Federal Aviation Administration

Airworthiness Directives Process

Updated: 11:38 am ET July 9, 2008

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.

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

11:38 am ET July 9, 2008