N60312

Part: SOCKET — SHORTED (ROW 18 ABC) · airframe 57,117 hrs · 29,818 cycles

SMOKE BEGAN COMING FROM THE FLOURESCENT SIDEWALL LIGHTING AT ROWS 18-19 ABC WHILE EN ROUTE FROM TUS TO IAH. THE HALON FIRE EXTINGUISHER WAS USED, LIGHTS WERE TURNED OFF, AND CIRCUIT BREAKERS WERE PULLED. THE SMOKE SUBSEQUENTLY CLEARED AND THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT. MAINTENANCE FOUND NO EVIDENCE OF FIRE. MAINTENANCE FOUND THE LIGHT SOCKET AT ROW 18 ABC SHORTED. THE LIGHT SOCKET WAS REMOVED AND REPLACED. IN ADDITION, THE FIRE EXTINGUISHER WAS REPLACED.

Part: FIRE LOOP — DAMAGED (APU) · airframe 54,372 hrs · 28,365 cycles

THE APU FIRE LIGHT ILLUMINATED DURING CLIMBOUT OF DEN. THE FIRE HANDLE WAS PULLED AND THE FIRE BOTTLE WAS DISCHARGED. THE LIGHT WENT OUT, BUT ILLUMINATED AGAIN WITH THE FIRE BELL SOUNDED. THE AIRCRAFT WAS RETURNED TO DEN WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE APU COMPARTMENT AND APU, AND FOUND NO EVIDENCE OF FIRE. THE FORWARD SIDE OF BULKHEAD IN TAIL COMPARTMENT WAS ALSO INSPECTED WITH NO DISCREPANCIES FOUND. THE ENGINE FIRE CONTROL MODULE WAS REMOVED AND REPLACED. THE APU LOWER FIRE DETECTION LOOP WAS ALSO REPLACED DUE TO A DAMAGED LOOP. THE APU FIRE BOTTLE WAS REMOVED AND REPLACED IAW MM 26-22-11, PAGE 401-406. AN OPERATIONAL CHECK OF THE APU FIRE PROTECTION SYSTEM WAS GOOD.

Part: FRAME — CRACKED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND A .5 INCH CRACK IN RT MAIN FRAME ANGLE AT STA 616 FLOOR LINE. A STIFFENING ANGLE REPAIR WAS INSTALLED IAW ECRA 5311-01157.

Part: SUPPORT ANGLE — GOUGED (LT MLG) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND LT MLG STAB LINK SUPPORT ANGLES GOUGED. THE ANGLES WERE REMOVED AND REPLACED IAW SRM 51-10-02.

Part: FRAME — CRACKED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND A 1 INCH CRACK IN LT MAIN FRAME ANGLE AT STA 616 BELOW FLOOR LINE, WL 200. REPAIRED FRAME IAW ECRA 5311-01154.

Part: STRINGER — GOUGED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND A GOUGE IN STRINGER AT STA 1120, RT, IN APU COMPARTMENT. THE DAMAGED SECTION OF STRINGER WAS REMOVED AND A NEW SECTION OF STRINGER WAS INSTALLED IAW SRM 51-40-02.

Part: FLOORBEAM — CORRODED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND FLOORBEAM CORRODED ON UPPER SURFACE AT STA 1006 BETWEEN RBL 24 AND RBL 32 AND RBL 27 INTERCOSTAL BS 1006-1016. A REPAIR WAS INSTALLED IAW SRM 53-00-51, FIGURE 202, PAGE 207-211.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND THE LT I/B SEAT TRACK CORRODED BETWEEN BS 907 AND 947. A NEW SEAT TRACK SECTION WAS INSTALLED IAW SRM 53-00-52, FIGURE 204.

Part: STRINGER — CORRODED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND STRINGER 27L CORRODED AT STA 1006. THE STRINGER WAS REPAIRED IAW SRM 53-00-03, FIGURE 201.

