If a second aircraft reports a NAVAID is functioning normally, what should you instruct the first reporting aircraft to do?

When a second aircraft reports that a NAVAID (Navigational Aids) is functioning normally, instructing the first reporting aircraft to continue using the NAVAID is the most appropriate action. This is because the first aircraft may have experienced a temporary malfunction or issue that could have resolved itself, or it might have been a misinterpretation of the NAVAID's functioning. The confirmation from another aircraft provides additional assurance that the NAVAID is operational, allowing the first aircraft to safely rely on it for navigation.

Encouraging the first aircraft to continue using the NAVAID helps maintain situational awareness and ensures that they are receiving accurate navigational support. This approach supports operational efficiency by reducing the need for unnecessary frequency changes or alternate navigational aids, which might complicate the flight and create confusion. The response helps instill confidence in the pilots regarding the use of the NAVAID, which is an essential element of safe flying practices.