Amateur-built MURPHY REBEL accident near Fort Collins, Colorado, October 12, 2017
On October 12, 2017 at about 4:40 pm local time, a 2015 amateur-built MURPHY REBEL, registered N734R, was substantially damaged in an accident during enroute near Fort Collins, Colorado. 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
A total loss of engine power due to carburetor ice accumulation. Contributing to the accident was the pilot’s failure to apply carburetor heat.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- October 12, 2017 · about 4:40 pm local time
- Place
- Fort Collins, Colorado · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built MURPHY REBEL, built 2015
- Registration
- N734R · registry record · serial 734R
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The private pilot reported that, while in cruise flight, the engine started to sputter then experienced a total loss of power. The pilot attempted to restore power without success and conducted a forced landing to a field, where the airplane nosed over. The pilot stated that he did not use carburetor heat following the loss of engine power. A postaccident examination of the airframe and engine revealed no evidence of mechanical malfunction or failures that would have precluded normal operation. A review of the recorded weather information in the area indicated that the atmospheric conditions at the time of the accident were conducive to the accumulation of serious carburetor icing at any power setting. The total loss of engine power was likely due to an accumulation of carburetor ice. Had the pilot immediately applied carburetor heat, it is possible that it would have cleared the ice and restored 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
- Fuel related during enroute defining event
- Off-field or emergency landing during landing
- Nose over/nose down during landing (landing roll)
The NTSB's findings
- cause Environmental issues › Conditions/weather/phenomena › Temp/humidity/pressure › Conducive to carburetor icing › Effect on equipment
- cause Aircraft › Aircraft systems › Ice/rain protection system › Intake anti › ice, deice › Not used/operated
- cause Personnel issues › Task performance › Use of equip/info › Use of equip/system › Pilot
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 341.1 hours in all; 18.1 in this make and model; 226.1 as pilot in command
- Last flight review: June 30, 2017
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: left
- Injury: minor injuries
The aircraft
- Airframe total time: 18.1 hours
- Last inspection: condition inspection, April 20, 2017
- Maximum gross weight: 1,700 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-320-E2D (piston); 27 hours total
The flight
- Departed from: KLMO Longmont CO at 4:00 pm
- Destination: KLMO Longmont CO
- Flight plan: none
Weather at the time
- Light: daylight
- Wind: from 120° at 7 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 52°F (11°C), dew point 39°F (4°C)
- Altimeter: 30.15 inHg
- Observation at 4:56 pm from KFNL
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
4 documents, released by the NTSB on April 24, 2018. 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, 13 pages | View Download |
| 2 | Pilot Statement to FAA | PDF, 1 page | View Download |
| 3 | Witness Statements | PDF, 4 pages | View Download |
| 4 | Weather Data | PDF, 5 pages | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
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.