Part: ANGLE — CORRODED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND R-2 DOOR THRESHOLD Z-ANGLE CORRODED AT STA 937. THE ZEE ANGLE WAS REMOVED AND REPLACED IAW SRM 51-40-02.

Part: STRINGER — CORRODED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND STRINGER 26R CORRODED AT STA 1006-1016. THE STRINGER WAS REMOVED AND REPLACED IAW SRM 5-40-2.

Part: ANGLE — CORRODED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND L-1 DOOR JAMB ZEE ANGLE CORRODED FROM BS 306-344. THE ZEE ANGLE WAS REPLACED IAW SRM 51-40-02.

Part: CHANNEL — CORRODED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND RT AFT LAV FORWARD WALL LOWER U-CHANNEL CORRODED AT STA 986.5 - 1006. THE U-CHANNEL WAS REPLACED IAW SRM 51-40-02.

Part: FRAME — CRACKED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

MAINTENANCE FOUND THE INNER CHORD ON THE LT FRAME AT STA 616 CRACKED. THE AREA WAS REPAIRED IAW ECRA 5311-01154.

Part: WEB — CRACKED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND BOTTOM SURFACE OF R-2 DOOR THRESHOLD WEB CORRODED AT STA 986.5 TO 990. THE LOWER SILL WEB WAS REMOVED AND REPLACED IAW SRM 51-40-02.

Part: GALLEY TRACK — CORRODED (FUSELAGE) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND GALLEY TRACK CORRODED BETWEEN BS 328 AND 360 AT RBL 44. THE FLOOR TRACK WAS REMOVED AND REPLACED IAW SRM 51-10-2.

Part: GALLEY TRACK — CORRODED (BS) · airframe 54,249 hrs · 28,292 cycles

INSPECTION FOUND CORROSION ON GALLEY TRACK BETWEEN BS 277 AND 294, RBL 44. THE GALLEY TRACK WAS REMOVED AND REPLACED IAW SRM 51-10-2.

Part: SKIN — CRACKED (STA 373) · airframe 50,616 hrs · 26,345 cycles

INSPECTION FOUND A 3/8" CRACK IN FUSELAGE SKIN AT STA 373, S28, E&E EXHAUST BAY CUTOUT. REPAIRED IAW ECRA 5330-02894.

Part: WEB — GOUGED (STA 338) · airframe 50,616 hrs · 26,345 cycles

INSPECTION FOUND A GOUGE IN WEB ON R/H SIDE OF E&E DOOR JAMB STRUCTURE AT STA 338, RBL 15. A DOUBLER WAS INSTALLED IAW SRM 51-70-13.

Part: KEELBEAM — CORRODED (FUSELAGE) · airframe 50,616 hrs · 26,345 cycles

INSPECTION FOUND LT WHEEL KEEL BEAM O/B LOWER CHORD CORRODED AT STA 715-724. THE KEEL BEAM WAS REPAIRED IAW ECRA 5310-03740.

Part: WEB — CRACKED (STA 178) · airframe 50,616 hrs · 26,345 cycles

INSPECTION FOUND A 1.25" AND 1" CRACK IN CENTER WEB OF FORWARD BULKHEAD AT STA 178, LBL 5.7, BETWEEN WL 195 AND 207. THE CENTER WEB WAS REPLACED IAW EA 5310-03040 AND WORK CARD 99-5310-1-0037.

Part: SKIN — GOUGED (STA 876-885) · airframe 50,616 hrs · 26,345 cycles

INSPECTION FOUND FUSELAGE SKIN GOUGED BELOW FORWARD END OF DORSAL FIN ON R/H SIDE AT STA 876-885, RBL 5, S1-S2R. THE GOUGED AREA WAS REMOVED AND A DOUBLER WAS INSTALLED IAW SRM 53-00-01, FIGURE 201.

