What does the RESET button on the audio control panel extinguish?

The RESET button on the audio control panel is designed to extinguish the CALL, MECH, and ATT lights. This is crucial during flight operations to ensure that the flight crew can effectively manage and monitor communications.

When the RESET button is pressed, it serves to indicate that any alert or notification associated with these particular lights has been acknowledged or addressed. The CALL light typically illuminates when a communication request (such as from the cabin crew) has been made. The MECH light indicates a mechanical issue related to the audio system, and the ATT light signifies an attention requirement for a system that needs the crew’s focus.

By extinguishing these lights, the crew is able to maintain a clear understanding of their communication status, facilitating smoother operations without distractions from unresolved alerts. This plays an important role in enhancing both situational awareness and communication effectiveness in the cockpit.