Engine Power Loss
While cruising at 7,500 feet above mean sea level at night, the engine lost power. The pilot reported an indication of about 1,800 RPM at the time of the power loss.
Forced Landing and Impact
During the subsequent forced landing, the aircraft touched down on steep, rocky soil. It bounced, and after a second touchdown, the aircraft nosed over.
Pilot Interviews and Statements
In an interview approximately two hours after the accident, the pilot reported that he may not have used carburetor heat while attempting to restart the engine. However, in a later written statement, he indicated that he "pushed in carb heat" during the restart attempt.
Environmental Conditions
The temperature was 27 degrees Fahrenheit, but the dew point was not determined.
Post-Accident Examination
When the fuel system was checked, no contamination was found. However, during impact, the firewall sump had ruptured and the carburetor was broken away from the engine. An engine teardown revealed no preimpact malfunction or failure.