What should the CC do if they detect a loss of cabin pressure?

In the event of a loss of cabin pressure, preparing for an emergency descent is crucial for the safety of all onboard. When cabin pressure drops, it can lead to hypoxia, which is a lack of oxygen in the body, potentially causing confusion or unconsciousness among passengers and crew. An emergency descent allows the aircraft to rapidly descend to altitudes where breathable air is available, ensuring that everyone can regain proper oxygen levels and maintain consciousness.

While alerting passengers to remain calm is important for managing their panic and anxiety in stressful situations, it is secondary to taking immediate corrective actions. Performing a cabin check or checking flight records might provide information or context about the situation, but neither action addresses the immediate danger of altitude and low cabin pressure affecting passenger and crew safety. By prioritizing an emergency descent, the cabin crew can take essential steps to rectify the situation and safeguard everyone onboard.