When should the flight attendant say "cabin secure for pushback" to the flight director?

The appropriate moment for a flight attendant to communicate "cabin secure for pushback" to the flight director is when the flight deck door is closed. This communication typically signifies that the cabin is ready for the next phase of flight operations. At this point, the flight attendant has confirmed that all safety protocols are in place and that the cabin environment is stable for pushback from the gate.

By waiting for the flight deck door to be closed, the flight attendant ensures that the cockpit is secure and that the pilots are ready to focus on flight operations. This step helps to facilitate a smooth transition into the pushback phase, signaling to everyone involved that the cabin is organized and prepared.

While passengers being seated, cabin checks being performed, and the aircraft starting its taxiing are all important components of flight safety, they do not specifically mark the moment of readiness for pushback as clearly as the closure of the flight deck door does. Thus, announcing when the door is closed is a crucial step that aligns with safety protocols and operational readiness.