) · airframe 2,406 hrs · 716 cycles

INFLIGHT AUTO THROTTLE INOPERATIVE. ACFT GROUNDED. DUPLICATED DEFECT, FOUND NR 2 ASM HARD FAIL. REPLACED NR 2 ASM REF MM22-31-91, OPS CK NORMAL.

Part: WARNING MESSAGE — FALSE ACTIVATION · airframe 2,564 hrs · 763 cycles

DURING FLIGHT VTK FLAG APPEARED ON FOS ND 2 SEPARATE TIMES. BOTH TIMES FLAG DISAPEARED AFTER ABOUT 30 SECOND. UNABLE TO DUPLICATE. BOTH FMCS CHECKED NORMALLY IAW FIM 34-61-00-810-801 AND MM 34-61-00-710-801.

Part: FMC — MALFUNCTIONED (EE BAY) · airframe 2,546 hrs · 756 cycles

DURING FLIGHT, F/O DISPLAY UNIT MOMENTARILY BLANKED AMBER FMC LIGHT ILLUMINATED, AND CONDITIONS QUICKLY RESTORED TO NORMAL OPERATIONS. NO SCRATCH PAD MESSAGES OBSERVED DURING MALFUNCTION. ON LANDING ROLL FMC DISAGREE MESSAGE ILLUMINATED ON DUS & IN SCRATCH PAD FOR APPROXIMATELY 5 SECONDS & THEN EXTINGUISHED. PERFORMED FMC BITE TEST REF FIM 34-61-00, NO FAULTS NOTED. R & R RT FMC AS PRECAUTIONARY. REF. 34-61-02 AND MM 20-10-07. GROUND VERIFICATION SUCCESSFUL. REF. MM 34-61-00.

Part: FMC — FALSE ACTIVATION · airframe 2,562 hrs · 762 cycles

FMC DISAGREE ON GROUND. ACFT GROUNDED. ACCOMPLISHED QRH PROCEDURE. OPS NORMAL.

Part: FMC — FAILED (EE BAY) · airframe 2,573 hrs · 765 cycles

54 MINUTES INTO FLIGHT WITH B AUTOPILOT ENGAGED, AMBER FMC ANNUNCIATOR ILLUMINATED, VTK MESSAGE APPEARED ON F/O DU, AND AUTOPILOT DROPPED OUT OF LNAV/VNAV. AFTER APPROX 15 SECONDS FMC AMBER ANNUNCIATOR EXTINGUISHED & LNAV/VNAV WAS RE-SELECTED ON B AUTOPILOT. NO SCRATCH PAD MESSAGE APPEARED ON EITHER CDU DURING EVENT. NO FURTHER ISSUES FOR REMAINDER OF THE FLIGHT. ACFT GROUNDED. PERFORMED BITE PROCEDURES FOR BOTH FMCS. NO ACTIVE OR INFLIGHT FAULTS. NO FAULTS NOTED AT FMC NR 2 COMPUTER RACK. PWR AND GROUND CHECKS OK. REPLACED RT FMC COMPUTER. OPS TEST OF FMC SYS, OK REF AMM 34-61-02/401 AND 34-61-00/501.

Part: WARNING LIGHT — FALSE ACTIVATION (FMC) · airframe 1,912 hrs · 568 cycles

FMC DISAGREE LIGHT ILLUMINATED ON TAXI OUT. PERFORMED QRH PROCEDURE 11.2 AND SUCCESSFULLY RESTORED FMC TO NORMAL OPS.

Part: WARNING FLAG — ACTIVATED (NR 1 IDG) · airframe 1,770 hrs · 516 cycles

DURING ENGINE OIL SERVICE, FOUND NR 1 IDG DPI EXTENDED. INSPECTED SCAVENGE & CHARGE FILTERS NR 1 IDG IAW AMM 24-11-41-200-801. NO CONTAMINATION NOTED. R & R NR 1 IDG SCAVENGE & CHARGE FILTERS IAW AMM 24-11-41-000-801 & 24-11-41-400-801. LEAK CHECKED OK. RESET NR 1 IDG DPI .

Part: WARNING LIGHT — FALSE ACTIVATION (FMC) · airframe 1,819 hrs · 534 cycles

AFTER PUSHBACK, RT FMC/CDU MENU PAGE REMAINS UP & LOCKED. ACFT GROUNDED. CYCLED PWR TO NR 2 MCDU, OPS RESTORED. NR 2 MCDU CKS OK, REF FIM 34-62, TASK NR 802, RT FMC OPS CHECKED OK, REF 34-61-00, PB501. GROUND VERIFICATION TEST OK.

