AB.  COUNTERFEIT CERTIFICATION - A document that is a false certification with intent to deceive user.
AC.  COUNTERFEIT PART - A part that has not been approved/certified. It does not meet the tolerances, limitations, and/or specifications delineated in its design data and/or which is not made from materials specified for that design. It is something different than what the original design calls for and it is made, and/or sold, or provided, with the intent to deceive the user.
AD.  DIRECT SHIP AUTHORITY - A statement from a certificate holder and/or approved manufacturer to a supplier authorizing direct shipment to a buyer and date of the authorization. Domestic and foreign manufacturers (Production Certificate Holders) should authorize their suppliers of parts other than standard or commercial parts, who do not hold FAA certification for manufacture, in writing to provide any direct shipping authority. Establish procedures, which ensure that the shipped parts will conform to the type design and are in an airworthy condition. A copy of the letter to the supplier from the certificate holder authorizing direct shipment and date of authorization should be included with the shipping ticket, invoice, or other transfer document containing a declaration that the individual part was produced under the terms of a FAA production approval. The shipping document should also identify the product on which the part is eligible for installation, and the Production Certificate holder’s production certificate number.
AE.  DOT (United States Department of Transportation) - Established by an act of Congress on October 15, 1966, the department’s first official day of operation was April 1, 1967. The mission of the DOT is to serve the United States by ensuring a fast, safe, efficient, accessible and convenient transportation system that meets our vital national interests and enhances the quality of life of the American people, today and into the future.
AF.  DROPSHIP - The process of purchasing an item from a vendor and delivering/shipping it directly to the buyer’s customer or sub-contract facility, without the physical part having to stop at the buyer’s facility.
AG.  E.A.S.A. - European Aviation Safety Agency
AH.  ESD (Electrostatic Discharge) - The transfer of an electrostatic charge between bodies at different electrostatic potentials (voltages), caused by direct contract or induced by an electrostatic field.

AI.  EXPENDABLE PARTS - A part for which no authorized repair procedure exists or for which the cost of repair would not be economical.
AJ.  FAA (Federal Aviation Administration) - The Civil Aviation Authority of the United States of America.
AK.  FAA-APPROVED DESIGN DATA - All drawings and specifications necessary to show the configuration of the part and all information on dimensions, tolerances, material, processes, and procedures necessary to define all characteristics of an airworthy product and every part therein.
　
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