SEA89LA098

NTSB accident investigation · Bell 47G-2 · Buena, WA · June 2, 1989

Accident · Serious injuriesLimited investigationFinal report
Date
June 2, 1989, 09:20 local (16:20 UTC)
Place
Buena, WA
Injuries
1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N41721Bell 47G-2
Weather
Visual (VMC) · Day
Status
Completed · report August 2, 1990
Report
Approved by Office Director
FAA report
19890602014149A
Case key
41023

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 pilot's failure to maintain an adequate visual lookout and clearance to avoid the power lines.

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 objectManeuvering - turn to reverse direction
Object - wire,transmissionFactor
Clearance - inadequatePilot in commandCause
Visual lookout - not maintainedPilot in commandCause

Analysis

During an aerial application maneuver, the helicopter collided with power lines and subsequently the terrain. A post crash fire ignited destroying the helicopter.

Aircraft

Registration
N41721
Reported as
Bell 47G-2
Category
Helicopter
Serial number
815
Engine
Lycoming VO-435-A1B, 260 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Aerial application · Part 137
Operator
Valicopters, Inc.
Registered owner
Valicopters
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 23, 1989
Departed
Buena, WA

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
28
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,400 total · 725 in this make and model · 1,300 as pilot in command · 100 in the last 90 days · 50 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
50 statute miles
Lowest ceiling
None
Temperature
70 °F

FAA reports on this event · 1

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

Other investigations on N41721 · 2

Matched to the same aircraft by N-number and date.