What happened
While performing an aerial application maneuver, the pilot of the aircraft experienced a sudden drop in fuel pressure. Simultaneously, the engine RPM decreased to between 1,800 and 1,900 rpm. Due to this loss of power, the aircraft was unable to maintain its altitude, prompting the pilot to initiate an emergency landing.
Upon impact, the aircraft landed hard and slid to a stop. A fire developed following the crash, and the pilot exited the aircraft during the onset of the post-crash fire. The pilot was not injured.
The investigation
The investigation included an examination of the aircraft and engine. Extensive thermal deformation was observed throughout the airframe and the engine components due to the fire. During the subsequent teardown and examination of the engine, investigators found no mechanical discrepancies that would have prevented the engine from operating properly prior to the impact.