Final
None
Aug 17, 2024
N782CK accident at Istanbul, Türkiye
Boeing 747-4HQF — Miscellaneous/other at Istanbul, Türkiye
DateAug 17, 2024
Tail numberN782CK
AircraftBoeing 747-4HQF · Boeing 747
LocationIstanbul, Türkiye
Phase of flightEnroute
OperationPart 121
InjuriesNone
NTSB caseDCA24LA293
Probable cause
The fatigue failure of multiple hinge ribs associated with the right outboard aileron, which resulted in abnormal aileron movement and airframe vibration. Contributing to the failure was the mis-rigged condition of the right outboard aileron, which increased operational loads on the hinge fittings during cruise flight.
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