Accident Sequence
The accident occurred when the aircraft contacted trees during an uncontrolled descent. This event took place approximately 17 minutes after takeoff. A witness reported hearing the engine running at a high revolutions per minute. The wreckage was not discovered until September 18, 1985.
Wreckage Analysis
Investigators conducted a post-accident inspection of the wreckage. No mechanical failure or malfunction was identified. The airspeed indicator found at the accident site showed a reading of 140 miles per hour.
Pilot Medical History
The pilot was receiving medical treatment for epileptic seizures. According to the pilot's physician, the pilot's condition was considered stable as long as he maintained a therapeutic level through medication. The pilot's most recent examination, conducted on September 11, 1985, indicated a normal therapeutic level. The coroner's autopsy report stated that a contributing cause of the accident was most probably a heart attack or congestive heart failure.