An Airworthiness Directive requires that a propeller be altered.Certificated mechanics could

发布于 2021-02-17 16:39:54
【单选题】
A perform and approve the work for return to service if it is a minor alteration.
B not perform the work because it is an alteration.
C not perform the work because they are not allowed to perform and approve for return to service, repairs or alterations to propellers.

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