Incident Summary
The pilot advised that she was experiencing moderate to severe turbulence and was unable to maintain altitude. She requested heading and distance to the nearest airport, which was Apple Valley. After reporting that her door had opened in flight, radio and radar contact with the aircraft were lost.
Witness Account
A witness reported that the aircraft was in level flight before it abruptly rolled to the right. The nose pitched forward, and the aircraft continued in a nose-down attitude until it exploded into a towering red fireball.
Pilot's Operating Handbook Guidance
According to the Pilot's Operating Handbook (POH), if a door opens in flight, the pilot should slow the airspeed to reduce buffeting and then land at the nearest airport. Additionally, when encountering rough air, the pilot should slow the aircraft to maneuvering speed or slightly less, maintain control by flying attitude, and avoid abrupt maneuvers.
Weather Conditions
Weather forecasts indicated moderate to severe turbulence, strong winds, scattered to broken clouds, rain, and icing conditions.