What happened
The incident occurred during an agricultural aviation operation involving an aerial application flight. While the pilot was executing a turn-around maneuver, the powerplant appeared to lose power. The aircraft subsequently stalled and collided with the terrain. After the impact, the aircraft slid to a stop before bursting into flames.
The investigation
Post-accident examination of the engine failed to reveal any mechanical malfunctions or failures that would account for the loss of power. This finding effectively ruled out internal engine failure as the primary cause of the incident.
Findings
Meteorological conditions at the time of the accident were conducive to carburetor icing. Given the lack of mechanical failure and the presence of weather conditions favorable to ice formation, it is determined that the power loss was likely due to carburetor ice accumulation. The pilot sustained 1 fatal injury in the crash.
Safety message
This incident highlights the critical importance of monitoring weather conditions for potential icing hazards during agricultural operations, even when temperatures may not appear critically low. Pilots should remain vigilant for signs of power loss and be prepared to apply carburetor heat immediately if suspected.