N911TW

Part: CARGO TRACK — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT IN THE AFT CARGO COMPT THE RT TIE DOWN TRACK FROM STA 1212 TO 1322 WAS CORRODED. INSTALLED FABRICATED TRACK FROM STOCK. TRACK INSTALLED PER SRM 51-30-00. REPLACED FROM STA 1212 TO 1322.

Part: CARGO TRACK — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT IN THE AFT CARGO COMPT FOUND LT FLOOR TRACK CORRODED AT CLIP NUT HOLES AT STA 1222 THRU 1322, TIE DOWN TRACK. REMOVED CORRODED TRACK AND INSTALLED NEW PER SRM 51-30-5 AND SRM 51-30-0. REPLACED TRACK FROM STA 1222 TO 1322.

Part: DOOR FRAME — CRACKED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND APPROX 2 INCH CRACK IN FWD LEFT CABIN OUTER DOOR FRAME, LOWER FWD CORNER BELOW THE DOOR HINGE ASSEMBLY. REPLACED LOWER FWD CORNER OF PAN ASSY PER SRM 51-00 P27 ITEM B.

Part: WEB — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND IN THE AFT CARGO COMPT, STA 1212 TO 1219, BETWEEN LONGERON 27R AND 28R, CORROSION ON BOTTOM SIDE OF UPPER WEB SKIN AND STRUCTURE AFT OF BOTTOM AFT CORNER OF THE C3 CARGO COMPARTMENT. INSTALLED NEW SECTION OF WEB PER SPM 6-70-1. SPLICE INSTALLED PER SRM 51-70-4, PAGE 2, AND FASTENERS AND WEB INSTALLED PER DOUGLAS PRINT 5936442.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND CHAIR TRACK AT LBL 44 INCHES, STA 1088 TO 1309, WAS CORRODED BEYOND LIMITS. REMOVED CORRODED TRACK AND INSTALLED NEW TRACK WITH TRACK SPLICE PER SRM 53-05, FIG 4F, AND BOLTED TRACK DOWN PER SRM 51-30-1.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND CORROSION ON LT CHAIR TRACK AT LBL 54, STA 1282 AND 1174. REMOVED CORROSION BY REPLACING CHAIR TRACK FROM STA 1174 TO 1309, LBL 54 INCHES, PER SPM 6-70-01 AND SRM 51-30-1.

Part: SILL — DAMAGED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND THE AFT CARGO COMPT DOOR SILL OTBD FLANGE HAD MATERIAL REMOVED BEYOND LIMITS, STA 1155 THRU 1212. REPAIRED TWO OUT OF LIMITS AREAS PER SRM 53-05, FIG 63, SHEETS 1 THRU 8.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND CORROSION ON NUMBER 3 CABIN FLOOR TRACK AT LBL 22 INCHES, STA 1096 TO 1309. REPLACED CHAIR TRACK PER SRM 53-05 AND DRAWING CO3580. INSTALLED SPLICE PER SRM 53-05, FIG 4F.

Part: PAN — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND AREA UNDER FWD CABIN GALLEY DRAIN CORRODED ALL AROUND PAN AS VIEWED FROM THE E&E COMPARTMENT. INSTALLED REPAIR DOUBLER PER SRM 53-01, AND INSTALLED NEW FLOOR SUPPORTS PER SPM 6-70-01.

Part: FRAME — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT IN AFT CARGO COMPT FOUND CORROSION ON STA 1309 FORMER, FROM RT LONGERON TO LT LONGERON 25. ACCOMPLISHED SERVICE REWORK PER DRAWING SRO9530057, PARTS 5, 9, 12, AND 25, FOR FORMER SPLICE REPAIR PER SRM 53-03 PAGE 4J, AND TURNOVER CARDS.

Part: BEAM — CRACKED (L1 DOOR) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT ON THE FWD LT PASSENGER DOOR, THE NR 6 DOOR BEAM WAS CRACKED 4 INCHES BELOW BAYONET FITTING. REPLACED THE NR 6 BEAM PER MM AND SRM 51-00, PAGE 27 ITEM B.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND CORROSION ON FLOOR SUPPORT AT RBL 44, STA 180 TO 200. INSTALLED NEW FLOOR SUPPORT PER SRM 51-30-7 AND SPM 6-70-01.

Part: WEB — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND CORROSION ON RT FLOOR MEMBRANE AT STA 1297 TO 1309, BETWEEN RBL 44 IN AND RBL 54 IN TRACKS. INSTALLED REPAIRED WEB PER SRM 53-05, FIG 96.

