# NTSB CHI08CA081: Cessna 425, N67726, Cahokia, IL, February 13, 2008

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: February 12, 2008, 20:15 local (Feb 13, 2008, 02:15 UTC)
- Place: Cahokia, IL
- Coordinates: 38.570556, -90.156112
- Nearby events: https://openairdocs.org/map.md?lat=38.5706&lon=-90.1561&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Defining event: [Taxi-into takeoff position: Ground collision](https://openairdocs.org/ntsb-events/200)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 31, 2008
- Report: Approved by Office Director
- Parties: Federal Aviation Administration
- NTSB case key (mKey): 67548
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI08CA081
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67548/pdf
- Page: https://openairdocs.org/ntsb/CHI08CA081

## Probable cause

The pilot not maintaining clearance from the runway sign during taxi for takeoff.  A factor contributing to the accident was an icy taxiway.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Object/animal/substance: sign/marker](https://openairdocs.org/ntsb-findings/03022015): Environmental issues › Physical environment · Not specified; cases with it: [All aircraft, 214 cases](https://openairdocs.org/ntsb-findings/03022015/cases.md)
- [Runway/land/takeoff/taxi surface: snow/slush/ice covered surface](https://openairdocs.org/ntsb-findings/03023015): Environmental issues › Physical environment · Not specified (probable cause); cases with it: [All aircraft, 219 cases](https://openairdocs.org/ntsb-findings/03023015/cases.md)
- [Performance/control parameters: altitude](https://openairdocs.org/ntsb-findings/01062012): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [All aircraft, 1,310 cases](https://openairdocs.org/ntsb-findings/01062012/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Taxi-into takeoff position: Airport occurrence](https://openairdocs.org/ntsb-events/070); cases with it: [All aircraft, 56 cases](https://openairdocs.org/ntsb-events/070/sequence.md)
- [Taxi-into takeoff position: Ground collision](https://openairdocs.org/ntsb-events/200) (defining event); cases with it: [All aircraft, 618 cases](https://openairdocs.org/ntsb-events/200/sequence.md)

## Analysis

The airplane impacted a runway sign during taxi for takeoff on an icy taxiway.  The pilot reported no mechanical malfunctions with the airplane reference the accident flight.  The pilot stated that the airport issued notices to airmen indicating "poor braking conditions" in effect, and "1/4" inch of ice covering runways and taxiways.

## Factual narrative

The airplane impacted a runway sign during taxi for takeoff on an icy taxiway.  The pilot reported no mechanical malfunctions with the airplane reference the accident flight.  The pilot reported that the airport issued notices to airmen indicating "poor braking conditions" in effect and "1/4" inch of ice covering runways and taxiways.

## Aircraft

- Registration: N67726 (not matched to a registry record)
- Reported make and model: Cessna 425
- Category: Airplane
- Serial number: 425-0030
- Airframe hours: 4707
- Engines: Pratt & Whitney PT6A-112 turbo prop
- Damage: Substantial damage
- Flight: Part 135
- Operator: Flight Concepts Inc
- Registered owner: Skycope LLC
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, February 1, 2008
- Departed: Cahokia, IL
- Destination: TUL, TULSA, OK
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; injuries: none; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review September 1, 2007; seat: left; flight hours: 2,685 total, 455 in this make and model, 2,490 as pilot in command, 125 in the last 90 days, 42 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night
- Observed at: CPS

## 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 20080212011249A](https://openairdocs.org/incident/20080212011249A), Feb 12, 2008: Cessna 425, Cahokia/St Lou, IL, Substantial damage. (-23) Aircraft was turning from taxiway b to B6 when aircraft slid off ice covered taxiway while making turn. Right propeller hit taxi sign causing damage to…

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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