Accident Overview
A cross-country flight encountered engine trouble when the engine began to miss and eventually lost power. The aircraft was operating in instrument meteorological conditions (IMC) with visible snow and ice crystals present.
Sequence of Events
After the engine lost power, the pilot conducted an emergency landing at night. The landing was made in an open, rough field. During the landing roll, the aircraft sustained damage.
Post-Crash Inspection
A post-crash inspection of the engine revealed ice accumulation above the throttle valve and below the discharge nozzle in the center of the carburetor throat at the intake manifold. The carburetor was equipped with an alternate air system.
Additional Information
No other details about the aircraft, occupants, or operator were provided in the source.