# NTSB investigations: Burkhart Grob Flugzeugbau G103 TWIN ASTIR

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN26LA233](https://openairdocs.org/ntsb/CEN26LA233.md): Burkhart Grob Flugzeugbau G103 Twin Astir · Gregory, MI · Accident · No injuries · Class 4 · Limited · Final report · Jun 3, 2026 · N4101M · Substantial damage
  > The flight instructor’s improper planning during the simulated aborted launch which resulted in a touchdown on unsuitable terrain.
- [NTSB WPR24LA274](https://openairdocs.org/ntsb/WPR24LA274.md): Burkhart Grob Flugzeugbau G103 Twin Astir · Minden, NV · Accident · No injuries · Class 4 · Limited · Final report · Aug 9, 2024 · N125CC · Substantial damage
  > The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight and a subsequent collision with an obstacle during an off-field landing.
- [NTSB ANC24LA071](https://openairdocs.org/ntsb/ANC24LA071.md): Burkhart Grob Flugzeugbau G103 Twin Astir · Huntsville, UT · Accident · No injuries · Class 4 · Limited · Final report · Jul 29, 2024 · N8485W · Substantial damage
  > The pilot's failure to navigate in hazy conditions, which resulted in a forced landing in a field and a collision with a pole.
- [NTSB ERA24LA098](https://openairdocs.org/ntsb/ERA24LA098.md): Burkhart Grob Flugzeugbau G103 Twin Astir · Zephyrhills, FL · Accident · Serious injuries · Class 4 · Limited · Final report · Jan 25, 2024 · N1202Z · Substantial damage
  > The glider pilot’s failure to release from the towline after the tow plane experienced a loss of engine power.
- [NTSB GAA16CA205](https://openairdocs.org/ntsb/GAA16CA205.md): Burkhart Grob Flugzeugbau G103 Twin Astir · Marana, AZ · Accident · Minor injuries · Data collection · Final report · Apr 24, 2016 · N40880 · Substantial damage
  > The glider's loss of lift as a result of unfavorable wind conditions for glider operations, consequently resulting in a collision with trees.
- [NTSB NYC07CA118](https://openairdocs.org/ntsb/NYC07CA118.md): Burkhart Grob Flugzeugbau G103 · Franconia, NH · Accident · Minor injuries · Data collection · Final report · May 13, 2007 · N39783 · Substantial damage
  > The pilot's failure to obtain the proper touchdown point. A factor in the accident was an encounter with an updraft while on approach.
- [NTSB DEN07LA074](https://openairdocs.org/ntsb/DEN07LA074.md): North American SNJ-5 · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · Mar 13, 2007 · N12KY · 2 aircraft · Minor damage
  > The pilot of the North American SNJ-5 warbird's inadequate visual lookout while taxiing, resulting in an on-ground collision with the stationary Grob motor glider.
- [NTSB LAX07CA036](https://openairdocs.org/ntsb/LAX07CA036.md): Burkhart Grob Flugzeugbau G103 Twin Astir · Tucson, AZ · Accident · No injuries · Data collection · Final report · Nov 15, 2006 · N4115M · Substantial damage
  > The pilot's improper use of the spoilers during the landing flare, which resulted in a hard landing, and his inadequate bounced landing recovery technique.
- [NTSB CHI07LA005](https://openairdocs.org/ntsb/CHI07LA005.md): Burkhart Grob G103 · Lake Village, IN · Accident · No injuries · Limited investigation · Final report · Oct 8, 2006 · N4425Y · 2 aircraft · Substantial damage
  > Inadequate visual lookout by the pilot. A factor associated with the accident was that neither airplane was equipped with communications equipment.
- [NTSB LAX06CA189](https://openairdocs.org/ntsb/LAX06CA189.md): Burkhart Grob Flugzeugbau G103 Twin Astir · Llano, CA · Accident · No injuries · Data collection · Final report · Jun 3, 2006 · N4464P · Substantial damage
  > the student pilot's failure to recover from a porpoise/pilot induced oscillation, which resulted in a hard landing.
