In the context of inflight services, what dependency does the arm door procedure have?

The arm door procedure is primarily dependent on the timing of the flight's departure because it is a critical safety measure that must be coordinated with the aircraft’s operational schedule. The procedure involves preparing the doors of the aircraft for departure, ensuring that they are secure and ready for takeoff. The timing relates directly to when the aircraft is set to leave the gate, as the doors must be armed in relation to the boarding process and final safety checks.

Implementing this procedure at the right moment is essential to ensure passenger safety and to comply with safety regulations governing the aircraft's readiness for departure. Therefore, the arm door procedure is closely tied to the flight's departure timing.