The Aviation DataBase®

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Airworthiness Directives Cross Reference Directory The AD Cross Reference Directory was designed to meet the need of finding an AD when only the AD Number is known. From the links at left; Large and Small Aircraft include Engines, Propeller and Accessories (Appliances) Updated:  Daily Content:  Lists all Airworthiness Directives and Notices of Proposed Rulemaking from 1941 to present. Indexes: AD number and Manufacturer name. Common Uses:  Find and display any AD with just the AD number: No need to know Make-Model applicability. FAA Requirements:  This System meets all FAA requirements for IAs and Certified Repair Stations to have access to Current Airworthiness Directives. Aviation DataSource, Inc. Phone: (800) 952-8844; E-Mail: AirBase@AirResearch.com  The Aviation DataBase is a registered trademark of Aviation DataSource, Inc. Copyright 1993-1999. Aviation DataSource, Inc. All Rights Reserved.