# NTSB ANC90FA116: Piper PA-18-150, N1756A, Anchorage, AK, July 13, 1990

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Field investigation · Final report
- Date: July 13, 1990, 14:25 local (22:25 UTC)
- Place: Anchorage, AK
- Coordinates: 61.159889, -149.990066 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=61.1599&lon=-149.9901&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5301
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC90FA116
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5301/pdf
- Page: https://openairdocs.org/ntsb/ANC90FA116

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN FLYING SPEED DURING CLIMBOUT WHICH RESULTED IN A STALL.

## Sequence of events

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

- In flight encounter with weather, takeoff - initial climb
  - weather condition - gusts
- Loss of control - in flight, takeoff - initial climb
  - airspeed(vs) - not maintained, pilot in command (cause)
  - stall/spin - uncontrolled, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PRIVATE PILOT STATED THAT JUST AFTER GETTING AIRBORNE HE ENCOUNTERED A STRONG GUSTY CROSSWIND AND THE AIRPLANE STALLED AND CRASHED INTO A RESIDENTIAL YARD. WITNESSES VERIFIED THE STRONG GUSTY WINDS.

## Aircraft

- Registration: [N1756A](https://openairdocs.org/deregistered/N1756A-1991-04-23), registration cancelled 1991-04-23, S/N 181316 (OpenAirDocs)
- Reported make and model: PIPER PA-18-150
- Registry model: [Piper PA-18-135](https://openairdocs.org/model/piper-pa-18-135) (registry code 7101820) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-1316
- Engines: LYCOMING O-320-A2B 150 horsepower reciprocating
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Personal, Part 91
- Registered owner: Thomas R. Plooy
- Departed: NONE, ANCHORAGE, AK
- Airport: NONE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; private; airplane ratings: single-engine land, single-engine sea; medical: class 3, valid medical--w/ waivers/lim; flight hours: 505 total, 75 in this make and model, 8 in the last 90 days, 8 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 160° at 19 knots, gusting 26
- Visibility: 60 statute miles
- Lowest ceiling: 8,000 ft broken
- Temperature: 64 °F, dew point 43 °F
- Altimeter: 30.00 inHg
- Observed at: ANC, 2 nm away

## 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 19900713025699A](https://openairdocs.org/incident/19900713025699A), Jul 13, 1990: Piper PA18150, Anchorage, AK, Substantial damage. Took off from lake with quartering tail wind. Report gust lifted wing turning into wind. Stalled in residential area

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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