N507LX

Part: BATTERY PACK — INOPERATIVE (FLASHLIGHT) · airframe 11,634 hrs · 11,979 cycles

CREW REPORTED THAT THE FORWARD F/A FLASHLIGHT WAS INOPERATIVE. MAINTENANCE R & R THE FORWARD F/A FLASHLIGHT BATTERIES IAW AMM AND OPS CHECKED GOOD.

Part: BATTERY PACK — INOPERATIVE (FLASHLIGHT) · airframe 11,162 hrs · 11,515 cycles

CREW REPORTED THAT THE FWD F/A FLASHLIGHT WAS NOT WORKING. MAINTENANCE REPLACED BATTERIES IAW AMM AND OPS CHECKED GOOD.

Part: OIL SYSTEM — LEAKING (NR 1 ENGINE) · airframe 10,557 hrs · 10,946 cycles

AIRCRAFT DEPARTED AND DURING CLIMBOUT, EXPERIENCED A FLUCTUATION IN ENGINE OIL PRESSURE ON THE NR 1 ENGINE. OIL PRESSURE DECREASED BELOW OPERATIONAL LIMITS AND WAS SHUTDOWN. AN EMERGENCY WAS DECLARED AND RETURNED TO DEPARTURE, LANDED WITHOUT INCIDENT. ENGINE R & R WITH NEW ENGINE IAW AMM 72-00-00-890-803.

Part: BATTERY PACK — INOPERATIVE (FLASHLIGHT) · airframe 10,400 hrs · 10,774 cycles

CREW REPORTED THAT THE AFT F/A FLASHLIGHT BATTERY WAS INOPERATIVE. MAINTENANCE R & R THE BATTERIES IN THE AFT F/A FLASHLIGHT IAW AMM AND OPS CHECKED GOOD.

Part: AXLE — DAMAGED (NLG) · airframe 10,144 hrs · 10,481 cycles

AFTER ARRIVING AT THE GATE, A NLG TIRE WAS DISCOVERED MISSING FROM ACFT. ACFT HAD LANDED AND TAXIED TO GATE WITHOUT INCIDENT AND TIRE WAS LATER DISCOVERED ON SIDE OF THE RUNWAY. MX INSPECTED AND FOUND AXLE DAMAGE. MX R & R BOTH THE AXLE AND BOTH NOSE TIRES IAW AMM AND ACFT IS GOOD FOR SERVICE.

Part: BATTERY PACK — INOPERATIVE (FLASHLIGHT) · airframe 10,097 hrs · 10,433 cycles

CREW REPORTED THAT THE AFT F/A FLASHLIGHT BATTERIES ARE INOPERATIVE. MX R & R FLASHLIGHT BATTERIES IAW AMM AND OPS CHECKED GOOD.

Part: BATTERY — INOPERATIVE (FLASHLIGHT) · airframe 10,032 hrs · 10,369 cycles

CREW REPORTED THAT THE AFT F/A FLASHLIGHT IS INOPERATIVE. R & R AFT BATTERIES IAW AMM AND OPS CHECKED GOOD.

Part: PUMP — DEFECTIVE (HYD SYSTEM) · airframe 9,788 hrs · 10,124 cycles

DURING DECENT, ACFT ABRUPTLY YAWED AND BOTH THE MASTER CAUTION AND WARNING LIGHTS CAME ON ALONG WITH NR 2 ENGINE FADEC FAIL LIGHT. CAPTAIN NOTED THAT THE NR 2 ENGINE OIL PRESSURE GAUGE NEEDLE WAS FALLING AND THE PRESSURE FELL TO 12 PSI. AT THIS TIME THE NR 2 ENGINE OIL PRESSURE LIGHT ILLUMINATED. THE CREW PERFORMED ENGINE SHUTDOWN MEMORY ITEMS, SECURED THE NR 2 ENGINE AND DECLARED AN EMERGENCY. CREW LANDED WITHOUT INCIDENT AND WAS ABLE TO STOP CLEAR OF THE RUNWAY. MX FOUND THE ENGINE DRIVEN PUMP LEAKING, WHICH CAUSED FLUID LEAK OVER THE FADEC, CAUSING IT TO FAIL, CAUSING THE NR 2 ENGINE TO SHUTDOWN. THE DROP IN OIL PRESSURE WAS DUE TO THE ENGINE SHUTTING DOWN. MX R & R THE ENGINE DRIVEN PUMP AND FADEC IAW AMM AND OPS CHECKED GOOD.

