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Methods, Techniques, and Practices

The step-by-step, “how-to” instructions for accomplishing maintenance, preventive maintenance, and alterations. These instructions are considered “acceptable to the Administrator” if the certificate holder shows that the instructions will return the aircraft, engine, or other article to its original or properly altered condition. (Reference sections 21.50(b), and 43.13(a).)


AC 120-77

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