DEN05LA024

NTSB accident investigation · Bell 206B3 · Eureka, UT · November 13, 2004

Accident · No injuriesLimited investigationFinal report
Date
November 13, 2004, 13:30 local (20:30 UTC)
Place
Eureka, UT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N130JHBell 206B3
Weather
Visual (VMC) · Day
Status
Completed · report July 7, 2005
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20041113029479A
Case key
60552

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 NTSB’s determination of the probable cause, and any contributing factors.

the pilot's improper in-flight planning and decision making and failure to maintain obstacle clearance, resulting in contact with a power transmission line. Contributing factors include the intentional low-level maneuver, the power transmission line, and the pilot's inadequate visual lookout.

Analysis

According to the pilot, he was flying above a highway and was repositioning for a filming operation. He approached a hill and climbed to an altitude of approximately 100 feet agl. After cresting the hill, he scanned the area ahead. He noticed a series of power transmission poles, paralleling the right side of the road ahead, but did not see any on the left. The pilot descended to approximately 30 feet agl to continue to follow the road. As he leveled out, at approximately 40 knots, the helicopter struck a power transmission line that stretched across the road. The pilot stated that he saw a "flash," and felt the helicopter begin to "vibrate and shake." He stated that he had cyclic and collective control, and attempted a forced landing on the road. The helicopter impacted the road, slid approximately 50 yards into the right side ditch. When the helicopter came to a stop, it rocked up on its nose, and the main rotor blades struck the ground. As the main rotor assembly pitched backward, the main rotor blades severed the tail boom, and then the main rotor hub and blade assembly separated from the mast. The helicopter remained upright and on its landing skids.

Factual narrative

On November 13, 2004, approximately 1330 mountain standard time, a Bell 206B3, N130JH, operated by AV Enterprises, Inc., was substantially damaged when it struck a power transmission line while maneuvering near Eureka, Utah. Visual meteorological conditions prevailed at the time of the accident. The local flight was being conducted under the provisions of Title 14 CFR Part 91 without a flight plan. The commercial pilot and one passenger were not injured. The flight originated at Faust, Utah, at 1300.

According to the pilot, he was following Highway 36 near Eureka, and was repositioning for a filming operation. As he approached a hill, he climbed to an altitude of approximately 100 feet agl. After cresting the hill, he scanned the area ahead. He stated that he noticed a series of power transmission poles, paralleling the right side of the road ahead, but did not see any on the left. The pilot descended to approximately 30 feet agl. As he leveled out, at approximately 40 knots, the helicopter struck a power transmission line that stretched across the road. The pilot stated that he saw a "flash," and felt the helicopter begin to "vibrate and shake." He stated that he had cyclic and collective control, and attempted a forced landing on the road. The helicopter impacted the road, slid approximately 50 yards into the right side ditch. When the helicopter came to a stop, it rocked up on its nose, and the main rotor blades struck the ground. As the main rotor assembly pitched backward, the main rotor blades severed the tail boom, and then the main rotor hub and blade assembly separated from the mast. The helicopter remained upright and on its landing skids.

The pilot stated that after the accident, he surveyed the area and noticed a power transmission pole on the left side of the road that was approximately 190 yards from the series of power transmission poles that were paralleling the right side of the road.

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
Altitude/clearance - not maintainedPilot in commandCause
Object - wire,transmissionFactor
In-flight planning/decision - improperPilot in commandCause
Low altitude flight/maneuver - intentionalPilot in commandFactor
Visual lookout - inadequatePilot in commandFactor
Forced landingDescent - emergency
Autorotation - initiatedPilot in command
Run on landing - performedPilot in command
Hard landingDescent - emergency
Rotor system,main rotor - separation
Misc rotorcraft,tail boom - sheared

Aircraft

Registration
N130JH
Reported as
Bell 206B3
Category
Helicopter
Serial number
4166
Engine
Rolls-Royce 250-C20B, 420 horsepower, turbo shaft
Damage
Substantial damage
Flight
Other work use · Part 91
Registered owner
AV Enterprises, Inc.
Airworthiness certificate
Standard, Normal
Departed
Faust, UT
Destination
Eureka, UT

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
55
Injuries
None
Certificates
Commercial, Flight engineer
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Helicopter, Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
June 5, 2004
Seat
Right
Flight hours
4,484 total · 1,706 in this make and model · 3,665 as pilot in command · 87 in the last 90 days · 35 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point 37 °F
Altimeter
30.05 inHg
Observed at
KPVU, 25 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.