Primary finding
Probable cause
The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight.
Investigator assessment
Analysis narrative
The flight instructor reported that while turning final, the glider encountered a loss of lift and there was not sufficient altitude to reach the airport. The instructor chose to land in an orchard, and during the landing roll, the glider struck several small trees, which resulted in substantial damage to the left wing and left horizontal stabilizer. The pilot reported that there were no preaccident mechanical malfunctions or failures with the glider that would have precluded normal operation.