Cessna TU206G accident near Moore, Idaho, September 4, 1989
On September 4, 1989 at about 9:00 pm local time, a Cessna TU206G, registered N666HS, was substantially damaged in an accident near Moore, Idaho (Arco Butte 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).
The NTSB's probable cause their words, unchanged
FUEL EXHAUSTION DUE TO THE PILOT'S INACCURATE FUEL CONSUMPTION CALCULATIONS. CONTRIBUTING TO THE ACCIDENT WAS A FENCE.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 4, 1989 · about 9:00 pm local time
- Place
- Moore, Idaho · Arco Butte · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna TU206G · all TU206Gs on the register
- Registration
- N666HS · no longer on the register · serial U20606784
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
AS THE AMPHIBIOUS AIRCRAFT WAS ON AN APPROACH TO LAND, ITS ENGINE LOST POWER. THE PILOT COULD NOT REACH THE AIRPORT AND THE AIRCRAFT HIT A FENCE DURING A FORCED LANDING. THE PILOT HAD CALCULATED HE HAD 52 MINUTES OF FUEL REMAINING, BUT THE FAA REPORTED THERE WAS NO FUEL LEFT IN THE AIRCRAFT.
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
Pilot
- Certificate: private
- Ratings: single-engine land; single-engine sea; instrument: airplane
- Flight time: 3,045 hours in all; 2,400 in this make and model; 46 in the last 90 days; 26 in the last 30 days; 2,925 as pilot in command
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: unk
The aircraft
- Last inspection: inspection type not recorded; 0 hours since
- Maximum gross weight: 3,600 lb
- Seats: 6
- Landing gear: fixed
- Engine: Continental TSIO-520M (piston); 0 hours total
The flight
- Departed from: Garden Valley ID at 9:25 pm
- Destination: Arco Butte ID
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 60 statute miles
- Sky: clear
- Temperature: 84°F (29°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| 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.