# NTSB ANC85LA180: Cessna 180-J, N420SB, Egegik, AK, September 7, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 7, 1985, 14:00 local (22:00 UTC)
- Place: Egegik, AK
- Coordinates: 58.199401, -157.410537 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=58.1994&lon=-157.4105&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4568
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC85LA180
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4568/pdf
- Page: https://openairdocs.org/ntsb/ANC85LA180

## Sequence of events

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

- Loss of control - on ground/water, taxi - to takeoff
  - terrain condition - soft (contributing factor)
  - compensation for wind conditions - poor, pilot in command (cause)
  - complacency, pilot in command (cause)
  - inadequate certification/approval,airman, faa(organization)
  - weather condition - tailwind (cause)
  - directional control - not maintained, pilot in command (cause)
  - complacency, pilot in command (cause)
  - inadequate certification/approval,aircraft, faa(organization)
  - weather condition - high wind (cause)
- Nose over, taxi - to takeoff
  - weather condition - tailwind (cause)
  - compensation for wind conditions - poor, pilot in command (cause)
  - complacency, pilot in command (cause)
  - weather condition - high wind (cause)

## Analysis

ACFT NOSED OVER WHILE TAXIING FOR TAKEOFF FROM A DRY LAKE BED. HE WAS TAXIING WITH A 35 TO 40 KT TAILWIND.

## Aircraft

- Registration: [N420SB](https://openairdocs.org/aircraft/N420SB), registered now, S/N 18052313 (OpenAirDocs)
- Reported make and model: CESSNA 180-J
- Registry model: [Cessna 180J](https://openairdocs.org/model/cessna-180j) (registry code 2072622) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18052313
- Airframe hours: 2745
- Engines: CONTINENTAL O-470-R35 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Ronald P. Weener
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, September 1, 1984
- Destination: 5NK, NAKNEK, AK
- Airport: Lake Bed

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 1,527 total, 239 in this make and model, 1,329 as pilot in command, 34 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 35 knots, gusting 40
- Visibility: 20 statute miles
- Lowest ceiling: 1,500 ft overcast
- Temperature: 50 °F, dew point -0 °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 19850907048739A](https://openairdocs.org/incident/19850907048739A), Sep 7, 1985: Cessna 180J, Egegik, AK, Substantial damage. During downwind portion of taxi for takeoff, wind lifted tail and the aircraft flipped over.

## Other investigations on N420SB (4)

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 ANC99LA042](https://openairdocs.org/ntsb/ANC99LA042), Apr 4, 1999: Cessna 180 (N420SB), Iliamna, AK, substantial damage. Probable cause: The improper installation of the main landing gear attaching bolt by maintenance personnel, which resulted in total failure of the bolt and collapse of the landing gear.
- [NTSB ANC91LA073](https://openairdocs.org/ntsb/ANC91LA073), Jun 13, 1991: Cessna 180 (N420SB), Pilot Point, AK, substantial damage. Probable cause: FUEL EXHAUSTION, DUE TO THE PILOT'S INADEQUATE PREFLIGHT. CONTRIBUTING TO THE ACCIDENT WAS THE SOFT AND ROUGH TERRAIN.
- [NTSB ANC89LA016](https://openairdocs.org/ntsb/ANC89LA016), Nov 11, 1988: Cessna 180 (N420SB), Meshik Lake, AK, substantial damage
- [NTSB ANC89LA001](https://openairdocs.org/ntsb/ANC89LA001), Oct 2, 1988: Cessna 180 (N420SB), Wasilla, 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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