Incident Summary
The pilot reported experiencing a partial power loss while on the downwind leg of a VFR traffic pattern. Shortly after entering downwind, the landing gear was lowered. As the aircraft's speed decreased below 132 knots, the pilot advanced the throttles, but there was no response. The right propeller rpm suddenly surged to 3200 before eventually recovering to 2700.
Pilot Actions and Collision
Believing that too much altitude had been lost, the pilot moved all controls forward, resulting in only a partial response. Subsequently, the aircraft collided with trees.
Post-Accident Investigation
A post-accident investigation conducted by the FAA and the aircraft manufacturer did not reveal any malfunctions or abnormalities in the aircraft's systems or components.