This report examines the loss of main rotor control accidents involving Robinson Helicopter Company R22 helicopters. When similar accidents occurred involving the Robinson R44 helicopters, the scope of the report expanded to include those accidents. The safety issues discussed in the report include the need for appropriate measures to reduce the probability of loss of main rotor control accidents; the need for continued research to study flight control systems and main rotor blade dynamics in lightweight, low rotor interia helicopters; the need for operational requirements to be addressed during future certification of lightweight, low rotor inertia helicopters; and the need for the Federal Aviation Administration (FAA) to review and revise, as necessary, its procedures to ensure that internal recommendations, particularly those addressed in special certification reviews, are appropriately resolved and brought to closure.


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    Title :

    National Transportation Safety Board Special Investigation Report: Robinson Helicopter Company R22 Loss of Main Rotor Control Accidents


    Publication date :

    1996


    Size :

    116 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English