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).
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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 October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 14, 2018 · about 8:45 pm local time
- Place
- Cheyenne, Wyoming · Cheyenne Regional 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
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.
Other NTSB records under N4954W the same tail number, which may have belonged to a different aircraft at the time
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CEN18LA225.