Oct 7, 2012
Accident
Substantial Shady Cove, OR
Injuries1 minor
Phase of Flight-
ConditionsVMC
OperationFAR 133
Probable Cause
The separation of the tail rotor gearbox and tail rotor assembly as a result of fatigue to the tail rotor gearbox input quill assembly attachment studs.
NTSB WPR13FA006