Part: TORQUE TUBE — CORRODED (R-2 DOOR) · airframe 50,616 hrs · 26,345 cycles

INSPECTION FOUND R-2 DOOR FUSELAGE TORQUE TUBE CORRODED. THE TORQUE TUBE WAS REMOVED AND REPLACED IAW MM 52-41-41.

Part: STIFFENER — CORRODED (BS 1016)

INSPECTION FOUND CORROSION ON CENTERLINE DOUBLE STIFFENER JUST AFT OF BS 1016 AT BOTTOM OF APB FORWARD SIDE. A NEW CHANNEL SECTION AND DOUBLERS WERE INSTALLED IAW SRM 53-80-08 AND 51-70-11.

Part: SKIN — CRACKED (BS 660-670)

INSPECTION FOUND A .375 INCH CRACK IN THE RT LOWER KEEL BEAM SKIN PANEL BETWEEN STA 660 AND 670. A REPAIR WAS INSTALLED IAW ECRA 5330-02844.

Part: FLOORBEAM — CORRODED (BS 986.5)

INSPECTION FOUND FLOORBEAM CORRODED AT STA 986.5. THE CORRODED SECTION OF FLOORBEAM WAS REMOVED AND REPLACED IAW ECRA 5310-03851.

Part: GUSSET — CRACKED (BS 1130)

INSPECTION FOUND A .5 INCH CRACK IN TORQUE BOX GUSSET AT STABILIZER CENTER SECTION, STA 1130. THE TORQUE BOX GUSSET WAS REMOVED AND REPLACED IAW SRM 51-10-2.

Part: SKIN — DELAMINATED (LT AILERON)

INSPECTION FOUND UPPER SURFACE OUTBOARD MID AREA OF LT AILERON DELAMINATED. THE AILERON WAS REPAIRED IAW ECRA 5761-01017.

Part: ANGLE — CORRODED (R-1 DOORWAY)

INSPECTION FOUND R-1 DOOR THRESHOLD FLOOR ATTACH ANGLE CORRODED. THE ANGLE WAS REMOVED AND REPLACED IAW SRM 51-10-2.

Part: TRACK — CORRODED (BS 290)

INSPECTION FOUND GALLEY TRACK CORRODED AT STA 290, RBL 45. THE TRACK WAS REMOVED AND A NEW TRACK WAS INSTALLED IAW SRM 51-10-2.

Part: ANGLE — CORRODED (BS 914-1006)

INSPECTION FOUND L-2 PASSENGER DOOR THRESHOLD Z-ANGLE CORRODED FROM STA 914 TO 1006. THE ANGLE WAS REMOVED AND A NEW ANGLE WAS INSTALLED IAW SRM 51-10-2.

Part: FLOORBEAM — CORRODED (BS 328)

INSPECTION FOUND CABIN FLOORBEAM CORRODED AT STA 328. THE UPPER SECTION OF FLOORBEAM WAS REMOVED AND REPLACED IAW SRM 53-10-51.

Part: FLOORBEAM — CORRODED (BS 294.5)

INSPECTION FOUND LOWER SIDE OF FLOORBEAM CORRODED AT NUT PLATE, STA 294.5, LBL 48. THE CORRODED SECTION WAS REMOVED AND A NEW SECTION OF FLOORBEAM WAS INSTALLED IAW SRM 53-10-51, FIGURE 205.

Part: SEAT TRACK — CORRODED (BS 344-362)

INSPECTION FOUND LEFT O/B SEAT TRACK CORRODED AT STA 344 TO 362. THE SEAT TRACK WAS REMOVED AND REPLACED IAW SRM 51-10-2.

Part: FLOORBEAM — CORRODED (BS 967)

INSPECTION FOUND TOP SIDE OF FLOORBEAM CORRODED AT STA 967, RBL 20 AND LBL 30. THE CORRODED SECTION OF FLOORBEAM WAS REMOVED AND A REPAIR SECTION WAS INSTALLED IAW SRM 53-00-51.

