Mooney M-20E accident near Cheyenne, Wyoming, September 5, 1990
On September 5, 1990 at about 2:45 am local time, a Mooney M-20E, registered N9067V, was substantially damaged in an accident near Cheyenne, Wyoming (Cheyenne 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).
The NTSB's probable cause their words, unchanged
PILOT'S FAILURE TO EXTEND THE LANDING GEAR PRIOR TO LANDING AFTER HAVING BEEN DISTRACTED BY TRAFFIC. A MITIGATING FACTOR IN THIS ACCIDENT WAS THE FACT THAT THE GEAR WARNING HORN DID NOT FUNCTION.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 5, 1990 · about 2:45 am local time · cases in 1990
- Place
- Cheyenne, Wyoming · Cheyenne · cases near this airport · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Mooney M-20E · all M-20Es on the register
- Registration
- N9067V · registry record · serial 690010
- 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 MOONEY M-20E LANDED GEAR-UP AFTER FAILING TO EXTEND THE LANDING GEAR AFTER BEING DISTRACTED BY OTHER AIR TRAFFIC. INVESTIGATION REVEALED THAT THE GEAR WARNING HORN WAS NOT FUNCTIONING.
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
- Flight time: 486 hours in all; 486 in this make and model; 56 in the last 90 days; 27 in the last 30 days; 353 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 2,246 hours
- Last inspection: annual inspection, February 24, 1990; 103 hours since
- Maximum gross weight: 2,575 lb
- Seats: 4
- Landing gear: retractable
- Engine: Lycoming IO-360-A1A (piston); 0 hours total
The flight
- Flight plan: none
- Runway 12, 6,691 ft by 150 ft
Weather at the time
- Light: night, bright
- Wind: from 140° at 6 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 68°F (20°C), dew point 48°F (9°C)
- Altimeter: 30.00 inHg
- Observation at 2:48 am from CYS
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
- N9067V on the register today · the tail number may have moved to another aircraft since
- Mooney M-20 6,245 registered today · the model family and its accident history
- Mooney 5,394 aircraft on the register
- Engine: Lycoming IO-360-A1A 196 aircraft carry this series today · as the NTSB recorded it
- Cheyenne Rgnl/Jerry Olson Field · nearest airport
- Accidents and incidents in Wyoming 778 since 1982 · 108 in the last ten years
- Wyoming 3,236 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/SEA90LA175.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.