Sequence of Events
While on an extended downwind leg for landing, the airplane experienced a power failure after the pilot applied throttle. In response, the pilot executed the prelanding and emergency checklists, but engine power was not restored. According to the same account, the pilot turned the fuel selector to the "off" position before initiating a forced landing. The airplane was then landed in a slough located west of the airport.
During the landing, the nose wheel became caught in rough terrain, causing the airplane to come to rest inverted. No further details about the pilot or occupants were provided.
Post-Crash Examination
Fuel had been added to the airplane prior to the flight. A post-crash examination revealed that the fuel tanks carried a supply 1 inch below the tabs. After the accident, the airplane was successfully started once it was righted, but it ran roughly. The investigation did not specify the aircraft type, registration, number of engines, date, operator, location, or any injuries or fatalities.