Rockwell International 112TC accident near Cheyenne, Wyoming, June 14, 2018
On June 14, 2018 at about 8:45 pm local time, a 1976 Rockwell International 112TC, registered N4954W, was substantially damaged in an accident during enroute near Cheyenne, Wyoming (Cheyenne Regional 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
A loss of engine power for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 14, 2018 · about 8:45 pm local time · cases in 2018
- Place
- Cheyenne, Wyoming · Cheyenne Regional Airport · cases near this airport · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Rockwell International 112TC, built 1976 · all 112TCs on the register
- Registration
- N4954W · no longer on the register · serial 13084
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The airline transport pilot and his passenger departed on a short personal flight from an airpark to a local airport. The entire flight was conducted with the fuel selector valve selected to BOTH. During the flight, the engine rpm decreased and then increased several times before decreasing to idle. The pilot attempted to restore engine power but was not successful. The pilot performed a forced landing to a field, during which the airplane sustained substantial damage to the right wing and fuselage. The pilot stated that each fuel tank contained about 1/4 tank of fuel based on the reading on the fuel gauges and his knowledge of the fuel burn and the previous day's flight. He did not have a calibrated fuel stick for the airplane to visually verify the level of fuel. A postaccident examination of the airframe, engine, and fuel system revealed no evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. Thus, the reason for the loss of engine power could not be determined.
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
What happened, in order
- Loss of engine power (partial) during enroute
- Loss of engine power (total) during enroute defining event
- Off-field or emergency landing during emergency descent
The NTSB's findings
- cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
Pilot
- Certificate: airline transport pilot, flight instructor
- Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
- Flight time: 7,260 hours in all; 6.5 in this make and model; 70 in the last 90 days; 26 in the last 30 days; 3,745 as pilot in command; 965 on instruments
- Last flight review: March 29, 2018
- Medical certificate: Class 1 (with waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 2,228.7 hours
- Last inspection: annual inspection, June 7, 2018; 21 hours since
- Maximum gross weight: 2,850 lb
- Seats: 4
- Landing gear: retractable
- Engine: Lycoming TO-360-C1A6D (piston); 2,249 hours total
The flight
- Departed from: WY05 Cheyenne WY at 9:15 pm
- Destination: KCYS Cheyenne WY
- Flight plan: none
- Runway 27, 9,270 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 290° at 19 knots, gusting 25
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 84°F (29°C), dew point 27°F (-3°C)
- Altimeter: 29.93 inHg
- Observation at 8:53 pm from KCYS, 1 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
2 documents, released by the NTSB on July 15, 2019. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 | PDF, 9 pages | View Download |
| 2 | Pilot Statement | PDF, 3 pages | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
Other NTSB records under N4954W the same tail number, which may have belonged to a different aircraft at the time
Connections how this case links to the rest of the register
- N4954W: not on the register today · the record of its deregistration
- Rockwell International 112 207 registered today · the model family and its accident history
- Rockwell International 657 aircraft on the register
- Engine: Lycoming TO-360-C1A6D 4 aircraft carry this series today · as the NTSB recorded it
- Cheyenne Rgnl/Jerry Olson Field · nearest airport
- Skyview Airpark · departed from
- Accidents and incidents in Wyoming 778 since 1982 · 108 in the last ten years
- Wyoming 3,236 aircraft registered
- Other NTSB records under N4954W 1 records · the number may have belonged to another aircraft at the time
The whole map of how records connect · these connections as data: /graph/accident/CEN18LA225.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.