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21-28 - Airworthiness Certification of U.S.-Produced Aircraft and Engine Kits Assembled Outside the United States

Date Issued
June 20, 1990
Responsible Office
AIR-220,  Aircraft Certification Service - Production & Airworthiness Certification Division
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.