What action will AMIS controllers take on an unknown radar track when NORAD advises that such track exists within the ADS?

When AMIS controllers are notified by NORAD about an unknown radar track within the Air Defense Sector (ADS), the first and most appropriate action is to check the data available to them. This ensures that controllers can verify and confirm all known aircraft in the sector before taking further actions. By accurately assessing the situation, they can provide NORAD with critical information about friendly aircraft, potential threats, and the overall airspace status.

Understanding the surrounding situation is vital for effective decision-making. It allows controllers to distinguish between civilian and possible hostile aircraft, which is crucial for maintaining safety and security in the airspace. This systematic approach helps in coordinating an informed response to the unknown track rather than immediately escalating to more drastic measures without sufficient knowledge of the current air traffic environment. Hence, the action of verifying available information and advising NORAD aligns with standard operating procedures for managing unidentified tracks and ensuring an appropriate response.