Accident Sequence
According to the pilot's report, the aircraft was lightly loaded at the time of the incident. After takeoff, the aircraft flew and climbed sluggishly. The pilot reported that he remained in ground effect in an attempt to pick up airspeed, but the aircraft failed to respond. In an effort to recover, the pilot began to dump his load of chemicals. Despite this action, the aircraft continued to settle, touched down in a field, and subsequently collided with a tree. The pilot noted that he did not think the engine was producing full rated power during the flight.
Examination Findings
An FAA airworthiness inspector examined the aircraft and engine following the incident. The inspection revealed no apparent internal engine failure. However, all spark plugs displayed excessive black soot deposits on the electrodes. Additionally, an unidentified contaminant was found throughout the fuel system. These findings suggest possible fuel or ignition issues, though the exact role in the event remains undetermined.