# NTSB ANC86LA046: Piper PA-18-150, N4482E, Big Lake, AK, April 15, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 15, 1986, 18:30 local (22:30 UTC)
- Place: Big Lake, AK
- Location: 61.5347° N, 149.8125° W: Placed by OpenAirDocs at BIG LAKE (BGQ), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.5347&lon=-149.8125&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): 4652
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86LA046
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4652/pdf
- Page: https://openairdocs.org/ntsb/ANC86LA046

## 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 - soft (contributing factor)
  - aircraft handling - not maintained, pilot in command (cause)
  - ground loop/swerve - inadvertent, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
- Nose over, landing - roll

## Analysis

THE PILOT STATED THAT WHILE DOING A SERIES OF TOUCH AND GO'S, THE AIRCRAFT VEERED ON THE RUNWAY; THE PILOT LOST DIRECTIONAL CONTROL OF THE AIRCRAFT CAUSING THE PLANE TO NOSE OVER ON ITS BACK.

## Aircraft

- Registration: [N4482E](https://openairdocs.org/aircraft/N4482E), registered now, S/N 18-8109025, built 1981 (OpenAirDocs)
- Reported make and model: PIPER PA-18-150
- 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: 188109025
- Airframe hours: 260
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mark C. Rowland
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 8, 1985, 3 hours before
- Departed: MRI, ANCHORAGE, AK
- Destination: BRG, BIG LAKE, AK
- Airport: BGQ, Big Lake, runway 24, 2,800 × 60 ft, snow

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; private; airplane ratings: single-engine land, single-engine sea; medical: class 3, valid medical--no waivers/lim.; seat: front; flight hours: 2,500 total, 1,200 in this make and model, 2,500 as pilot in command, 5 in the last 90 days, 2 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 100 statute miles
- Lowest ceiling: none
- Temperature: 39 °F, dew point 19 °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 19860415011999A](https://openairdocs.org/incident/19860415011999A), Apr 15, 1986: Piper PA18150, Big Lake, AK, Substantial damage. Pilot lost directional control of aircraft during landing.

## Other investigations on N4482E (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 ANC89LA158](https://openairdocs.org/ntsb/ANC89LA158), Sep 1, 1989: Piper PA-18-150 (N4482E), Trading Bay, AK, substantial damage. Probable cause: SELECTION OF UNSUITABLE TERRAIN (LANDING AREA) BY THE PILOT. CONTRIBUTING FACTORS WERE: IMPROPER INFORMATION PROVIDED BY OTHER PERSONNEL AND A HIDDEN OBSTRUCTION (LOG) IN TALL VEGETATION (GRASS).

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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