Part: FRAME — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND CORROSION ON AFT TOP OF FORMER, 9 INCHES LBL TO 21 IN LBL. REMOVED CORROSION FROM FORMER STA 1322, LBL 9 IN TO LBL 21 IN. SPLICED NEW SECTION AT STA 1322 LONGERON 29L TO 29R PER SRM 53-03, FIG 2A. CORROSION REMOVED PER SPM 6-80-01 AND TREATED PER SRM 51-10-3.

Part: FRAME — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND CORROSION ON AFT TOP OF FORMER LOCATED 9 INCHES LBL TO 21 IN LBL. REMOVED CORROSION FROM FORMER STA 1322, LBL 9 IN TO LBL 21 IN AND SPLICED NEW SECTION LONGERON 29L TO 29R, PER SRM 53-03 FIG 2A.

Part: LONGERON — CRACKED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT FOUND CRACK IN LONGERON 4L AT ATTACH POINT OF LONGERON TO STA 160 FORMER, OTBD FASTENER. REPLACED LONGERON PER SPM 6-70-01.

Part: ATTACH ANGLE — CORRODED (FUSELAGE) · airframe 55,370 hrs · 28,722 cycles

DURING CHECK-C MAINT THE L1 DOOR SILL PLATE ATTACH ANGLE HAD CORROSION ON UPPER AND LOWER EDGE APPROXIMATELY STA 170 TO 190, LBL 57. FABRICATED NEW FLOOR SUPPORT PER SPM 6-70-01, PAGE 2 AND 3, AND SRM 53-14-11. INSTALLED PER SRM 51-30-5, SRM 51-30-2, AND SRM 51-60-0. INSTALLED NEW ANGLE FROM STOCK.

Part: SKIN — DENTED (FUSELAGE) · airframe 54,144 hrs · 28,034 cycles

A DENT 18 IN BY 12 IN BY 0.500 INCHES WAS FOUND ON PREFLIGHT, 8 FEET FWD OF THE FWD CARGO DOOR AND 30 IN AFT OF THE DRAIN MAST. FRAME BETWEEN LONGERON 24R AND 25R REPAIRED. LONGERON 25R STA 247 TO 287 REPAIRED. LONGERON 26R STA 247 TO 287 REPAIRED. SKIN REPAIRED STA 247 TO 287. CHECK-C 8-20-00 STL.

Part: ACM — CONTAMINATED (AC BAY) · airframe 53,647 hrs · 27,771 cycles

FUMES WERE REPORTED IN THE CABIN. OIL WAS FOUND IN THE LT ACM DUCTS. REPLACED THE ACM, CHANGED WATER SEPERATERS, AND ACCOMPLISHED PACK BURN OUT. CHECK-C 8-20-00 STL.

Part: BATTERY — DISCHARGED (COCKPIT) · airframe 53,049 hrs · 27,449 cycles

BOTH COCKPIT EMERGENCY LIGHTS WERE INOPERATIVE. REPLACED THE BATTERIES. CHECK-C 8-20-00 STL.

Part: POWER SUPPLY — INOPERATIVE (CABIN) · airframe 52,731 hrs · 27,243 cycles

THE FIRST CLASS OVERHEAD EMERGENCY LIGHTS WERE INOPERATIVE. REPLACED THE POWER SUPPLY. CHECK-C 8-9-00 STL.

Part: BATTERY — INOPERATIVE (CABIN) · airframe 52,117 hrs · 26,893 cycles

THE CEILING EMERGENCY LIGHTS BETWEEN ROWS 7 AND 10 WERE VERY DIM, AND A SMALL SECTION OF EGRESS LIGHTING WAS INOPERATIVE BETWEEN ROWS 24 AND 26. REPLACED THE BATTERIES (P/N 408822-101) FOR THE CEILING LIGHTS, AND RECONNECTED A DISCONNECTED EGRESS LIGHT STRIP. CHECK-C 8-11-99 JFK.

Part: A/C PACK — MALFUNCTIONED (TAIL) · airframe 51,354 hrs · 26,481 cycles

ONE MINUTE PRIOR TO LANDING, AIR CONDITIONING TEMPERATURE INCREASED AND CABIN FILLED WITH SMOKE. TURNED OFF BOTH AIR CONDITIONING PACKS, DID NOT START THE APU. ACCOMPLISHED AN OPERATIONAL CHECK OF BOTH AIR CONDITIONING PACKS, CYCLING TEMPS HOT TO COLD BUT NO SMELL OR SMOKE NOTED. OPERATIONAL CHECK WAS NORMAL. CHECK-C 8-11-99 JFK.

