Incident Overview
A pilot attempted to start an airplane but was unsuccessful because of a weak battery. He stated that he moved the throttle to the closed position and exited the aircraft, leaving his passenger inside. The pilot then manually rotated the propeller, and the engine started.
Sequence of Events
After the engine started, the pilot moved away from the airplane. The airplane began moving across the airstrip. The passenger, seeing trees ahead, jumped from the airplane. Subsequently, the airplane contacted the trees and came to a stop.
Pilot's Account
The pilot added that he may have "bumped the throttle" as he was exiting the airplane.