Which condition must be met for the door pin and streamer during arming of A330 doors?

Which condition must be met for the door pin and streamer during arming of A330 doors?

• A. Arming lever is in ARMED position
• B. Door pin and streamer stowed
• C. Access cover closed
• D. Purser/FL indicators on 1L FA panel are green

Answer: (B)

The key idea is the safety interlock on A330 doors: the door pin and streamer prevent arming unless the door is in a secure state. For arming to proceed, the door pin and its streamer must be stowed away. This indicates the pin has been removed from the door and secured in place, clearing the path for the arming mechanism to engage. If the pin remains in place or the streamer is extended, the arming system stays inhibited to avoid arming a door that isn’t properly secured. Other conditions listed don’t directly control the arming interlock. The arming lever reaching ARMED is the result of the pin/streamer being stowed, not the prerequisite. Access cover status or indicators on the FA panel green do not by themselves guarantee that the door is ready to arm.

The key idea is the safety interlock on A330 doors: the door pin and streamer prevent arming unless the door is in a secure state. For arming to proceed, the door pin and its streamer must be stowed away. This indicates the pin has been removed from the door and secured in place, clearing the path for the arming mechanism to engage. If the pin remains in place or the streamer is extended, the arming system stays inhibited to avoid arming a door that isn’t properly secured.

Other conditions listed don’t directly control the arming interlock. The arming lever reaching ARMED is the result of the pin/streamer being stowed, not the prerequisite. Access cover status or indicators on the FA panel green do not by themselves guarantee that the door is ready to arm.