# NTSB ANC88LA048: Cessna 206, N51205, Cantwell, AK, April 19, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 18, 1988, 18:45 local (Apr 19, 1988, 02:45 UTC)
- Place: Cantwell, AK
- Coordinates: 63.010906, -149.400085 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=63.0109&lon=-149.4001&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report April 25, 1989
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5000
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC88LA048
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5000/pdf
- Page: https://openairdocs.org/ntsb/ANC88LA048

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - directional control - not maintained, pilot in command (cause)
  - terrain condition - soft (contributing factor)
  - preflight planning/preparation - inadequate, pilot in command (cause)
- On ground/water encounter with terrain/water, takeoff - roll/run
  - terrain condition - snowbank (contributing factor)

## Analysis

THE AIR-TAXI PILOT STATED THAT HE ATTEMPTED TO TAKEOFF FROM A PRIVATE, DIRT RUNWAY THAT WAS DRY IN THE MIDDLE AND MUDDY TOWARDS THE EDGES. DURING THE TAKEOFF ROLL, THE AIRPLANE'S LEFT MAIN GEAR TIRE ENCOUNTERED THE SOFT, MUDDY AREA AND TURNED ABRUPTLY TOWARDS THE LEFT EDGE OF THE RUNWAY, COLLIDING WITH A LARGE SNOW BANK AND STOPPING THE AIRPLANE.

## Aircraft

- Registration: [N51205](https://openairdocs.org/deregistered/N51205-2013-03-25), registration cancelled 2013-03-25, S/N U20601979, built 1973 (OpenAirDocs)
- Reported make and model: CESSNA 206
- Registry model: [Cessna U206F](https://openairdocs.org/model/cessna-u206f) (registry code 2073333) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: U20601979
- Airframe hours: 4916
- Engines: CONTINENTAL IO-520 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Airlift Alaska
- Registered owner: Yorke, Michael J.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, March 11, 1988, 68 hours before
- Destination: MRI, ANCHORAGE, AK
- Flight plan: VFR
- Airport: Private Airstrip

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; airline transport, flight instructor, commercial; airplane ratings: single-engine land, single-engine sea, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 4,833 total, 569 in this make and model, 4,752 as pilot in command, 240 in the last 90 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 225° at 7 knots
- Visibility: 20 statute miles
- Lowest ceiling: 4,000 ft broken
- Temperature: 36 °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 19880418013669A](https://openairdocs.org/incident/19880418013669A), Apr 18, 1988: Cessna U206F, Cantwell, AK, Substantial damage. On takeoff left tire hit section of mud that turned plane resulting in impact with runway perimeter snowbank.

## Other investigations on N51205 (2)

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.

- [NTSB ANC05LA085](https://openairdocs.org/ntsb/ANC05LA085), Jun 13, 2005: Cessna U206F (N51205), Skwentna, AK, substantial damage. Probable cause: The pilot's improper loading of externally carried lumber that caught fire due to exposure to hot exhaust gases during cruise flight, which resulted in an emergency descent/landing and subsequent…
- [NTSB ANC87LA064](https://openairdocs.org/ntsb/ANC87LA064), Apr 30, 1987: Cessna 206 (N51205), Pt. Mackenzie, AK, substantial damage

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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