N776NC

Part: SKIN — DENTED (BS 1108-1121) · airframe 69,468 hrs · 66,155 cycles

DURING LINE CHECK FOUND DENT IN SKIN AFT OF CARGO DOOR AT BS 1108 & BS 1121 L22R TO L26R. REPAIRED IAW ERA 486265-14.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 69,467 hrs · 66,154 cycles

DURING LINE CHECK, MX FOUND THAT THE EMERGENCY EXIT SIGN AT THE MAIN CABIN DOOR, ALSO THE G2 GALLEY AND COAT CLOSEST EMERGENCY LIGHTS WERE ALL INOPERATIVE. MX REPLACED THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: ROD — STUCK (LANDING GEAR) · airframe 68,998 hrs · 65,749 cycles

RETURNED TO ATL DUE TO LANDING GEAR WOULD NOT RAISE WITHOUT USE OF LANDING GEAR OVERRIDE, AUTO SPOILER LIGHT ON, AND STALL INDICATION FAILURE. MAINTENANCE FOUND GROUND SHIFT ROD STUCK OVER CENTER IN GROUND MODE ON CAM FOLLOWER. REPOSITIONED GROUND SHIFT RODS ACCOMPLISHED GEAR SWING ALL INDICATIONS NORMAL.

Part: SHEAR TIE — WORN (BS 1247 L13R) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND WEAR ON SHEAR TIE BOLT HOLE AT BS 1247 L13R. REPAIRED IAW SRM 53-03-03, 51-30-05.

Part: FRAME — CRACKED (FUSELAGE) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FRAME CRACKED AT BS 734 RT SIDE. REPAIRED PER SRM 51-30-4, 51-30-5, 51-10-4, 51-10-3.

Part: ANGLE — CRACKED (BS 750) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND ANGLE CRACKED AT TOP OF CTR FUEL TANK BS 750 RBL 44. REPAIRED IAW SRM 06-10-01, 51-70-05 FIGURE 2.

Part: SKIN — MISREPAIRED (BS 290-358) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND SKIN REPAIR BS290-BS358 BETWEEN L18R-L19R DOES NOT MEET SRM REQUIREMENTS. REPAIRED IAW SRM 53-04-12C.

Part: FRAME — CHAFED (BS 1247 L13R) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FRAME CHAFED AT BS 1247 L13R. REPAIRED IAW SRM 51-72-01.

Part: FLOOR PANEL — CRACKED (FUSELAGE) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FLOOR PANEL NR60B CRACKED AT FWD AND AFT END. REPAIRED IAW SRM 51-10-2, 51-30-2.

Part: DOOR FRAME — CRACKED (BS 1112 L26R) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CRACK IN DOOR JAMB WEB AT BS 1112 L26R. REPAIRED IAW SRM 53-13-3, 53-30-2, 51-30-05.

Part: CARGO TRACK — CORRODED (BS 218-598) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CARGO TIE DOWN TRACK CORRODED IN FWD CARGO COMPARTMENT AT BS218-BS598 L26L TO L27L. REPAIRED IAW DWG S2922357 AND SRM 53-21-0, 51-30-01, 51-30-05.

Part: DOOR FRAME — CORRODED (BS 1060-1067) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON UPPER DOOR JAMB WEB AT BS1060-BS1067 L24R-L26R. REPAIRED IAW SRM 51-70-04 FIGURE 2.

Part: FLOOR PANEL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON FLOOR PANEL NR 15. REPAIRED IAW DWG 9357825 AND SRM 51-10-04.

Part: SUPPORT FITTING — CORRODED (BS 693-712) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CTR FUEL TANK SUPPORT FITTING CORRODED AT BS693-BS712. REPAIRED IAW SRM 51-10-4, 51-30-01, 51-30-05 PAGE 205.

Part: LONGERON — CRACKED (L28L) · airframe 68,625 hrs · 65,417 cycles

DURING "H" CHECK FOUND CRACK IN L28L IN E&E COMPARTMENT. REPAIRED IAW SRM 53-02-18, 51-30-2, 51-30-5, 51-10-3.

Part: CARGO TRACK — CORRODED (BS 1032-1167) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING "H" CHECK FOUND CORROSION ON LT CARGO TIE DOWN TRACK AT BS1032 TO BS1167. REPAIRED IAW SRM 51-10-4, 53-23-0, 51-30-5.

