Accident Summary
A glider overran the end of the runway while landing and impacted a dirt mound. The accident occurred during the pilot's first solo flight as he was obtaining flight instruction for the addition of a glider rating.
Pilot's Account
The pilot reported that the flight was uneventful until he turned onto final approach. He stated that he was high on final and had to slip to lose altitude. During the slip, the glider "picked up some airspeed," according to the pilot. The glider landed "long, fast, and as a result hit the mound at the edge of the airport perimeter dirt road."
Witness Observations and Pilot Speculation
The pilot reported that several witnesses recalled not seeing the spoilers deployed during the final approach and landing. The pilot surmised that he had mistakenly repositioned his hand on the flap lever and as a result had been raising and lowering the flaps instead of the spoilers.