Cessna T210L accident near Gillette, Wyoming, November 22, 1989
On November 22, 1989 at about 4:00 pm local time, a Cessna T210L, registered N843YT, was substantially damaged in an accident near Gillette, Wyoming. It was an other work-use 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
FORCED LANDING IN UNSUITABLE TERRAIN AS A RESULT OF AN ENGINE CRANKSHAFT FAILURE AT LOW LEVEL CRUISE FLIGHT.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- November 22, 1989 · about 4:00 pm local time · cases in 1989
- Place
- Gillette, Wyoming
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna T210L · all T210Ls on the register
- Registration
- N843YT · registry record · serial 21060416
- Damage
- Substantial damage
- Flight
- Other work-use flight · general aviation rules (Part 91)
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot
- Ratings: multi-engine land; single-engine land; instrument: airplane; rotorcraft: helicopter
- Flight time: 11,300 hours in all; 3,500 in this make and model; 139 in the last 90 days; 35 in the last 30 days; 11,000 as pilot in command
- Medical certificate: Class 1 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 5,216 hours
- Last inspection: continuous airworthiness programme, November 16, 1989; 16 hours since
- Maximum gross weight: 3,800 lb
- Seats: 6
- Landing gear: retractable
- Engine: Continental TSIO-520-R9 (piston); 0 hours total
The flight
- Departed from: CPR Casper WY at 2:30 pm
- Destination: GLL Gillette WY
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 150° at 10 knots, gusting 15
- Visibility: 50 statute miles
- Sky: scat at 25,000 ft
- Temperature: 55°F (13°C), dew point 0°F (-18°C)
- Altimeter: 30.00 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.
Connections how this case links to the rest of the register
- N843YT on the register today · the tail number may have moved to another aircraft since
- Cessna T210 Turbo Centurion 1,280 registered today · the model family and its accident history
- Cessna 72,682 aircraft on the register
- Engine: Continental TSIO-520-R9 4,110 aircraft carry this series today · as the NTSB recorded it
- Casper/Natrona County International · departed from
- Accidents and incidents in Wyoming 778 since 1982 · 108 in the last ten years
- Wyoming 3,234 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/DEN90LA026.json.
The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.
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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.