N491MC
Registered owner: M&C DRONE SERVICES LLC, IN (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
4 reports on file, 1999-09-21 – 2002-11-15.
Part: PDU — FAILED (NR 1 LE FLAP)
AIR TURNBACK, AFTER TAKEOFF DURING CLIMB, LEFT OUTBOARD GROUP FAILED TO RETRACT. STATUS MESSAGE 'FLAPS PRIM TO LE FLAP DRIVE'. AFTER CYCLING FLAPS BOTH OUTBOARD GROUPS FAILED. AIRCRAFT RETURNED TO ANC. FUEL DUMPED 83,000 KGS. REMOVED AND REPLACED LEFT NR 1 LEADING EDGE PDU IAW MM 27-81-03. ADJUSTED TORQUE TUBES, CHECKED SEQUENCE OF FLAPS. ALL OPS OK. GROUND OPS NORMAL. (M)
Part: WEB — CRACKED (BS2658 ATLBL25)
DURING ROUTINE INSPECTION AT CURRENT C CHECK, FOUND LOWER BULKHEAD WEB CRACKED 0.60 INCH LONG AT BS 2658, BETWEEN WL 260 AND 265 AND BETWEEN L/S LBL 25 AND LBL 30. CUT WAY CRACKED AREA. PERFORMED DYE CHECK INSPECTION OF CUT-OUT AREA PER SOPM 20-20-20. NO ADDITIONAL CRACKING FOUND. FABRICATED FILLER, REPAIR DOUBLER AND ANGLE. INSTALLED PER STANDARD SRM. REFINISHED PER SRM.
Part: PDU — FAILED (LT TE FLAP)
FLT FX076 - HKG-ANC - ON DEPARTURE FROM HKG AT FL290, AUTO-PILOT AND AUTO-THROTTLE DISENGAGED AND WOULD NOT RE-ENGAGE. TRIED BOTH FMC'S, BUT NO HELP. RETURNED TO HKG AND ON APPROACH THERE WAS NO FLAP POSITION INDICATION. TRIED TO CONFIRM FLAP POSITION VISUALLY. FLAPS WERE NOT MOVING EXTENDED FLAP USING ALTERNATE METHOD. BOTH FLIGHT DIRECTORS DISENGAGED REPEATEDLY. FLEW RAW DATA APPROACH. MAINTENANCE FOUND NR 3 LT PDU INOPERATIVE. REPLACED PDU AND PERFORMED FCU, FCC, FLIGHT DIRECTOR, AUTO PILOT AND FMC CHECKS AND ALL OPERATIONS NOW NORMAL. LOSS OF FLAPS BELIEVED DUE TO CYCLING OF ALTERNATE FLAPS. DISCREPANCIES CLEARED AND AIRCRAFT RELEASED FOR DISPATCH. (M)
Part: SAFETY WIRE — BROKEN (TE AFT FLAP)
INSPECTED ACFT PER ATLAS AIR FCD 99-17. FOUND FOLLOWING AFT FLAP TRACK CARRIAGE BOGIE PIN ASSYS WITH FAILED SAFETY WIRE AT 5 POSITIONS: OUTBOARD PIN (WIRE STRETCHED, TORQUE ON SAFETY BOLT 140 INCHES/POUNDS); OUTBOARD PIN (WIRE BROKEN, TORQUE ON BOLT OK); INBOARD PIN (WIRE BROKEN, TORQUE ON BOLT OK); OUTBOARD PIN (WIRE BROKEN, TORQUE OK); INBOARD PIN (WIRE BROKEN, TORQUE ON SAFETY BOLT 80 INCHES/POUNDS). AIRCRAFT REPAIRED IAW ATLAS AIR FCD 99-17. (REFERENCE IPC 27-51-28-01). (X)