Primary finding
Probable cause
A loss of engine power due to fuel starvation as a result of a loose fuel line fitting.
Investigator assessment
Analysis narrative
The pilot stated that the engine began to gradually lose power shortly after takeoff and that he could smell raw fuel. As the pilot turned back to the airport, the engine stopped running, and he made a forced landing to a field short of the runway. During the landing, the airplane nosed over and the vertical stabilizer was bent. A postaccident examination of the engine revealed a fitting that secured the main fuel line to the engine was loose and leaking fuel. The interruption of fuel was enough to cause the loss of engine power.
Source record
Factual narrative
The pilot stated the engine began to gradually lose power shortly after takeoff and he could smell raw fuel. As the pilot turned back to the airport, the engine stopped running and he made a forced landing to a muddy field short of the runway. During the landing, the airplane nosed over and the vertical stabilizer was bent. A postaccident examination of the engine revealed a fitting that secured the main fuel line to the engine was loose and leaking fuel.