Part: FLOORBEAM — CORRODED (BS 312)

INSPECTION FOUND CABIN FLOORBEAM CORRODED AT STA 312, LBL 17 TO RBL 38. INSTALLED REPAIR IAW SRM 53-00-51.

Part: FRAME — CRACKED (BS 500)

INSPECTION FOUND A 4 INCH CRACK AT FASTENER HOLE OF FRAME AT STA 500, STRINGER 14R. THE CRACKED SECTION OF FRAME WAS CUT OUT. REPAIR DOUBLERS AND FILLER WERE INSTALLED IAW SRM 53-00-07, FIGURE 201.

Part: SUPPORT — CRACKED (NR 1 NACELLE)

INSPECTION FOUND A 3 INCH CRACK IN NR 1 ENGINE DIAGONAL FRAME SUPPORT AT NACELLE STA 315 ON RT SIDE. THE DIAGONAL FRAME SUPPORT WAS REPLACED IAW SRM 51-40-02.

Part: STRINGER — CRACKED (BS 500)

INSPECTION FOUND A .5 INCH CRACK IN STRINGER 16L JUST AFT OF STA 500C. THE STRINGER WAS REPAIRED IAW SRM 53-00-03.

Part: FLOORBEAM — CORRODED (BS 1006)

INSPECTION FOUND FLOORBEAM CORRODED AT STA 1006, LBL 30 TO RBL 11. THE CORRODED SECTION OF FLOORBEAM WAS REMOVED, A REPAIR SECTION AND SPLICE WAS INSTALLED IAW SRM 53-00-51, FIGURE 202.

Part: SKIN — CRACKED (FUSELAGE)

INSPECTION FOUND A .5 INCH CRACK IN FUSELAGE SKIN AT UPPER O/B CORNER OF L-1 WINDSHIELD. REPAIRED SKIN IAW ECRA 5330-02838.

Part: FRAME — CRACKED (BS 500)

INSPECTION FOUND A 1 INCH CRACK IN BELTFRAME AT STRINGER 16R AFT OF STA 500C. THE CRACKED SECTION OF FRAME WAS REMOVED AND A REPAIR WAS INSTALLED IAW SRM 53-00-03, DETAIL VII.

Part: FLOORBEAM — CORRODED (BS 294)

INSPECTION FOUND CABIN FLOORBEAM CORRODED AT STA 294, RBL 35. THE CORROSION WAS REMOVED AND A NEW SECTION OF FLOORBEAM WAS SPLICED IN IAW SRM 53-10-51, FIGURE 205.

Part: FLOORBEAM — CORRODED (BS 1016)

INSPECTION FOUND FLOORBEAM CORRODED AT STA 1016. REPAIRED IAW ECRA 5310-03851.

Part: STRINGER — CRACKED (BS 907)

INSPECTION FOUND A 2 INCH CRACK IN STRINGER 4L AT STA 907. THE STRINGER WAS REMOVED AND REPLACED IAW SRM 51-10-2.

Part: TORSION LINK — BROKEN (NLG)

ON LANDING ROLL AT APPROXIMATELY 70 KNOTS WITH NORMAL NOSE WHEEL TOUCHDOWN, A VIOLENT SHIMMY WAS FELT ON RUNWAY UNTIL AIRCRAFT MADE A COMPLETE AND SAFE STOP. THERE WAS NO NOSE WHEEL STEERING CAPABILITY. THE AIRCRAFT WAS TOWED TO THE GATE. MAINTENANCE FOUND THE UPPER AND LOWER NLG TORSION LINKS BROKEN. BOTH TORSION LINKS AND THE NOSE WHEEL STEERING COLLAR WERE REMOVED AND REPLACED IAW MM 32-21-11 AND 32-51-61. ALSO, BOTH NOSE WHEEL ASSEMBLIES WERE REPLACED. THE NLG INNER CYLINDER WAS REPLACED DUE TO HEAT DAMAGE CAUSED BY EXCESSIVE NOSE GEAR VIBRATION.