Part: BRACKET — CRACKED (TAIL COMPT)

DURING CHECK C MAINT, FOUND MOUNT BRACKET LEG AND WEB CRACKED AT RUDDER PITOT DRAIN MANIFOLD IN RT TAIL COMPT. REPAIRED BRACKET LEG AS NEC PER DC9 SRM 53-01, PAGE 10. REPAIRED WEB AND STOP DRILLED PER SRM 53-01.

Part: POWER SUPPLY — INOP (ROW 2-5)

DURING PREFLIGHT INSPECTION, FOUND EGRESS LIGHTS INOP BETWEEN ROWS 2 TO 15. REPLACED POWER SUPPLY.

Part: BATTERY PACK — DISCHARGED (ROW 7)

FOUND EGRESS TRACK LIGHTING INOPERATIVE BETWEEN CABIN ROW 2 AND 15. REPLACED BATTERY PACK AND REPAIRED FEEDER STRIP AT ROW 7. CHECK-C 9-17-98 STL.

Part: APU — MALFUNCTIONED (APU COMP)

MCI - FLT 123 - THE APU QUIT IN-FLIGHT WITH THE LEFT ENGINE GENERATOR ALREADY DEFERRED INOPERATIVE PER MEL. MADE UNSCHEUDLED LANDING AT MCI. CORRECTED LT ENGINE GENERATOR BY REPLACING THE GENERATOR AND CSD. DEFERRED THE APU INOPERATIVE PER MEL. CHECK-C 9-19-97 MCI. S/D. THE GENERATOR WAS FOUND WITH A BROKEN LEAD ON THE MAIN ROTOR. THE CSD GOVERNOR SUPPORT BUSHINGS AND SHAFT WERE FOUND WORN. THE APU TESTED NORMAL, NO PROBLEM WAS FOUND. (X)

Part: WINDSHIELD — CRACKED (LT COCKPIT)

SFO - FLT 272 - IN CRUISE, THE FIRST OFFICER'S NR 1 WINDSHIELD CRACKED. REPLACED THE FIRST OFFICER'S NR 1 WINDSHIELD. MFG NR 5912290-506. OP-16 9-9-97 MCI. (X)

Part: SKIN — CRACKED (BS 465-470)

MCI - DURING OP 16 MAINTENANCE CHECK, FOUND FUSELAGE SKIN CRACKED BEYOND STOP DRILL ON A REPAIR, AT 3 PLACES FS 465 TO 470, STRINGER 30. REPAIRED PER ARA 11453 AND STANDARD PRACTICES. (M)

Part: TURBINE — FAILED (NR 2 ENG)

OMA - DURING CRUISE NR 2 ENGINE, S/N 3225, WAS SHUTDOWN DUE TO TURBINE FAILURE. ENGINE TOTAL TIME 34,212, CYCLES 17,878.

Part: STATOR — FAILED (NR 2 ENGINE)

OMA - FLT 114 - INVESTIGATION OF NR 2 ENGINE, S/N 3225, SHUTDOWN REVEALED AN 8TH STAGE COMPRESSOR STATOR, MFG P/N 789788, FRACTURED LIBERATING METAL PARTICLES INTO GAS PATH CAUSING MASSIVE HIGH PRESSURE COMPRESSOR AND TURBINE DAMAGE. ENGINE WAS REPAIRED AND RETURNED TO SERVICE.

Part: BUSHING — FAILED (NR 1 ENG GEARBOX)

ICT - DURING CRUISE, NR 1 ENGINE, S/N 3210, SPOOLED DOWN. SHUT DOWN ENGINE. FOUND INTERNAL MALFUNCTION IN N-2 ACCESSORY GEARBOX, MFG P/N 758300. CHANGED ENGINE AND ENGINE OPERATION CHECKED NORMAL. INVESTIGATION OF SPOOL DOWN OF NR 1 ENGINE, REVEALED A BUSHING, P/N 783310, ALLOWED THE INPUT GEAR TO SHIFT CAUSING RAPID TOOTH WEAR, RESULTING IN GEARBOX FAILURE. GEARBOX REPAIRED AND RETURNED TO SERVICE. (M)

Part: SENSOR — FAILED (NLG PROX)

BOS - FLT 184 - DURING CRUISE ONE HOUR AFTER TAKEOFF, NLG RED UNSAFE LIGHT ILLUMINATED. DURING APPROACH, RED UNSAFE LIGHT REMAINED ON. CYCLED LANDING GEAR AND LIGHT WENT OUT. FOUND NLG PROXIMITY SENSOR MFG PN 8-337-03 BAD. REPLACED NLG PROXMITY SENSOR. NOSE LANDING GEAR POSITION AND WARNING SYSTEM CHECKED NORMAL. CHECK C2D 9-14-94 MCI.