NTSB ISSUES RECOMMENDATIONS TO BETTER DETECT AND SUPPRESS AIR CARGO FIRES
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WASHINGTON - The National
Transportation Safety Board today issued three recommendations to
reduce the impact of in-flight fires aboard cargo airplanes, saying current fire
protection regulations are inadequate.
The recommendations urge the
Federal Aviation Administration to require active fire suppression systems in
all cargo containers or compartments of cargo aircraft. They also recommend
improving early detection of fires within cargo containers and pallets and urge
that cargo containers provide better fire resistance.
The NTSB has led or participated
in the investigation of three fire-related accidents involving cargo aircraft in
the past six years. One involved a UPS aircraft in Philadelphia that was
substantially damaged in 2006; another was a UPS flight that crashed in Dubai,
United Arab Emirates, in 2010; and the third was an Asiana Cargo flight that
crashed into the East China Sea off the coast of South Korea in 2011. The Dubai
and South Korea investigations are ongoing under the direction of the General
Civil Aviation Authority of the United Arab Emirates and the Aviation and
Railway Accident Investigation Board of Korea respectively.
"These fires quickly grew out of
control, leaving the crew with little time to get the aircraft on the ground,"
said NTSB Chairman Deborah A.P. Hersman.
"Detection, suppression and
containment systems can give crews more time and more options. The current
approach is not safe enough."
NTSB investigators found that the
early stages of a fire burning inside a cargo container are concealed from
detection. In later stages, when the fire grows and does become detectable, it
rapidly intensifies and burns through the container to become a substantial
threat to the aircraft and crew. In the UAE crash, the crew had just 2 ½ minutes
between the fire detection and the onset of aircraft system failures.
"I also want to commend the air
cargo industry for actively researching and implementing new fire prevention and
suppression technologies," said Hersman, who was briefed this week by UPS on its
efforts. FedEx is in the process of installing a fire-suppression system on its
long-haul fleet.
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torsdag 29. november 2012
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