Part: LONGERON — CRACKED (L28R) · airframe 68,625 hrs · 65,417 cycles

DURING "H" CHECK FOUND CRACK IN L28R IN E&E COMPARTMENT. REPAIRED IAW SRM 53-02-18, 51-30-2, 51-30-5, 51-10-3.

Part: CARGO TRACK — CORRODED (BS 851-1060) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING "H" CHECK FOUND CORROSION ON RT CARGO TIE DOWN TRACK AT BS851 TO BS1060. REPAIRED IAW SRM 51-10-4, 53-23-0, 51-30-5.

Part: DOOR FRAME — CORRODED (BS 1060-1160) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING "H" CHECK FOUND LOWER DOOR JAMB PAN CORRODED IN AFT CARGO COMPARTMENT. BS1060-BS116 L29R TO L26R. REPAIRED IAW SRM 53-13-3, 53-05-44.

Part: FRAME — CHAFED (FUSELAGE) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND AFT ACCESSORY COMPARTMENT CANTED FRAME AT BS 1339 CHAFED ON RT SIDE. REPAIRED PER SRM 51-30-1, 51-30-2, 51-30-5, 51-10-4.

Part: SHEAR TIE — CRACKED (BS 1151 S14L) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND SHEAR CLIP CRACKED AT BS 1151 BELOW STRINGER 14L. REPAIRED IAW SRM 51-30-02, 51-30-05.

Part: DOUBLER — CHAFED (FUSELAGE) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK, FOUND CHAFED DOUBLER ON AFT ACCESSORY COMPARTMENT RT TOP CORNER CUT OUT. REPAIRED IAW SRM 51-30-05, 51-30-01.

Part: SKIN — DENTED (BS 217 S17-18R) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND SKIN DENT AT BS 217 BETWEEN L17R AND L18R. REPAIRED IAW DWG SG09530001.

Part: FRAME — CRACKED (BS 1167) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CRACK IN FORMER AT BS 1167 AT L18. REPAIRED IAW SRM 51-10-4, 51-30-02, 51-30-05.

Part: MEMBRANE — DAMAGED (FUSELAGE) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND MEMBRANE UNDER FLOOR PANEL NR 13 BS 153 HAS HOLE IN IT. REPAIRED IAW SRM 53-01-4, 51-10-2, 51-10-4, 53-20-03-801.

Part: SHEAR TIE — CRACKED (BS 734) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CRACK IN SHEAR TIE CLIP LT OTBD END AT BS 734. REPAIRED IAW SRM 53-03-12, 51-10-4, 51-30-5.

Part: FLOOR PANEL — DAMAGED (CABIN) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FLOOR PANEL NR 59 FWD END HAS ELONGATED FASTENER HOLE. REPAIRED IAW SRM 51-10-3, 51-70-4, 51-30-2.

Part: MEMBRANE — DAMAGED (BS 209) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND MEMBRANE DAMAGED AT BS 209 RBL10. REPAIRED IAW SRM 53-01 AND SRM 53-20-03-801.

Part: FLOOR PANEL — CRACKED (CABIN) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FLOOR PANEL NR 20 IS CRACKED IN 3 PLACES AND HAS CORROSION ON TOP AND BOTTOM OF PANEL. REPAIRED IAW SRM 51-10-4.

Part: SKIN — DENTED (BS 218 S16-17R) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND DENT IN SKIN AT BS 218 BETWEEN L17R AND L16R. REPAIRED IAW SRM 51-30-1, DWG SG09530001.

Part: FLOOR PANEL — DAMAGED (FUSELAGE) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FLOOR PANEL NR 72 SEVERAL FASTENER HOLES ELONGATED AND TORN OUT ON FWD AND AFT END OF PANEL. REPAIRED IAW SRM 51-70-04, 51-10-03, 51-70-04, 51-30-02.

Part: FLOORBEAM — CORRODED (BS 180) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON FLOOR SUPPORT AT BS180 RBL 22-44. REPAIRED IAW SRM 51-10-4, 51-30-5, 51-20-0.

Part: FLOOR PANEL — CORRODED (CABIN) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON CABIN FLOOR PANEL NR 23. REPAIRED IAW SRM 53-23-0, 51-30-2, 51-30-8.

