Circumstances
The pilot was conducting a night cross-country flight. About 9 miles south of his destination, he reported a break in the layer of clouds below him and canceled his instrument flight rules (IFR) flight plan. Radar data indicated that the airplane subsequently made a 360-degree descending left turn from 5,800 feet to 4,700 feet, after which radar contact was lost. The airplane then impacted trees and rising terrain at an elevation of 3,896 feet at night.
Weather
Weather conditions at the destination airport, which has an elevation of 2,857 feet, included a broken cloud layer at 1,900 feet. No other weather information was provided.
Examination
Examination of the airplane revealed no mechanical deficiencies.