PIPER PA 28-140 — Huntsville, TX

What happened

A mechanic who worked for the fixed-based operator (FBO) at the airport reported that, on the day of the accident, the private pilot taxied the airplane to the maintenance hangar where he inflated the nose tire. The pilot told the mechanic he was flying the airplane to a nearby airport because someone there was interested in purchasing the airplane. No known witnesses saw the airplane take off. The air traffic control tower at the nearby airport did not have a record of the airplane landing there. The pilot was reported missing, and the wreckage was located later that evening on property adjacent to the departure airport.

The airplane came to rest inverted in a small clearing in a wooded area. The fuel selector was found in the "off" position. The left-wing fuel tank contained 2 cups of fuel, and the right-wing fuel tank contained about 4 gallons of fuel. A small amount of fuel was dripping from the right fuel cap before the airplane was righted. No evidence of fuel drainage from the left fuel tank was found. The airplane was not equipped with an ELT which likely contributed to the delay in locating the airplane. An examination of the airplane and engine did not reveal any anomalies that would have prevented normal operation. Damage to the starter housing from impact with the ring gear was consistent with slow rotation/no power at the time of impact. Based on the evidence, it is likely the engine lost power due to fuel starvation, which resulted from the pilot shutting off the fuel supply to the engine.

Although the autopsy and medical records showed that the pilot had arteriosclerotic cardiovascular disease, diabetes, and kidney stones, there was no evidence to suggest the pilot suffered an acute cardiac event or other medical incapacitation during the accident flight. A low therapeutic level of diphenhydramine, a sedating common over-the-counter antihistamine used to treat the common cold and hay fever, was detected in the pilot's heart and urine; however, it could not be determined whether the pilot was impaired by the effects of the drug at the time of the accident.

An editorial "what led to it / how to avoid it" analysis for this accident is generated separately and will appear here.