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Advisory Circulars (ACs)

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Advisory Circulars (ACs) search results
Number Title Status Office Date
21-28 Airworthiness Certification of U.S.-Produced Aircraft and Engine Kits Assembled Outside the United States

Provides information and guidance concerning airworthiness certification requirements for aircraft or aircraft engines, assembled from kits by aircraft or aircraft engine manufacturers located in other countries.

Active AIR-220 1990-06-20