Burkhart Grob Flugzeugbau G102 ASTIR CS N137SS

Summary

On 11 October 2025 at about 21:17 local time, a Burkhart Grob Flugzeugbau G102 ASTIR CS registered N137SS was involved in an accident near Wallis, Texas, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

11 October 2025 at 21:17

Classification

Accident

Location

Wallis, Texas, United States

Nearest airport

GHSA-Wallis Glideport (TE71)

Coordinates

29.6306, -96.0628

Aircraft

Burkhart Grob Flugzeugbau G102 ASTIR CS

Registration

N137SS

Category

Glider

Year built

1976

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CEN26LA018

Nobody was injured.

The pilot’s failure to maintain control during landing roll that resulted in an impact with terrain.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The pilot stated that he intended to land long on the runway and stop at the north end of airport, between a plowed field and a hangar. He stated that there was a right crosswind, which was within the maximum crosswind capability of the glider. During landing and about 10 feet or less above the runway, the pilot closed the air brakes and allowed ground effect to enable the glider to reach the planned touchdown point. During landing rollout, he made use of minimal speed brakes to keep the glider rolling. As the glider approached the plowed field, he applied left rudder and inadvertently lowered the left wing. Within a few seconds, the glider made a sharp left turn, which the pilot could not remediate with corrective control input. The glider sustained substantial damage to the left and right wings. There were no mechanical anomalies with the glider that would have precluded normal operation. The pilot stated that the accident could have been prevented by keeping the wings level during landing rollout and by not extending the ground roll into area of the plowed field and hangar.

Quoted verbatim from the NTSB record.