After flying to Spanhoe Airfield, Northamptonshire, the pilot of G-EEEK pitched the aircraft into a vertical climb and completed a manoeuvre from which the aircraft entered an upright flat spin to the left. The aircraft was not recovered before it struck the ground, and the pilot was fatally injured.
The investigation was unable to establish why the pilot flew such manoeuvres, unapproved and at low level. It was not possible to exclude a control restriction or a pilot incapacitation for the lack of sufficient recovery before the aircraft struck the ground.