N914FX

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 28,136 hrs · 30,298 cycles

O2 BOTTLE AND REGULATOR LEAKING. REPLACED O2 BOTTLE AND O2 REGULATOR. OPS AND LEAK CHECK GOOD.

Part: LANDING GEAR — FAULTED · airframe 28,119 hrs · 30,277 cycles

LANDING GEAR FAILED TO EXTEND. EMERGENCY EXTENSION PERFORMED NORMALLY. TROUBLESHOT SYSTEM. FOUND WIRE 3231-6017 TO BE BROKEN IN HYDRAULICS BAY. REPAIRED WIRE 3231-6017 USING ENVIRONMENTAL SPLICE. PERFORMED NORMAL EXTENSION AND RETRACTION OF LANDING GEAR. OPS CHECK GOOD.

Part: OXYGEN BOTTLE — LEAKING · airframe 27,564 hrs · 29,680 cycles

DURING SERVICING OF O2 CYLINDER, IT WAS DISCOVERED THAT A LOUD STREAM OF AIR WAS ESCAPING FROM SMALL HOLE IN BACK OF CYLINDER VALVE NECK. REMOVED AND REPLACED O2 CYLINDER. PERFORMED LEAK CHECK WITH NO LEAKS DETECTED.

Part: BRAKE SYS — CONTAMINATED (MLG BRAKE) · airframe 27,050 hrs · 29,155 cycles

PILOT'S LH BRAKE INEFFECTIVE. MAINTENANCE PERFORMED LOW-PRESSURE BRAKE BLEED - OPS CHECKS GOOD.

Part: RIB — CRACKED (LT AILERON) · airframe 25,420 hrs · 27,215 cycles

LT AILERON RIB 5B CRACKED. R & R LT AILERON IAW JIC 57-61-00.

Part: SKIN — CHAFED (LT WING) · airframe 25,420 hrs · 27,215 cycles

FLAP FAIRING 553AB CHAFED INTO WING. PERFORMED BLENDOUT, SMOOTHING OF CHAFED AREAS AT 553AB IAW SRM 512158-02-001-A01 AND SRI CE-861/16-27126. ALODINED IAW SRM 512117-02-001-A01. REQUIRES NDT. PERFORMED EDDY CURRENT OF AFFECTED AREA IAW NDTM 51-00. NO CRACKS NOTED. UT THICKNESS CHECK OF AFFECTED AREA COMPLETED.

Part: RIB — CRACKED (LT AILERON) · airframe 25,420 hrs · 27,215 cycles

LT AILERON RIB 1B CRACKED. R & R LT AILERON IAW JIC 57-61-00.

Part: SPAR — CORRODED (RT AILERON) · airframe 25,420 hrs · 27,215 cycles

RIGHT AILERON FRONT SPAR DISCOVERED TO HAVE EXFOLIATION, FILLIFORM CORROSION, DURING VISUAL INSPECTION. REMOVED FWD SPAR IAW SRM 51-21-42. BLENDED AREAS OF CORROSION ON FWD OB END OF SPAR IAW DRAWING REV 1R, AND 8110-3 SSR DOCUMENT D1603010, REV 1R. ALODINE AND PRIMED SPAR IAW SRM 51-21-17 ANBD 51-21-27. INSTALLED FWD SPAR IAW SRM 51-25-01 ABD 51-25-03.

Part: FITTING — CORRODED (RT AILERON) · airframe 25,420 hrs · 27,215 cycles

RIGHT AILERON TEE PICK-UP FITTINGS DISCOVERED TO HAVE EXFOLIATION CORROSION DURING VISUAL INSPECTION. FABRICATED RT AILERON CENTER TEE PICK-UPS IAW SRM 5756110-01-001 AND SAMPLE. REPLACED RT AILERON CENTER TEE PICK-UPS AT RIBS 11 AND 12 IAW SRM 512503-02-001-A01.

Part: ACCUMULATOR — LOW (HYD SYSTEM) · airframe 24,777 hrs · 26,421 cycles

ON LANDING, NOSE WHEEL STEERING FAILED TO RESPOND TO INPUT AND ACFT VEERED TO LEFT. APPLICATION OF NORMAL BRAKE ON PILOT AND CO-PILOT SIDE FAILED TO SLOW AND EMERGENCY BRAKES REQUIRED TO STOP. ONCE TAXI ATTEMPT WAS RESUMED, NOSE WHEEL STEERING AND NORMAL BRAKING RESUMED. TROUBLESHOOTING FOUND AFT HYDRAULIC ACCUMULATOR LOW. SERVICED ACCUMULATOR IAW JIC 12-14-29 SRU 10000. INSPECTED BRAKES AND NOSE LANDING GEAR FOR LEAKS, NO LEAKS NOTED. TAXIED ACFT AND PERFORMED OPS TEST OF NORMAL BRAKING IAW JIC 32-42-00 OPT 10000. CHECKED NOSE WHEEL STEERING WHILE TAXIING THE SYSTEM CHECKED NORMAL.

