Accident Circumstances
A commercial pilot was conducting a flight in the traffic pattern to check weather conditions. While on the downwind leg, the engine lost power, according to the pilot. He attempted to return to the runway but determined he did not have sufficient power to reach it, resulting in a collision with trees.
Engine Examination
Following the accident, examination of the engine revealed no evidence of internal mechanical failure. No loss of required electrical spark was detected, and no abnormalities were found in the fuel system. The engine appeared to have been capable of normal operation at the time of impact.
Meteorological Conditions
At the time of the accident, meteorological conditions were conducive to carburetor icing. Carburetor icing can occur in certain temperature and humidity conditions, potentially affecting engine performance without leaving post-accident evidence of failure.