Cessna TU206G accident near Molina, Colorado, June 8, 1983
On June 8, 1983 at about 8:18 pm local time, a Cessna TU206G, registered N732ZQ, was substantially damaged in an accident near Molina, Colorado. It was a business flight under general aviation rules (Part 91). 1 person had minor injuries. 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
- June 8, 1983 · about 8:18 pm local time
- Place
- Molina, Colorado
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna TU206G · all TU206Gs on the register
- Registration
- N732ZQ · no longer on the register · serial U20604747
- Damage
- Substantial damage
- Flight
- Business flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT HAD LEVELED OFF AT 17500 FT MSL WHEN THE ENGINE MADE A DETONATING SOUND AND LOST POWER. MANIFOLD PRESSURE WENT TO ABOUT 12 INCHES. FUEL PRESSURE WAS NORMAL BUT THE CYLINDER HEAD TEMPERATURE FELL RAPIDLY. AT 9000 FT MSL THE ENGINE SURGED TO ABOUT 16 INCHES OF MANIFOLD PRESSURE. WHEN THE PILOT LEANED THE MIXTURE THE ENGINE VIBRATED SEVERELY SO THE PILOT SECURED THE ENGINE. POST ACCIDENT INVESTIGATION REVEALED THAT THE RUBBER HOSE FROM THE TURBOCHARGER COMPRESSOR DUCT TO THE THROTTLE BODY DUCT HAD SEPARATED.
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: multi-engine land; single-engine land; instrument: airplane
- Flight time: 1,263 hours in all; 72 in this make and model; 9 in the last 90 days; 1,171 as pilot in command
- Medical certificate: Class 1 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 932 hours
- Last inspection: 100-hour inspection, March 15, 1983; 5 hours since
- Maximum gross weight: 3,600 lb
- Seats: 4
- Landing gear: retractable
- Engine: Continental TSIO-520-M (piston); 0 hours total
- Operator: Monarch Aviation
The flight
- Departed from: GJT Grand Junction CO
- Destination: DEN Denver CO
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 350° at 11 knots
- Visibility: 50 statute miles
- Sky: overcast at 25,000 ft; scat at 8,000 ft
- Temperature: 82°F (28°C), dew point 45°F (7°C)
- Altimeter: 29.00 inHg
- Observation at 8:10 pm from GJT, 22 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.
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.