Casualties unknown

Glider Accident Following Low Release and Flap Deployment Error (N7529)

Perry, SC, US

On August 17, 1999, a Let BLANIK L-13 (registration N7529) was involved in an aviation accident near Perry, SC. Investigators recorded the probable cause as: an in-flight collision with the ground due to inadequate liftoff airspeed, and the pilot's improper use of flaps, which resulted in too low of an altitude to sustain flight. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

A glider launched by automobile experienced a low release, prompting a forced landing. The pilot inadvertently deployed flaps instead of spoilers, causing excess float and a collision with terrain.

Incident Overview

A glider being launched by an automobile experienced a low release at an estimated altitude of 100 to 150 feet, as reported by the pilot. The pilot stated that a lack of airspeed for adequate climb was generated, resulting in the early release.

Pilot Actions

Unable to gain sufficient altitude to return to the airport, the pilot executed a left turn of 90 degrees and elected to land in a field adjacent to the airport. During the landing approach, the pilot reported, "I inadvertently deployed flaps instead of spoilers resulting in excess float."

Final Maneuvers and Impact

Just before reaching the end of the field, the pilot turned right to avoid trees. Subsequently, the right wing of the glider impacted the ground, followed by the nose and left wing.

Remarks

No further details regarding the aircraft type, registration, operator, location, or injuries were provided in the source.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X19594. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.