Sequence of Events
The pilot reported descending into a valley and applying full power to climb. Shortly after throttle application, the engine experienced a partial power loss, with revolutions per minute (RPM) decreasing to about 1,650. Believing that a complete power loss was imminent, the pilot chose to land straight ahead. The aircraft struck trees and came to rest on steep sloping terrain.
Engine Performance
During a post-accident examination, the engine operated satisfactorily, showing no mechanical faults. The pilot stated that he did not use carburetor heat during the flight.
Environmental Factors
The local temperature was recorded at 77 degrees Fahrenheit, with a dew point of 42 degrees Fahrenheit. According to icing probability data, these atmospheric conditions were conducive to the formation of induction icing.