If oxygen is required during incapacitation, what is the recommended sequence of oxygen sources?

If oxygen is required during incapacitation, what is the recommended sequence of oxygen sources?

• A. Flight crew oxygen first, then transfer them to portable oxygen from the cabin
• B. Portable cabin oxygen first
• C. No oxygen
• D. Then portable cabin oxygen

Answer: (A)

The key idea is to get oxygen to the flight crew first. In an incapacitation, the person controlling the aircraft needs a reliable, immediate oxygen source, and the flight crew oxygen system is designed for quick delivery in the cockpit. Using this source first helps restore or maintain the pilot’s consciousness and ability to manage the aircraft right away. Once the cockpit oxygen is established, you can switch to portable cabin oxygen to support others or to extend oxygen supply as needed. So, the best sequence is flight crew oxygen first, then transfer to portable cabin oxygen.

The key idea is to get oxygen to the flight crew first. In an incapacitation, the person controlling the aircraft needs a reliable, immediate oxygen source, and the flight crew oxygen system is designed for quick delivery in the cockpit. Using this source first helps restore or maintain the pilot’s consciousness and ability to manage the aircraft right away. Once the cockpit oxygen is established, you can switch to portable cabin oxygen to support others or to extend oxygen supply as needed. So, the best sequence is flight crew oxygen first, then transfer to portable cabin oxygen.