Incident Overview
A private pilot with 1,058 hours of flight experience observed a gradual loss of engine power during a flight. Unable to restore full engine power, the pilot attempted to fly to the nearest airfield. While en route, the engine experienced a total loss of engine power.
Landing and Aftermath
During the landing roll, the nose landing gear dug into soft ground. The airplane nosed over and came to rest inverted. The aircraft sustained damage, but the extent is not specified in the source.
Investigation
The engine was examined and run three times by a representative of the engine manufacturer. The carburetor was also shipped to the manufacturer for examination and bench flow testing. Both examinations were conducted under government oversight. However, the reason for the total loss of engine power could not be determined.