- [NTSB ATL06CA006](https://openairdocs.org/ntsb/ATL06CA006.md): 1200 G103 · Benton, TN · Accident · Serious injuries · Data collection · Final report · Oct 14, 2005 · N381SL · Substantial damage
  > The pilot's misjudgment of distance and failure to maintain a visual look out during a forced landing resulting in an in flight collision with a guy wire and the ground.
- [NTSB SEA05LA164](https://openairdocs.org/ntsb/SEA05LA164.md): Burkhart Grob G103 Twin Astir · Driggs, ID · Accident · 1 fatal · Limited investigation · Final report · Aug 4, 2005 · N153SS · Substantial damage
  > The pilot's failure to maintain aircraft control while maneuvering in the traffic pattern for landing. The pilot's failure to maintain a proper altitude was a factor.
- [NTSB DEN05LA108](https://openairdocs.org/ntsb/DEN05LA108.md): Grob G103 · Moriarty, NM · Accident · No injuries · Limited investigation · Final report · Jul 9, 2005 · N916G · Substantial damage
  > the glider pilot's intentional tow release at too low an altitude when he erroneously perceived the tow plane was about to crash. A contributing factor was the unsuitable terrain on which to make a landing.
- [NTSB DEN03LA128](https://openairdocs.org/ntsb/DEN03LA128.md): Grob G103 Twin Astir · Morgan, UT · Accident · 1 fatal · Limited investigation · Final report · Jul 14, 2003 · N27TA · Destroyed
  > the pilot's failure to maintain adequate airspeed which resulted in a stall/mush. Also causal was the pilot's inadequate in-flight planning/decision to fly low over a mountain ridge. Contributing factors included the wind shear, altitude/clearance, and the…
- [NTSB IAD02LA071](https://openairdocs.org/ntsb/IAD02LA071.md): Burkhart Grob G103 Twin Astir · Unionville, PA · Accident · No injuries · Limited investigation · Final report · Jul 5, 2002 · N4446W · Substantial damage
  > The pilot's evasive maneuver to avoid a collision with a departing airplane, which resulted in a landing short of the runway. A factor was the pilot's decision to land on the runway opposite the one in use.
- [NTSB IAD02LA048](https://openairdocs.org/ntsb/IAD02LA048.md): Burkhart Grob G103 · Fairfield, PA · Accident · No injuries · Limited investigation · Final report · May 5, 2002 · N5364G · Substantial damage
  > The pilot's failure to attain proper runway alignment. A factor in the accident was the pilot's delay in retracting the spoilers.
- [NTSB DEN99LA028](https://openairdocs.org/ntsb/DEN99LA028.md): Burkhart Grob G103 Twin Astir · Canon City, CO · Accident · Serious injuries · Limited investigation · Final report · Dec 27, 1998 · N173SS · Substantial damage
  > The glider pilot's failure to follow proper preflight procedures, and his failure to control the aircraft when the latch opened during flight. A factor was his failure to properly latch the canopy, and to utilize all available runway during the forced landing.
- [NTSB FTW98LA244](https://openairdocs.org/ntsb/FTW98LA244.md): Burkhart Grob 103 · Briggs, TX · Accident · No injuries · Limited investigation · Final report · May 23, 1998 · N427BG · Substantial damage
  > The pilot's misjudgment of the distance and altitude. Factors were the lack of thermal lift and his diverted attention while on downwind.
- [NTSB FTW98LA014](https://openairdocs.org/ntsb/FTW98LA014.md): Burkhart Grob 103 · Caddo Mills, TX · Accident · No injuries · Limited investigation · Final report · Oct 3, 1997 · N921G · Substantial damage
  > the pilot's improper flare and improper recovery from a bounced landing. A factor relating to the accident was: the gusty wind condition.
