Fuel Lever, Floats Factor Large in NYC Helo Crash
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An NTSB preliminary report released Friday on the fatal
doors-off March 11 helicopter photo flight in New York officially reveals the
pilot's version of events and the fact that the right side emergency tri-floats
appear to have not been fully inflated at the time of impact. The accident
killed all five passengers after the Airbus Helicopters AS350B2 lost power
and autorotated into the East River and then rolled over on its right side to
inverted after impact. The flight was operated by Liberty Helicopters for
FlyNYON under the photo exemption of Part 91.
The pilot, Rick Vance, escaped
with minor injuries and subsequently told investigators of trying to restart
his helicopter's engine after a portion of a passenger's supplemental harness
possibly snagged the fuel shutoff lever into the off position.
A post-accident wreckage
examination by the NTSB also found that “the three floats installed on the
left landing gear skid appeared to be more inflated than the floats on the
right landing gear skid. The emergency floats' left pressurization gas
cylinder gauge indicated about zero psi, while the right pressurized gas
cylinder gauge indicated about 4,000 psi.
The NTSB wreckage investigation
discovered that “the fuel control lever was found in the off position. The
fuel shutoff lever was found in the open position. The snapwire (witness
wire) between the fuel shutoff lever and the engine control housing was
broken at its lower end where it is normally secured through a hole in the
control housing.”
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tirsdag 27. mars 2018
Helikopter - East River havariet - AIN
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