Cessna P206C accident near Tremonton, Utah, December 5, 1983
On December 5, 1983 at about 3:45 pm local time, a Cessna P206C, registered N8669Z, was substantially damaged in an accident near Tremonton, Utah (Tremonton Municipal airport). It was a flight of an unrecorded kind under charter and air-taxi rules (Part 135). 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 NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- December 5, 1983 · about 3:45 pm local time
- Place
- Tremonton, Utah · Tremonton Municipal · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna P206C · all P206Cs on the register
- Registration
- N8669Z · no longer on the register · serial P206-0469
- 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
BEFORE TAKEOFF, THE PLT OBTAINED A WX BRIEFING & FILED A FLT PLAN, BUT DID NOT ASK FOR NOTAMS. HE WAS UNAWARE THAT THE DESTINATION ARPT WAS NOTAMED AS CLOSED UNTIL AFTER THE FLT. HE SAID THAT DURING ARRIVAL, HE 'DISCOVERED AN UNPLOWED BUT APPARENTLY USED RWY.' HE OBSERVED SEVERAL TRACKS ON THE SNOW COVERED RWY & ASSUMED IT WAS OPEN. THERE WAS NO TOWER OR UNICOM AT THE ARPT. AN APCH FOR A SOFT FIELD LANDING WAS MADE WITH FULL FLAPS & THE ACFT TOUCHED DOWN ON 8 INCHES OF CRUSTED SNOW. ALMOST IMMEDIATELY, THE NOSEWHEEL BECAME BURIED IN THE SNOW, DESPITE THE USE OF FULL UP ELEVATOR. WHEN THE ACFT HAD SLOWED TO ABOUT 10 KNOTS, IT WENT OVER ONTO ITS TOP.
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: flight instructor, commercial pilot
- Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instrument: airplane
- Flight time: 1,715 hours in all; 54 in this make and model; 215 in the last 90 days; 1,504 as pilot in command
- Medical certificate: Class 1 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 3,600 lb
- Seats: 4
- Landing gear: fixed
- Engine: Continental IO-520-A (piston); 0 hours total
- Operator: Mercury Air Courier Service
The flight
- Departed from: BMC Brigham City UT at 3:15 pm
- Flight plan: VFR
- Runway 35, 3,445 ft by 75 ft
Weather at the time
- Light: daylight
- Wind: from 170° at 7 knots
- Visibility: 40 statute miles
- Sky: scat at 4,000 ft
- Temperature: 16°F (-9°C), dew point 0°F (-18°C)
- Altimeter: 30.00 inHg
- Observation at 2:47 pm from OGD, 32 miles away
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.
Other NTSB records under N8669Z the same tail number, which may have belonged to a different aircraft at the time
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.