If the Mode C or transponder fails, what action is required?

When a Mode C or transponder fails, it's crucial to maintain effective communication and coordination within air traffic control operations to ensure the safety and efficiency of aircraft movements. Advising a manager and coordinating with the next controller is vital because these actions help maintain situational awareness and allow for proper handling of the affected aircraft.

Notifying a manager ensures that supervisory personnel are aware of the situation and can provide guidance or additional resources as needed. Coordinating with the next controller allows them to prepare for any changes in the handling of the aircraft that may be necessary due to the loss of transponder data. This collaboration is essential for maintaining safety in the airspace, as it helps to establish alternative procedures or restrictions for the affected aircraft.

In contrast, simply continuing operations without reporting would compromise safety, as the status of the aircraft would be unknown to other controllers. Switching to emergency protocols immediately may not be warranted for a transponder failure, unless other critical issues arise. Waiting for a system reboot could lead to unnecessary delays and the potential for increased risk, as operations should not be halted pending a reboot that may not resolve the issue promptly.