N831L

Part: SWITCH — DAMAGED (POWER PANEL) · airframe 63,277 hrs · 43,012 cycles

AIRCRAFT AIR TURNBACK FOR ALL FUEL QUANTITY INDICATORS INOP IN FLIGHT. FOUND FUEL PANEL POWER SWITCH BUMPER NOT MAKING CONTACT WITH PANEL POWER SWITCH. REPLACED MASTER POWER SWITCH GUARD.

Part: CONE — MISSING (NR 2 ENGINE) · airframe 61,710 hrs · 41,912 cycles

ON ARRIVAL SFO, NR 2 ENGINE TAIL CONE MISSING. REPLACED SAME.

Part: SMOKE DETECTOR — ACTIVATED (LAVATORY)

ON FINAL APPROACH, LAV SMOKE LIGHT ILLUMINATED, F/A SMELLED SMOKE IN RT AFT LAV. INSPECTED RT AFT LAV, NO EVIDENCE OF SMOKE. LIGHTS ALL CHECKED GOOD. REPLACED SMOKE DETECTOR AS A PRECAUTION, TEST GOOD.

Part: STRINGER — CORRODED (BS 950)

FUSELAGE STRINGER S-29L, FS 950F PLUS 10 CORROSION REPAIR. STRINGER 29L WAS FOUND WITH EXTENSIVE CORROSION AROUND STATION 950F. THE CORRODED SECTION OF STRINGER WAS CUT AND REMOVED. A NEW SECTION OF STRINGER WAS SPLICED IN PER ER/A 367879-14, REV B.

Part: CASTING — CRACKED (NR 12 SPOILER)

DRG TPA LTR CHK E1, NR 12 SPOILER ACTUATOR SUPPORT FITTING O/B MOUNT CASTING LWR MOUNT BOLT LOBE BROKEN OFF. REPLACED CASTING PER MM 57-42-0.

Part: LINE — LEAKING (LT MLG DOOR ACT)

SYSTEM 'A' FAILED UPON GEAR RETRACTION PRESSURE WENT TO ZERO QUANTITY WENT TO 1 QT, PERFORMED CKLIST PROCEDURES IAW POM. MAINTENANCE FOUND HYD LINE LEAKING ON LT GEAR DOOR ACTUATOR. REPLACED LINE, SERVICED HYD, ALL CKS NORMAL.

Part: SKIN — CRACKED (BS 540-560)

LFEC INSPECTION OF THE STRINGER 26L SKIN LAP SPLICE BETWEEN FS 480 AND 680 INDICATED A CRACK IN THE LOWER FASTENER ROW OF THE LOWER SKIN PANEL. INTERNAL HFEC INSPECTION CONFIRMED 3 CRACKS BETWEEN FS 540 AND 560. THE CRACKS WERE CUT OUT OF THE SKIN LAP AND REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER PER B727 SRM 53-30-3, FIG 5 AND DOCUMENTED PER ER/A 367107-14AD.

Part: FRAME — CRACKED (SERVICE DOOR)

A .5 INCH CRACK IN DOUBLER RT FWD SVC DOOR AFT FRAME UPPER CORNER. REPAIR PER M/M 52-12-0 FIG 805.

Part: POWER SUPPLY — INOPERATIVE (CABIN)

AFT SECTION OF EMERGENCY LIGHTS INOP FROM ROW 27. REPLACED 2 SOCKETS AND POWER SUPPLY.

Part: COFFEEMAKER — FAILED (FWD GALLEY)

NOTED ELECT SMELL IN FWD GALLEY AREA. REPLACED COFFEEMAKER.

Part: EXHAUST PIPE — CRACKED (MLG WW)

WHILE PERFORMING A POST-REMOVAL INSPECTION OF A GTCP85-98CK APU EXHAUST PIPE (3850089-1), THREE INCH CRACKS WERE NOTED ON EACH MOUNTING FLANGE (TWO CRACKS TOTAL). CAUSE FOR CRACKS IS UNKNOWN. EXHAUST PIPE WAS MODIFIED BY ALLIED- SIGNAL TO SATISFY REQUIREMENTS OF EO 4-69905-3AD (AD 95-07- 03). THE AD REQUIRED THE INSTALLATION OF AN EXHAUST HUB FOR IMPROVED CONTAINMENT CAPABILITY IN CASE OF T-WHEEL FAILURE. TIME SINCE LAST SVI FOR APU: 813 HOURS. EXHAUST PIPE IS SUBJECT TO REPAIR OR REPLACEMENT BY ALLIEDSIGNAL.

Part: WIRE — SHORTED (CABIN)

EMERGENCY EXIT BATT CHARGER C/B POPPING. REPAIRED SHORTED WIRE.

Part: BATTERY — DISCHARGED (CABIN)

R2 DOOR OVERWING EMERGENCY LIGHT INOP. REPLACED BATTERIES.

Part: BATTERY PACK — DISCHARGED (CABIN)

EXTERIOR EMERGENCY LIGHT BETWEEN LT OVERWING EXITS INOP. REPLACED BATTERY PACK, CKS NML.

Part: ANGLE — CRACKED (NR 8 SLAT ACT)

OUTBOARD MOUNT ANGLE CRACKED NR 8 SLAT ACTUATOR. INBOARD MOUNT ANGLE CRACKED NR 8 SLAT ACTUATOR. REPAIRED PER MM 57-20-21 FIG 808.

Part: ANGLE — CRACKED (NR 8 SLAT ACT)

NR 8 SLAT ACTUATOR I/B AND O/B MOUNT ANGLES CRACKED. REPAIRED PER MM 57-20-21 FIG 808.

