Sep 19, 2012
Accident
Destroyed Mammoth Lakes, CA
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The pilot’s inability to maintain sufficient main rotor rpm while maneuvering in highdensity altitude conditions, which resulted in a precautionary landing and subsequent rollover.
NTSB WPR12LA426