Part: PANEL — OUT OF POSITION (CABIN) · airframe 9,422 hrs · 9,755 cycles

CREW REPORTED THAT THE PSU PANEL OVER SEAT 2A FELL OFF. MAINTENANCE RE-SECURED PSU PANEL PER BOMBA AMM AND OPS CHECKED GOOD.

Part: THRESHOLD — CORRODED (FUSELAGE) · corrosion level 2 · airframe 9,417 hrs · 9,752 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK - MAINTENANCE REPORTED LEVEL 2 CORROSION ON THE PASSENGER ENTRY DOOR THRESHOLD. MAINTENANCE REMOVED AND REPLACED PASSENGER ENTRY DOOR THRESHOLD IAW Q400 SRM 51-42-05. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.

Part: NUT PLATE — CORRODED (FUSELAGE) · corrosion level 2 · airframe 9,417 hrs · 9,750 cycles

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK FOUND PANEL 131CZ FORWARD AND AFT MOUNTING PLATES HAVE CORRODED NUT PLATES AND HARDWARE. MX REMOVED AND REPLACED NUT PLATES P/N NAS1474A3, IAW Q400 SRM 31-42-05. AIRCRAFT REMAINS IN TUS FOR HEAVY CHECK COMPLETION.

Part: BOLT — CORRODED (CARGO DOOR) · corrosion level 2 · airframe 9,417 hrs · 9,752 cycles

WHILE A/C WAS IN FOR HEAVY CHECK FOUND RIGHT FORWARD CABIN BAGGAGE DOOR FORWARD UPPER STOP HAS CORRODED HARDWARE. MX REMOVED AND REPLACED BAGGAGE HARDWARE IAW Q400 SRM 51-41-00. P/N NAS6203-10. A/C REMAINS IN TUS FOR HEAVY CHECK COMPLETION.

Part: LATCH — UNLATCHED (CARGO DOOR) · airframe 9,347 hrs · 9,675 cycles

FLYING EGE TO DEN, CREW REPORTED AFTER ROTATION A MASTER CAUTION LIGHT CAME ON WITH AFT CARGO DOOR SHOWING OPEN. CREW DID NOT DECLARE AN EMERGENCY AND RETURNED TO EGE WITHOUT INCIDENT. MAINTENANCE FOUND THE AFT CARGO DOOR LATCH IN THE UNLATCHED POSITION, LATCHED DOOR AND CONFIRMED DOOR SHUT AND LOCKED PER BOMBA AMM. OPS CHECKED GOOD.

Part: PANEL — SEPARATED (NR 2 PYLON) · airframe 9,129 hrs · 9,451 cycles

CREW REPORTED A PYLON PANEL ON THE NR 2 ENGINE HAD COME OF ON TAKEOFF. CREW LANDED WITHOUT DECLARING AN EMERGENCY OR FURTHER INCIDENT. MAINTENANCE INSPECTED FOR FURTHER DAMAGE AND REPLACED THE PANEL PER BOBMA AMM.

Part: SEAL — DEFECTIVE (CABIN DOOR) · airframe 8,677 hrs · 9,026 cycles

CREW REPORTED A/C RECEIVED A PRESSURIZATION FAULT AND WOULD NOT PRESSURIZE IN FLIGHT. FLIGHT ATTENDANTS REPORTED THEY COULD SEE THAT THE MAIN CABIN DOOR SEAL WAS NOT SEALING AT ALL. AIRCRAFT RETURNED TO FIELD AND MAINTENANCE INSPECTED AND FOUND THE MAIN CABIN DOOR SEAL BAD. MAINTENANCE R&R THE DOOR SEAL PER Q400 AMM.

Part: SWITCH — DEFECTIVE (CABIN) · airframe 8,577 hrs · 8,909 cycles

CREW REPORTED F/A FWD EMERGENCY LIGHT SEGMENT OUT. MAINTENANCE REPLACED EMERGENCY LIGHT SWITCH PER Q400 AMM 33-51-00.

Part: PROXIMITY SENSOR — FAULTY (NLG DOOR) · airframe 8,020 hrs · 8,283 cycles

CREW REPORTED NLG GEAR OPEN DOOR OPEN LIGHT AND LGD CAUTION LIGHT DURING CLIMB. CREW DECLARED AN EMERGENCY AND RTF AND LANDED AT DEN WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NLG DOOR CLOSED PROX SENSOR PER BOMBDR AMM, OPS CHECK GOOD.

