LAX02LA262

NTSB accident investigation · Bell 47G-2 · Oasis, CA · August 25, 2002

Accident · Serious injuriesLimited investigationFinal report
Date
August 24, 2002, 18:40 local (Aug 25, 2002, 01:40 UTC)
Place
Oasis, CA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N8478HBell 47G-2
Weather
Visual (VMC) · Day
Status
Completed · report September 29, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20020824021989A
Case key
55553

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 with power lines while maneuvering during an aerial application flight.

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 - aerial application
Object - wire,transmission
Visual lookout - inadequatePilot in commandCause
Clearance - not maintainedPilot in commandCause

Analysis

The helicopter collided with power lines while conducting an aerial application flight. The local weather conditions were clear skies and 10 statute miles visibility.

Factual narrative

On August 24, 2002, at 1840 Pacific daylight time, a Bell 47G-2, N8478H, collided with power lines during aerial application maneuvering near Oasis, California. The helicopter, operated by Salton Sea Air Services under the provisions of 14 CFR Part 137 as an agricultural crop dusting operation, sustained substantial damage. The commercial pilot, the sole occupant, sustained serious injuries. Visual meteorological conditions prevailed for the local area flight, and no flight plan had been filed. The helicopter departed from a private strip near the accident site, and was scheduled to terminate at the private strip.

In a written statement provided by the pilot, he stated that he was working for a local citrus nursery when he "hit some power lines."

The weather conditions in the local area at the time of the accident were clear skies and 10 statute miles visibility.

The pilot had accumulated a total of 19,950 flight hours, of which 710 hours were accumulated in helicopters. All of his helicopter flight time was in the Bell 47.

Aircraft

Registration
N8478H
Reported as
Bell 47G-2
Category
Helicopter
Serial number
2214
Airframe hours
13,406
Engine
Lycoming UO 435-A1F, 265 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Salton Sea Air Services
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · January 1, 2002 · 208 hours before
Departed
Oasis, CA

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
54
Injuries
Serious
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
August 24, 2001
Seat
Left
Flight hours
19,950 total · 710 in this make and model · 19,750 as pilot in command · 140 in the last 90 days · 50 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
97 °F, dew point 45 °F
Altimeter
29.76 inHg
Observed at
TRM, 10 nm away

FAA reports on this event · 1

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