Overview
A nighttime cargo flight ended after the aircraft collided with rising terrain. The flight was operating between State College and Pittsburgh, a route the pilot flew nightly. Witnesses observed the aircraft at low altitude, just above treetops, for about five miles before the collision.
Flight Description
The aircraft was flying in a southeast direction when it struck terrain at an elevation of approximately 1,250 feet. The wreckage was scattered over a distance of 375 feet, oriented on a magnetic heading of 160°. The destination, Pittsburgh, lies southwest of the departure point, State College. No evidence of aircraft malfunction was disclosed.
Witness Observations
Multiple witnesses reported hearing engine sounds and seeing lights on the aircraft. The altitude was described as being just above the treetops. Witnesses also noted that the pilot appeared well rested and was in good spirits before the flight.
Cargo and Pilot Information
The aircraft carried 1,902 pounds of cargo, which included 65 pounds of dry ice contained in styrofoam boxes. The pilot operated a business during the day and flew nightly between State College and Pittsburgh, returning the following morning. Autopsy and toxicological findings were negative.
Probable Cause
The official investigation determined that the collision occurred during a descent phase in normal operations. Contributing factors included high terrain, rising terrain, the pilot not maintaining altitude, improper clearance, and the performance of a low pass.