Part: CIRCUIT CARD — INOPERATIVE (E/E COMPT)

THE LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. THE GEAR LEVER WOULD NOT GO PAST THE OFF POSITION. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE COULD NOT DUPLICATE THE PROBLEM. THE PROBLEM WAS REPEATED ON A SUBSEQUENT FLIGHT. GEAR OVERRIDE WAS USED AND THE GEAR RETRACTED. MAINTENANCE REMOVED AND REPLACED THE M990 CIRCUIT CARD PER MM 32-09-20. ALSO, THE R276 RELAY WAS REPLACED DUE TO STICKING. IN ADDITION, THE AIR SAFETY SENSOR/TARGET CLEARANCE WAS ADJUSTED PER MM 32-09-01. A RETRACTION TEST WAS PERFORMED AND NO DEFECTS WERE NOTED.

Part: SKIN — CRACKED (LT PYLON)

INSPECTION FOUND A 2 INCH CRACK IN LEFT ENGINE PYLON SKIN AT PANEL NR 5724. REPAIRED IAW ECRA 5430-01204.

Part: FLOORBEAM — CORRODED (BS 312)

INSPECTION FOUND FLOORBEAM CORRODED AT STA 312 BETWEEN RBL 15 AND LBL 12. THE FLOORBEAM WAS REPLACED IAW SRM 53-10-51.

Part: FRAME — CORRODED (BS 1006)

INSPECTION FOUND CORRODED AT STA 1006, WL 200, RT SIDE. THE FRAME WAS REPAIRED IAW SRM 53-00-07.

Part: SKIN — CRACKED (BS 727)

INSPECTION FOUND A 1 INCH CRACK IN FUSELAGE SKIN AT NR 3 VHF ANTENNA, STA 727. A DOUBLER WAS INSTALLED IAW SRM 53-00-01, PAGE 204-206.

Part: SKIN — BENT (R 2 DOOR)

INSPECTION FOUND R-2 DOOR SKIN BENT ON FORWARD SIDE AT UPPER HINGE CUTOUT. A DOUBLER WAS FABRICATED AND INSTALLED IAW SRM 52-00-01.

Part: SKIN — CRACKED (NR 1 LE SLAT)

INSPECTION FOUND A 1 INCH CRACK BETWEEN TWO RIVETS IN LT WING NR 1 SLAT SKIN NEAR ACTUATOR. A DOUBLER WAS INSTALLED IAW BOEING DRAWING NR 65C30133.

Part: SKIN — PUNCTURED (BS 312)

THE FUSELAGE SKIN WAS PUNCTURED AND A SHEAR TIE WAS GOUGED AT STA 312, STRINGER 19 TO 20R, WHEN AIRCRAFT WAS STRUCK BY A TUG DURING AN S-CHECK. THE SKIN WAS REPAIRED IAW SRM 53-00-01, FIGURE 210. THE SHEAR TIE WAS REPAIRED IAW SRM 53-00-07, FIGURE 205.

Part: LOGIC CARD — INOPERATIVE (LANDING GEAR)

THE LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF FROM IAH. THE GEAR HANDLE WOULD NOT MOVE PAST THE OFF TO THE UP POSITION. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE M991 AIR SENSING SQUAT SWITCH CARD AT FAULT. THE M991 CARD WAS REMOVED AND REPLACED. THE CARD TESTED GOOD IAW MM 32-09-20, PAGE 416.

Part: OVEN FAN — FAILED (AFT GALLEY)

SMOKE APPEARED IN THE AFT GALLEY DURING TAXI OUT. THE AIRCRAFT WAS RETURNED TO THE GATE WITHOUT INCIDENT. MAINTENANCE FOUND THE NR 1 AFT GALLEY OVEN FAN FROZEN AND OVERHEATED. THE NR 1 AFT GALLEY OVEN WAS REMOVED AND REPLACED, OPERATION OF THE OVEN CHECKED GOOD. ALL AFT GALLEY OVENS WERE OPERATED WITH NO DISCREPANCIES NOTED.

