# NTSB ANC88LA125: Cessna 180K, N2989K, Chickaloonflats, AK, September 5, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 5, 1988, 12:00 local (20:00 UTC)
- Place: Chickaloonflats, AK
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 21, 1989
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5066
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC88LA125
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5066/pdf
- Page: https://openairdocs.org/ntsb/ANC88LA125

## 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 - none suitable (contributing factor)
  - directional control - not maintained, pilot in command (cause)
  - unsuitable terrain or takeoff/landing/taxi area - not identified, pilot in command (cause)
- Nose over, landing - roll

## Analysis

ON TOUCHDOWN OFF SHORE ON THE MUD FLATS, THE PILOT LOST COMPLETE CONTROL OF THE AIRPLANE. THE AIRPLANE THEN NOSED OVER ON ITS BACK.

## Aircraft

- Registration: [N2989K](https://openairdocs.org/deregistered/N2989K-2003-09-04), registration cancelled 2003-09-04, S/N 18053152, built 1980 (OpenAirDocs)
- Reported make and model: CESSNA 180K
- Registry model: [Cessna 180K](https://openairdocs.org/model/cessna-180k) (registry code 2072624) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18053152
- Airframe hours: 860
- Engines: CONTINENTAL O-470M 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Adams, David
- Registered owner: Adams, David
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 18, 1988, 40 hours before
- Departed: ANCHORAGE, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; commercial; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, unknown; seat: left; flight hours: 587 total, 432 in this make and model, 466 as pilot in command, 41 in the last 90 days, 13 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 6 knots
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 55 °F, dew point 46 °F
- Altimeter: 29.00 inHg

## 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 19880905036839A](https://openairdocs.org/incident/19880905036839A), Sep 5, 1988: Cessna 180K, Chickaloon Flat, AK, Substantial damage. Landed floatplane on a mud Flat. Lost control and aircraft nosed over.

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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