Cessna 340A accident near Frankfort, Illinois, February 16, 1986
On February 16, 1986 at about 9:30 pm local time, a Cessna 340A, registered N8663K, was substantially damaged in an accident near Frankfort, Illinois (Frankfort airport). It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries; 4 others were unhurt. 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
- February 16, 1986 · about 9:30 pm local time
- Place
- Frankfort, Illinois · Frankfort · map
- Type
- Accident
- Injuries
- 1 person had minor injuries; 4 others were unhurt.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 340A · all 340As on the register
- Registration
- N8663K · no longer on the register · serial 0609
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
FOLLOWING A DESCENT THROUGH ICING CONDITIONS THE PLT WAS TOLD BY THE UNICOM OPERATOR THAT THE ACTIVE RWY WAS 'SLIPPERY'.THE PLT LANDED APRX 600-700 FT DOWN THE 3176 FT RWY AND FOUND THAT THE BRAKING ACTION DETERIORATED FROM POOR TO NIL DURING ROLLOUT. HE ATTEMPTED TO SLOW DOWN BY RUNNING ONE MAIN GEAR TIRE INTO SNOW ALONG THE EDGE OF THE RWY, BUT RAN OFF THE END OF THE PAVED SURFACE. THE ACFT STOPPED APRX 100 FT INTO A FLD.
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: airline transport pilot, flight instructor
- Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instrument: airplane
- Flight time: 3,858 hours in all; 356 in this make and model; 188 in the last 90 days; 3,593 as pilot in command
- Medical certificate: Class 1 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 2,020 hours
- Last inspection: 100-hour inspection, February 1, 1985; 2 hours since
- Maximum gross weight: 2,800 lb
- Seats: 6
- Landing gear: retractable
- Engine: Continental TSIO-520-NB (piston); 0 hours total
The flight
- Departed from: LEX Lexington KY at 7:35 pm
- Flight plan: IFR
- Runway 27, 3,176 ft by 50 ft
Weather at the time
- Light: daylight
- Wind: from 090° at 5 knots
- Visibility: 2 statute miles
- Sky: overcast at 1,500 ft; not recorded at 1,500 ft
- Temperature: 28°F (-2°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 | 3 |
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.