# NTSB ANC83LA067: Piper PA-18, N9667P, Port Alsworth, AK, April 6, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 6, 1983, 17:30 local (21:30 UTC)
- Place: Port Alsworth, AK
- Coordinates: 60.199497, -154.279037 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=60.1995&lon=-154.2790&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (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): 4112
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC83LA067
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4112/pdf
- Page: https://openairdocs.org/ntsb/ANC83LA067

## Sequence of events

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

- Loss of control - on ground/water, landing - flare/touchdown
  - weather condition - tailwind (contributing factor)
  - directional control - not maintained, pilot in command (cause)
  - lack of total experience, pilot in command (contributing factor)
  - ground loop/swerve - inadvertent, pilot in command
- Nose over, landing - roll

## Analysis

THE PLT LANDED ON RWY 3 AFTER WATCHING A FRIEND IN ANOTHER ANOTHER ACFT LAND SUCCESSFULLY FIRST. THE ACFT THEN WENT OFF THE LEFT SIDE OF THE RWY INTO LARGE ROCKS & NOSED OVER. AFTER LANDING THE PLT STATED HE SAW NO WIND SOCK & THINKS THE WIND WAS FROM THE SW & A GUST LIFTED THE ACFT TAIL.

## Aircraft

- Registration: [N9667P](https://openairdocs.org/aircraft/N9667P), registered now, S/N 18-7509012, built 1974 (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: 18-7509012
- Airframe hours: 1459
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Bear Lake Lodge, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 11, 1983, 0 hours before
- Departed: 5NK, NAKNEK, AK
- Destination: ENA, KENAI, AK
- Airport: Port Alsworth, runway 3, 3,000 × 100 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 85 total, 26 in this make and model, 40 as pilot in command, 36 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 8 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 32 °F, dew point 30 °F
- Altimeter: 29.00 inHg
- Observed at: AKN, 128 nm away

## 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 19830406011829A](https://openairdocs.org/incident/19830406011829A), Apr 6, 1983: Piper PA18150, Port Alsworth, AK, Substantial damage. Landed downwind. Lost directional control. Left the runway. Struck rocks and flipped 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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