# NTSB ANC86LA105: Piper PA-18, N1825A, Stoney River, AK, July 12, 1986

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Limited investigation · Final report
- Date: July 12, 1986, 15:35 local (23:35 UTC)
- Place: Stoney River, AK
- Coordinates: 63.610061, -154.780548 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=63.6101&lon=-154.7805&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4699
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC86LA105
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4699/pdf
- Page: https://openairdocs.org/ntsb/ANC86LA105

## 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(vs) - below, pilot in command (cause)
  - buzzing - attempted, pilot in command (contributing factor)
  - maneuver - excessive, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)
  - judgment - poor, pilot in command (cause)

## Analysis

ACCORDING TO A WITNESS, A CERTIFICATED PILOT, A CROWD HAD GATHERED TO WAVE, WATCH THE TAKEOFF AND TAKE PHOTOGRAPHS. THE AIRPLANE BEGAN ITS TAKEOFF ROLL ABOUT MID POINT ON THE AIRSTRIP AND ROLLED 120 FEET BEFORE LIFTING OFF. THE AIRPLANE CLIMBED STEEPLY AND THEN ENTERED A VERY STEEP BANK TO THE LEFT. THE AIRPLANE THEN PITCHED STRAIGHT DOWN AND FELL INTO THE LAKE TURNING TO THE LEFT. IT WAS THE WITNESSES IMPRESSION, THE PILOT WAS RETURNING TO 'BUZZ' THE AIRSTRIP.

## Aircraft

- Registration: [N1825A](https://openairdocs.org/deregistered/N1825A-2014-12-17), registration cancelled 2014-12-17, S/N 18-1676, built 1952 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18A](https://openairdocs.org/model/piper-pa-18a) (registry code 7101804) (OpenAirDocs)
- Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 181676
- Engines: LYCOMING O-320A2A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Michael P. Dejansen
- Airworthiness certificate: Standard, Normal
- Destination: 216, WASILLA, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; commercial; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: front; toxicology performed; flight hours: 2,285 total, 1,510 in this make and model, 2,200 as pilot in command, 135 in the last 90 days, 60 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: 61 °F

## 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 19860712032049A](https://openairdocs.org/incident/19860712032049A), Jul 12, 1986: Piper PA18A, Stony River, AK, Substantial damage. Aircraft entered steep climbing turn, stalled and spun into the ground during takeoff.

## Other investigations on N1825A (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 CHI71FBQ11](https://openairdocs.org/ntsb/CHI71FBQ11), Aug 12, 1970: Piper PA-18A (N1825A), Gibson City, IL, 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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