Part: WARNING LIGHT — FALSE ACTIVATION (FMC) · airframe 1,407 hrs · 411 cycles

FMC DISAGREE FLAG OCURRED ON TAXI OUT. ACFT GROUNDED. PERFORMED QRH PROCEDURE FMC DISAGREE EXTINGUISHED.

Part: MODULATING VALVE — FAULTED (CABIN TEMP) · airframe 1,054 hrs · 307 cycles

CONTROL CABIN ZONE TEMP LIGHT ILLUMINATED ON RECALL LIGHT RESET NORMALLY. CONTROLLERS BITE CHECK BAD WITH CONTROL CABIN TRIM MODULATING VALVE FAULT. ALSO SYSTEM HAD A PREVIOUS WRITE UP. R & R CONTROL CABIN ZONE TRIM AIR MODULATIING VALVE IAW AMM 21-61-21-000-801 AND 21-61-21-400-801. OPS CHECKED GOOD.

Part: WARNING MESSAGE — ILLUMINATED (FMC) · airframe 1,013 hrs · 295 cycles

ON GROUND, AFTER ENGINE START, RECEIVED FMC DISAGREE MESSAGE. ACFT GROUNDED. ACCOMPLISHED QRH PRODURE. NO FURTHER MESSAGES.

Part: FMC — MALFUNCTIONED · airframe 873 hrs · 255 cycles

FMC DISAGREE, ACCOMPLISHED QRH PROCEDURE. OPS NORMAL.

Part: WARNING LIGHT — FALSE ACTIVATION (CABIN TEMP) · airframe 741 hrs · 220 cycles

AFTER START CONT CABIN ZONE TEMP ILLUMINATED WITH MASTER CAUTION, RECALL LIGHT EXTINGUISHED WITH MASTER CAUTION RESET TEMP CONTROL OPS NORMAL. RAN SYSTEM TEST PER MM 21-61-00. RESET SYSTEM SYSTEM OP CHECKED GOOD. NO FAULTS NOTED AT THIS TIME.

Part: PRESSURE SWITCH — MALFUNCTIONED (FUEL SYSTEM) · airframe 613 hrs · 181 cycles

ON TAXI OUT NR 1 ENGINE FILTER BYPASS LIGHT ILLUMINATED. PERFORMED EEC BITE IAW FIM 73-05 TASK 801. FOUND NR 1 ENGINE FILTER BYPASS NO MESSAGE WITH ASSOCIATED FAULT 73-31071 INDICATING A FAULT WITH THE FUEL FILTER BYPASS WARNING SYSTEM. VERIFIED FUEL FILTER DIFF PRESSURE SWITCH BAD PIN 2 TO 3 OPEN PIN 2 TO 1 OPEN. REF SSM 73-31-11. REPLACED NO NR 1 ENG FUEL DIFFERENTIAL PRESSURE SWITCH REF MM 73-34-01. PERFORMED FUEL DIFF PRES SWITCH INST TEST REF MM 73-34-01 NO DEFECTS NOTED. PERF EEC TEST TASK 73-21-00-700-804 F00, NO DEFECTS NOTED. PERFORMED IDLE POWER LEAK CHECK REF MM 71-00-00-700-801-F00, NO LEAKS NOTED.

Part: CONTROL PANEL — DEFECTIVE (WEATHER RADAR) · airframe 36 hrs · 20 cycles

WITH CAPTAIN RADAR IN MANUAL & WX CORRECT RADAR RETURN AT 10 DEG NOSE LOW TILT DISPLAYED ON MAP. HOWEVER TILT KNOB SHOWS ONLY 4 DEG NOSE LOW TILT. VERIFIED FAULT. REPLACED WXR CONT PNL WITH SERVICABLE ONE. INSTALLATION TEST PASSED. REF M/M 34 43 91 400 801.

Part: CONTROLLER — MALFUNCTIONED (WEATHER RADAR) · airframe 19 hrs · 16 cycles

WX RADAR WORKS NORMALLY EXCEPT WHEN AUTO IS DESELECTED AND TRANSFER BUTTONS ARE DESELECTED THE LEFT TILT KNOB INDEX DOES NOT AGREE WITH ND DISPLAY ON CAPT'S ND. AFTER CHECKING TILT AND GROUND RETURNS WITH RIGHT COPILOT KD DISPLAY THE RIGHT INDEX KNOB NUMBER AGREES WITH THE COPILOT ND DISPLAY TILT NUMBER BUT THE CPT ND TILT READS 0 DEP WHEN LEFT TILT KNOB READS PLUS 4 DEGS. RE INDEXED CAPTS WX RADAR TILT CONTROL TO ZERO DEGREES.

