N813SP - 2001 Aircraft Aircraft Registration

The pilot's inadequate remedial action to disconnect the autopilot during an uncommanded altitude deviation while in cruise flight. Factors in the accident were activation of the autopilot; the pilot's lack of familiarity with the airplane's autopilot system; her failure to attain the proper touchdown point during an emergency landing, and delayed go-around resulting in an overrun and collision with trees; the operator's insufficient training standards for the airplane, and the pilot's flight instructor's failure to provide adequate upgrade/transition training in the airplane.