Amateur-built S1S accident near Manvel, Texas, September 10, 1983
On September 10, 1983 at about 9:00 pm local time, a amateur-built S1S, registered N2050, was substantially damaged in an accident near Manvel, Texas (Wolfe 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
- September 10, 1983 · about 9:00 pm local time
- Place
- Manvel, Texas · Wolfe · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built S1S
- Registration
- N2050 · registry record · serial 1001
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE ACFT BUFFETTED ABNORMALLY DURING AN AEROBATIC MANEUVER SO THE PLT RELAXED THE 'G' LOADING ON THE AIRFRAME. THE PLT NOTED A CONCAVE DEFORMITY IN THE BOTTOM OF THE LEFT UPPER WING. LEVEL FLT WAS ACHIEVED TO TEST THE FLT CHARACTERISTICS OF THE ACFT. FLT CONTROL SEEMED 'NEARLY NORMAL' SO A NORMAL LANDING WAS MADE. POST LANDING INVESTIGATION REVEALED SIX BROKEN RIBS IN THE LEFT UPPER WING.
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: commercial pilot
- Ratings: single-engine land; instructor: airplane single-engine; instrument: airplane
- Flight time: 7,200 hours in all; 600 in this make and model; 115 in the last 90 days; 7,000 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 732 hours
- Last inspection: annual inspection, June 1, 1983; 70 hours since
- Maximum gross weight: 900 lb
- Seats: 1
- Landing gear: fixed
- Engine: Lycoming IO-360 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 81°F (27°C), dew point 0°F (-18°C)
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.