Part: ANGLE — CRACKED (NR 1 SLAT ACT)

ONE INCH VISIBLE CRACK AT INBD ATTACH ANGLE FOR NR 1 SLAT ACT. INSTALLED DOUBLER PER MM 57020-21 FIG 808.

Part: BATTERIES — DISCHARGED (CABIN)

FOUND ON L/O, R-1 EMEGENCY EXIT LIGHT WOULD NOT TEST. FOUND BATTERIES DEAD. REPLACED SAME, OPS CK OK.

Part: SKIN — GOUGED (RT ELEVATOR)

TWO HOLES PUNCTURED IN STIFFENER ON UPPER SKIN. REPAIRED STIFFENER PER SRM 55-20-3 FIG 3.

Part: SKIN — GOUGED (RT ELEVATOR)

UPPER L/E SKIN GOUGED. REPAIRED SKIN PER SRM 55-20-3 FIG 1.

Part: FRAME — CRACKED (L/H AFT SERVICE)

FWD FRAME CRACKED AT UPPER HINGE. REPAIRED PER SRM 52-40-2 PG 15.

Part: DOOR — CRACKED (LT FUSELAGE)

A .375 INCH VISIBLE CRACK IN UPPER HINGE CUTOUT OF LT AFT SERVICE DOOR. REPAIRED PER SRM 52-40-2 FIG 4.

Part: DOOR — CRACKED (RT FUSELAGE)

RT AFT SERVICE DOOR HAS .375 INCH VISIBLE CRACK IN UPPER HINGE CUTOUT ON FWD FRAME. REPAIRED PER SRM 52-40-2 FIG 4.

Part: WEB — CRACKED (BS 1223)

A .25 INCH CRACK AT LIGHTENING HOLE, TORQUE BOX VERTICAL WEB STA 1223. REPAIRED PER M/M 53-11-0 PG 828.

Part: FIRE DETECTOR — FAILED (AFT LAV)

PILOT REPORT, AFT LAV FIRE DETECTOR GIVES FIRE INDICATION WITH NO EVIDENCE OF FIRE OR SMOKE. REPLACED DETECTOR AFT LAV, TEST NORMAL.

Part: SPAR — CRACKED (RT ELEVATOR)

THE RIGHT HAND ELEVATOR REAR SPAR HAD A CRACK EMANATING .25 INCH FROM THE INBOARD SIDE OF THE SHEAR PLATE, AT THE THIRD FROM INBOARD TAB HINGE FITTING-TO-REAR SPAR ATTACHMENT. CRACK WAS WITHIN THE S/B 55-0087 INTERIM REPAIR 0.250 ALLOWABLE LIMIT ON CRACK LENGTH BEYOND THE END OF THE SHEAR PLATE. THE CRACK WAS STOP DRILLED PER THE S/B 55-0087 REV 1. THE S/B INITIATED THE REQUIRED REPETITIVE INSPECTION AND PERMANENT REPAIR.

Part: BLADE — FAILED (NR 3 ENGINE)

ON TAKEOFF, NR 3 ENGINE FLAMED-OUT, RETURNED PVR. INITIAL INSPECTION FOUND NR 3 TURNBINE BLADES DISINTEGRATED. REPLACED NR 3 ENGINE FOR RETURN TO SERVICE.

Part: TURB BLADES — FAILED (NR 3 ENGINE)

ON ENGINE DISASSY, FOUND ALL 4TH STG TURB BLADES FRACTURED NEAR PLATFORM. UNKNOWN BMOD/FOD NOTED ON 3RD STG TURB BLADE LEADING EDGES. EVIDENCE SUGGESTS THAT THE OBJECT(S) CAUSING THIS DAMAGE, ALSO CAUSED THE 4TH STAGE BLADE FRACTURE.

Part: EEL BATTERIES — DISCHARGED (CABIN)

OVERWING EMERGENCY LIGHT INOP. REPLACED RACK AND BATTERIES, OPERATION NORMAL.

Part: ACTUATOR — RUPTURED (NR 4 SLAT)

AT 5,000 FLT ON DEPT, SYS-A HYD LOW PRESS LIGHT ILLUM WITH FWD PANEL SYS A-LIGHT. SYS-A HYD QTY AND PRESS INDICATES ZERO. EMERGENCY CHECK LIST COMPLETED AND FUEL DUMPED, RETURNED TO DFW. FOUND NR 4 SLAT ACT RUPTURED. REPLACED ACT AND SERVICED HYD TO FULL. NR 4 SLAT ACT LEAKS AND OPN CKS GOOD. NO OTHER LEAKS DETECTED.

Part: ANGLE — CRACKED (FS 1273)

1.5 INCH CRACK IN ANGLE OF FWD TRANSVERSE BEAM OF THE RT TORQUE BOX AT FS 1273. REPAIRED PER DL ERA 301995-14AD.

Part: L/E RIB — CRACKED (NR 4 SLAT)

A .5 INCH CRACK ON NR 4 SLAT L/E RIBS AT I/B AND O/B SIDES OF TRACK. FOUND DURING A-2 LETTER CHECK. REPAIRED PER MM 57-54-0.

Part: AIR DISTR — ODOR (CABIN)

ON APROACH, HAD UNKNOWN NOXIOUS FUMES IN AFT PASSENGER CABIN. MADE EMERGENCY DESCENT, LANDED AGS. VISUALLY INSPECTED CABIN AND CARGO BINS FOR SPILLS, RAN ENGINES AND PRESSURIZED CABIN DID NOT HAVE ANY ODOR. RETURNED TO SERVICE.