What happened
A pilot-in-command and a passenger, who was undergoing flight training, were conducting a local area flight intended to practice landings and potential autorotations. The first circuit around the airport traffic pattern was completed without incident.
While on short final approach for a subsequent landing, the helicopter experienced a sudden decrease in engine power. According to the passenger, the engine and rotor tachometer indicator needles became split and moved out of their normal operating ranges. Following this loss of power, the aircraft's rate of descent increased significantly. The helicopter struck the runway with high impact, causing it to bounce, roll over, and catch fire. The passenger survived the accident.
The investigation
An examination of the wreckage was conducted to identify any mechanical failures. Investigators found no mechanical malfunctions within the aircraft's systems. Additionally, the investigation revealed that the pilot had not operated a helicopter during the 15 months prior to the accident.