# NTSB SEA86LA250: Cessna 180, N9138T, Dry Bay, AK, September 23, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 23, 1986, 12:40 local (20:40 UTC)
- Place: Dry Bay, AK
- Coordinates: 59.509838, -139.709579 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=59.5098&lon=-139.7096&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40504
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA86LA250
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40504/pdf
- Page: https://openairdocs.org/ntsb/SEA86LA250

## Sequence of events

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

- Loss of control - in flight, go-around (vfr)
  - in-flight planning/decision - delayed, pilot in command (cause)
  - weather condition - gusts (contributing factor)
  - weather condition - high wind (contributing factor)
  - weather condition - downdraft (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

GUSTY WINDS WERE PRESENT AT THE AIRSTRIP WHEN THE PLT ELECTED TO GO-AROUND DURING THE APCH. DURING THE GO-AROUND, A DOWNDRAFT WAS ENCOUNTERED. THE PLT LOST CONTROL OF THE ACFT WHICH ROLLED INVERTED AND STRUCK THE GROUND. THE PLT REPORTED THE WIND VELOCITY VARIED FROM ZERO TO 50 KTS AT THE TIME OF THE ACCIDENT.

## Aircraft

- Registration: [N9138T](https://openairdocs.org/aircraft/N9138T), registered now, S/N 50638, built 1959 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180B](https://openairdocs.org/model/cessna-180b) (registry code 2072606) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 50638
- Airframe hours: 6261
- Engines: CONTINENTAL O-470-K 230 horsepower reciprocating
- Damage: Destroyed
- Flight: Positioning, Part 91
- Registered owner: Gulf Air Taxi
- Airworthiness certificate: Standard, Utility; Standard, Normal
- Departed: YKT, YUKATAT, AK
- Destination: CROWS STRIP, AK
- Airport: Crows Landing

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 4,250 total, 210 in this make and model, 4,130 as pilot in command, 175 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 50 statute miles
- Lowest ceiling: 10,000 ft overcast
- Temperature: 55 °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 19860923082819A](https://openairdocs.org/incident/19860923082819A), Sep 23, 1986: Cessna 180B, Dry Bay, AK, Destroyed. The aircraft was flipped over by severe turbulence during go around. Aircraft struck the ground inverted.

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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