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the main tanks held suffi cient fuel for several
hours of fl ight.”
OTHER GENERAL AVIATION
5 2 FLIGHT SAFETY FOUNDATION • FLIGHT SAFETY DIGEST • JUNE 2005
A C C I D E N T S / I N C I D E N T S
ROTORCRAFT
Helicopter Strikes Terrain in
Snowstorm
Bell 206B. Destroyed. One serious injury,
one minor injury.
The helicopter was being fl own under a visual
fl ight rules (VFR) fl ight plan on a multi-leg
ferry fl ight in Canada. About one hour after departure,
the helicopter encountered snow showers
and reduced visibility, and the chief pilot took the
controls.
“The visibility continued to worsen until the pilots
encountered whiteout conditions, and they lost all
visual reference with the terrain,” the accident report
said. “Shortly thereafter, the helicopter struck
the snow-covered surface of a fi eld.”
The report said that the accident’s causes and
contributing factors were that “the chief pilot’s
decision to continue a visual fl ight into instrument
meteorological conditions resulted in his inability
to maintain control of the helicopter … ; the chief
pilot’s decision to continue into deteriorating
weather conditions was infl uenced by a mistaken
expectation that the weather … was better than
the reported conditions and the pressure to reach
[the destination] on the day of the occurrence;
[and] the pilots disregarded the safe limits with
regard to VFR fl ight.”
The report also said that the pilots’ use of a global
positioning system receiver “assisted them in navigating
into weather conditions in which they could
not safely fl y the helicopter.”
Bird Strikes Helicopter
Involved in Search Flight
Sikorsky S-61N. Minor damage.
No injuries.
Daytime visual meteorological conditions prevailed
for the search of the North Atlantic
Ocean off the coast of Ireland for “a missing
trawler-man,” the accident report said. Several
trawlers also were being used in the search operation,
and the trawlers attracted many sea birds.
After searching, as the crew fl ew the helicopter
to a landing site in Ireland, they observed a large
black and white bird.
The report said, “The pilot took evasive rolling
action to his right. However, the bird impacted
on the clear Perspex panel and broke it, just above
the copilot position.”
The captain said that because he had rolled
the helicopter to the right, the impact probably
was less serious than it otherwise might have
been.
Tie-down Strap Not
Removed Before Takeoff
Bell 206L-4 LongRanger IV. Destroyed.
One fatality.
A loss of control occurred when the pilot began
to fl y the helicopter from an offshore
oil-pumping platform in the Gulf of Mexico to
make room for another helicopter that was being
landed for refueling in daytime visual meteorological
conditions.
The other pilot said that the accident helicopter
pitched nose-up, pivoted right and began to drift
left across the 40-foot by 60-foot (12-meter by
18-meter) helideck. The helicopter then struck a
safety fence, fell 161 feet (49 meters) to the water
and sank.
The other pilot circled the platform for about
30 minutes to search for survivors but observed
only small pieces of debris from the accident
helicopter, the tail boom, a partially infl ated
helicopter fl oat and one life vest. The wreckage
and the pilot’s body later were recovered from
the water.
The accident helicopter’s rear tie-down strap and
right front tie-down strap were found in a storage
compartment on the helideck. The left front
tie-down strap was found attached to its tiedown
fi tting on the helideck and extended randomly
on the helideck and the damaged safety
fence. ■
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