N631US

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 78,594 hrs · 11,616 cycles

DURING LINE CHECK, FOUND ZONE-C FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY. OPERATIONAL CHECK GOOD.

Part: MANIFOLD — BROKEN (BLEED SYSTEM) · airframe 78,322 hrs · 11,561 cycles

DURING TAKEOFF ROLL, THE CREW OBSERVED THE NR 3 ENGINE EPR INDICATION DECREASE WITH THE EGT INDICATION RISING INTO THE CAUTION RANGE. THE TAKEOFF WAS ABORTED AT 100 KTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE ENGINE IAW FIM AND FOUND THE 3.5 BLEED MANIFOLD BROKEN. THE BROKEN MANIFOLD AND THE 8TH STAGE CHECK VALVE WERE REPLACED. AN ENGINE RUN TO TAKEOFF POWER WAS THEN PERFORMED WITH INDICATION WITHIN LIMITS.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHT) · airframe 77,267 hrs · 11,434 cycles

DURING LINE CHECK, FOUND 'D' ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK GOOD.

Part: FRAME — CRACKED (FUSELAGE) · airframe 74,493 hrs · 10,961 cycles

DURING H-CHECK A CRACK WAS FOUND IN THE FRAME WEB AT BS 1265. REPAIRED PER EA 66-193812.

Part: SOCKET — BURNED (GALLEY) · airframe 71,790 hrs · 10,543 cycles

DURING FLIGHT, SMOKE EMITTED FROM THE NR 3 RIGHT GALLEY CENTER LIGHT. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. REPLACED LIGHT SOCKET, BALLAST, AND FUSE. OPERATIONAL CHECK GOOD.

Part: POWER SUPPLY — DISCHARGED (CABIN) · airframe 67,899 hrs · 9,997 cycles

DURING LINE CHECK, FOUND EMERGENCY ESCAPE PATH LIGHTING INOPERATIVE IN ZONES 'B' AND 'C'. REPLACED POWER SUPPLY AND BATTERY. OPERATIONAL CHECK NORMAL.

Part: POWER SUPPLY — INOPERATIVE (EMERG LTS) · airframe 67,125 hrs · 9,895 cycles

DURING LINE CHECK, FOUND "C" ZONE EMERGENCY ESCAPE PATH LIGHTING FAILED OPERATIONAL CHECK. REPLACED POWER SUPPLY. OPERATIONAL CHECK NORMAL.

Part: SWITCH — OUT OF ADJUST (SPOILER SYS)

DURING TAKEOFF (KIX), THE TAKEOFF WARNING HORN SOUNDED. AIRCRAFT ABORTED TAKEOFF AND RETURNED TO THE GATE WITHOUT INCIDENT. ADJUSTED THE SPOILER LIMIT SWITCH. OPERATIONAL CHECK GOOD. EXACT PART CAUSING DISCREPANCY TO BE DETERMINED.

Part: SPAR — CRACKED (RT WING)

DURING M CHECK, FOUND CRACK IN UPPER CHORD AND WEB HOLE OPENING ON RIGHT WING UPPER MID SPAR NR 3 MAIN FUEL TANK HOLE. REPAIRED PER EA 66-163365.

Part: FUEL SYSTEM — VENTING (RT WING)

DURING CRUISE, FUEL STARTED VENTING OUT OF THE RIGHT WING TIP. AIRCRAFT DIVERTED TO SEA AND LANDED WITHOUT INCIDENT. PERFORMED LEAK CHECK AND COULD NOT DUPLICATE DISCREPANCY. SPECIFIC PART CAUSING EVENT TO BE DETERMINED.

Part: POWER SUPPLY — INOPERATIVE (CABIN)

DURING LINE CHECK, FOUND B ZONE FLOOR PATH EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY. OPERATIONAL CHECK GOOD.

Part: LIGHTS — INOPERATIVE (CABIN)

DURING LINE CHECK, FOUND EMERGENCY EXIT LIGHTS INOPERATIVE AT DOOR 2L AND ESCAPE SLIDE LIGHT INOPERATIVE AT DOOR 1L, 1R, 2L, 2R, 4L, AND 4R. CHARGED BATTERIES AND REPLACED EMERGENCY LIGHTS, OPERATIONAL CHECK GOOD.

Part: FITTING — BROKEN (BS 1920)

DURING LINE CHECK, FOUND THE LOWER FITTING ON THE RIGHT DOOR POST IN THE AFT CARGO BAY BROKEN. REMOVED AND REPLACED FITTING PER SRM 51-10-01 PG 18, PARA 4.

