Accident Summary
The airplane was destroyed upon impact with terrain after an in-flight loss of control during initial climb. A post-accident fire occurred. The pilot sustained fatal injuries. The aircraft had been climbing northeast on a crosswind departure.
Witness Account
A witness reported observing the takeoff and initial climb. They stated that the airplane appeared to be performing normally and there was nothing unusual. As the aircraft began to climb, a strong wind came from the rear. The witness described the wind as a shear of at least 30 miles per hour, which caused the airplane to stop flying and spiral downward. The airplane was seen at an altitude of approximately 100 to 200 feet above ground level when it encountered the wind shear.
Weather Conditions
The wind at the time was from 260 degrees at 15 knots, with gusts to 19 knots.
Investigation Findings
An on-scene investigation revealed that an engine not listed in the aircraft's specification had been installed, along with a composite propeller. No other pre-impact anomalies were found. The engine produced thumb compression on all cylinders. Chordwise scratches and leading-edge nicks were observed on one propeller blade. Continuity of the engine and controls was confirmed.
No probable cause has been determined from the available information.