Accident Sequence
During the initial climbout phase of flight, the pilot reported experiencing a partial loss of power. Unable to maintain a sufficient rate of climb to continue the flight, the pilot performed a forced landing in a field. During the landing, the aircraft struck trees.
A witness observed a very abrupt rotation and a nose-high attitude immediately after liftoff.
Investigation Findings
Post-accident investigation failed to reveal any evidence of a mechanical malfunction that could have caused the partial power loss. However, the investigation did reveal that the aircraft's weight limitations were exceeded at the time of the accident.
Additionally, the pilot had not performed any weight and balance calculations prior to departure.