Jun 21, 2001
Accident
Substantial Mesa, AZ
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
a loss of power for unexplained reasons. Also causal was the CFI's operation of the helicopter in a region of the height/velocity curve where a successful autorotation could not be accomplished. A factor in the accident was the high density altitude.
NTSB LAX01LA216