N785NC

Part: BATTERY — INOPERATIVE (EMERGENCY LIGHT) · airframe 63,275 hrs · 59,031 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. (A)

Part: CONNECTOR — DISCONNECTED (EMERGENCY LIGHTS) · airframe 63,034 hrs · 58,808 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY EXIT SIGN LIGHT FOR THE FWD RT OVERWING HATCH WAS INOPERATIVE. MAINTENANCE FOUND THE WIRE RECEPTACLE UNPLUGGED. AFTER CONNECTOR WAS RE-SECURED THE LIGHTS FUNCTIONED WITHOUT PROBLEM. (A)

Part: HOSE — SEPARATED (ACM) · airframe 62,565 hrs · 58,395 cycles

THE FLIGHT ATTENDANT REPORTED A THIN HAZE OF SMOKE AND A BURNING RUBBER SMELL IN THE CABIN. FLIGHT CREW NOTED THE SAME IN THE COCKPIT. THE SMOKE QUICKLY DISSIPATED SO THE FLIGHT CONTINUED TO SCHEDULED DESTINATION. LANDING AT DTW WAS NORMAL AND PASSENGERS DEPLANED NORMALLY. MAINTENANCE FOUND THE LEFT AIR CYCLE MACHINE COMPRESSOR INLET HOSE SEPARATED FROM CONNECTOR. NEW CLAMP AND HOSE INSTALLED, LEAK CHECK, ENGINE INSPECTION, AND ACM INSPECTION ALL LOOKED GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: DUCT — LOOSE (TAIL) · airframe 54,591 hrs · 51,077 cycles

LOST CABIN PRESSURE AT FL310 AND PERFORMED AN EMERGENCY DESCENT TO 10,000 FEET. THE OUTFLOW VALVE WAS FULLY CLOSED AND BOTH SUPPLY PRESSURES INDICATED 25 PSI. FLIGHT LANDED WITHOUT INCIDENT AT GFK. AFTER LANDING, THE CREW DETERMINED THERE WAS NO AIRFLOW FROM THE LEFT PACK AND NORMAL AIRFLOW FROM THE RIGHT PACK MAINTENANCE SECURED A LOOSE DUCT IN THE TAIL. AIRCRAFT RETURNED TO SERVICE.

Part: CONTROL VALVE — FAILED (A/C BAY) · airframe 54,541 hrs · 51,026 cycles

DURING CRUISE AT FL330, THE MASTER WARNING AND RED CABIN PRESSURE LIGHTS ILLUMINATED AND CABIN PRESSURE INDICATED 1000 FEET. COMPLIED WITH COM PROCEDURES. AIRCRAFT DESCENDED TO 10,000 FEET BUT CREW COULD NOT CONTROL THE CABIN PRESSURE. MASKS DEPLOYED AUTOMATICALLY PRIOR TO DESCENT. FLIGHT LANDED AT DTW WITHOUT INCIDENT. MAINTENANCE REPLACED THE LEFT FLOW CONTROL VALVE. OPERATIONAL CHECK OK.

Part: ROD — BROKEN (LT SLAT ACTUATOR) · airframe 53,441 hrs · 50,022 cycles

WHEN SLATS WERE EXTENDED, THE AIRCRAFT ROLLED TO THE RIGHT. SLAT DISAGREEMENT LIGHT ILLUMINATED AND BLUE SLAT EXTEND LIGHT DID NOT ILLUMINATE. COMPLIED WITH COM PROCEDURES AND AIRCRAFT LANDED UNEVENTFULLY WITH SLATS RETRACTED AND FLAPS EXTENDED. MAINTENANCE REPLACED THE LEFT LOWER SLAT ACTUATOR ROD WHICH WAS FOUND BROKEN AND LUBED THE LEFT WING SLAT ROLLERS. AIRCRAFT RETURNED TO SERVICE.

Part: BATTERY PACK — INOPERATIVE (CABIN) · airframe 50,721 hrs · 47,609 cycles

DURING LINE CHECK, FOUND FORWARD SECTION OF EMERGENCY LIGHTS INOPERATIVE. MAINTENANCE REPLACED THE BATTERY PACK. OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (TAIL) · airframe 49,581 hrs · 46,585 cycles

DURING LINE MAINTENANCE INSPECTION, FOUND TAIL COMPARTMENT EMERGENCY LIGHTS DIM. REPLACED BATTERY PACK.

Part: WIRE — CROSSED (COCKPIT)

DURING LINE MAINTENANCE INSPECTION, FORWARD COCKPIT AND FORWARD ENTRY CEILING EMERGENCY LIGHTS WOULD NOT SHUT OFF, NO OTHER POWER AVAILABLE. FOUND WIRES CROSSED AT TERMINALS 4 AND 7. REPAIRED WIRING, OPERATIONAL CHECK NORMAL.

Part: VALVE — INOPERATIVE (NLG)

THE NOSE LANDING GEAR DID NOT EXTEND. THE FLIGHT CREW FOLLOWED COM PROCEDURES, MANUALLY EXTENDED THE NOSE LANDING GEAR, AND LANDED AT MEM WITHOUT INCIDENT. MAINTENANCE REPLACED THE LANDING GEAR CONTROL VALVE AND THE NOSE LANDING GEAR CYLINDER. (CYLINDER NO HELP) OPERATIONAL CHECK NORMAL.

