May 23, 2014
Accident
Substantial Waitsburg, WA
Injuries1 minor
Phase of Flight-
ConditionsVMC
OperationFAR 137
Probable Cause
An extreme vibration immediately after entering forward flight for reasons that could not be determined because postaccident examination of the helicopter did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot’s inability to maintain helicopter control during the landing.
NTSB WPR14LA206