# NTSB CHI86LA088: Cessna 340A, N8663K, Frankfort, IL, February 16, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: February 16, 1986, 15:30 local (21:30 UTC)
- Place: Frankfort, IL
- Coordinates: 41.490566, -87.830299 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.4906&lon=-87.8303&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13425
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86LA088
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13425/pdf
- Page: https://openairdocs.org/ntsb/CHI86LA088

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - on ground/water, landing - roll
  - terrain condition - icy (contributing factor)
  - weather evaluation - not understood, pilot in command (cause)
  - unsafe/hazardous condition warning - inaccurate, fbo personnel (contributing factor)
- On ground/water encounter with terrain/water, landing - roll

## Analysis

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.

## Aircraft

- Registration: [N8663K](https://openairdocs.org/deregistered/N8663K-2012-08-09), registration cancelled 2012-08-09, S/N 340A0609, built 1978 (OpenAirDocs)
- Reported make and model: CESSNA 340A
- Registry model: [Cessna 340A](https://openairdocs.org/model/cessna-340a) (registry code 2076405) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 0609
- Airframe hours: 2020
- Engines: CONTINENTAL TSIO-520-NB 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Soren P. Korsgard
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, February 1, 1985, 2 hours before
- Departed: LEX, LEXINGTON, KY
- Flight plan: IFR
- Airport: C18, Frankfort, runway 27, 3,176 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 3,858 total, 356 in this make and model, 3,593 as pilot in command, 188 in the last 90 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 5 knots
- Visibility: 2 statute miles
- Lowest ceiling: 1,500 ft overcast
- Temperature: 28 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19860216002859A](https://openairdocs.org/incident/19860216002859A), Feb 16, 1986: Cessna 340A, Frankfort, IL, Substantial damage. Landed on the ice covered runway. Braking action was nil. Slid off the runway end, across ditches,and into a field.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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