Part: UNKNOWN — MALFUNCTIONED (AC BAY) · airframe 11 hrs · 12 cycles

FWD SUPPLY DUCT TEMPERATURE FLUCUATES AND SPIKES TO 50 DEGREE WITH THE SLIGHTEST ADJUSTMENTS WITH FWD CABIN TEMP CONTROLLER IN AUTO. WILL HOLD 20 DEGREE WITH THE KNOB IN THE 9 O'CLOCK POSITION BUT ANY ADJUSTMENT UPWARD RESULTS IN A RAPID INCREASE TO 50 DEGREE PLUS. WORKS NORMAL IN "OFF" POSITION. DUPLICATED RUNAWAY "FWD" SUPPLY DUCT TEMP. BOTH BITE TESTS ON BOTH CONTROLLERS SHOWED "CABIN SENSOR" FAULT. CLEARED FAULTS. RAN BOTH PACKS AND TRIED SEVERAL DIFFERENT SETTINGS ON ALL TEMP SELECTORS ALL APPEAR NORMAL. REF MM 21 61 00. GROUND VERIFICATION GOOD.

Part: LANYARD — OUT OF POSITION (CABIN) · airframe 15 hrs · 14 cycles

FORWARD SUPPLY DUCT UNABLE TO CONTROL IN AUTO. "DID NOT" ADJUST CONTROLLER SPIKED TO 60 DEG C. RAN PACKS AND VERIFIED TEMP CONTROL ISSUES W/ FWD CABIN TEMP. FOUND NO AIRFLOW INTO FWD CABIN SENSOR AIR INLET GRILLE AND NO SOUND FROM FAN. LOWERED ROW 1 DEF PSU AND VISUALLY INSPECTED FWD CABIN TEMP SENSOR FAN AND FOUND FWD CABIN TEMP SENSOR PANEL SAFETY LANYARD INTERMITTENTLY TOUCHING FAN BLADES STOPPING FAN AND NO AIR FLOW ACROSS CABIN SENSORS. UPON MOVING SAFETY LANYARD FAN FREELY RAN NORMAL. REPOSITIONED LANYARD AWAY FROM FAN. RAN PACKS W/DIFFERENT TEMP SETTINGS, OPS NML. TEMP CNTLRS BITE TEST AND CABIN TEMP CNTL AND IND OPERATIONAL TEST NML REF. 21 61 00.

Part: LENS — DAMAGED (EMERGENCY LIGHT)

DURING AN A-CHECK IN MCN, THE EMERGENCY EXIT LIGHT LENS AT ROW 1 WAS FOUND NEEDING REPLACEMENT. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY EXIT LIGHT LENS AT ROW 1. (M)

Part: SERVO VALVE — MALFUNCTIONED (RT ENG PROP)

DUIRNG INITATION OF DESCENT FROM ATL-VPS, THE CREW EXPERIENCED A SURGE IN THE RIGHT ENGINE FROM 65 PERCENT TORQUE TO 35 PERCENT TORQUE AND BACK UP. NP WENT FROM 77-80 PERCENT PLUS. AT 100 PERCENT OVERRIDE THE NP WENT FROM 98-101.9 PERCENT. THE AIRCRAFT BEGAN TO YAW AND THE ENGINE FLUCTUATIONS WERE QUICK AND GETTING WORSE. THE CREW SHUTDOWN THE RIGHT ENGINE AND AN EMERGENCY WAS DECLARED. THE AIRCRAFT LANDED SAFELY IN VPS. MAINTENANCE REMOVED AND REPLACED THE RIGHT ENGINE PROPELLER SERVO VALVE. OPERATIONAL AND LEAK CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHT)

DURING A GROUND INSPECTION IN ATL, BOTH MIDDLE EMERGENCY CEILING LIGHTS AND HALF OF THE EMERGENCY FLOOR LIGHTS WERE FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE FORWARD MIDDLE EMERGENCY LIGHTS POWER SUPPLY. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: COVER — BROKEN (EMERGENCY LIGHT)

FLT 4297 - DUIRNG A GROUND INSPECTION IN ATL, THE EMERGENCY EXIT LIGHT COVER AT ROW 1-A/B WAS FOUND BROKEN. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY EXIT LIGHT COVER/LENS ASSEMBLY AT ROW 1-A/B. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: LAMP — BURNED OUT (EMERGENCY LIGHT)

DURING A HANGAR CHECK IN MCN, THE PASSENGER DOOR EMERGENCY LIGHT WAS FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE PASSENGER DOOR EMERGENCY LIGHT LAMP. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: SEAT TRACK — CORRODED (FUSELAGE)

DURING A C-CHECK IN BNA, THE LEFT SEAT TRACK ON TOP AND BOTTOM BETWEEN FS 39 TO FS 41 WAS FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT SEAT TRACK BETWEEN FS 39 TO FS 41 IAW SRM 51-25-02 AND 51-25-04. (M)