Part: CONTROL UNIT — MALFUNCTIONED (NLG STEERING) · airframe 4,704 hrs · 4,274 cycles

GEAR WOULD NOT RETRACT WHEN GEAR UP SELECTED. THREE RED LAMPS. CREW DECLARED AND EMERGENCY AND AIRCRAFT RETURNED TO ASE AND WAS INSPECTED BY MX AND A FERRY FLIGHT WAS PERFORMED TO MAINTENANCE BASE IN DENVER. MAINTENANCE REMOVED AND REPLACED THE STEERING CONTROL UNIT AND PERFORMED A LANDING GEAR RETRACTION/EXTENSION TEST. AC WAS RETURNED TO SERVICE.

Part: CENTERING MECH — MALFUNCTIONED (NLG) · airframe 4,553 hrs · 4,137 cycles

LANDING GEAR FAILED TO RETRACT AFTER TAKE OFF. FLIGHT CREW DECLARED EMERGENCY AND RETURNED TO FAR. MAINTENANCE INTERROGATED THE PSEU PER MM32-61-00-742-801 AND FOUND NOSE CENTER UNREASONABLE FAR INDICATION. CENTERED NOSE WHEEL AND VISUALLY VERIFIED CENTERED. PSEU SHOWS NOSE CENTER OK. PERFORMED A GVI OF NOSE GEAR, CLEANED AND LUBED NOSE CENTERING CAM AND SPRING. OPERATED ENGINES AND CENTERED NOSE WHEEL AND VISUALLY VERIFIED CENTERED. AIRCRAFT WAS RETURNED TO SERVICE.

Part: SEQUENCE VALVE — DEFECTIVE (ZONE 700) · airframe 32,671 hrs · 3,288 cycles

NLG DOOR ADVISORY LT REMAINED ON AFTER GEAR RETRACTION AFTER TAKEOFF. PERFORMED AIR TURN BACK. MX REMOVED AND REPLACED THE NLG SOLENOID SEQUENCE VALVE. PERFORMED GEAR SWING AND OPS AND LEAK CHECK. NO DEFECTS. ACFT WAS RETURNED TO SERVICE

Part: PROXIMITY SENSOR — DEFECTIVE (MLG DOOR) · airframe 3,666 hrs · 3,279 cycles

RT GEAR DOOR DISCOVERED OPENED UPON LANDING. ALL OTHER INDICATIONS NORMAL. ACFT WAS FERRIED. MX REMOVED AND REPLACED RT MLG DOOR PROX SENSOR. OPS TEST NORMAL.

Part: CONTROL PANEL — DEFECTIVE (RT MLG) · airframe 3,662 hrs · 3,278 cycles

RT MLG DOOR OPENED ON APPROACH. MX RIGGED RT GEAR DOOR PROX SENSOR IAW AMM 32-61-06-830-801. OPS CHECK GOOD. REMOVED AND REPLACED LANDING GEAR CONTROL PNL REF 32-31-01-000-801/400 AND 801 AND PERFORMED FUNCTIONAL CHECK IN REF TO AMM 32-31-01-720-801, CHECKED GOOD.

Part: SEQUENCE VALVE — STICKING (MLG) · airframe 39 hrs · 29 cycles

AFTER TAKEOFF LT DOOR AMBER LIGHT FAILED TO EXTINGUISH, FOLLOWED QRH PROCEDURE AND EXTENDED GEAR, LT GEAR DOOR AMBER LIGHT STILL DID NOT EXTINGUISH AND RED LT LANDING GEAR WARNING REMAINED ILLUMINATED. AFTER APPROX 5 MINUTES GEAR LOCKED DOWN AND GREEN LT LIGHT ILLUMINATED. FA REPORTED VERY SLOW EXTENSION OF LT GEAR. RETURNED TO DEPARTURE. MAINTENANCE PINNED GEAR AND FLEW AIRCRAFT ON A SPECIAL FLIGHT PERMIT. MAINTENANCE WAS ABLE TO DUPLICATE THE PROBLEM ON THE GROUND, TROUBLESHOT TO THE LT SOLENOID SEQUENCE VALVE, DFDR WAS DOWNLOADED AND CONFIRMED THAT THE LT GEAR TOOK 1 MINUTE AND 8 SECONDS TO EXTEND WHICH IS CONSISTENT WITH A SOLENOID SEQUENCE VALVE STUCK IN THE (OUT OF SEQUENCE) FAULT. MAINTENANCE ALSO CHANGED THE MECHANICAL SEQUENCE VALVE AS A PRECAUTION. PERFORMED GEAR SWING AND LANDING GEAR FUNCTIONED NORMALLY; PERFORMED OPERATIONAL CHECK FLIGHT AND LANDING GEAR FUNCTIONED NORMALLY.