LAX08CA054

NTSB accident investigation · Bell OH-58A · Brawley, CA · January 30, 2008

Accident · No injuriesData collectionFinal report
Date
January 29, 2008, 20:45 local (Jan 30, 2008, 04:45 UTC)
Place
Brawley, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N902SFBell OH-58A
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Night
Status
Completed · report March 31, 2008
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20080129009999A
Case key
67461

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

On this page

Probable cause

The pilot's failure to maintain clearance from obstacles. A factor in the accident was the dark night conditions.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Object/animal/substance: wireEnvironmental issues › Physical environment · Contributed to outcomeBell OH-58A: 9 casesAll aircraft: 588 cases
Light condition: darkEnvironmental issues › Conditions/weather/phenomena · Not specifiedBell OH-58A: 1 caseAll aircraft: 448 casesProbable cause
Performance/control parameters: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedBell OH-58A: 4 casesAll aircraft: 1,310 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot was spraying fields at night. He had just completed spraying a field and was climbing out to move to a second field when the helicopter collided with unmarked high tension electrical wires. He felt the impact and was momentarily blinded by the bright electrical flash. The pilot reported that the helicopter was out of control and after about 2 or 3 seconds, the helicopter impacted the ground. After impact, he unbuckled his seatbelt and exited the helicopter. He reported that the engine was still running and he continued to experience some blindness. The pilot walked a few steps away from the helicopter before his regained his vision. He looked back at the helicopter to make sure there was no fire, and then went back to it, and shut it down. The pilot stated that there were no preimpact mechanical problems with the helicopter. The pilot said he had been spraying in this area for years and was aware of the general location of the power lines in the area.

Factual narrative

The pilot reported that he was spraying fields at night, and prior to the accident he had just completed spraying a field. During the transition climb out to the second field, the helicopter struck high tension electrical wires. He felt the impact and knew that he was going to crash. The pilot reported the helicopter was out of control and he was momentarily blinded by the flash from the electrical wires. He regained his eyesight and noted that the helicopter was rolling to the right and flying in a curved direction. After about 2 or 3 seconds, the helicopter impacted the ground. After impact, the pilot unbuckled his seatbelt and exited the helicopter. He reported that the engine was still running and he continued to experience some blindness. The pilot walked a few steps away from the helicopter before his regained his vision. He looked back at the helicopter to make sure there was no fire, and went back to it, and shut it down.

The pilot stated that there were no mechanical problems with the helicopter.

The National Transportation Safety Board investigator-in-charge interviewed the pilot, he stated that he had been spraying in this area for years and was aware of the power lines in the area.

Aircraft

Registration
N902SF
Reported as
Bell OH-58A
Category
Helicopter
Serial number
70-15406
Airframe hours
6,472.1
Engine
Allison T63, turbo shaft
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Farm Aviation Inc
Registered owner
Farm Aviation Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Continuous airworthiness · January 1, 2008
Departed
BWC · Brawley, CA
Destination
BWC
Airport
BWC · Brawley Muni

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
52
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2
Seat
Right
Flight hours
16,600 total · 6,000 in this make and model · 16,600 as pilot in command · 120 in the last 90 days · 40 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night
Wind
290° at 3 knots
Visibility
25 statute miles
Lowest ceiling
None
Temperature
61 °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 N902SF · 2

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