# NTSB ANC90LA153: Piper PA-18, N72BW, King Salmon, AK, August 27, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 26, 1990, 21:00 local (Aug 27, 1990, 05:00 UTC)
- Place: King Salmon, AK
- Coordinates: 58.750045, -156.540176 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=58.7500&lon=-156.5402&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 15, 1992
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5436
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC90LA153
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5436/pdf
- Page: https://openairdocs.org/ntsb/ANC90LA153

## Probable cause

THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE ON LANDING.

## Sequence of events

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

- Loss of control - on ground/water, landing - aborted
  - directional control - not maintained, pilot in command (cause)
  - aircraft handling - improper, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll

## Analysis

THE PILOT STATED THAT HE LOST DIRECTIONAL CONTROL OF THE AIRPLANE DURING THE LANDING ROLL. THE AIRPLANE SUBSEQUENTLY GROUND LOOPED. THE AIRPLANE WAS SUBSTANTIALLY DAMAGED. THE PILOT AND PASSENGER WERE NOT INJURED.

## Aircraft

- Registration: [N72BW](https://openairdocs.org/aircraft/N72BW), registered now, S/N 18-159, built 1950 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18159
- Airframe hours: 4810
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: O. J. Chaipman
- Registered owner: Unknown
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 2, 1990, 13 hours before
- Airport: AKN, King Salmon, runway 29, 8,500 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: front; flight hours: 262 total, 172 in this make and model, 212 as pilot in command, 42 in the last 90 days, 9 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 16 knots
- Visibility: 15 statute miles
- Lowest ceiling: 1,100 ft overcast
- Temperature: 61 °F, dew point 59 °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 19900826036369A](https://openairdocs.org/incident/19900826036369A), Aug 26, 1990: Piper PA18150, King Salmon, AK, Substantial damage. Lost control and ground looped. Landed in a gusty crosswind.

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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