Part: FLOOR PANEL — DAMAGED (FUSELAGE) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FLOOR PANEL NR 55 HAS HOLE ON INBD SIDE. REPAIRED IAW SRM 51-10-2, 51-10-4, 51-10-3, 51-30-2, 51-30-1.

Part: FLOOR PANEL — CORRODED (CABIN) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FLOOR PANEL NR 78 BOTTOM EDGE CORRODED. REPAIRED IAW SRM 51-30-2, 51-10-4, 51-30-2.

Part: WEB — CRACKED (FUSELAGE) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CRACK ON FLOOR WEB UNDER FLOOR PANEL NR 98. REPAIRED IAW SRM 53-10-16, 51-10-3, 51-30-2.

Part: SEAT TRACK — CORRODED (BS 200-275) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON SEAT TRACK AT BS 200-275 LBL44. REPAIRED IAW SRM 53-05-4.

Part: FLOOR SUPPORT — CORRODED (BS 160-200) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON FLOOR SUPPORT AT BS 160-200 BETWEEN LBL44. REPAIRED IAW 51-10-3, 53-13-1, 51-10-1, 53-01-1, 51-10-4, 51-30-5.

Part: FLOOR SUPPORT — CORRODED (BS 218-275) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON FLOOR SUPPORT AT BS 218-275 BETWEEN BL 0. REPAIRED IAW 51-10-4.

Part: FLOORBEAM — CORRODED (BS 200) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON FLOOR SUPPORT AT BS 200 BETWEEN LBL 22-44. REPAIRED IAW 53-01-1, 51-10-4, 51-30-5.

Part: FLOOR PANEL — GOUGED (CABIN) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FLOOR PANEL NR 73 TOP SKIN HAS HOLE GOUGED IN SURFACE. REPAIRED IAW SRM 53-01-4.

Part: FLOOR PANEL — CORRODED (FUSELAGE) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND FLOOR PANEL NR 61 TOP AND BOTTOM CORRODED. REPAIRED IAW SRM 53-23-0, 51-10-2, 51-10-4, 51-30-2.

Part: FLOORBEAM — CORRODED (BS 200) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK, FOUND CORROSION ON FLOOR SUPPORT AT BS200 BETWEEN RBL 22-44. REPAIRED IAW SRM 53-13-1, 51-30-2.

Part: FLOOR SUPPORT — CORRODED (BS 160-200) · corrosion level 2 · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND CORROSION ON FLOOR SUPPORT AT BS 160-200 BETWEEN RBL 44. REPAIRED IAW 51-10-1, 53-01, 53-30-02, 51-30-5, 51-10-4, 51-10-03.

Part: DOOR FRAME — CRACKED (L1 DOOR) · airframe 68,625 hrs · 65,417 cycles

DURING H-CHECK FOUND L1 DOOR JAMB WEB CRACKED AT ATTACH POINT TO INTERCOSTAL AT L12L. REPAIRED IAW SRM 53-01-4, 51-10-3, 51-30-2 AND 51-30-5.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 68,562 hrs · 65,362 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 23-26 OF THE CABIN WERE INOPERATIVE. MAINTENANCE REPLACED THE ASSOCIATED FUSE AND INSTALLED NEW BATTERIES IN THE POWER SUPPLY. OPERATIONAL CHECK WAS GOOD.

Part: FUSE — FAILED (EMERGENCY LIGHT) · airframe 68,458 hrs · 65,271 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 23-26 OF THE CABIN WERE INOPERATIVE. MX REPLACED THE FUSES IN THE POWER SUPPLY. OPS CHECK WAS GOOD.

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 68,415 hrs · 65,233 cycles

DURING OVERNIGHT CHECK FOUND EMERGENCY LIGHTS AT ROWS 5, 7, AND 9 WERE INOP. MX CHARGED BATTERY PACKS. OPS CHECKED GOOD, AND ACFT WAS RETURNED TO SERVICE.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 68,415 hrs · 65,233 cycles

DURING OVERNIGHT CHECK FOUND EMERGENCY LIGHTS AT ROW 22 TO 26 INOP. MX R & R BATTERY AND POWER SUPPLY. OPS CHECKED GOOD AND ACFT WAS RETURNED TO SERVICE.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHT) · airframe 68,329 hrs · 65,161 cycles

DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 23-26 OF THE CABIN WERE INOPERATIVE. MX REPLACED THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 68,329 hrs · 65,161 cycles

DURING LINE CHECK, MX FOUND THAT THE RT SIDE EXTERIOR EMERGENCY LIGHT WAS INOPERATIVE. MX REPLACED THE BATTERY PACK AND THE LIGHT RETURNED TO AN OPERATIONAL CONDITION.

