What information is contained within the ADB?

The Aircraft Document Book (ADB) is essential for tracking the operational status and maintenance requirements of an aircraft. It specifically contains the current daily turnaround sheets and outstanding Maintenance Action Forms (MAFs), which are crucial for ensuring that the aircraft is ready for flight, complies with maintenance protocols, and addresses any issues that could affect performance and safety.

Daily turnaround sheets provide a summary of maintenance actions completed, inspections performed, and any discrepancies noted during pre-flight checks. Outstanding MAFs document ongoing maintenance tasks that need to be completed before the aircraft can return to service, thereby keeping the aircraft in compliance with safety and operational standards.

While historical flight data, equipment inventories, flight schedules, and crew assignments are all important components of an aircraft's operation, they are not the primary focus of the ADB, making the information about daily turnaround sheets and maintenance actions the most relevant and critical data contained within it.