FAA Authority

Airworthiness Directives (ADs) are legally enforceable rules issued by the FAA in accordance with 14 CFR part 39 to correct an unsafe condition in a product. 14 CFR part 39 defines a product as an aircraft, aircraft engine, propeller, or appliance.

AD Development and Issuance

FAA Order 8040.1 defines the FAA’s authority and responsibility for the development and issuance of ADs.

Check here for information about the Airworthiness Directive Implementation Aviation Rulemaking Committee (AD ARC), chartered August 2009.