Part: TIRE — SEPARATED (NLG) · airframe 24,569 hrs · 26,127 cycles

DURING TAKEOFF OF FLIGHT 8553 MSP-DLH THE NOSE TIRE SEPARTED FROM THE AIRCRAFT. THE CREW DECLARED AN EMERGENCY. THE AIRCRAFT LANDED IN DLH WITH NO FURTHER INCIDENTS.

Part: WIRE HARNESS — SHORTED (NLG)

RETURN TO BLOCKS, FLIGHT 7826 GPI TO GTF: AFTER TAXIING TO THE RUNWAY AND COMPLETION OF THE TAXI CHECKLIST ITEMS. THE CREW NOTICED A RAPID INCREASE IN TAT TEMP (TURBINE AIR TEMP) AND THE AFCS (AUTOMATIC FLIGHT CONTROL SYSTEM) SHOWED "DADC (DIGITAL AIR DATA COMPUTER) INVALID." BOTH ENGINE TORQUE BUGS INDICATED 20% AND WERE ERRONEOUS. AFTER A SYSTEM RE-BOOT FAILED TO CORRECT THE PROBLEM, A DECISION TO RETURN TO BLOCKS FOR MAINTENANCE WAS MADE. TROUBLESHOOTING IS STILL ONGOING, CORRECTIVE ACTION TO FOLLOW. FOUND NLG WIRE HARNESS CONNECTOR RECEPTACLE AT 5044 VC INTERNALLY SHORTED TO GROUND. REPLACED NLG WIRE HARNESS CONNECTOR RECEPTACLE 5004 VC. (S)

Part: SEAT TRACK — DAMAGED (FUSELAGE)

FOUND DURING HEAVY CHECK. MAJOR REPAIR. FOUND TOOL DAMAGE (MISDRILLED HOLE) (2) PLACES ON UPPER FLANGE OF LT OB SEAT TRACK AT FLOOR CROSSBEAMS 20 AND 21. REMOVED AND REPLACED DAMAGED SECTION OF SEAT TRACK FROM END AT FRAME 23 TO PREVIOUSLY INSTALLED SPLICE BETWEEN FRAMES 18 AND 19. CUT OUT DAMAGED SECTION OF FLOORBEAMS 20 AND 21 UNDER LT OB SEAT TRACK TO LT OB END. FABRICATED REPAIR SPLICE AND REPLACED THE LT SIDE OF FLOORBEAMS 20 AND 21. SEAT TRACK PN S53375001200, FLOORBEAM PN S53372411200. WO: 200039, 200040. (K)

Part: FLOORBEAM — CRACKED (FUSELAGE)

FOUND DURING HEAVY CHECK. MAJOR REPAIR. EO 5315-01: THE RT OB LONGITUDINAL FLOOR BEAM IS CRACKED IN (4) PLACES. AT FRAME 21 AND 24 ALSO FWD AND AFT OF FRAME 30. THE LT OB LONGITUDINAL FLOORBEAM IS CRACKED IN (2) PLACES. AT FRAME 28 AND FRAME 34. REMOVED AND REPLACED DAMAGED SECTIONS OF THE FLOORBEAM BY ADDING SPLICES IAW EO 5315-01. REMOVED SECTIONS RT BEAM FROM FRAME 21 TO 22, 24 TO 25 AND 29 TO 31. REMOVED SECTIONS OF THE LT BEAM FROM FRAMES 25 TO 28 AND 34 TO 36. RT BEAM PN WASBV-03, LT BEAM PN WASB-01. WO: 200042-44,46,50. (K)

Part: LINE — BROKEN (METERING VALVE)

ON TAXI OUT ON FLIGHT NR 7091; CREW DISCOVERED NORMAL BRAKES AND GREEN HYDRAULICS LOST DURING BRAKE CHECK. THEY TAXIED BACK USING EMERGENCY HAND BRAKE TO PARK AIRCRAFT. AIRCRAFT PARKED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED LT OB METERING VALVE OUTLET PIPE. AIRCRAFT RETURNED TO SERVICE. (K)

Part: CONTROL LEVER — MALFUNCTIONED (MLG)

AIR TURN BACK YVR, AFTER DEPARTURE LANDING GEAR SELECTED UP AND RECEIVED THREE GREEN AND RED INDICATIONS ON BOTH PRIMARY AND SECONDARY INDICATIONS. CYCLED THE GEAR SELECTOR WITH THE SAME RESULTS. AN EMERGENCY WAS DECLARED AND AIRCRAFT RETURNED TO THE AIRFIELD. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LANDING GEAR CONTROL LEVER. THE LANDING GEAR SELECTOR VALVE WAS REPLACED AS A PRECAUTION. AIRCRAFT RETURNED TO SERVICE. (M)