Glaser-Dirks D6-100G accident near Vacaville, California, August 28, 1990
On August 28, 1990 at about 9:00 pm local time, a Glaser-Dirks D6-100G (glider), registered N132S, was substantially damaged in an accident near Vacaville, California (Vacaville Glider Port airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
THE UNAUTHORIZED ENTRY ONTO THE RUNWAY BY A VEHICLE OPERATOR.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 28, 1990 · about 9:00 pm local time
- Place
- Vacaville, California · Vacaville Glider Port · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Glaser-Dirks D6-100G
- Registration
- N132S · registry record · serial E186G15
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT OF THE GLIDER NOTICED A TRACTOR DRIVE ACROSS THE RUNWAY AT THE APPROXIMATE AREA OF THE INTENDED TOUCHDOWN POINT. THE PILOT ALTERED HIS COURSE AND TOUCHED DOWN IN ANOTHER SUITABLE AREA. PRIOR TO STOPPING THE WINGTIP OF THE SAILPLANE CONTACTED THE ROTATING PROPELLER OF A TOWPLANE WHICH WAS STOPPED ON THE SIDE OF THE RUNWAY.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: private
- Ratings: rotorcraft: glider
- Flight time: 60 hours in all; 6 in this make and model; 6 in the last 90 days; 6 in the last 30 days; 55 as pilot in command
- Medical certificate: None
- Seat: ctr
The aircraft
- Airframe total time: 810 hours
- Last inspection: annual inspection, July 21, 1990; 65 hours since
- Maximum gross weight: 850 lb
- Seats: 1
- Landing gear: retractable
- Engine: (type not recorded); 0 hours total
The flight
- Flight plan: none
- Runway 23, 2,200 ft by 60 ft
Weather at the time
- Light: daylight
- Visibility: 20 statute miles
- Sky: clear
- Temperature: 84°F (29°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Other NTSB records under N132S the same tail number, which may have belonged to a different aircraft at the time
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number LAX90DVG18.