The Federal Aviation Administration (FAA) issues Parts Manufacturer Approvals (PMA) for aircraft replacement parts that are not manufactured by the original equipment manufacturer (OEM). To obtain a PMA, the replacement part manufacturer must meet the FAA requirements for safety regulations and standards, and it must meet the OEM's specifications and standards for the part it is replacing. Replacement battery cells within aircraft batteries are issued PMAs from the FAA under Order 8110.42C; however, some OEMs claim that intermixing PMA with OEM cells within an aircraft battery can have drastic effects on battery performance, thus causing a potential safety of flight issue. Tests were performed at the FAA William J. Hughes Technical Center by the Fire Safety Team of the Airport and Aircraft Research and Development Group to determine if intermixing cells within an aircraft nickel-cadmium battery has an effect on battery performance or safety.


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    Title :

    Intermixing Cells in Aircraft Nickel-Cadmium Battery


    Contributors:

    Publication date :

    2011


    Size :

    19 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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