SEA93LA056

NTSB accident investigation · Bell 206B3 · Brigham City, UT · January 24, 1993

Accident · No injuriesLimited investigationFinal report
Date
January 24, 1993, 14:30 local (21:30 UTC)
Place
Brigham City, UT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N39088Bell 206B3
Weather
Visual (VMC) · Day
Status
Completed · report October 13, 1993
Report
Approved by Office Director
FAA report
19930124000829A
Case key
42979

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The location of unmarked electrical transmission wires over a designated airport taxiway. Factors relating to the accident were the pilot's lack of expectancy to encounter wires above an arpt taxiway, and his diverted attention due to the close proximity of the taxiway to buildings and the loose dry snow on the airport.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with objectTaxi - aerial
Object - wire,transmissionCause
ExpectancyPilot in commandFactor
Airport facilities,obstruction marking - inadequateCause
Diverted attentionPilot in commandFactor
Object - building(nonresidential)Factor
Weather condition - snowFactor
In flight collision with terrain/waterDescent - uncontrolled
Roll overDescent - uncontrolled

Analysis

The pilot landed on the airport ramp to refuel and determined the public fuel service facility was not operating. He arranged to purchase fuel from a private opr and was hover taxiing about 400 feet from the ramp to a private hanger when the acft impacted unmarked electrical power lines 30 ft above a designated taxiway. The acft impacted on the taxiway in an uncontrolled descent and rolled over. The taxiway, located beside a hanger, and the ramp were covered with loose dry snow. The wx was dark overcast skies and limited visibility.

Aircraft

Registration
N39088
Reported as
Bell 206B3
Category
Helicopter
Serial number
3277
Airframe hours
405
Engine
Allison 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Ferry · Part 91
Operator
South Coast Helicopters
Registered owner
Charles Easton
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 18, 1993 · 5 hours before
Airport
BMC · Brigham City

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
37
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
3,623 total · 1,300 in this make and model · 3,532 as pilot in command · 56 in the last 90 days · 5 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 4 knots
Visibility
3 statute miles
Lowest ceiling
3,000 ft overcast
Temperature
27 °F, dew point 25 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.