Airplane Suddenly Entered An Un-Commanded High-G Maneuver, And He Lost Control Of The Airplane

Location: Castroville, CA Accident Number: WPR23LA128
Date & Time: March 12, 2023, 15:05 Local Registration: N55XJ
Aircraft: Jones Jay D Cassutt M 11 Injuries: 1 Serious
Flight Conducted Under: Part 91: General aviation – Personal

On March 12, 2023, at 1505 Pacific daylight time, an experimental, amateur built Cassutt M11 airplane, N55XJ, was Substantially damaged when it was involved in an accident near Castroville, California. The pilot was seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.

The pilot stated he had conducted clearing turns and was performing an aileron roll when the airplane suddenly entered an un-commanded high-g maneuver, and he lost control of the airplane. He was able to release his seat belt and parachute to the ground. The airplane impacted a muddy field. He reported the left aileron had departed the airplane. The wreckage was retained for further examination.