Background
During a weather briefing, the non-instrument-rated pilot was advised that visual flight rules (VFR) flight was not recommended due to low clouds and adverse weather along the intended route. Despite this advisory, the pilot filed a VFR flight plan and departed Arcata, California, at 1240 Pacific Daylight Time.
Flight and Last Communication
At 1339, while in the vicinity of Wilderville, Oregon, the pilot received a weather update. He was advised of isolated thunderstorms, broken to scattered clouds at 4,000 feet with an upper layer at or above 8,000 feet, scattered rain showers along the coast with 1,000 to 2,000 feet scattered clouds, and a forecast that mountain tops would be obscured. The pilot's last transmission was at 1356 near Sexton Mountain Pass, when he requested the Medford altimeter setting. The aircraft did not arrive at its destination and was not found during an initial search.
Wreckage Discovery
The aircraft was found by hikers on April 27, 1990. It had collided with trees on steep mountain terrain at an elevation of approximately 1,800 feet. The wreckage was badly damaged by impact and fire.
Wreckage Examination
Examination of the wreckage revealed no preimpact mechanical problem. During impact, the propeller separated from the crankshaft, and both blades exhibited 'S' turn deformation, leading edge damage, and chordwise striations.