Part: SILL PLATE — DAMAGED (AFT CARGO PIT)

FLT NR 0653 - CLE - REPAIRED AFT CARGO PIT SILL PLATE HAD .75 INCH HOLE PER ECRA 5310-01126 STOPPED DRILLED AND SEALED TO BE WELDED WITHIN 100 FLT HOURS. (M)

Part: FLOOR BEAM — CORRODED (BS 344)

PAE - INSPECTION FOUND CORROSION ON FLOOR BEAM AT BS 344, LBL 15 TO RBL 5. REMOVED CORRODED CHORD AND INSTALLED NEW CHORD IAW SRM 51-20-01, 51-40-02, 51-40-08, 51-70-09, AND MM 51-21-41. (M)

Part: FLOOR BEAM — CORRODED (BS 294.5)

PAE - INSPECTION FOUND CORROSION AND ELONGATED HOLES ON TOP OF FLOOR BEAM CHORD AT BS 294.5, LBL 19 TO RBL 9, WL 208. THE CHORD WAS REMOVED AND REPLACED IAW SRM 53-10-51, 51-40-02, 51-20-01, 51-40-08, AND 51-70-09. (M)

Part: INTERCOSTAL — CORRODED (BS 1011-1013)

PAE - INSPECTION FOUND CORROSION ON BOTTOM INTERCOSTAL AT STATION 1011-1013, WL 208, RBL 6. THE INTERCOSTAL WAS REMOVED AND A NEW ONE WAS INSTALLED IAW SRM 51-10-2 AND 51-40-2. (M)

Part: FLOOR BEAM — CORRODED (BS 986.5)

PAE - INSPECTION FOUND CORROSION ON FLOOR BEAM UPPER CHORD AT RBL 5-10.5, WL 208, STATION 986.5. REMOVED CORRODED SECTION OF CHORD AND REPAIRED WITH NEW CHORD SPLICE PER SRM 53-60-51, MM 51-21-41, 51-21-99, AND 51-10-02. (M)

Part: BEAM — CORRODED (BS 996-1006)

PAE - INSPECTION FOUND CORROSION ON BEAM AT STATION 996-1006, LBL 10, WL 208. REMOVED AND REPLACED BEAM IAW SRM 51-40-02. (M)

Part: BEAM — CORRODED (BS 1006-1016)

PAE - INSPECTION FOUND CORROSION ON BEAM AT STATION 1006-1016, LBL 7, WL 208. THE BEAM WAS REMOVED AND REPLACED IAW SRM 51-40-02. (M)

Part: INTERCOSTAL — CORRODED (BS 312-328)

PAE - INSPECTION FOUND CORROSION ON INTERCOSTAL FROM BS 312-328, LBL 12, WL 208. THE CORRODED SECTION WAS REMOVED AND A NEW SECTION WAS INSTALLED IAW SRM 51-10-02, 51-21-41, 51-21-99, AND 51-10-2. (M)

Part: CHORD — CORRODED (BS 1016)

PAE - INSPECTION FOUND CORROSION ON FLOOR BEAM UPPER CHORD AT BS 1016, WL 208, RBL 16-23. THE UPPER CHORD WAS REMOVED AND REPLACED IAW SRM 51-40-02. (M)

Part: TOGGLES — BROKEN (LT TE FLAP)

DEN - FLT 1431 - THREE TO FOUR UNITS OF RIGHT WING DOWN AILERON WERE REQUIRED TO KEEP WINGS LEVEL WITH FLAPS SET AT 15-25 DEGREES ON APPROACH TO DEN. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND BOTH LT OUTBOARD FLAP TOGGLES BROKEN. BOTH TOGGLES WERE REPLACED AND FLAP OPERATION CHECKED GOOD. (X)