Glider wing strike during landing in quartering tailwind (N30LH)

What happened

During the landing phase of flight, the pilot reported that the right wing of the glider made initial contact with the ground. This impact caused the aircraft to initiate a right turn. As the sequence continued, the left wing struck a truck tire located on the airfield, which forced the glider into an abrupt 70-degree turn to the left. The aircraft eventually came to a stop after the right wing collided with a barn structure.

Findings

Post-incident information indicated that the pilot was operating in challenging weather conditions at the time of the accident. Specifically, the glider landed into a quartering tailwind component. Wind data provided later stated the wind speed was 15 knots, with gusts reaching up to 20 knots. These wind conditions likely contributed to the loss of directional control and the subsequent ground loop.