NTSB Identification: MIA08CA136.
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Accident occurred Monday, July 07, 2008 in Elmira, NY
Probable Cause Approval Date: 09/26/2008
Aircraft: Schleicher ASK-21, registration: N363KS
Injuries: 2 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 pilot stated that after his Schleicher ASK-21 glider was towed aloft to 2,000 feet and released, he flew too far from the airport traffic pattern. He said that during the return to the airport, he encountered a "sink and waterfall" effect, which caused a low approach, resulting in his inability to make it to the airport. Subsequently, there was a collision with terrain 100 feet short of the runway. The pilot added that there were no deficiencies with the performance and handling of the glider.

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

The glider pilot's misjudged distance/altitude while soaring.

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