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 68,244 hrs · 65,084 cycles

DURING LINE CHECK, MX FOUND THAT THE EMERGENCY EXIT SIGN AT THE MAIN CABIN DOOR WAS INOPERATIVE. MX REPLACED THE POWER SUPPLY AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 68,244 hrs · 65,084 cycles

DURING LINE CHECK, MX FOUND INOPERATIVE EMERGENCY PATHWAY LIGHTING IN ROWS 22 AND AFT IN THE CABIN. MX REPLACED THE BATTERIES IN THE POWER SUPPLY AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: BATTERY — DISCHARGED (CABIN) · airframe 67,676 hrs · 64,604 cycles

DURING LINK CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 13-17 OF THE CABIN WERE INOPERATIVE. MAINTENANCE REPLACED THE BATTERIES. OPERATIONAL CHECK WAS GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 67,294 hrs · 64,271 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 22-26 OF THE CABIN WERE INOPERATIVE. MAINTENANCE REPLACED THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: CONNECTOR — LOOSE (EMERGENCY LIGHT) · airframe 66,160 hrs · 63,281 cycles

DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING FROM ROWS 22 AND AFT WERE INOPERATIVE. MX FOUND AND CORRECTED A LOOSE CONNECTION AND THEN OPS CHECKED THE SYSTEM.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHT) · airframe 65,408 hrs · 62,589 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE TAIL COMPARTMENT HAD INOPERATIVE LIGHTS FOR THE CATWALK. MAINTENANCE REPLACED THE BATTERIES. OPERATIONAL CHECK WAS GOOD. (A)

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHT) · airframe 65,408 hrs · 62,589 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY EXIT SIGN LIGHTS FOR THE FWD OVERWING HATCHES WERE INOPERATIVE. MAINTENANCE REPLACED THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION. (A)

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHT) · airframe 63,971 hrs · 61,338 cycles

TAIL COMPARTMENT CATWALK EMERGENCY LIGHT INOP. REPLACED BATTERY PACK. OPERATION CHECKS GOOD.

Part: SKIN — CRACKED (BS 370) · airframe 63,089 hrs · 60,538 cycles

DURING "H" CHECK FOUND 1/4" CRACK IN FUSELAGE SKIN AT BS 370 FORWARD CARGO DOOR CUTOUT. REPAIRED PER EA 98-208811.

Part: DUCT — LOOSE (RT ACM) · airframe 59,882 hrs · 57,577 cycles

AT REACHING FL330, THE CABIN CONTINUED TO CLIMB. CREW WAS NOT ABLE TO CONTROL CABIN CLIMB SO AN EMERGENCY DESCENT WAS PERFORMED. ACCOMPLISHED COM PROCEDURES. CABIN ALTITUDE DID NOT EXCEED 11,500 FEET AND MASKS WERE NOT DEPLOYED. FLIGHT CONTINUED AT 10,000 FEET AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE DUCT TO THE RIGHT ACM COMPRESSOR INLET OFF. RE-ATTACHED THE DUCT. SYSTEM LEAK CHECK OK.

Part: DUCT — SEPARATED (A/C BAY) · airframe 57,393 hrs · 55,322 cycles

AIRCRAFT LOST AUTO PRESSURIZATION AT FL240 AND CRUISE POWER. CREW ATTEMPTED MANUAL CONTROL BUT WAS UNABLE TO KEEP THE CABIN FROM CLIMBING. COMPLIED WITH COM PROCEDURES. FLIGHT ACCOMPLISHED AN EMERGENCY DESCENT TO 10,000 FEET. MASK DID NOT DEPLOY AND AIRCRAFT CONTINUED TO AN UNEVENTFUL LANDING AT MSY. MAINTENANCE FOUND THE ACM EXHAUST DUCT SEPARATED. DUCT WAS REINSTALLED. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.

