SEA96LA106

NTSB accident investigation · Hughes 369HS · Arock, OR · May 31, 1996

Accident · No injuriesLimited investigationFinal report
Date
May 31, 1996, 16:00 local (22:00 UTC)
Place
Arock, OR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N444GJHughes 369HS
Weather
Visual (VMC) · Day
Status
Completed · report August 20, 1996
Report
Approved by Office Director
FAA report
19960531012299A
Case key
42377

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 see and avoid the transmission wire. A factor was the low altitude 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 objectCruise
Low altitude flight/maneuver - performedPilot in commandFactor
Object - wire,transmission
Visual lookout - inadequatePilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - rough/uneven

Analysis

While flying at approximately 40 to 50 feet above ground level and 100 knots, the helicopter struck a power line. The pilot stated to state troopers after the accident that following the wire strike, 'he had side to side control but did not have up and down control.' The pilot stated on his accident report that he performed 'an emergency landing in rough terrain with substantial resulting damage.' He reported that he had not seen the wire the helicopter had struck.

Factual narrative

On May 31, 1996, at approximately 1600 mountain daylight time, a Hughes 369HS, N444GJ, struck a powerline and crashed near the intersection of U.S. highway 78 and Oregon state highway 95, approximately 19 nautical miles southwest of Arock, Oregon. The helicopter was substantially damaged. The private pilot, who was the sole occupant, was not injured. The aircraft was operated under 14 CFR 91 from Winnemucca, Nevada with an intended destination of Baker City, Oregon. Visual meteorological conditions existed and no flight plan had been filed.

The pilot reported that he was flying at approximately 50 feet above ground level in order to reduce the risk of mid-air collision with military aircraft on military training routes traversing his route of flight. According to the pilot, "The strike occurred . . . on a stepped upslope following a gradual downslope where the power line and supporting pole were backgrounded against a non-contrasting hillside." He stated on his NTSB accident report that following the wire strike, he performed "an emergency landing in rough terrain with substantial resulting damage."

An Oregon State Police report indicated that the pilot told state troopers he had been flying "at about power pole height and traveling at 100 knots" and that he "did not see the last power line across in front of him." According to the report, the pilot also told state troopers that following the wire strike, "he had side to side control but did not have up and down control." The state police report's description of the accident scene noted that the power poles were approximately 40 feet tall, running east to west, and stated: "The scene indicates that the aircraft was [northbound] at an elevation of 35' to 40' in relation to the terrain...The aircraft hooked the power line pulling the line north to the point that the power line broke." The report also noted that the helicopter wreckage contained several rub marks, one of which "appeared to be an area that was in contact with the power line", as well as a section of power line wrapped around a skid.

Aircraft

Registration
N444GJ
Reported as
Hughes 369HS
Category
Helicopter
Serial number
530479S
Airframe hours
6,732
Engine
Allison 250-C20B, 325 horsepower, turbo shaft
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
George W. Jeffs
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 19, 1995 · 100 hours before
Departed
WMC · Winnemucca, NV
Destination
BKE · Baker City, OR

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
71
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
4,600 total · 300 in this make and model · 4,300 as pilot in command · 40 in the last 90 days · 20 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 5 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
70 °F, dew point 19 °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.