A delayed and/or insufficient flare in combination with a forward airspeed during an autorotation led to an accident.
During a winch launch, the glider bounced and rolled 60° to the left before colliding with the runway.
Full deployment of the airbrakes at low altitude, during a winch start, caused the glider to hit the ground in a steep angle.
A required take-off distance longer that the available take-off distance led to the aircraft collision with nearby trees and the accident.