If the data block indicates what the aircraft is doing, is verbal coordination required?

• A. Verbal coordination is always required
• B. Verbal coordination is not required
• C. You must reissue a new clearance
• D. You must notify supervisor

Answer: (B)

When the data block clearly shows exactly what the aircraft is doing, the data block serves as the authoritative source of record for that action. Verbal coordination is intended to handle changes or actions that aren’t reflected in the automated data, or that require explicit human confirmation. If the data block already captures the current activity and is up to date, there’s no need to add spoken clearance or instructions—the information is effectively conveyed through the data system and reduces potential miscommunication. Verbal coordination would be needed only if the data block is incomplete, ambiguous, or you need to issue a change not represented in the data, or if procedure requires voice confirmation. In normal operations, relying on the data block to indicate the aircraft’s actions is preferred over verbal coordination.