- [NTSB LAX95LA106](https://openairdocs.org/ntsb/LAX95LA106.md): Burkhart Grob Twin Astir · Fort Huachuca, AZ · Accident · No injuries · Limited investigation · Final report · Feb 11, 1995 · N333BH · Substantial damage
  > Improper in-flight planning/decision by the pilot, which resulted in his failure to remain clear of tree(s) during an off-airport landing. Factors related to the accident were: lack of thermal lift, and high obstructions in the off-airport landing area.
- [NTSB LAX94LA293](https://openairdocs.org/ntsb/LAX94LA293.md): Burkhart Grob G103 · Tehachapi, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 19, 1994 · N38366 · Substantial damage
  > the pilot's failure to secure the canopy before takeoff, and his failure to maintain directional control during landing rollout.
- [NTSB FTW94LA170](https://openairdocs.org/ntsb/FTW94LA170.md): Burkhart Grob 6103 Twin Astir · Forrest City, AR · Accident · Serious injuries · Limited investigation · Final report · May 22, 1994 · N156SS · Substantial damage
  > The pilot's loss of aircraft control when he diverted his attention to closing the canopy. A factor was his failure to properly close the canopy prior to takeoff.
- [NTSB FTW94LA020](https://openairdocs.org/ntsb/FTW94LA020.md): Burkhart Grob G103 · San Antonio, TX · Accident · No injuries · Limited investigation · Final report · Oct 25, 1993 · N94BG · Substantial damage
  > The pilot's failure to maintain a visual lookout. Factors were: inadequate altitude and distracted attention.
- [NTSB CHI93LA353](https://openairdocs.org/ntsb/CHI93LA353.md): Burkhart Grob G-103 Twin Astir · New Douglas, IL · Accident · No injuries · Limited investigation · Final report · Sep 4, 1993 · N153SS · Substantial damage
  > Failure of the glider tow attachment. Factors related to the accident were the improper emergency procedure by the student, and the flight instructor's delayed remedial action..
- [NTSB CHI93LA334](https://openairdocs.org/ntsb/CHI93LA334.md): Burkhart Grob G103 · Hinckley, IL · Accident · Minor injuries · Limited investigation · Final report · Aug 22, 1993 · N422BG · Substantial damage
  > the failure of the cockpit canopy.
- [NTSB CHI93LA230](https://openairdocs.org/ntsb/CHI93LA230.md): Burkhart Grob G103 · Ionia, MI · Accident · No injuries · Limited investigation · Final report · Jun 26, 1993 · N4101M · Substantial damage
  > The pilot in command's failure to maintain the proper glidepath.
- [NTSB LAX92LA352](https://openairdocs.org/ntsb/LAX92LA352.md): Burkhart Grob G103 Flugzeugbau · Truckee, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 17, 1992 · N3872H · Substantial damage
  > The pilot's poorly planned approach. Lack of supervision in the type of aircraft was a factor.
- [NTSB MIA92LA153](https://openairdocs.org/ntsb/MIA92LA153.md): Burkhart Grob G103 · Knoxville, TN · Accident · Serious injuries · Limited investigation · Final report · Jul 25, 1992 · N2135R · Substantial damage
  > The pilot-in-command's failure to properly instruct the passenger on aircraft controls prior to takeoff, resulting in the passenger inadvertently releasing the tow cable as the glider was being towed through 150 feet.
- [NTSB LAX92LA275](https://openairdocs.org/ntsb/LAX92LA275.md): Burkhart Grob G103 · Olancha, CA · Accident · No injuries · Limited investigation · Final report · Jul 3, 1992 · N173SS · Substantial damage
  > 1) The tow pilot's intentional premature release of the glider, which had become airborne, when the tow plane failed to achieve sufficient airspeed during its takeoff ground roll, and, 2) the glider having insufficient altitude at the time of release to…
- [NTSB FTW92LA079](https://openairdocs.org/ntsb/FTW92LA079.md): Burkhart Grob G103 · Boerne, TX · Accident · No injuries · Limited investigation · Final report · Mar 1, 1992 · N94BG · Substantial damage
  > The pilot in command inadvertently stalling the aircraft. Factors were the pilot not maintaining proper altitude during the approach and his abrupt aircraft handling.
