Incident Details
The aircraft took off from a runway measuring 3560 feet in length. According to the pilot, after liftoff the aircraft was unable to turn left and began an uncommanded right turn. The pilot climbed to approximately 150 feet above ground level, but the aircraft then began to descend while continuing the right turn. During this descent, the aircraft struck a utility pole and subsequently impacted the ground.
Weight and Performance
The aircraft was approximately 180 pounds above its maximum recommended takeoff gross weight. The takeoff roll consumed almost the entire runway length, leaving minimal margin.
Post-Accident Examination
A teardown of the engine revealed no evidence of any mechanical issue that could have caused an in-flight power loss or anomaly. The inspection found nothing that would have prevented normal engine operation.
Pilot and Aircraft Documentation
The pilot was operating with an expired medical certificate. Additionally, the pilot had not completed a biennial flight review within the preceding 24 months. The aircraft itself had not undergone an annual inspection since 1981, indicating a lapse in required maintenance documentation.
Summary
The accident sequence involved an overweight takeoff, directional control difficulties after liftoff, and a collision with a utility pole. The engine examination ruled out a mechanical cause for the loss of control. Regulatory compliance issues were identified regarding the pilot's medical and flight review status, as well as the aircraft's inspection history.