Schleicher Alexander Gmbh & Co ASH 26 E N26EL accident near Tullahoma, Tennessee

Probable cause

The pilot's improper use of wing spoilers during approach resulting in an altitude loss and collision with a tree.

NTSB analysis

According to the pilot, he was on a one mile final approach to runway 36 at 800 feet with the glider engine stowed. He noted that the wind was changing and extended the flaps. The airspeed was between 55 and 60 knots when the airbrakes were extended to start a descent. The altitude was high and the glider began to descend at a rapid rate. The pilot closed the airbrakes to arrest the descent rate but realized he was to low and unable to land on the intended runway. The glider collided with a tree, and a post-accident examination revealed that the left wing was substantially damaged. The pilot reported no pre-impact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for ERA13CA310 for the full record.