Part: SEAT TRACK — CORRODED (FUSELAGE)

DURING A C-CHECK IN BNA, THE LEFT AND RIGHT SEAT TRACKS ON THE TOP AND BOTTOM BETWEEN FS 36 TO FS 39 WERE FOUND TO BE CORRODED BEYOND LIMITS. MAINTENANCE REMOVED AND REPLACED THE LEFT AND RIGHT SEAT TRACKS BETWEEN FS 36 TO FS 39 IAW SRM 51-25-02 AND 51-25-04. (M)

Part: LIGHT — INOPERATIVE (CABIN)

DURING HANGAR MAINTENANCE IN MCN, THE PASSENGER DOOR EMERGENCY LIGHT WAS FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE PASSENGER DOOR EMERGENCY LIGHT ASSEMBLY. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: POWER SUPPLY — DISCHARGED (CABIN)

FLT 4212 - DURING GROUND INSPECTION IN ATL, THE LEFT FORWARD EXTERIOR EMERGENCY LIGHT AND EMERGENCY FLOOR TRACK LIGHTING BETWEEN ROWS 7-12 WERE FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY POWER SUPPLY UNIT. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: POWER SUPPLY — DISCHARGED (CABIN)

FLT 4212 - DURING GROUND INSPECTION IN ATL, THE FORWARD EXIT SIGN OVER THE CABIN DOOR AND THE AFT EMERGENCY EXIT SIGNS WERE FOUND TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY LIGHTING POWER SUPPLY UNITS. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: POWER SUPPLY — DISCHARGED (CABIN)

FLT 4309 - DURING GROUND INSPECTION IN ATL, THE AIR STAIR DOOR EMERGENCY LIGHT WAS INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE POWER SUPPLY FOR THE AIR STAIR DOOR EMERGENCY LIGHT. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: LIGHT — INOPERATIVE (CABIN)

DURING HANGAR MAINTENANCE IN MCN, THE PASSENGER DOOR EMERGENCY LIGHTS WERE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED TEH PASSENGER DOOR EMERGENCY LIGHT ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)

Part: CONTACTOR — FAILED (COCKPIT)

FLT 4085 - DURING TAXI IN ATL, CREW REPORTED EMERGENCY LIGHTS IN CABIN CAME ON WHEN THE COCKPIT SWITCH WAS IN THE ARM POSITION DURING HOTEL MODE AND SINGLE TAXI. THE EMERGENCY LIGHTS WENT OUT WHEN NR 1 GENERATOR CAME ONLINE. MAINTENANCE REMOVED AND REPLACED CONTACTOR 12PU. OPERATIONAL CHECKS NORMAL. AIRCRAFT OK FOR SERVICE. (M)

Part: LIGHT — MALFUNCTIONED (CABIN)

DURING TAXI IN ATL, THE TWO MINUTE EMERGENCY LIGHTS CAME ON FOR NO REASON AND WOULD NOT EXTINGUISH. MAINTENANCE COULD NOT DUPLICATE THE EVENT. TWO MINUTE EMERGENCY LIGHTS OPERATE NORMALLY. AIRCRAFT RETURNED TO SERVICE. (M)

Part: FRAME — CRACKED (CABIN)

DURING C-CHECK, FOUND CRACK IN FRAME 28. MAINTENANCE REPAIRED USING EO 72-53-0097 WHICH OUTLINES PROCEDURES FOR CRACK REPAIR. OPERATIONAL CHECKS WERE GOOD. AIRCRAFT WILL RETURN TO SERVICE AFTER COMPLETION OF C-CHECK. (M)

Part: POWER SUPPLY — INOPERATIVE (CABIN)

DURING INSPECTION, FOUND AFT EMERGENCY LIGHT OVER AFT FLIGHT ATTENDANTS SEAT INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY POWER SUPPLY. OPERATIONAL CHECKS WERE GOOD. AIRCRAFT RETURNED TO SERVICE. (M)

Part: TRANSFORMER — INOPERATIVE (PSU) · airframe 9,806 hrs

FLT 4210 - ON CLIMB-OUT OUT OF ATL AT 10,000 FEET, THE FLIGHT ATTENDANT CALLED THE COCKPIT AND REPORTED SMOKE COMING FROM THE OVERHEAD BIN AT ROW 11. AT THAT POINT, BOTH THE FIRST OFFICER AND CAPTAIN SMELLED AN ELECTRICAL SMOKE ODOR. THE CAPTAIN DECLARED AN EMERGENCY AND LANDED SAFELY IN ATL. MAINTENANCE REMOVED AND REPLACED THE PSU TRANSFORMER. OPERATIONAL CHECKS WERE GOOD. AIRCRAFT RETURNED TO SAFETY. (X)