Accident Details
The pilot of the accident aircraft reported that during arrival, he was receiving vectors for an instrument landing system (ILS) when he entered a descent from 9,000 to 8,500 feet mean sea level (MSL). He entered clouds during the descent and applied carburetor heat immediately before entering the clouds. The aircraft remained in weather for about 15 minutes while on radar vectors.
Pilot Account
During the time in weather, a small amount of ice formed on the wings, which the pilot described as looking like frost. He stated that he was unable to maintain an assigned altitude of 8,000 feet, which he believed was due to carburetor ice and a resulting loss of power. Subsequently, he made a forced landing in an open field, during which the aircraft collided with a fence.
Post-Accident Inspection
After the accident, the throttle, mixture, and carburetor heat controls were checked and found to operate normally. No part failure or malfunction was discovered during the inspection.