Which action is not required before opening an aircraft door?

Conducting a cabin crew meeting is not required before opening an aircraft door. When preparing to open an aircraft door, the crew must ensure the immediate safety of passengers and assess the situation outside the aircraft, particularly in the event of an emergency. This includes verifying that it is safe to open the doors and that all emergency protocols are clearly understood and in place.

In contrast, assessing the situation helps crew members determine if the environment outside the aircraft is safe for passengers and crew members. Verifying passenger safety involves ensuring that all passengers are seated and secured, particularly when doors are about to be opened, while checking for emergency protocols ensures that the crew is prepared for any potential hazards or emergencies. These actions are critical in maintaining safety and efficient operations, which is why they are mandatory prior to opening the aircraft door.