N9330

Part: WARNING LIGHT — ILLUMINATED (TE FLAP SYST)

SPOILER/FLAP EXTENDED LIGHT ILLUMINATED WITH FLAPS SELECTED TO 15 DEGREES. CAPTAIN DECLARED A YELLOW EMERGENCY AND LANDED WITH FLAPS AT 5 DEGREES. MAINTENANCE INSPECTED AND TESTED SYSTEM. DISCREPANCY COULD NOT BE DUPLICATED. AIRCRAFT RETURNED TO SERVICE.

Part: SOCKET — SHORTED (NLG)

NOSE LANDING GEAR GREEN LIGHT ILLUMINATED WHEN THROTTLES WERE BROUGHT TO IDLE POWER DURING DESCENT. CREW REQUESTED EMERGENCY EQUIPMENT ON STANDBY AS A PRECAUTION AND FLIGHT WAS CONTINUED TO DESTINATION. NORMAL INDICATIONS WERE ACHIEVED WHEN GEAR WAS LOWERED FOR LANDING. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NOSE GEAR GREEN LIGHT SOCKET ASSEMBLY SHORTED INTERNALLY. REPLACED SOCKET, OPERATIONAL CHECK NORMAL ON GEAR CYCLE.

Part: CAM — OUT OF ADJUST (TE FLAPS)

FLAP/RUDDER STOP INOPERATIVE LIGHT ILLUMINATED DURING TAKEOFF ROLL AT 80 KNOTS. TAKEOFF WAS ABORTED AT 95 KNOTS AND AIRCRAFT RETURNED TO GATE. MAINTENANCE ADJUSTED CAM ON FLAP FOLLOW-UP DRUM IN LEFT WHEEL WELL. OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT FLIGHT ATTENDANT OVERHEAD, AFT AIRSTAIR, AND AFT TAIL CONE EMERGENCY LIGHTS OUT. REPLACED BATTERIES, OPERATIONAL CHECK NORMAL.

Part: FRAME — CRACKED (BS 965)

DURING M-CHECK, FOUND A CRACK AT RIGHT OUTBOARD FRAME FS 965. REPAIRED PER EA 99-112143.

Part: SLIDE — BATTERY FAILED (SERVICE DOOR)

DURING PERIODIC CHECK, FORWARD SERVICE DOOR EVACUATION SLIDE FAILED BATTERY TEST. REPLACED SLIDE.

Part: FITTING — CRACKED (BS 598)

DURING M-CHECK, FOUND CRACKED FITTING IN WEB AT FS 598, LONGERON 19R. REPLACED FITTING (P/N 5913055-502) PER SRM 51-30-5, 51-22-1, AND 51-24-0.

Part: BULKHEAD — CRACKED (BS 110)

DURING 'M' CHECK, FOUND CRACK IN NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE BULKHEAD, RIGHT SIDE TOP OF OUTBOARD VERTICAL FRAME FS 110. REPAIRED PER EA 99-112875.

Part: KEEL BEAM WEB — CORRODED (FUSELAGE)

DURING 'M' CHECK, FOUND CORROSION ON THE CENTER KEEL BEAM WEB. REPAIRED PER EA 99-112890.

Part: SKIN — CORRODED (BS 617-639)

DURING M CHECK, FOUND CORROSION ON FUSELAGE SKIN INNER SURFACE BETWEEN LONGERONS 17L - 18L, FS 617 - 639. REPAIRED PER EA 99-112909.

Part: BULKHEAD — CRACKED (BS 83)

DURING M-CHECK, FOUND A CRACK IN THE NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE BULKHEAD AT FS 83. REPAIRED PER EA 99-112876.

Part: PRESSURE PANEL — CRACKED (BS 110)

DURING M-CHECK, FOUND CRACK IN NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE PANEL AT FS 110 AT OUTBOARD BEAM. REPAIRED PER EA 99-112875.

Part: DOWNLOCK SWITCH — BROKEN (RT MLG)

DURING APPROACH, LEFT MAIN GEAR GREEN DOWNLOCK LIGHT DID NOT ILLUMINATE AFTER GEAR EXTENSION. CREW RECYCLED GEAR AND NORMAL INDICATIONS WERE ACHIEVED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED LEFT MAIN GEAR DOWNLOCK SWITCH, OPERATIONAL CHECK NORMAL ON GEAR SWING.

Part: BATTERY PACK — DISCHARGED (LT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND EMERGENCY LIGHTS AT EXIT ROW 12 INOPERATIVE. REPLACED BATTERIES, OPERATIONAL CHECK NORMAL.

