Accident Details
Shortly after takeoff, the airplane's engine lost power. The pilot executed a forced landing in an open field. During the landing, the airplane collided with the terrain and cartwheeled. The initial ground impact mark was located 64 inches from a fence.
Mechanical Findings
Examination revealed that the bolt connecting the throttle arm to the throttle rod end was missing. A bolt identified as the proper type for this connection was found resting against the firewall. This bolt was undamaged. According to design specifications, the bolt should be secured with a castellated nut and a cotter pin. Neither the nut nor the cotter pin was found.
Inspection History
An annual inspection had been performed 5 flight hours prior to the accident.
Landing Site Characteristics
The open field used for the forced landing is surrounded by trees approximately 100 feet tall. The field contains barbed wire fences spaced 300 to 400 feet apart.