Primary finding
Probable cause
A loss of engine power due to fuel exhaustion as a result of a fuel tank leak. Contributing to the accident was the reported malfunction of the fuel gauge.
Investigator assessment
Analysis narrative
The pilot reported that he had his fuel tanks filled and that he checked them during his preflight prior to departure on a cross country flight. He experienced a loss of engine power about 3.25 hours into the flight and performed a forced landing. The airplane sustained substantial damage when the airplane impacted a "hidden gully." The pilot reported, "At the time of the engine failure, the right tank was registering slightly over 1/2 full." According to the pilot the left wing had a stain from gasoline "that had not been there prior to takeoff."
Source record
Factual narrative
The pilot reported that he had his fuel tanks filled and that he checked them during his preflight prior to departure on a cross country flight. He experienced a loss of engine power about 3.25 hours into the flight and performed a forced landing. The airplane sustained substantial damage when the airplane impacted a "hidden gully." The pilot reported, "At the time of the engine failure, the right tank was registering slightly over 1/2 full." According to the pilot the left wing had a stain from gasoline "that had not been there prior to takeoff."