# NTSB ANC91LA133: Beech B-18H, N228A, White Mountain, AK, August 25, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 24, 1991, 18:42 local (Aug 25, 1991, 02:42 UTC)
- Place: White Mountain, AK
- Coordinates: 64.709251, -164.619461 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=64.7093&lon=-164.6195&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 10, 1993
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5608
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC91LA133
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5608/pdf
- Page: https://openairdocs.org/ntsb/ANC91LA133

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE DURING THE LANDING ROLL.

## 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)
- Nose over, landing - roll

## Analysis

AFTER TOUCHDOWN ON THE RUNWAY, THE PILOT NOTICED AN ASYMMETRICAL DRAG ORIGINATING FROM THE LEFT SIDE OF THE PLANE. THE PILOT LOST DIRECTIONAL CONTROL OF THE AIRPLANE AND THE AIRPLANE NOSED OVER ON ITS BACK.

## Aircraft

- Registration: [N228A](https://openairdocs.org/deregistered/N228A-2018-08-25), registration cancelled 2018-08-25, S/N BA-629, built 1962 (OpenAirDocs)
- Reported make and model: Beech B-18H
- 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: BA629
- Airframe hours: 6650
- Engines: P&W R-985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Operator: Bering Air, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: AAIP, July 31, 1991, 18 hours before
- Departed: GLV, GOLOVIN, AK
- Flight plan: VFR
- Airport: WMO, White Mountain, runway 33, 2,100 × 75 ft, gravel

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; flight instructor, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 5,750 total, 800 in this make and model, 5,750 as pilot in command, 290 in the last 90 days, 100 in the last 30 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 0° at 15 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 50 °F, dew point 37 °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 19910824036519A](https://openairdocs.org/incident/19910824036519A), Aug 24, 1991: Beech H18, White Mountain, AK, Substantial damage. Landing long,used excessive braking. Nosed over near end of runway.

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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