What happened
The pilot reported that the aircraft experienced an unexpected loss of engine power while cruising. Due to the failure occurring during daytime operations, the pilot elected to execute a forced landing in an open field as darkness approached. The aircraft touched down safely on the ground but subsequently nosed over during the landing roll.
The investigation
Investigative personnel examined the fuel system to determine if fuel starvation was a contributing factor. Investigators drained a total of 1-1/2 gallons of fuel from the wing fuel tanks, confirming that residual fuel remained in the system at the time of the incident.
Findings
The pilot stated that he encountered unexpected, strong headwinds during the cross-country flight. These conditions likely increased fuel consumption beyond initial estimates or extended the flight duration, leading to the power loss. The aircraft nosed over due to the nature of the forced landing in unprepared terrain.