Maintenance man-hours and downtime charged against secondary structures of aircraft have been excessive. It is assumed that this has been due to deficiencies in the design and test procedures for these components. This report investigates these problems and makes recommendations to alleviate them. Standards and specifications were reviewed for application to secondary structures on rotary-wing aircraft. A list was made up for detailed review. This study indicates that design and test criteria for secondary structure components subject to handling use and abuse must be expanded to include the functional loads applied in handling. The usual flight and ground load criteria are inadequate for designing and testing adequate secondary structures of the hinged-opening variety. (Modified author abstract)


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    Title :

    Helicopter Secondary Structures Reliability and Maintainability Investigation


    Contributors:

    Publication date :

    1974


    Size :

    170 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English