# NTSB ANC89LA062: Piper PA-18, N90918, Anchorage, AK, April 22, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 22, 1989, 13:30 local (21:30 UTC)
- Place: Anchorage, AK
- Coordinates: 61.180625, -149.880981 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.1806&lon=-149.8810&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 28, 1990
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5178
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC89LA062
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5178/pdf
- Page: https://openairdocs.org/ntsb/ANC89LA062

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE DURING THE LANDING ROLL.

## 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)
- Dragged wing,rotor,pod,float or tail/skid, landing - roll

## Analysis

ON LANDING THE PILOT LOST DIRECTIONAL CONTROL OF THE AIRPLANE WHICH SUBSEQUENTLY GROUND LOOPED.

## Aircraft

- Registration: [N90918](https://openairdocs.org/deregistered/N90918-2021-12-04), registration cancelled 2021-12-04, S/N 18-8109044, built 1981 (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: 188109044
- Airframe hours: 1320
- Engines: LYCOMING O-360 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Richard Bennett
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, February 1, 1989, 6 hours before
- Airport: EDF, Elmendorf, runway 5, 10,000 × 200 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; commercial; airplane ratings: single-engine sea, multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 5,200 total, 150 in this make and model, 5,100 as pilot in command, 30 in the last 90 days, 14 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 60° at 6 knots
- Lowest ceiling: 7,000 ft overcast
- Temperature: 50 °F, dew point 46 °F
- Altimeter: 30.00 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 19890422010109A](https://openairdocs.org/incident/19890422010109A), Apr 22, 1989: Piper PA18150, Anchorage, AK, Substantial damage. Lost control and ground looped on landing.

## Other investigations on N90918 (1)

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 ANC10CA039](https://openairdocs.org/ntsb/ANC10CA039), May 6, 2010: Piper PA-18-150 (N90918), Cape Yakataga, AK, substantial damage. Probable cause: The uncertificated pilot's selection of an unsuitable landing site, resulting in a main landing gear collapse during the landing roll.

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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