Part: CHARGER — INOPERATIVE (CABIN)

DURING LINE CHECK, FOUND LEFT AND RIGHT EMERGENCY EXIT EXTERIOR LIGHTS INOPERATIVE. MAINTENANCE REPLACED BATTERY CHARGER, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FLOOR PROXIMITY EMERGENCY LIGHTS FORWARD OF OVERWING EXITS INOPERATIVE. REPLACED BATTERY PACK AND BATTERY. OPERATIONAL CHECK NORMAL.

Part: BATTERY — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND OVERHEAD EMERGENCY LIGHTS ROWS 19-25 INOPERATIVE. REPLACED BATTERIES IN BATTERY PACK. OPERATIONAL CHECK OK.

Part: PROX SENSOR — FAILED (RT MLG)

ON TAKEOFF, AS GEAR HANDLE SELECTED TO UP POSITION, THE RIGHT GEAR UNSAFE LIGHT REMAINED ILLUMINATED. FOLLOWED COCKPIT OPERATING MANUAL PROCEDURE. ON GEAR EXTENSION ALL INDICATIONS WERE NORMAL. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED RIGHT GEAR UP PROXIMITY SENSOR, OPERATIONAL CHECK OK.

Part: UPLATCH HOOKY — WORN (LT MLG)

AFTER TAKEOFF, THE LEFT GEAR UNSAFE LIGHT AND GEAR DOOR OPEN LIGHT REMAINED ILLUMINATED. PERFORMED COCKPIT OPERATING MANUAL PROCEDURE AND GEAR DOOR LIGHT WENT OUT BUT GEAR UNSAFE LIGHT REMAINED ILLUMINATED. ON GEAR EXTENSION, RECEIVED THREE GREEN DOWN BUT GEAR DOOR LIGHT REMAINED ILLUMINATED. AIRCRAFT LANDED WITH GEAR DOOR OPEN. MAINTENANCE FOUND UPLATCH AND HOOK WORN ON LEFT GEAR. REPLACED GEAR DOOR AND BOTH DOOR BUMPERS, GEAR OPERATIONAL CHECK OK.

Part: DOOR SEAL — DIRTY (ACCESSORY COMPT)

DURING CLIMBOUT, UNABLE TO PRESSURIZE THE AIRCRAFT. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND DEBRIS UNDER SEAL IN ACCESSORY COMPARTMENT DOOR. REMOVED DEBRIS, SYSTEM OPERATED OK.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND AFT LEFT AND RIGHT CABIN OVERWING EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES, OPERATIONAL CHECK OK.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND OVERHEAD EMERGENCY LIGHT FORWARD OF WING INOPERATIVE. REPLACED BATTERIES. OPERATIONAL CHECK OK.

Part: NOSE DOME — MISSING (NR 2 ENGINE)

DURING CRUISE FLIGHT, NR 2 ENGINE BEGAN TO EXPERIENCED COMPRESSOR STALLS. THRUST REDUCED AND STALL CEASED. OPERATED NR 2 ENGINE AT IDLE THE REMAINDER OF THE FLIGHT. AIRCRAFT DIVERTED TO DSM AND LANDED WITHOUT FURTHER INCIDENT. GROUND MAINTENANCE INSPECTED THE ENGINE AND FOUND NR 2 ENGINE INTAKE NOSE DOME MISSING. NEW NOSE DOME WAS INSTALLED. BORESCOPE INSPECTED ENGINE, NO DAMAGE FOUND. AIRCRAFT WAS GROUND RUN AND RETURNED TO SERVICE.

Part: FITTING — CRACKED (PAX DOOR)

DURING H-CHECK, FOUND A .50 INCH CRACK IN THE AFT ENTRY DOOR UPPER BEAM END FITTING, LEFT SIDE. REPLACED FITTING PER DWG 9929480.

Part: ANGLE — CRACKED (BS 236.875)

DURING H-CHECK, FOUND A CRACK IN THE AFT CABIN DOOR NR 3 BEAM RIGHT ATTACH ANGLE STA Z36.875. REPAIRED ANGLE (P/N 9915565-29) PER EA 98-109053.

Part: FITTING — CORRODED (FS 664-693)

DURING H-CHECK, FOUND CORROSION IN THE LONGERON 30 END FITTING AT FS 664 - FS 693. REPLACED FITTING PER SRM 51-30-5.

Part: FITTING — CRACKED (CARGO DOOR)

DURING H-CHECK, FOUND CRACKS IN THREE AFT CARGO DOOR INTERNAL STOP FITTINGS AT THE FORWARD SIDE. REPLACED FITTINGS.

Part: FITTINGS — CRACKED (FS 1167)

DURING H-CHECK, FOUND CRACKS IN THREE AFT ENTRY DOOR STOP FITTINGS FS 1167, LOWER RIGHT, LOWER LEFT, AND CENTER LEFT. REPLACED FITTINGS PER SRM 51-30-2 AND SRM 51-30-5.