Part: INTERCOSTAL — CRACKED · airframe 57,100 hrs · 55,060 cycles

During Mck in ATL, the inbrd edge of the floor support intercostal at station 180 was found with two cracks between x=20 and x=30.

Part: ANGLE — CORRODED · corrosion level 2 · airframe 57,100 hrs · 55,060 cycles

During Mck in ATL, corrosion was found in the left upper cusp angle at station 200. Repaired per EA 98-190596.

Part: RIB — CRACKED · airframe 57,100 hrs · 55,060 cycles

During Mck in ATL, a crack was found in the left wing leading edge rib at station x 134.921. The crack emanates from the fastener hole and extends inbrd to the edge of the part. Repaired per EA 98-190577.

Part: BRACKET — CRACKED · airframe 57,100 hrs · 55,060 cycles

During Mck in ATL, 2 cracks were found on the left and right station 69 brackets X=+- 10". Repaired per EA 98-190582.

Part: TRANSMITTER — FAULTY (T/E FLAP) · airframe 56,816 hrs · 54,812 cycles

FLAPS SET TO 15 DEGREES FOR TAKEOFF, THE RIGHT FLAP INDICATOR SHOWED 15 DEGREES BUT THE LEFT INDICATOR SHOWED 18 DEGREES. CREW EXPERIENCED A TENDENCY TO ROLL TO THE RIGHT FROM LIFTOFF TO FLAP RETRACTION. FLIGHT CONTINUED TO DESTINATION AND LANDED UNEVENTFULLY AT DTW. NO MENTION OF UNCOMMANDED ROLL OR FLAP POSITIONS DURING LANDING. MAINTENANCE REPLACED THE LEFT FLAP POSITION INDICATOR TRANSMITTER. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.

Part: WHEEL — CRACKED (RT MLG) · airframe 53,970 hrs · 52,250 cycles

DURING PUSHBACK FROM THE GATE AREA AT YUL, THE PUSHBACK CREW REPORTED THAT THE RIGHT INNER WHEEL WAS CRACKED. THE AIRCRAFT WAS RETURNED TO THE GATE WITHOUT INCIDENT. MAINTENANCE REPLACED THE RIGHT INNER AND RIGHT OUTER MAIN WHEEL AND TIRE ASSEMBLIES. NOTE: IT WAS REPORTED THAT A 22 INCH SECTION OF THE RIGHT INNER WHEEL HAD SEPARATED WHEN THE AIRCRAFT DEPARTED DTW TO YUL. THE 22 INCH PIECE OF WHEEL MATERIAL WAS RECOVERED IN DTW.

Part: UNKNOWN — ODOR (COCKPIT)

TAKEOFF FUMES/SMELL WERE REPORTED BY THE FLIGHT ATTENDANT. AIRCRAFT RETURNED TO DEPARTURE AIRPORT. MAINTENANCE REPLACED THE APU AND LEFT ACM. THE 8TH AND 13TH STAGE BLEEEDS OF THE NR 1 ENGINE WERE INSPECTED FOR OIL, NONE FOUND.

Part: APU — LEAKING (APU BAY)

AFTER TAKEOFF AFT LEFT LAV SMOKE DETECTOR SOUNDED AND SMOKE APPARENT IN LAV. MAINTENANCE FOUND OIL LEAK FROM THE APU WAS BEING INGESTED INTO THE AC PNEUMATIC SYSTEM. APU AND WATER SEPARATORS REPLACED.

Part: ACM — CONTAMINATED (AIR DISTRIBUTION)

AFTER TAKEOFF SMOKE ALARMS IN 3 LAVS SOUNDED AND FUMES WERE PRESENT IN THE CABIN. AIRCRAFT RETURNED TO DEPARTURE AIRPORT. MAINTENANCE RAN ENGINES AT TAKEOFF POWER WITH PACKS ON TO BURN OUT RESIDUAL OIL FROM A PREVIOUS APU OIL LEAK. ACM AND WATER SEPARATORS WERE REPLACED.

