What happened
While within three miles of the intended landing site, the pilot was performing the before-landing checklist when the engine experienced two or three surges up to 2,700 rpm. Following these surges, the engine suffered a complete loss of power. The pilot determined that a forced landing in a nearby corn field was the most viable option. The aircraft successfully reached the field, but the impact resulted in substantial damage to the airframe.
The investigation
Following the accident, FAA inspectors examined the aircraft and confirmed that adequate fuel levels were present on board. A detailed inspection of the engine, fuel, ignition, and airframe components identified a mechanical issue with the fuel selector cover assembly. This assembly was found to be loose and missing several mounting screws, which allowed it to shift aft of its intended position. This displacement rendered the mechanical safety stop inoperative, meaning the selector could be inadvertently moved to the "off" position.
Additionally, a review of the aircraft maintenance logs showed that the seats, door panels, plastic components, and carpeting had recently been removed for cleaning or replacement.