On LR aircraft, where is the Portable Oxygen Bottle located?

• A. FWD equipment closet and last overhead bin
• B. Aisle-side compartment and last overhead bin
• C. In the lavatory cabinet
• D. Under a seat near the middle

Answer: (B)

The key idea is accessibility for the crew during an emergency. On LR aircraft, one portable oxygen bottle is kept in an aisle-side compartment and another is stored in the last overhead bin. This setup puts a bottle within easy reach from the cabin, especially near the flight attendant jumpseats, so masks can be grabbed quickly if depressurization or a medical event occurs. The last overhead bin location keeps the second bottle out of the main aisle yet still readily accessible, providing a second option without crowding the passageway.

Choosing the lavatory cabinet isn’t ideal because access is restricted and could delay access during an urgent situation, and placing a bottle under a seat near the middle would hinder movement and be harder to reach.