Helio H-295 accident near Koliganek, Alaska, September 2, 2009
On September 2, 2009 at about 9:30 pm local time, a Helio H-295, registered N6468V, was substantially damaged in an accident during enroute (cruise) near Koliganek, Alaska. It was an other work-use flight under general aviation rules (Part 91). No one was hurt; 3 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 during cruise flight due to water in the fuel, and the pilot's inadequate preflight inspection.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 2, 2009 · about 9:30 pm local time · cases in 2009
- Place
- Koliganek, Alaska · map
- Type
- Accident
- Injuries
- No one was hurt; 3 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Helio H-295 · all H-295s on the register
- Registration
- N6468V · registry record · serial 1424
- Damage
- Substantial damage
- Flight
- Other work-use flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The commercial pilot was on a Title 14, CFR Part 91, passenger flight in conjunction with his fish guiding business when the accident occurred. The pilot reported that he was flying about 700 feet above ground level in his float-equipped, single-engine airplane, when he began transferring fuel from the auxiliary fuel tank to the main fuel tank, and the engine lost power. After a failed attempt to restart the engine, he said he was forced to land the airplane on the tundra. The pilot said there were no known mechanical problems with the airplane prior to the accident. He further reported that it had been raining for several days, and he should have sumped the fuel tanks prior to takeoff. He also stated that he should have initiated the fuel transfer at a higher altitude over terrain that was suitable for landing. He said the float attachments and the fuselage were damaged during the accident.
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 contamination during enroute (cruise) defining event
- Collision with terrain or object (not controlled flight into terrain) during emergency descent
The NTSB's findings
- cause Aircraft › Fluids/misc hardware › Fluids › Fuel › Inadequate inspection other cases naming the fuel system
- cause Personnel issues › Task performance › Inspection › Preflight inspection › Pilot
- cause Aircraft › Fluids/misc hardware › Fluids › Fuel › Fluid condition other cases naming the fuel system
Pilot
- Certificate: commercial pilot
- Ratings: multi-engine land; multi-engine sea; single-engine land; single-engine sea; instrument: airplane
- Flight time: 16,318 hours in all; 1,661 in this make and model; 16,243 as pilot in command
- Last flight review: May 12, 2009
- Medical certificate: Class 2 (with waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 7,041 hours
- Last inspection: annual inspection, March 6, 2009; 31 hours since
- Maximum gross weight: 3,800 lb
- Seats: 6
- Landing gear: fixed
- Engine: Lycoming GO-480 SERIES (piston); 0 hours total
The flight
- Departed from: NDN Nondalton AK at 12:00 pm
- Destination: Nushagak AK
- Flight plan: none
Weather at the time
- Light: daylight
- Wind: from 090° at 10 knots, gusting 15
- Visibility: 5 statute miles
- Sky: broken clouds at 1,200 ft
- Temperature: 55°F (13°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 2 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
1 document, released by the NTSB on October 25, 2009. 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, 10 pages | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
Connections how this case links to the rest of the register
- N6468V on the register today · the tail number may have moved to another aircraft since
- Helio H-295 54 registered today · the model family and its accident history
- Helio 120 aircraft on the register
- Engine: Lycoming GO-480 SERIES 246 aircraft carry this series today · as the NTSB recorded it
- Accidents and incidents in Alaska 5,932 since 1982 · 823 in the last ten years
- Alaska 9,143 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/ANC09CA091.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.