Accident Overview
An aircraft conducting a deer survey flight experienced engine failure attributed to carburetor ice accumulation. The pilot executed a forced landing on terrain covered by approximately 20 inches of snow. During the landing, the aircraft nosed over.
Flight and Conditions
The flight was a deer survey mission. The pilot noted that icing conditions were 'perfect' for carburetor ice formation. The aircraft was operating in an environment conducive to ice buildup in the carburetor.
Carburetor Icing Factors
According to the pilot, improper use of the carburetor heat control contributed to the ice accumulation. Additionally, the pilot's reduction of power during maneuvering further facilitated ice buildup in the carburetor. These factors led to engine power loss, necessitating the forced landing.
Pilot's Recommendations
In the pilot's statement, he recommended under preventative measures that he should have been more aware of staying ahead of the engine's 'heat curve' to prevent carburetor icing. This reflects a recognition of the need for proactive carburetor heat management.