- [NTSB LAX91LA408](https://openairdocs.org/ntsb/LAX91LA408.md): Burkhart Grob G103 · Fremont, CA · Accident · No injuries · Limited investigation · Final report · Sep 26, 1991 · N4113G · Substantial damage
  > The pilot failed to adequately compensate for the prevailing wind conditions.
- [NTSB LAX90LA282](https://openairdocs.org/ntsb/LAX90LA282.md): Burkhart Grob G-103 · Liano, CA · Accident · No injuries · Limited investigation · Final report · Aug 10, 1990 · N4426B · Substantial damage
  > The pilot's inflight decision was improper. Contributing to this accident was the pilot's self-induced pressure.
- [NTSB NYC90LA124](https://openairdocs.org/ntsb/NYC90LA124.md): Burkhart Grob G103 · Barre, MA · Accident · Minor injuries · Limited investigation · Final report · Jun 2, 1990 · N3836H · Substantial damage
  > The premature commanded tow release by the towplane pilot over unsuitable terrain.
- [NTSB LAX90LA130](https://openairdocs.org/ntsb/LAX90LA130.md): Burkhart Grob 103 · Byron, CA · Accident · No injuries · Limited investigation · Final report · Mar 31, 1990 · N3837J · Substantial damage
  > The pilot's inadequate visual lookout for objects along the landing runway.
- [NTSB ATL87IA067](https://openairdocs.org/ntsb/ATL87IA067.md): Burkhart Grob G103 Twin Astir · Williamson, GA · Incident · No injuries · Incident investigation · Final report · Jan 31, 1987 · N429BG · Minor damage
  > As the glider plt was apchg the entry point for landing, he checked the spoilers for operation. The spoilers extended, but would not retract. There was a significant increase in the sink rate & the plt realized he would be unable to reach the arpt.…
- [NTSB ATL86LA164](https://openairdocs.org/ntsb/ATL86LA164.md): Burkhart Grob G103 · Benton, TN · Accident · Minor injuries · Limited investigation · Final report · Jun 8, 1986 · N2135R · Substantial damage
  > The glider landed short of the rwy. The plt had observed another acft on the rwy apch end and extended his base leg. During the turn to final, he deployed the spoilers. He reported that the acft experienced a high sink rate after the turn, and that he…
- [NTSB ATL85LA154](https://openairdocs.org/ntsb/ATL85LA154.md): Burkhart Grob G103 · Williamson, GA · Accident · No injuries · Limited investigation · Final report · May 7, 1985 · N916G · Substantial damage
  > The student plt stated his final apch to the rwy was made off-center to account for a x-wind. The glider touched down to the left of the paved strip & began converging on a fence. The plt retracted the speed brakes & lifted off as the glider approached the…
- [NTSB LAX85LA209](https://openairdocs.org/ntsb/LAX85LA209.md): Burkhart Grob G103 Twin Astir · Hemet, CA · Accident · No injuries · Limited investigation · Final report · Apr 17, 1985 · N20HS · Substantial damage
  > The plt attempted to land the glider near the rwy threshold in order to be ready for an immediate relaunch. He reported that he was aware of vegetation, located along the edge of the rwy, but said that he misjudged its height. The right wing contacted the…
- [NTSB NYC83LA229](https://openairdocs.org/ntsb/NYC83LA229.md): Burkhart Grob Flugzeugbau G103 · Julian, PA · Accident · No injuries · Limited investigation · Final report · Aug 29, 1983 · N906BG · Substantial damage
  > The student plt & instructor (CFI) were practicing pattern work & landings. During the 1st 3 patterns, the wind was calm, however, by the time they were on their 4th pattern, the wind increased & became gusty. While the student was flying the pattern, he…

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1660202'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1660202

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