Part: HINGE — BROKEN (LT TE FLAP)

AFTER CONFIGURING FOR LANDING, A THUMP WAS FELT/HEARD AND A SPLIT FLAP INDICATION WAS NOTICED BY FLIGHT CREW AT APPROXIMATELY 8 DEGREES RIGHT FLAP AND 40 DEGREES LEFT FLAP. THE FLAP/SLAT HANDLE WAS SPLIT DURING COM PROCEDURES AT WHICH TIME THE FLIGHT CREW REPORTED THERE DID NOT APPEAR TO BE CONTROL OF EITHER FLAP WITH THE FLAP LEVER. THE FLIGHT CREW INITIATED A GO-AROUND PROCEDURE, DECLARED A YELLOW EMERGENCY, AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LEFT INBOARD AFT NR 2 FLAP HINGE BROKEN. REPLACED BROKEN PART AND ADJUSTED PER MAINTENANCE MANUAL AND CITEXT PROCEDURES. OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING INSPECTION, THE AFT CABIN FLOOR PROXIMITY LIGHTS WERE FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE EMERGENCY LIGHTS BATTERY PACK, OPERATIONAL CHECK OK.

Part: PRESSURE WEB — CRACKED (BS 110)

DURING L CHECK, FOUND A CRACK IN THE NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE PANEL AT THE RIGHT OUTBOARD VERTICAL ATTACH ANGLE FS 110. REPAIRED PER EA 98-153495.

Part: PRESSURE WEB — CRACKED (BS 110)

DURING L CHECK, FOUND A CRACK IN THE NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE PANEL AT THE LEFT OUTBOARD VERTICAL ATTACH ANGLE FS 110. REPAIRED PER EA 98-153495.

Part: WIRE — BURNED (LT MLG WW)

FLIGHT CREW MEMEBER DISCOVERED A SMALL FLAME IN THE LEFT WHEEL WELL AT THE LOCATION OF THE ELECTRIC HYDRAULIC PUMP CANNON PLUG. GROUND PERSONNEL EXTINGUISHED THE FIRE AND FLIGHT CREW EVACUATED AIRCRAFT AS A PRECAUTION. MAINTENANCE REPLACED THE LEFT ELECTRIC HYDRAULIC PUMP AND REPAIRED CANNON PLUG WIRING, OPERATIONAL CHECK OK.

Part: POWER PACK — INOPERATIVE (CABIN)

DURING LINE CHECK, FOUND RIGHT EXTERIOR EMERGENCY LIGHT INOPERATIVE. REPLACED BULB AND POWER PACK FOR RIGHT OVERWING LIGHT, OPERATIONAL CHECK OK.

Part: SWITCH — FAILED (PARKING BRAKE)

DURING TAKEOFF ROLL AT APPROXIMATELY 80 KNOTS, RECEIVED TAKEOFF WARNING HORN. TRIM, SPOILERS, FLAPS, SLATS, AND BRAKES ALL IN PROPER POSITION SO TAKEOFF WAS ABORTED. AIRCRAFT RETURNED TO GATE. MAINTENANCE REPLACED PARKING BRAKE SWITCH. SYSTEM OPERATION CHECKED OK.

Part: AIR CYCLE MACH — FAILED (LEFT)

RIGHT AIR CONDITIONING PACK FAILED DURING CLIMB CAUSING LOSS OF PRESSURIZATION. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED LEFT AIR CYCLE MACHINE, FLOW CONTROL VALVE, AND PRESSURE REGULATOR, OPERATIONAL CHECK NORMAL.

Part: WARNING SENSOR — DIRTY (COCKPIT)

DURING TAKEOFF ROLL, TAKEOFF WARNING HORN SOUNDED AT APPROXIMATELY 85 KNOTS. ABORTED TAKEOFF. RECHECKED TAKEOFF CONFIGURATION, ALL SYSTEM CORRECT. RETURNED TO GATE. MAINTENANCE INSPECTED AND CLEANED THROTTLE, PARKING BRAKE, SPEED BRAKE, FLAP AND SLAT TAKEOFF WARNING SENSORS. SYSTEM OPERATIONAL CHECK OK.

Part: CSD — LEAKING (LT ENGINE)

AFTER TAKEOFF, LEFT CSD OIL PRESSURE LOW LIGHT ILLUMINATED. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. FOUND CSD OIL COOLER LEAKING. REPLACED LEFT CSD OIL COOLER AND LEAK CHECKED GOOD.

Part: POWER SUPPLY — INOPERATIVE (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FLOOR PROXIMITY EMERGENCY LIGHTS BETWEEN ROWS 9 THROUGH 15 VERY DIM. REPLACED POWER SUPPLY AND BATTERY, OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND EMERGENCY EXIT LIGHTS IN VENTRAL STAIR INOPERATIVE. REPLACED BATTERIES IN B5-28, OPERAITONAL CHECK OK.

