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NTSB Report
July 6, 1990 · Bell 206B · N3894L
San Antonio, TX
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 6, 1990
Injury Outcomes
1 injury (1 fatality), 2 uninjured
Location
San Antonio, TX
Aircraft
Bell 206B
Tail Number
N3894L
Operator
Biscayne Helicopter
Injuries
Fatal
NTSB Number
FTW90LA133
THE HELICOPTER WAS CONDUCTING A BAREHAND LIVE-LINE OPERATION OVER THE 345,000-VOLT ENERGIZED POWER LINE, AND WAS LOWERING THE ELECTRICAL LINEWORKER/FLIGHT CREWMAN TOWARD THE WORK AREA. THE WORKER RAISED HIS ARM WHICH COMPROMISED THE AIRGAP, AND RESULTED IN A FLASHOVER AND ELECTROCUTION.
NTSB Probable Cause
THE LINEMAN/FLIGHT CREWMAN NOT FOLLOWING PROCEDURES.
Full Narrative
THE HELICOPTER WAS CONDUCTING A BAREHAND LIVE-LINE OPERATION OVER THE 345,000-VOLT ENERGIZED POWER LINE, AND WAS LOWERING THE ELECTRICAL LINEWORKER/FLIGHT CREWMAN TOWARD THE WORK AREA. THE WORKER RAISED HIS ARM WHICH COMPROMISED THE AIRGAP, AND RESULTED IN A FLASHOVER AND ELECTROCUTION.
Flight
Event TypeAccident
Event Time07:00 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 206B
Tail NumberN3894L
Aircraft CategoryHeli
OperatorBiscayne Helicopter
Operating RulePart 133
Engines1
Engine TypeTurboshaft
Engine DetailsAllison · 250-C20J · Turboshaft · 317
Seats5
People & Injuries
Injury Summary1 injury (1 fatality), 2 uninjured
Fatal1
Serious0
Minor0
Uninjured2
Total3
Crew 1Age 35 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind180° @ 7 kt
Visibility5 sm
CeilingBroken clouds 3500 ft
Altimeter30.00 inHg
Observation Time06:53
Weather SourcePILO