What is the appropriate action if WSN/ND goes down?

When the Weather Surveillance Radar (WSN) or Network Data (ND) goes down, the first step in managing the situation involves checking backup systems. This action is crucial because backup systems are in place to ensure continuity of operations and to mitigate risks associated with system outages. By verifying the status of these systems, air traffic controllers can determine whether they can rely on alternative resources to maintain operations safely.

In air traffic control, having reliable and immediate access to radar data is vital for ensuring safe aircraft separation and navigation. Therefore, ensuring that backup systems are operational allows controllers to continue providing effective air traffic services, even during a primary system failure. Establishing the functionality of backup systems enables a quicker response and minimizes disruptions.

Other actions, such as notifying the operations officer, entering manual procedures, or waiting for system recovery, may follow the initial check of backup systems. However, assessing the backup systems right away is an essential first step to ensure that air traffic control can continue functioning effectively.