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 FAA's authority and responsibility for the development and issuance of ADs.

• Responsibilities (FAA, Type Certificate owner, aircraft owner/operator)
• Applicability and Compliance
• Content & Format Guidelines
• Incorporation by Reference
• Issuance and Publication
• Types of Airworthiness Directives
• Alternative Method of Compliance

Airworthiness Directive Implementation Aviation Rulemaking Committee (AD ARC), chartered August 2009.