# NTSB ANC87LA152: Piper PA-18-150, N5656Y, Stoney River, AK, September 14, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 14, 1987, 14:00 local (22:00 UTC)
- Place: Stoney River, AK
- Location: 61.7923° N, 156.5900° W: Placed by OpenAirDocs: center of Stony River, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.7923&lon=-156.5900&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 27, 1988
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4915
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC87LA152
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4915/pdf
- Page: https://openairdocs.org/ntsb/ANC87LA152

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - airspeed - not attained, pilot in command (cause)
  - stall/mush - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, takeoff - initial climb

## Analysis

THE PILOT STATED THAT DURING THE INITIAL CLIMBOUT HE LOST DIRECTIONAL CONTROL OF THE AIRCRAFT; STALLED AND CRASHED ON THE GRAVEL BAR. PLT DID NOT SUBMIT AN ACC REPORT.

## Aircraft

- Registration: [N5656Y](https://openairdocs.org/aircraft/N5656Y), registered now, S/N 18-8290, built 1965 (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: 188290
- Airframe hours: 1500
- Engines: LYCOMING O-320 SERIES 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: William J. Dunbar
- Registered owner: William J. Dunbar
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 10, 1987, 96 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: front; flight hours: 1,500 total, 1,460 in this make and model, 1,460 as pilot in command, 35 in the last 90 days, 10 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 40 statute miles
- Lowest ceiling: 9,000 ft overcast
- Temperature: 66 °F, dew point 39 °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 19870914053049A](https://openairdocs.org/incident/19870914053049A), Sep 14, 1987: Piper PA18150, Stoney River, AK, Substantial damage. Stalled and impacted a gravel bar from which a takeoff was attempted. Pilot reported loss of control on takeoff.

## Other investigations on N5656Y (2)

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 LAX69F0016](https://openairdocs.org/ntsb/LAX69F0016), May 30, 1968: Piper PA-18 (N5656Y), Seligman, AZ, destroyed, 1 fatal
- [NTSB MKC66D0214](https://openairdocs.org/ntsb/MKC66D0214), Jul 20, 1965: Piper PA-18 (N5656Y), Desoto, MO, substantial damage

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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