What can be used to manually open an oxygen compartment?

What can be used to manually open an oxygen compartment?

• A. A slender/stick-like object in the hole in PSU
• B. A key
• C. A coin
• D. A screwdriver

Answer: (A)

Manual opening of an oxygen compartment uses a built‑in backup release: the PSU door has a small hole that accepts a slender tool to disengage the latch and pop the door, exposing the oxygen masks. This design assumes you’ll use a stick‑like object stored with the cabin equipment, not a key, coin, or screwdriver. A coin or screwdriver isn’t the intended tool and could damage the mechanism or fail to operate it. The takeaway is that the hole is specifically for a slim tool to manually release the door in an emergency.

Manual opening of an oxygen compartment uses a built‑in backup release: the PSU door has a small hole that accepts a slender tool to disengage the latch and pop the door, exposing the oxygen masks. This design assumes you’ll use a stick‑like object stored with the cabin equipment, not a key, coin, or screwdriver. A coin or screwdriver isn’t the intended tool and could damage the mechanism or fail to operate it. The takeaway is that the hole is specifically for a slim tool to manually release the door in an emergency.