Cessna 207A accident near Dillingham, Alaska, November 16, 1999
On November 16, 1999 at about 2:20 pm local time, a Cessna 207A, registered N9933M, was substantially damaged in an accident near Dillingham, Alaska (Dillingham airport). It was a flight of an unrecorded kind under charter and air-taxi rules (Part 135). 1 person had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
Failure of the pilot to remove frost from the wings prior to flight, and the resulting inadvertent stall/mush.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- November 16, 1999 · about 2:20 pm local time
- Place
- Dillingham, Alaska · Dillingham · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 207A · all 207As on the register
- Registration
- N9933M · registry record · serial 20700750
- Damage
- Substantial damage
- Flight
- Flight of an unrecorded kind · charter and air-taxi rules (Part 135)
The NTSB's narrative final · quoted from the NTSB record
After takeoff the airplane did not climb above 30 feet, drifted left of the runway, and settled onto the ground. The pilot stated the engine 'missed, quivered, and lost power.' He also stated there was light frost on the airplane, but that other small airplanes had departed with similar frost. The engine had been installed on the airplane the day prior to the accident, and had been operated on the ground, but not flown. After the accident, an undamaged propeller was installed, and the engine was operated at 1,000 rpm for 4 minutes. The engine-driven fuel pump, fuel controller, and fuel distributor and nozzles were tested. These components all produced the normal fuel flows and pressures specified by the manufacturer.
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: commercial pilot
- Ratings: single-engine land; instrument: airplane
- Flight time: 2,445 hours in all; 1,296 in this make and model; 265 in the last 90 days; 68 in the last 30 days; 2,298 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 12,075 hours
- Last inspection: annual inspection, November 15, 1999; 1 hours since
- Maximum gross weight: 3,800 lb
- Seats: 8
- Landing gear: fixed
- Engine: Continental IO-520F (piston); 0 hours total
- Operator: Yute Air Alaska, INC.
The flight
- Departed from: DLG AK at 2:20 pm
- Destination: KNW New Stuyahok AK
- Runway 1, 6,404 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 040° at 5 knots
- Visibility: 20 statute miles
- Sky: overcast at 1,000 ft; not recorded
- Temperature: 7°F (-14°C), dew point 3°F (-16°C)
- Altimeter: 29.00 inHg
- Observation at 1:50 pm from DLG
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| 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.