CEN26LA018 · Burkhart Grob Flugzeugbau G102 ASTIR CS
Burkhart Grob Flugzeugbau G102 ASTIR CS · Accident: loss of control on ground during landing
Event
- NTSB case
- CEN26LA018
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- Event fatalities
- Unknown
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Burkhart Grob Flugzeugbau G102 ASTIR CS
- Aircraft type
- Grob G102
- Category
- Glider
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N137SS
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- Aircraft age
- About 49 years (built 1976)
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Landing · landing roll
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of control on ground
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
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.
Probable cause
The pilot’s failure to maintain control during landing roll that resulted in an impact with terrain.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN26LA018
- Event ID
- 20251014201840
- Case number
- CEN26LA018
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status, cause areas. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: fd522ec4dc43bb8a8867431edb5d848b52d6ee830b5962cb5d3fbb863c3dfd27; retrieved 2026-09-16T20:27:40.485Z.