Pitts S-1T accident near Haskell, Oklahoma, September 18, 1983
On September 18, 1983 at about 7:30 pm local time, a Pitts S-1T, registered N49311, was destroyed in an accident near Haskell, Oklahoma (Haskell airport). It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries. 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 18, 1983 · about 7:30 pm local time
- Place
- Haskell, Oklahoma · Haskell · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Pitts S-1T · all S-1Ts on the register
- Registration
- N49311 · no longer on the register · serial 007
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
WHILE PERFORMING A SNAPROLL AT AN AIRSHOW, THE CRANKSHAFT FAILED & THE PROP SEPARATED FROM THE ACFT. THE PLT LANDED ON THE ARPT, BUT THE ACFT WENT THRU AN OPEN HANGER BEFORE THE PLT COULD STOP. THE WINGS STRUCK SUPPORTING POLES UNDER THE ROOF OF THE HANGER. AN EXAM REVEALED THAT THE CRANSHAFT HAD FAILED FROM FATIGUE.
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
- Flight time: 2,205 hours in all; 290 in this make and model
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 237 hours
- Last inspection: annual inspection, September 16, 1982
- Maximum gross weight: 1,100 lb
- Seats: 1
- Landing gear: fixed
- Engine: Lycoming AEIO-360-A1C (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 180° at 15 knots
- Visibility: 15 statute miles
- Sky: clear
- Temperature: 90°F (32°C), dew point 0°F (-18°C)
- Altimeter: 29.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 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.