Part: POWER SUPPLY — INOPERATIVE (CABIN)

DURING LINE CHECK, FOUND OVERHEAD AISLE EMERGENCY ESCAPE LIGHTS INOPERATIVE AT ROW 20 TO 24. REPLACED POWER SUPPLY, OPERATIONAL CHECK GOOD.

Part: STRUT — REQD SERVICE (NLG)

DURING CLIMBOUT, GEAR UNSAFE LIGHT ILLUMINATED UPON GEAR RETRACTION. RECYCLED GEAR AND RETRACTED NORMALLY. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. FOUND NOSE STRUT LOW. REPLACED NOSE LANDING GEAR STRUT SERVICING VALVE. SERVICED STRUT AND CHECKED GOOD.

Part: UPLOCK ASSY — FAILED (MLG)

DURING CLIMBOUT AT GEAR UPLATCH CHECK, MAIN LANDING GEAR UNSAFE LIGHT AND GEAR DOOR LIGHT CAME ON. GEAR UNSAFE LIGHT DID NOT GO OUT WHEN GEAR HANDLE WAS MOVED TO UP POSITION. FLIGHT RETURNED TO MSP AND LANDED NORMALLY. MAINTENANCE REPLACED GEAR UPLOCK ASSEMBLY. JACKED AIRCRAFT AND RAN GEAR, OPERATIONAL CHECK GOOD.

Part: UPLOCK MECH — LACK OF LUBE (LT MLG)

DURING CLIMBOUT ON INITIAL UPLATCH CHECK, RECEIVED GEAR DOOR OPEN AND LEFT MAIN GEAR UNSAFE INDICATION. CREW FOLLOWED COCKPIT OPERATING PROCEDURE AND RECEIVED GREEN INDICATION. FLIGHT RETURNED TO MSP. MAINTENANCE LUBED UPLOCK MECHANISM AND ADJUSTED DOOR. SWUNG GEAR SEVERAL TIMES AND OPERATIONAL CHECK GOOD.

Part: RETRACT MECH — MALFUNCTIONED (LT MLG)

LEFT MAIN LANDING GEAR EXTENDED ON UPLATCH CHECK. CREW CHECKED ACCORDING TO COCKPIT OPERATING MANUAL AND LIGHT WENT OUT. ON APPROACH, PUT HANDLE IN UPLATCH POSITION AND GEAR CHECKED NORMAL. MAINTENANCE JACKED AIRCRAFT AND SWUNG GEAR SEVERAL TIMES, OPERATIONAL CHECK GOOD.

Part: DOOR LINKS — FAILED (NLG)

DURING CLIMB, A VIBRATION WAS FELT FROM THE NOSE LANDING GEAR AREA ON GEAR RETRACTION. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED BOTH NOSE GEAR DOOR LINKS. OPERATIONAL CHECK NORMAL AND AIRCRAFT RETURNED TO SERVICE.

Part: BATTERY — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT SECTION ESCAPE PATH LIGHTING INOPERATIVE. REPLACED BATTERY AND POWER SUPPLY.

Part: SPRING — WEAK (GEAR BYPASS HNDL)

LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. FLIGHT RETURNED TO MEM, AND LANDED WITH MAIN GEAR DOORS DOWN. FOUND BYPASS HANDLE SPRINGS WEAK. REPLACED SPRINGS, AND REPLACED THE LEFT AND RIGHT MAIN GEAR DOORS DUE TO DAMAGE INCURRED. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.

Part: WEB — CRACKED (LT PYLON)

DURING LINE CHECK, FOUND .75 INCH CRACK IN WEB JUST AFT OF FORWARD ENGINE MOUNT. REPAIRED PER EA 98-087982.

Part: WASHER — WORN (RT MLG STRIKER)

DURING CLIMB-OUT FROM MCI, RIGHT MAIN GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR RETRACTION. GEAR DOOR OPEN LIGHT WAS OUT. RECYCLED GEAR AND LIGHT STAYED ON. PERFORMED UPLATCH CHECK AND LIGHT EXTINGUISHED. FLIGHT CONTINUED TO DESTINATION (DTW) AND LANDED WITHOUT INCIDENT. FOUND RIGHT MAIN GEAR UPLATCH STRIKER LEVER GUIDE WASHER WORN. REPLACED WASHER. OPERATIONAL CHECK OK ON GEAR SWING. AIRCRAFT RETURNED TO SERVICE.

Part: PROX CONTL BOX — MALFUNCTIONED (NLG)

NOSE LANDING GEAR RED UNSAFE LIGHT ILLUMINATED ON APPROACH INTO DTW. LIGHT EXTINGUISHED WHEN GEAR WAS EXTENDED. EMERGENCY EQUIPMENT WAS CALLED OUT AS A PRECAUTION AND AIRCRAFT LANDED SAFELY WITHOUT INCIDENT. REPLACED NOSE GEAR UPLOCK SENSOR AND PROXIMITY CONTROL BOX. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.