What action is necessary if a second aircraft confirms a ground-based NAVAID malfunction?

If a second aircraft confirms a ground-based NAVAID malfunction, it is crucial to notify the Flight Level Manager (FLM). This action is necessary because the FLM is responsible for overseeing air traffic operations and ensuring safety in the airspace. Notifying the FLM allows the issue to be assessed and managed appropriately, which may involve implementing procedures to mitigate risks associated with the NAVAID failure, such as adjusting flight paths or providing alternative navigation guidance.

Maintaining normal operations or continuing to operate as usual could lead to hazardous situations if the NAVAID is indeed malfunctioning, as it may mislead other aircraft depending on that aid. Ceasing all flights in the area may be an excessive response, as not every malfunction requires an area-wide grounding of operations unless the situation poses a significant safety risk. Switching to GPS navigation can be a viable alternative, but this option also relies on awareness of the NAVAID's status and proper procedures in place to handle such navigational changes. Notifying the FLM encompasses all necessary safety protocols and allows for coordinated communication regarding the NAVAID's operation status.