# NTSB ANC83LA104: Piper PA-18, N2568J, Palmer, AK, June 24, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 24, 1983, 12:00 local (20:00 UTC)
- Place: Palmer, AK
- Coordinates: 61.619647, -148.980255 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.6196&lon=-148.9803&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (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): 4134
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC83LA104
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4134/pdf
- Page: https://openairdocs.org/ntsb/ANC83LA104

## Sequence of events

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

- Loss of engine power, cruise - normal
  - reason for occurrence undetermined (contributing factor)
  - precautionary landing - performed, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, takeoff - roll/run
  - preflight planning/preparation - inadequate, pilot in command (cause)
  - terrain condition - rough/uneven (contributing factor)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
- Nose over, takeoff - roll/run

## Analysis

THE ACFT HAD BEEN ON A SIGHT SEEING FLT WHEN THE ENGINE BEGAN TO LOSE POWER AND RUN ROUGH. THE PILOT DECIDED TO MAKE A PRECAUTIONARY LANDING ON THE GLACIER. HE WAS ATTEMPTING TO TAKEOFF WITHOUT PAX AND EXCESS FUEL DUE TO SLUSHY ICE. THE ENGINE WAS DEVELOPING FULL POWER DURING THE TAKEOFF BUT THE ACFT HIT A HOLE IN THE ICE AND FLIPPED OVER.

## Aircraft

- Registration: [N2568J](https://openairdocs.org/aircraft/N2568J), registered now, S/N 18-7909131, built 1979 (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: A48202
- Airframe hours: 250
- Engines: LYCOMING O-320 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Murphy, George T.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 12, 1982, 50 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; private; airplane ratings: single-engine sea, single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 622 total, 600 in this make and model, 600 as pilot in command, 30 in the last 90 days, 15 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 39 °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 19830624029489A](https://openairdocs.org/incident/19830624029489A), Jun 24, 1983: Piper PA18150, Marcus Baker Gl, AK, Substantial damage. Landed on a glacier with a rough engine. Off loaded passengers. Tried to take off. Struck a hole in ice. Nosed 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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