Aug 9, 2023
Accident
Substantial Guernsey, CA
Injuries1 minor
Phase of Flight-
ConditionsVMC
OperationFAR 137
Probable Cause
The pilot’s overpitching of the main rotor blades while maneuvering at low altitude in a high-temperature environment at high gross weight, which resulted in a reduction of engine and rotor speed, excessive main rotor blade flapping, mast bumping, and impact with terrain.
NTSB WPR23LA313