Cessna 182T accident near Mosby, Montana, August 18, 2010
On August 18, 2010 at about 4:00 pm local time, a Cessna 182T, registered N1142U, was substantially damaged in an accident during enroute (climb to cruise) near Mosby, Montana. 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 partial loss of engine power for undetermined reasons during an en route climb.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 18, 2010 · about 4:00 pm local time
- Place
- Mosby, Montana · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 182T · all 182Ts on the register
- Registration
- N1142U · registry record · serial 18281604
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The airplane experienced a partial loss of engine power during an en route climb when the engine speed decreased to approximately 600 rpms. The pilot was unable to regain engine power after changing several engine control settings. He elected to perform a forced landing to a rough grass field where the airplane struck a ditch and wire fence. A postaccident examination of the airplane and engine did not identify any anomalies that would have resulted in a partial loss of engine power.
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 (climb to cruise) defining event
- Loss of engine power (partial) during emergency descent
- Collision with terrain or object (not controlled flight into terrain) during landing
The NTSB's findings
- cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
Pilot
- Certificate: private
- Ratings: single-engine land; instrument: airplane
- Flight time: 1,165 hours in all; 1,050 in this make and model; 50 in the last 90 days; 9 in the last 30 days; 945 as pilot in command
- Last flight review: April 19, 2009
- Medical certificate: Class 3 (without waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 974 hours
- Last inspection: annual inspection, July 30, 2010
- Maximum gross weight: 3,100 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming IO-540-AB1A5 (piston); 0 hours total
The flight
- Departed from: MCI Kansas City MO at 2:40 pm
- Destination: DBQ Dubuque IA
- Flight plan: IFR
Weather at the time
- Light: daylight
- Wind: from 020° at 3 knots
- Visibility: 9 statute miles
- Sky: overcast at 1,200 ft; clear
- Temperature: 73°F (23°C), dew point 64°F (18°C)
- Altimeter: 30.04 inHg
- Observation at 2:53 pm from MCI
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.
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.