The primary fire suppressant used in commercial aircraft engine nacelles and auxiliary power units is Halon 1301. The period of fire suppression system development and its certification testing may be an arduous task requiring the discharge of substantial quantities of fire suppressant. Additionally, to demonstrate compliance with federal regulation, engine nacelle fire suppression systems are discharged in flight or at varying conditions simulating flight. Based on the Montreal Protocol and its amendments, the halon family of fire suppressants has been eliminated from production. This action is in response to the destructive capacity of halon with respect to the ozone layer within the atmosphere. This technical note describes a procedure for utilizing an ozone-friendly simulant during fire suppression system development and certification testing. It demonstrates a realistic potential to eliminate the release of Halon 1301 for purposes other than actual fire suppression.


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    Title :

    Simulating the Distribution of Halon 1301 in an Aircraft Engine Nacelle with HFC-125


    Contributors:

    Publication date :

    1999


    Size :

    34 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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