- Date
- October 11, 2025, 16:17 local (21:17 UTC)
- Place
- Wallis, TX
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N137SSBurkhart Grob Flugzeugbau G102 Astir CS
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 12, 2026
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Central Region
- Parties
- Federal Aviation Administration, Houston FSDO
- Case key
- 201840
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot’s failure to maintain control during landing roll that resulted in an impact with terrain.
Findings · 1
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
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.
Aircraft
- Registration
- N137SS
- Reported as
- Burkhart Grob Flugzeugbau G102 Astir CS
- Category
- Glider
- Serial number
- 1348
- Built
- 1976
- Airframe hours
- 2,606.1
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Pilot
- Registered owner
- Greater Houston Soaring Association
- Airworthiness certificate
- None
- Last inspection
- Annual · January 15, 2025
- Destination
- Same as departure
- Airport
- TE71 · GHSA-Wallis Glideport, runway 36, 4,000 × 125 ft, grass/turf
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 24
- Injuries
- None
- Certificate
- Private
- Last flight review
- October 22, 2023
- Seat
- Single
- Restraint
- 4-point
- Flight hours
- 100 total · 32 in this make and model · 72 as pilot in command · 30 in the last 90 days · 18 in the last 30 days · 0 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 130° at 4 knots
- Visibility
- 10 statute miles
- Temperature
- 88 °F, dew point 52 °F
- Altimeter
- 29.91 inHg
- Observed at
- TME, 13 nm away
Docket · 2
The files NTSB released with the investigation on February 12, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.2 MB in all.