Nov 5, 2006
Accident
Substantial Apple Valley, CA
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
the pilot's improper use of the collective control during a practice hover autorotation, which resulted in a hard landing. A factor in the accident was the certificated flight instructor's inadequate supervision of the maneuver.
NTSB LAX07TA029