Amateur-built BLADE 582 accident near Two Rivers, Alaska, June 20, 2012
On June 20, 2012 at about 9:30 am local time, a amateur-built BLADE 582 (weight-shift aircraft), registered N907AD, was substantially damaged in an accident during enroute (cruise) near Two Rivers, Alaska. 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
The total loss of engine power during cruise flight due to fouled spark plugs, which resulted from a stuck mixture control.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 20, 2012 · about 9:30 am local time
- Place
- Two Rivers, Alaska · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built BLADE 582
- Registration
- N907AD · no longer on the register · serial 1151-0398-7W954
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot reported that the airplane was in level cruise flight when the engine began to run rough and lose power, followed by a complete loss of engine power. He made a forced landing on a mountain ridge. During the forced landing, the nose wheel encountered rough terrain and collapsed rearward, which resulted in substantial damage to the fuselage. Postaccident examination revealed that the engine’s mixture control malfunctioned, which resulted in fouled spark plugs.
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 (total) during enroute (cruise) defining event
- Off-field or emergency landing during landing
The NTSB's findings
- cause Aircraft › Aircraft power plant › Engine fuel and control › Fuel control/carburetor › Malfunction
- Environmental issues › Physical environment › Terrain › Rough terrain › Effect on equipment
Pilot
- Certificate: sport pilot
- Flight time: 73 hours in all; 73 in this make and model
- Medical certificate: Sport Pilot
- Seat: frt
- Injury: no injuries
The aircraft
- Seats: 2
- Landing gear: fixed
- Engine: Rotax 582DCDI (piston); 0 hours total
The flight
- Departed from: 95Z North Pole AK
- Destination: 95Z North Pole AK
- Flight plan: not recorded
Weather at the time
- Light: dusk
- Visibility: 10 statute miles
- Sky: broken clouds; a few clouds
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight 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.
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.