Part: FITTING — CRACKED (NR 2 PYLON)

DURING P-CHECK, FOUND A CRACK IN THE NR 2 PYLON INBOARD NACELLE STRUT T-FITTING AT NACELLE STATION 300. REPAIRED FITTING (P/N 65B90454-2) PER EA 66-120436.

Part: FLOORBEAM — CORRODED (BS 1740)

DURING P-CHECK, FOUND CORROSION ON THE BS 1740 FLOORBEAM UPPER CHORD AT RBL 58. REPAIRED BEAM (P/N 65B26535-7) PER EA 66-106423.

Part: SPAR WEB — CRACKED (NR 4 PYLON)

DURING P-CHECK, FOUND A 1.5 INCH CRACK IN THE NR 4 PYLON MID SPAR WEB. REPAIRED WEB (P/N 65B90319-8) PER EA 66-120431.

Part: FITTING — CORRODED (TE FORE FLAP)

DURING P-CHECK, FOUND CORROSION ON THE OUTBOARD TRAILING EDGE FORE FLAP INTERIOR SECOND FROM INBOARD ATTACH HOOK FITTING. REPLACED FITTING.

Part: FLOORBEAM — CRACKED (BS 460)

DURING P-CHECK, FOUND A CRACK IN THE BS 460 UPPER DECK FLOORBEAM WEB AT RBL 55. REPAIRED WEB (P/N 65B10933-34) PER EA 66-120426.

Part: GYRO — MALFUNCTIONED (E/E COMPT)

DURING CRUISE, THE AIRCRAFT EXPERIENCED A SUDDEN ROLL AND PITCH UP CONDITION. AIRCRAFT DIVERTED TO ANC AND LANDED WITHOUT FURTHER INCIDENT. REPLACED THE NR 1 INERTIAL NAVIGATION SYSTEM COMPUTER AND AUTO-PILOT ROLL COMPUTER. OPERATIONAL CHECK GOOD.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND ZONE 'E' FLOOR PATH EMERGENCY LIGHTS AND OVERWING EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACKS. OPERATIONAL CHECK GOOD.

Part: SEAL — DAMAGED (CARGO DOOR)

DURING CRUISE, PRESSURIZATION AUTO FAIL LIGHT ILLUMINATED ACCOMPANIED BY A LOSS OF PRESSURIZATION. AIRCRAFT DIVERTED TO MNL AND LANDED WITHOUT INCIDENT. REPLACED AIR/GROUND RELAY R229, RIGHT OUTFLOW VALVE ACTUATOR AND AUTO PRESSURE CONTROLLER. REPAIRED DENT IN FORWARD CARGO DOOR DEPRESSOR SEAL AND OPERATIONAL CHECK GOOD.

Part: TIRE — FLAT (NR 8 MLG)

AFTER FLIGHT 17 TAKEOFF AT JFK, OPERATIONS AT JFK ADVISED DISPATCH THAT TIRE PIECES WERE FOUND ON THE RUNWAY. FLIGHT DIVERTED TO ANC. MAINTENANCE INSPECTED AIRCRAFT AND FOUND THE NR 8 TIRE RECAP MISSING AND FLAT. REPLACED THE NR 7 AND NR 8 MAIN TIRE AND WHEEL ASSEMBLIES. PERFORMED CHECK AND AIRCRAFT RETURNED TO SERVICE.

Part: RIB — DAMAGED (RT WING)

DURING PERIODIC CHECK, THE RIGHT WING LEADING EDGE RIB WAS DAMAGED WHILE INSTALLING THE NR 3 ENGINE STRUT. THE LOWER 'TEE' CHORD WAS BENT. CHORD MATERIAL 1507075-T6 EXTRUSION PER BAC 1505-10042. MADE REPAIR PER EA 66-97904.

Part: SPAR WEB — CRACKED (NR 3 STRUT)

DURING PERIODIC CHECK, FOUND CRACK IN THE MID SPAR WEB OF THE NR 3 ENGINE STRUT STARTING AT A FASTENER NEXT TO THE INBOARD MID SPAR FITTING RUNNING FORWARD AND UNDER THE FITTING. MADE REPAIR PER EA 66-97901.

Part: CHORD — DAMAGED (FUS 460)

DURING PERIODIC CHECK, THE MAIN DECK UPPER FLOOR BEAM WAS FOUND DAMAGED IN THE UPPER SURFACE OF UPPER CHORD FS 460, RBL 59. FLOOR BEAM IS MADE OF 2024-T3511 ALUMINUM. MADE REPAIR PER EA 66-97922.