How frequently is the Airport/Facility Directory updated?

The Airport/Facility Directory (AFD) is updated every 56 days to ensure that pilots have current and accurate information pertaining to airports, airways, and other relevant aeronautical data. This regular update cycle is crucial for maintaining safety and situational awareness for pilots, as changes to airport facilities, services, and other operational information can occur frequently.

Choosing the 56-day timeframe balances the need for timely updates with the logistical considerations of compiling and disseminating the information accurately. As a pilot, it's important to regularly check for these updates, as relying on outdated information can lead to safety risks during flight operations.