Which organization must be notified of known or reported malfunctions of a NAVAID?

The correct choice highlights the specific responsibilities of the Technical Operations (Tech Ops) group within the aviation framework. Tech Ops is primarily tasked with maintaining and ensuring the operational integrity of navigational aids (NAVAIDs). When there are known or reported malfunctions of these critical aviation tools, it is essential for Tech Ops to be notified so that they can assess the situation, rectify any issues, and ensure that the navigational aids function properly for safe air traffic operations.

While organizations like the FAA oversee broader regulations and standards in aviation, and the Aeronautical Information Service (AIS) manages the distribution of vital aeronautical information, these bodies do not directly handle the technical operations and maintenance aspects of NAVAIDs. Air Traffic Control (ATC) focuses on the safe and efficient movement of aircraft in the airspace and on the runways rather than the operational health of navigational aids. Therefore, Tech Ops is best suited to respond to and manage reported malfunctions of NAVAIDs.