What happened
The aircraft experienced an engine malfunction shortly after takeoff, resulting in a hard landing off the side of the runway. The pilot reported that the engine began misfiring while climbing between 150 and 200 feet above ground level (AGL). In response to the loss of power, the pilot attempted to land on the remaining usable runway but was unable to complete the maneuver safely.
The investigation
Post-incident analysis focused on the mechanical state of the engine and the environmental conditions at the time of the accident. The pilot stated that he believed the power loss was caused by carburetor air blockage. Weather data confirmed that the temperature was 87 degrees Fahrenheit with a dew point of 60 degrees, conditions known to be conducive to carburetor icing even in warm weather.
Findings
The primary factor contributing to this accident was carburetor icing, which led to engine power loss. The high humidity and temperature differential created an environment where ice could form within the carburetor, restricting airflow and causing the engine to misfire. This mechanical failure occurred during a critical phase of flight, leaving the pilot with insufficient altitude to recover or select an alternative landing site.
Safety message
Carburetor icing can occur even when ambient temperatures are well above freezing. Pilots operating aircraft equipped with carburetors should monitor dew point spread closely and use carburetor heat as a preventive measure, particularly during climb-out phases where power settings are high and airflow is reduced.