During pushback, if a passenger is in the rear lavatory, who needs to be notified that the cabin is unsecure?

When a passenger is found in the rear lavatory during pushback, the flight deck must be notified that the cabin is unsecure. This is crucial for maintaining safety protocols during taxi and departure. The flight crew needs to be aware of any situation that might compromise the integrity of the cabin and the safety of the aircraft.

The flight deck is responsible for making decisions that ensure the aircraft operates safely, and they need to be informed of the situation so they can evaluate the plan for pushback and take any necessary precautions. This allows the flight crew to act promptly and adhere to standard operating procedures, which prioritize the safety and security of all on board.

Communication with ground control, other flight attendants, or the cabin manager, while important in various contexts, is not the immediate priority when it comes to cabin security during pushback. The flight deck holds the ultimate responsibility for situational awareness in that critical phase of flight.