# NTSB SEA88LA007: Cessna 180K, N63071, Petersburg, AK, October 16, 1987

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: October 16, 1987, 15:59 local (23:59 UTC)
- Place: Petersburg, AK
- Coordinates: 57.049076, -132.620727 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=57.0491&lon=-132.6207&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report October 25, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 40751
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA88LA007
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40751/pdf
- Page: https://openairdocs.org/ntsb/SEA88LA007

## 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
  - directional control - not maintained, pilot in command (cause)
  - water loop/swerve - inadvertent, pilot in command (cause)
  - lack of total experience, pilot in command (contributing factor)
- Nose over, landing - roll

## Analysis

THE PLT OF THE FLOATPLANE RPRTD THAT AFTER THE ACFT TOUCHED DOWN DRG A WATER LNDG & WAS ON THE 'ROLL-OUT,'  SHE PUSHED THE CARB HEAT IN & LEANED FORWARD TO RAISE THE FLAPS. AT ABOUT THAT TIME, THE FLOATPLANE BGN TO SWERVE. SHE ATTEMPTED TO REGAIN CONTROL; HOWEVER, THE LEFT WING OF THE FLOATPLANE STRUCK THE WATER, THEN THE ACFT NOSED DOWN & ROLLED OVER.

## Aircraft

- Registration: N63071 (not matched to a registry record)
- Reported make and model: CESSNA 180K
- Category: Airplane
- Serial number: 18052824
- Airframe hours: 974
- Engines: CONTINENTAL O-470-U 230 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Kathryn A. Chaney
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, November 5, 1986
- Departed: PETERSBURG, AK
- Flight plan: VFR
- Airport: 63A, Petersburgs Seaplane, runway 4, 10,000 × 500 ft, water

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; private; airplane ratings: single-engine land, single-engine sea; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 50 total, 26 in this make and model, 42 as pilot in command, 50 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 6 knots
- Visibility: 8 statute miles
- Lowest ceiling: 2,800 ft broken
- Temperature: 48 °F, dew point 39 °F
- Altimeter: 30.00 inHg
- Observed at: PSG

## 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 19871016061759A](https://openairdocs.org/incident/19871016061759A), Oct 16, 1987: Cessna 180K, Petersburg, AK, Substantial damage. After water landing reached down to raise flaps lost control swerved dipped a wing and stopped inverted.

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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