If the chimes become inoperative, what is the first course of action?

The first course of action when the chimes become inoperative is to notify the Flight Deck. This step is critical as it ensures that the cockpit crew is immediately aware of any potential issues affecting cabin communication and alerts. The Flight Deck relies on these chimes to receive important notifications from the cabin crew, and their malfunction could hinder coordination during crucial phases of flight, particularly in emergency situations. By alerting the Flight Deck, the cabin crew provides essential information that can enable the pilots to make informed decisions and take any necessary actions to maintain safety and operational efficiency.

It's important for the cabin crew to maintain a direct line of communication with the Flight Deck, especially when equipment malfunctions occur, as this helps ensure a higher level of situational awareness and preparedness for all crew members involved.