Accident Overview
A pilot reported that after performing a preflight inspection and starting the engine, he allowed it to idle for 10 minutes before taxiing to the runway. After a run-up, the pilot departed. At an altitude of approximately 150 feet above the ground, the engine lost all power.
Investigation Findings
An FAA inspector examined the wreckage and found no pre-impact mechanical malfunctions. Substantial fuel was onboard, and no evidence of fuel contamination was noted. The engine, manufactured in 1963, had accrued about 800 hours since its last overhaul, which was performed sometime during the 1970s, according to the owner.
Fuel Valve Position
A witness reported that upon first arriving at the accident site, the fuel valve was in the 'on' position. The pilot, however, believed that the fuel valve might have vibrated partially closed during the accident flight.
No other factors contributing to the loss of power were identified.