What should cabin crew NOT do when they see a flashing red light and hear chimes?

When cabin crew observe a flashing red light accompanied by an audible chime, it signifies an urgent situation that requires immediate attention. Ignoring the signal and continuing with service is inappropriate because it can compromise passenger safety. The signaling system is designed to alert the crew to potential emergencies that may necessitate quick action or specific procedures to ensure the safety of everyone on board.

In contrast, the other actions such as following emergency procedures, waiting for further instructions from the flight deck, and communicating calmly with passengers are critical responses during such situations. These options align with safety protocols and demonstrate the importance of being vigilant and responsive to cabin alerts, thereby ensuring the safety and well-being of both the passengers and crew.