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Service Experience with Liquid Nitrogen Fuel Tank Inerting System in FAA DC-9 Aircraft, N119.
FEDERAL AVIATION ADMINISTRATION WASHINGTON D C FLIGHT STANDARDS SERVICE
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The purpose of this project is to determine the nitrogen consumption, system reliability, and maintenance burden and costs which are associated with the installation and operation of a liquid nitrogen fuel tank inerting system installed in the FAA DC-9 airplane, N119. The data can be extrapolated to a typical airline type of operation of a DC-9 and other jet transport aircraft. The FAA installed a liquid nitrogen inerting system in the DC-9 to demonstrate the availability of a practical system to provide improved protection against fuel system fire and explosion. The effectiveness of this system in controlling the oxygen concentration at below 9, under all conditions for the prevention or suppression of fire and explosion within the fuel tanks and venting systems in the event of an accidental occurrence of an ignition source, was demonstrated during a flight test program. Modified author abstract
APPROVED FOR PUBLIC RELEASE