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NTSB Report

September 9, 1987 · Bell 206B · N1082S

Vallejo, CA

Overview

Report Status

Preliminary report

Event Type

Accident

Date

September 9, 1987

Injury Outcomes

3 injuries (3 fatalities)

Location

Vallejo, CA

Aircraft

Bell 206B

Tail Number

N1082S

Operator

Commodore Helicopters

Injuries

Fatal

Aircraft Damage

Destroyed

NTSB Number

LAX87FA332

WHILE PERFORMING A ROUTINE AERIAL OBSERVATION FLIGHT TO INSPECT THE INTEGRITY OF THE PACIFIC GAS & ELECTRIC COMPANY'S TRANSMISSION LINES, THE HELICOPTER CRASHED AFTER COLLIDING WITH AN UNMARKED STATIC WIRE. THE LINE INSTALLATION WAS ON SLOPING TERRAIN & CONSISTED OF 3 TOWERS. THE SEVERED STATIC LINE WAS SUPPORTED BY TOWERS HAVING HIGHER ELEVATIONS. THE PLT FAILED TO DETECT & AVOID THE ELEVATED STATIC LINE. PG & E FAILED TO PROVIDE THE PLT WITH ADVANCE NOTICE OF THE HAZARDOUS & SOMEWHAT UNIQUE LINE CONFIGURATION.

Full Narrative

WHILE PERFORMING A ROUTINE AERIAL OBSERVATION FLIGHT TO INSPECT THE INTEGRITY OF THE PACIFIC GAS & ELECTRIC COMPANY'S TRANSMISSION LINES, THE HELICOPTER CRASHED AFTER COLLIDING WITH AN UNMARKED STATIC WIRE. THE LINE INSTALLATION WAS ON SLOPING TERRAIN & CONSISTED OF 3 TOWERS. THE SEVERED STATIC LINE WAS SUPPORTED BY TOWERS HAVING HIGHER ELEVATIONS. THE PLT FAILED TO DETECT & AVOID THE ELEVATED STATIC LINE. PG & E FAILED TO PROVIDE THE PLT WITH ADVANCE NOTICE OF THE HAZARDOUS & SOMEWHAT UNIQUE LINE CONFIGURATION.

Flight

Event TypeAccident

Event Time11:38 PDT

Nearest Airport0nm N

Runway0

Runway Length0

Runway Width0

Flight Plan FiledCvfr

Aircraft FireNo

Aircraft ExplosionNo

Aircraft

AircraftBell 206B

Tail NumberN1082S

Aircraft CategoryHeli

DamageDestroyed

OperatorCommodore Helicopters

Operating RulePart 91

Engines1

Engine TypeTurboshaft

Engine DetailsAllison · 250-C20B · Turboshaft · 420

Seats5

People & Injuries

Injury Summary3 injuries (3 fatalities)

Fatal3

Serious0

Minor0

Uninjured0

Total3

Crew 1Age 40 · Second Class

Conditions

ConditionsVMC

LightDaylight

WindCalm

Visibility3 sm

CeilingNone

Temperature / Dew Point64 F / 0 C

Altimeter0

Weather SourceWIT

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September 9, 1987 · Bell 206B · N1082S

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