Schweizer SGS-1-34 accident near Dansville, New York, August 15, 1987
On August 15, 1987 at about 5:00 pm local time, a Schweizer SGS-1-34 (glider), registered N7653, was substantially damaged in an accident near Dansville, New York (Dansville airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 15, 1987 · about 5:00 pm local time
- Place
- Dansville, New York · Dansville · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Schweizer SGS-1-34 · all SGS-1-34s on the register
- Registration
- N7653 · no longer on the register
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PLT STATED THAT AS HE WAS ADJUSTING HIS SEAT BELT WITH THE CANOPY OPEN, THE GLIDER BEGAN BEING PULLED BY THE TOW PILOTS ACFT. HE MANEUVERED THE WING TIP CLEAR OF SOME PARKED ACFT, GRABBED THE CANOPY HATCH, AND HELD IT SHUT DURING THE TKOF. THE COCKPIT CHECK HAD NOT BEEN COMPLETED AND THE DIVE BRAKES WERE UNLOCKED AND INADVERTENTLY LEFT OPEN DURING THE TKOF. WITH THE GLIDER IN THIS CONFIGURATION, IT WOULD NOT CLIMB SO THE TOW PLT CIRCLED THE FLD AND GAVE A MANDATORY WAVE OFF SIGNAL WHILE AT ABT 400 FT. THE GLIDER PLT TURNED 180 DEGREES IN AN EFFORT TO LND DOWNWIND BUT ENTERED A STALL. DURING THE RECOVERY THE LEFT WING COLLIDED WITH THE GROUND. THE GLIDER PLT STATED THAT HE SHOULD HAVE RELEASED IMMEDIATELY BEFORE BECOMING AIRBORNE. HE HAD OVER 51 HOURS LOGGED IN GLIDERS OF WHICH 6 WERE IN THE LAST 90 DAYS.
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: single-engine land; rotorcraft: glider
- Flight time: 78 hours in all; 7 in the last 90 days; 35 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 1,974 hours
- Last inspection: annual inspection, November 2, 1986
- Maximum gross weight: 600 lb
- Seats: 1
- Landing gear: fixed
- Engine: None NONE (type not recorded); 0 hours total
The flight
- Flight plan: none
- Runway 14, 3,635 ft by 100 ft
Weather at the time
- Light: daylight
- Wind: at 10 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 90°F (32°C), dew point 0°F (-18°C)
- Observation at 4:15 pm
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.