Aug 6, 2017
Accident
Substantial Pocatello, ID
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR PUBU
Probable Cause
Maintenance personnel's failure to secure hardware, which resulted in an uncommanded upward deflection of the left elevator and aft movement of the control yoke and inhibited the flight crew from adjusting the airplane's pitch attitude in flight. Contributing to the accident was the lack of maintenance oversight, which should have identified the unsecured hardware before flight.
NTSB WPR17LA180