NTSB Identification: LAX07CA104.
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Accident occurred Sunday, March 11, 2007 in Williams, CA
Probable Cause Approval Date: 06/27/2007
Aircraft: Schleicher ASW-27B, registration: N273W
Injuries: 1 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The glider touched down short of the runway and ground looped during landing. The pilot returned to the airport after he couldn't find any lift. He encountered some sink on his base and final legs. He felt that he didn't retract his spoilers soon enough to prevent his landing just short of the paved runway. The glider ground looped, which broke off the tail boom. The pilot made a recommendation regarding prevention of the accident. He noted that this was an uneventful day, which could lull one into not paying full attention to all phases of flight. The runway was more than long enough to allow him to land 1/4 of the way down the runway, which would have provided a much larger safety margin for his landing.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot's misjudged distance/altitude and delay in retracting the spoilers that led to an undershoot, which resulted in a collision with terrain.

Full narrative available

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