# NTSB ANC90LA169: Beech H-18S, N135W, Deering, AK, September 7, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 7, 1990, 13:00 local (21:00 UTC)
- Place: Deering, AK
- Coordinates: 66.090637, -162.75917 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=66.0906&lon=-162.7592&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 15, 1992
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5448
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC90LA169
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5448/pdf
- Page: https://openairdocs.org/ntsb/ANC90LA169

## Probable cause

THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE ON LANDING.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll

## Analysis

DURING THE LANDING ROLL, THE PILOT LOST DIRECTIONAL CONTROL OF THE AIRPLANE CAUSING THE AIRPLANE TO GROUND LOOP TO THE RIGHT. THE AIRPLANE WAS SUBSTANTIALLY DAMAGED. THE PILOT WAS NOT INJURED.

## Aircraft

- Registration: [N135W](https://openairdocs.org/deregistered/N135W-2012-08-30), registration cancelled 2012-08-30, S/N BA-643, built 1963 (OpenAirDocs)
- Reported make and model: BEECH H-18S
- Registry model: [Beech H-18](https://openairdocs.org/model/beech-h-18) (registry code 1151012) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: BA643
- Airframe hours: 11626
- Engines: P&W R-985-AN14B 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Norton Basin Services
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, July 22, 1990, 48 hours before
- Departed: OTZ, KOTZEBUE, AK
- Flight plan: VFR
- Airport: DRG, Deering, runway 2, 2,200 × 70 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; commercial, airline transport; airplane ratings: single-engine sea, multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 6,900 total, 25 in this make and model, 6,900 as pilot in command, 50 in the last 90 days, 30 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 6 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 39 °F, dew point -0 °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 19900907038369A](https://openairdocs.org/incident/19900907038369A), Sep 7, 1990: Beech H18S, Deering, AK, Substantial damage. Ground looped on touchdown.

## Other investigations on N135W (4)

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 CHI85IA091](https://openairdocs.org/ntsb/CHI85IA091), Jan 14, 1985: Beech H-18 (N135W), Dayton, OH, incident, minor damage
- [NTSB CHI81DA018](https://openairdocs.org/ntsb/CHI81DA018), Jan 9, 1981: Beech H18S (N135W), Chicago, IL
- [NTSB NYC79FA021](https://openairdocs.org/ntsb/NYC79FA021), Jan 25, 1979: Beech H18 (N135W), Pittsburgh, PA, substantial damage
- [NTSB MIA68F0406](https://openairdocs.org/ntsb/MIA68F0406), Dec 3, 1967: Beech H18 (N135W), Jacksonville, FL, 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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