Part: POWER SUPPLY — INOPERATIVE (CABIN)

DURING LINE CHECK, FOUND RIGHT OVERWING EMERGENCY LIGHT INOPERATIVE. REPLACED POWER SUPPLY AND BATTERY, OPERATIONAL CHECK OK.

Part: CUSP — CORRODED (FS 1136-1167)

DURING H-CHECK, FOUND CORROSION ON THE RIGHT CUSP FROM FS 1136 TO 1167. REPAIRED CUSP (P/N 2777976) PER EA 98-110533.

Part: FLOOR BEAM — CORRODED (FS 1136)

DURING H-CHECK, FOUND CORROSION ON THE FS 1136 FLOOR BEAM RIGHT SIDE. REPAIRED BEAM (P/N 9912243-59) PER EA 98-110806.

Part: FLOOR BEAM — CORRODED (FS 1108)

DURING H-CHECK, FOUND CORROSION ON THE FS 1108 FLOOR BEAM AT RBL 14. REPAIRED BEAM (P/N 9958186-1) PER EA 98-110807.

Part: FITTING — CRACKED (CARGO DOOR)

DURING H-CHECK, FOUND CRACKS IN THE AFT CARGO DOOR END FITTINGS, NR 1 AFT, NR 2 AFT AND NR 5 FORWARD. REPLACED ALL THREE END FITTINGS.

Part: CONTROLLER — MALFUNCTIONED (CABIN)

DURING DESCENT, CABIN BEGAN TO CLIMB AT 1,500 FPM. BEGAN A RAPID DESCENT TO 10M AND WORKED CONTROLLER MANUALLY. CABIN PRESSURE LIGHT CAME ON AND CABIN GOT TO APPROXIMATELY 10,500 FEET, NO MASKS DROPPED. REPLACED CABIN PRESSURE AMPLIFIER AND CABIN PRESSURE CONTROLLER. PRESSURIZED CABIN AND OPERATIONAL CHECK GOOD.

Part: GEARBOX — DAMAGED (NR 2 ENGINE)

CLIMBING THROUGH FL190, NR 2 ENGINE OIL PRESSURE AND QUANTITY DROPPED TO ZERO. THE ENGINE WAS SHUTDOWN AND THE FLIGHT RETURNED TO DTW WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE LP5 FITTING AND THREADS PULLED FROM THEIR BOSS ON THE GEARBOX. THE ENGINE WAS REPLACED WITH A SERVICEABLE UNIT.

Part: RELEASE MECH — MALFUNCTIONED (TAIL CONE)

DURING LINE CHECK, FOUND THAT EXCESSIVE FORCE WAS REQUIRED TO ACTIVATE THE RELEASE SYSTEM USING THE INTERIOR HANDLE. ALSO, THE TAIL CONE DID NOT DROP. FOUND THAT THE TAIL CONE HUNG UP ON THE RAIN GUTTER SEALANT. REMOVED THE SEALANT AND ACCOMPLISHED TAIL CONE MODIFICATION PER EO 5350-01049.

Part: RETRACT MECH — MALFUNCTIONED (LANDING GEAR)

LANDING GEAR WOULD NOT EXTEND ON APPROACH INTO DTW. LOWERED GEAR BY UTILIZING EMERGENCY EXTENSION PROCEDURES. EXECUTED GO-AROUND AND ACCOMPLISHED SUCCESSFUL LANDING ON SECOND ATTEMPT. FOUND DAMAGE TO THE LEFT MAIN GEAR DOOR LEADING EDGE AND DOOR SKID PLATES. REPAIRED DAMAGE PER SRM 52-01 AND 51-50, REPLACED DOOR SKID PLATES. INSPECTED GEAR HANDLE AND CLEANED. CHECKED NOSE GEAR GROUND SHIFT MECHANISM AND LUBED. INSPECTED LANDING GEAR CONTROL VALVE, PULLEYS, AND CABLES. ALL SYSTEMS CHECKED NORMAL AFTER NUMEROUS GEAR CYCLES. DISCREPANCY COULD NOT BE DUPLICATED. AIRCRAFT RETURNED TO SERVICE.