Flight History
The pilot reported that the airplane had recently returned to service after being restored by a licensed airframe and powerplant mechanic with inspection authorization. Prior to the accident flight, the pilot performed several takeoffs and landings, during which the airplane operated normally. On the accident flight, the pilot took off and flew to another airport, where he completed a simulated instrument approach to approximately 50 feet above the runway. After the approach, he commenced a go-around. At an altitude of about 300 feet above the ground, while over the departure end of the runway, the engine experienced a partial power loss.
Forced Landing
The pilot maneuvered the airplane for a forced landing in a hay field. During the landing roll, the horizontal stabilizer struck a hay bale, resulting in substantial damage to the empennage.
Post-Accident Examination
A subsequent examination of the wreckage by a Federal Aviation Administration inspector revealed that a cotter pin was not installed on the throttle arm retaining nut. The throttle arm retaining nut was finger tight, and the throttle arm was loose.