Casualties unknown

Glider Accident During Landing Due to Control Lever Confusion (N73534)

Hempstead, TX, US

On June 14, 1998, a Let BLANIK L-13 (registration N73534) was involved in an aviation accident near Hempstead, TX. Investigators recorded the probable cause as: The pilot's failure to maintain the proper rate of descent. Factor were the pilot's inadvertent lowering of the flaps instead of extending the spoilers, and his lack of experience in gliders. 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 Blanik L-13 glider crashed during landing after the pilot deployed flaps instead of spoilers, leading to a forced landing in a parking lot and collision with a building and power line.

Accident Sequence

During the landing approach, the pilot reported that when the glider was adjacent to the intended touchdown point, he 'took out some of the spoilers to decrease sink [rate].' After initiating a left turn to base leg, he realized that the 'altitude was still much too great and attempted to deploy full spoilers.' However, ground observers noted that 'no spoilers were deployed; rather, the flaps appeared to have been extended instead.'

On final approach, the pilot lowered the nose to try to touch down on the runway, and the aircraft 'porpoised' due to the 'excessive' speed. Approximately 50 feet from the departure end of the runway and less than 15 feet above ground level, the pilot 'lifted the plane off the ground to avoid hitting the property fence and crossing Highway 290.' He flew the glider over the highway and forced it to the ground in a dirt parking lot. The glider came to a stop after hitting a metal building. It also struck a neutral power line during the landing to the parking lot.

Aircraft Description

The accident aircraft was a Blanik L-13 glider. In this model, the handle for the spoilers is located directly underneath the handle used to deploy the flaps. The pilot stated that 'in concentrating on other factors during landing, it appears that I pulled the wrong lever.'

Pilot Information

The pilot was a private pilot rated student with a total of 7 hours of glider time.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X10310. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.