What happened
On 8 May 2011, a Wolf WII Boredom Fighter, registration G-BMZX, was performing a private flight at Henham Park, Southwold, Suffolk. During the landing phase, the aircraft touched down at a speed of approximately 25 mph. As the aircraft was rolling out, it began to yaw towards the left. In an attempt to correct the direction, the pilot applied full right braking, but the swing could not be arrested, resulting in a ground loop.
During the maneuver, the right lower wingtip made contact with the ground, causing the lower right wing spars to break. The pilot reported being momentarily distracted by a marshaller during the rollout. Following the incident, the pilot successfully shut off the fuel and electrical systems and exited the aircraft without injury.
The investigation
The investigation was based on the aircraft accident report submitted by the pilot. The examination focused on the sequence of the landing roll and the mechanical impact on the airframe. The investigation established that the aircraft's right lower wing spars were damaged due to the wingtip striking the ground during the uncontrolled leftward swing.