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NTSB Report

January 12, 1989 · Hughes 500-D · N5074R

Bell Mountain, AK

Overview

Report Status

Probable Cause

Event Type

Accident

Date

January 12, 1989

Injury Outcomes

No injuries (2 uninjured)

Location

Bell Mountain, AK

Aircraft

Hughes 500-D

Tail Number

N5074R

Operator

Soloy L C

Injuries

None

Aircraft Damage

Substantial

NTSB Number

ANC89LA033

THE PILOT ENCOUNTERED A COMPLETE WHITEOUT CONDITION DURING THE APPROACH AND HOVER ON A MOUNTAIN. THE PILOT STATED THAT AFTER TOUCHDOWN THE HELICOPTER ROLLED OVER ON ITS RIGHT SIDE.

NTSB Probable Cause

THE PILOT'S MISJUDGMENT OF HIS CLEARANCE ABOVE THE TERRAIN DUE TO DISTORTED VISUAL PERCEPTION. CONTRIBUTING TO THE ACCIDENT WAS THE WHITEOUT CONDITION.

Full Narrative

THE PILOT ENCOUNTERED A COMPLETE WHITEOUT CONDITION DURING THE APPROACH AND HOVER ON A MOUNTAIN. THE PILOT STATED THAT AFTER TOUCHDOWN THE HELICOPTER ROLLED OVER ON ITS RIGHT SIDE.

Flight

Event TypeAccident

Event Time06:15 AKST

Nearest Airport0nm N

Runway0

Runway Length0

Runway Width0

Flight Plan FiledCvfr

Aircraft FireNo

Aircraft ExplosionNo

Aircraft

AircraftHughes 500-D

Tail NumberN5074R

Aircraft CategoryHeli

DamageSubstantial

OperatorSoloy L C

Operating RulePart 135

Engines1

Engine TypeTurboshaft

Engine DetailsAllison · 250-C20B · Turboshaft · 420

Seats4

People & Injuries

Injury SummaryNo injuries (2 uninjured)

Fatal0

Serious0

Minor0

Uninjured2

Total2

Crew 1Age 30 · Second Class

Conditions

ConditionsVMC

LightDaylight

Wind270° @ 5 kt

Visibility30 sm

CeilingNone

Temperature / Dew Point5 C / 0 C

Altimeter30.00 inHg

Weather SourcePILO

500 – Data service is offline

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January 12, 1989 · Hughes 500-D · N5074R

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Full Narrative