Part: WIRE — BROKEN (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT TAILCONE EMERGENCY LIGHTS INOPERATIVE. REPAIRED BROKEN WIRING BEHIND LIGHT ASSEMBLY, OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (CABIN)

SEVERAL EMERGENCY LIGHTS WERE FOUND TO BE INOPERATIVE DURING FAA GROUND INSPECTION. REPLACED BATTERIES TO FORWARD CABIN OVERHEAD EMERGENCY LIGHTS, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (LT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (AFT CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT CEILING EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES, OPERATIONAL CHECK NORMAL.

Part: POWER SUPPLY — INOPERATIVE (LT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED POWER SUPPLY, OPERATIONAL CHECK NORMAL.

Part: FITTING — CORRODED (FS 168)

DURING M-CHECK, FOUND CORROSION ON THE FS 168 FRAME TO LONGERON 18R ATTACH FITTING. REPLACED FITTING PER SRM 51-30.

Part: BOOST PUMP — FAILED (FUEL TANKS)

CAPTAIN'S NAV FLAGGED ON HSI AFTER TAKEOFF. THIS WAS FOLLOWED BY NUMEROUS CIRCUIT BREAKERS POPPING INCLUDING THE LEFT AC BUS C-PHASE. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED BOTH A AND C PHASE CIRCUIT BREAKERS FOR LEFT AC BUS. FOUND ALL PHASES OF CENTER FORWARD FUEL BOOST PUMP CIRCUIT BREAKERS POPPED. THIS IS THE SUSPECTED CAUSE FOR THE LEFT AC BUS CIRCUIT BREAKER POPPED. REPLACED CENTER FORWARD FUEL BOOST PUMP. LEAK AND OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FORWARD OVERWING EXIT EMERGENCY LIGHTS WEAK. REPLACED BATTERIES AND OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (LT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND THE LEFT ENGINE NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK AND OPERATIONAL CHECK NORMAL.

Part: CIRCUIT BREAKER — DAMAGED (LT AC BUS)

DURING CLIMB, LEFT AC BUS CIRCUIT BREAKER POPPED. CREW RESET ALL THREE BREAKERS AND ONE POPPED AGAIN FIVE MINUTES LATER. POWER COULD NOT BE RESTORED TO LEFT AC BUS. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND LEFT AC BUS B-PHASE CIRCUIT BREAKER DAMAGED. REPLACED CIRCUIT BREAKER AND OPERATIONAL CHECK NORMAL ON ALL SYSTEMS DURING POWER CHECK.

Part: DOOR FRAME — CRACKED (AFT CABIN)

DURING L-CHECK, FOUND A .375 INCH CRACK IN THE AFT CABIN DOOR FRAME AT THE UPPER HINGE. REPAIRED FRAME (P/N 9915565-25) PER EA 99-103317.

Part: HINGE — CORRODED (LT TE CTR FLAP)

DURING L-CHECK, FOUND CORROSION IN THE LEFT WING TRAILING EDGE CENTER FLAP HINGE UPPER INBOARD BOLT HOLE. REPLACED NR 3 FLAP HINGE (P/N 5919217-501).

Part: DNLOCK SW — MALFUNCTIONED (RT MLG)

DURING APPROACH, THE RIGHT MAIN LANDING GEAR LIGHT DID NOT ILLUMINATE. CREW RECYCLED THE LANDING GEAR AND THE LIGHT STILL DID NOT ILLUMINATE. CREW USED PERISCOPE TO VERIFY THE RIGHT MAIN LANDING GEAR WAS DOWN AND LOCKED. THE AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED THE RIGHT MAIN LANDING GEAR DOWNLOCK SWITCH, OPERATIONAL CHECK GOOD.

Part: ANTICIPATOR — MALFUNCTIONED (LT PACK)

LEFT AIR CONDITIONING SUPPLY TEMPERATURE HIGH LIGHT ILLUMINATED WHEN POWER WAS APPLIED AT START OF TAKEOFF ROLL. ABORTED TAKEOFF AND RETURNED TO GATE. REPLACED ANTICIPATOR AND THERMOSTAT, OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.

Part: PINS — WORN (TAILCONE)

DURING LINE CHECK, FOUND THAT THE TAILCONE WOULD NOT DROP. REPLACED 5 WORN PINS AND CLEANED THE SEAL, CHECKED OK.

Part: COMPUTER — MALFUNCTIONED (NR 1 STALL WARN)

STALL GLARESHIELD LIGHT AND STICK SHAKER ACTIVATED AFTER TAKEOFF. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED NR 1 STALL WARNING COMPUTER AND TRANSDUCER. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.