Nov 1, 2012
Accident
Substantial Alexander City, AL
Injuries1 serious, 1 minor
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The pilot’s delayed decision to initiate an autorotation and her subsequent improper conduct of the autorotation, which resulted in a hard landing, after the helicopter started vibrating for reasons that could not be determined because postaccident examinations revealed no anomalies that would have precluded normal operation.
NTSB ERA13LA045