Primary finding
Probable cause
The tail wheel assembly’s fractured bolt which resulted in the pilot’s loss of directional control during landing.
Investigator assessment
Analysis narrative
During the landing roll on a dirt strip, the pilot felt the airplane’s tail section “bottom out”. The pilot lost rudder control, and the airplane veered off the strip into vegetation and ground looped. During the ground loop, the left wing struck the ground, which resulted in substantial damage to the left wing and aileron. A postaccident examination of the airplane found that one of the bolts which secured the tail wheel spring to the tail wheel housing assembly had fractured. The pilot did not submit the National Transportation Safety Board Pilot/Operator Aircraft Accident/Incident Report Form 6120.1.