NTSB Factual Report

The pilot reported that during his return to the airport, the glider encountered heavy downdrafts. Unable to reach the airport, he elected to execute an off airport landing to a field. During the landing on rough terrain, the glider ground looped, which resulted in substantial damage to the tailboom and wings. The pilot reported no preimpact mechanical malfunctions or failures with the glider that would have precluded normal operation.

NTSB Probable Cause

The glider’s encounter with atmospheric lift conditions not sufficient to maintain flight, which resulted in a forced landing on rough terrain.