Apr 29, 2016
Incident
San Carlos, CA
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The failure of maintenance personnel to properly install and secure the input swivel boot on the swivel joint, which resulted in excessive vibration that led to fatigue cracks and failure of the throttle cable.
NTSB WPR16IA100