Accident Sequence
The pilot departed on a night visual flight rules (VFR) flight from Steubenville, Ohio, destined for Williamsport, Pennsylvania, navigating via the Indian Head VOR. The aircraft flew past the VOR and subsequently collided with trees and terrain while heading back toward the VOR and the departure airport. Impact occurred with an unlighted ridge at an elevation of approximately 2,800 feet mean sea level.
Weather Conditions
At the time of the accident, both the sun and the moon were below the horizon. A weather observation taken concurrently reported cloud layers at 1,000 feet, 2,500 feet, and 3,300 feet with mist. One witness noted that the ridgeline was partially obscured by clouds.
Witness Observations
A witness located about half a mile from the accident site reported hearing the aircraft but not seeing it. The witness stated: "The engine was revved up -- really loud -- I mean max. I kept looking for the plane, but I never saw it." Additionally, five different witnesses described the pilot's propensity to sleep at the flight controls.
Examination
Examination of the wreckage and the aircraft's engine revealed no pre-impact anomalies.