During depressurisation, PSU oxygen is not deployed and indications are observed; what should cabin crew do?

During depressurisation, PSU oxygen is not deployed and indications are observed; what should cabin crew do?

• A. Don oxygen masks and alert passengers.
• B. Notify flight deck immediately.
• C. Return to their seat.
• D. Initiate emergency descent.

Answer: (C)

The main idea is that safety of the crew comes first in a depressurization. If the PSU oxygen isn’t deployed, the immediate priority for cabin crew is to secure themselves by returning to their seat and putting on their own oxygen mask, then buckle up. This protects the crew from hypoxia and ensures they’re stabilized and ready to assist when the situation evolves. Once safely seated and oxygen-supplied, they can communicate with the flight deck and help passengers as appropriate. The flight deck controls the descent, so initiating a descent is not a cabin crew action. While alerting passengers and guiding them to use oxygen is important, doing so effectively requires the crew to be secured and breathing from their own oxygen supply first.

The main idea is that safety of the crew comes first in a depressurization. If the PSU oxygen isn’t deployed, the immediate priority for cabin crew is to secure themselves by returning to their seat and putting on their own oxygen mask, then buckle up. This protects the crew from hypoxia and ensures they’re stabilized and ready to assist when the situation evolves. Once safely seated and oxygen-supplied, they can communicate with the flight deck and help passengers as appropriate. The flight deck controls the descent, so initiating a descent is not a cabin crew action. While alerting passengers and guiding them to use oxygen is important, doing so effectively requires the crew to be secured and breathing from their own oxygen supply first.