How often are Airworthiness Directives notes published?

Airworthiness Directives (ADs) are critical regulatory notices issued by the Federal Aviation Administration (FAA) to inform aircraft owners and operators regarding safety deficiencies and the necessary actions to address them. These directives ensure that aircraft are maintained according to updated safety standards, and the timely dissemination of this information is essential for aviation safety.

The publication frequency of Airworthiness Directives is every two weeks. This bi-weekly schedule allows for the timely release of safety recommendations and requirements based on the latest findings or concerns identified in the aviation industry. By publishing these notices regularly, the FAA can effectively communicate urgent safety measures to ensure that all stakeholders, including pilots, maintenance personnel, and operators, remain informed of new information that could affect the airworthiness of their aircraft.

A weekly or monthly publication could lead to delays in disseminating crucial safety information, while an annual publication would be insufficient to address urgent safety issues in a timely manner. Therefore, the bi-weekly schedule strikes a good balance, ensuring that information flows quickly and responsively to the aviation community.