CEN10LA497 · Miller Charles W VANS RV-7A

The private pilot was on a 968-mile cross-country flight and stopped at an airport to purchase fuel before departing on the final leg of the trip. A witness talked to the pilot on the radio as he approached the airport and again after he landed. She stated that the pilot acted confused, appeared tired, and that he even commented on how tired he was from flying all day. After refueling, the pilot had to wait approximately 3 hours and 45 minutes for storms to move through the area. It was then dark outside and, by the time the pilot departed, he had been traveling for almost 12 hours. A witness saw the airplane take off and said it used very little runway before it climbed to 300 or 400 feet before making a left turn. The witness stated that the engine appeared to be producing takeoff power and that everything sounded normal. The airplane was later reported missing and found four days later in a heavily wooded area about 500 feet west of the runway. An on-scene examination revealed no preaccident anomalies with the engine or the airplane. A review of the pilot's logbook revealed that he had accrued a total of 274.5 hours, of which, 5.5 hours were at night. The pilot's last logged flight at night (.7 hours) was almost exactly one year prior to the accident. Positive postaccident toxicology tests were likely due to post-mortem putrefaction, although insufficient specimens existed to determine conclusively.

Verbatim NTSB analysis and probable cause from the NTSB dataset