What is the typical immediate action for passengers during cabin depressurization?

• A. Instruct passengers to don their oxygen masks and secure them
• B. Evacuate passengers immediately
• C. Return to the gate
• D. Switch to alternate cabin lighting

Answer: (A)

During cabin depressurization, the immediate danger is the lack of breathable oxygen. Oxygen masks automatically deploy, and the priority is to ensure everyone gets oxygen as quickly as possible. Instructing passengers to put on their oxygen masks and secure them guarantees an uninterrupted supply to themselves, which is essential before attempting to assist others. The mask should be placed over the nose and mouth, snugly secured with the elastic band, and adjusted so breathing feels normal. Once you have your own mask on and oxygen is flowing, you can help those who need it most, such as children or passengers needing extra assistance. Actions like evacuating immediately, returning to the gate, or changing cabin lighting don’t address the urgent need for oxygen and could push passengers into unsafe conditions during the rapid decompression.