Dual Purpose Lavatory Barrier

An aircraft cabin lavatory monument comprising:

• a dual purpose aircraft cabin lavatory door movably attached to an aircraft cabin lavatory frame, said dual purpose aircraft cabin lavatory door comprising:
• a movable aircraft lavatory door first side;
• a movable aircraft lavatory door second side;
• a through opening region extending through a door thickness of the dual purpose aircraft lavatory door, said door thickness extending from the movable aircraft lavatory door first side to the movable aircraft lavatory door second side;
• a movable opaque window panel movably attached at the movable aircraft lavatory door first side, said movable opaque window panel configured to selectively permit visual access through the dual purpose aircraft cabin lavatory door;
• wherein in a closed position in a first lavatory door mode, said dual purpose aircraft cabin lavatory door is configured to completely enclose an aircraft cabin lavatory monument footprint;
• and
• wherein in a closed position in a second lavatory door mode, said dual purpose aircraft cabin lavatory door is configured to engage an aircraft cabin second monument to form an aircraft cabin barrier, said aircraft cabin barrier configured to control movement of passengers along an aisle within an aircraft cabin area.

A method of controlling movement of passengers along an aisle within an aircraft cabin area, the method comprising:

• prior to opening a flight deck door, moving a barrier to a closed position with a flight deck being on a first side of the barrier and a passenger section of a cabin area being on a second side of the barrier, the barrier comprising, said barrier a lock, the barrier further comprising;
• an aircraft cabin lavatory monument, said aircraft cabin lavatory monument comprising an aircraft cabin lavatory component, said aircraft cabin lavatory component comprising at least one of a movable aircraft lavatory door and an aircraft lavatory wall;
• an aircraft cabin second monument, said aircraft cabin second monument positioned a selected distance from and across an aircraft cabin aisle from the aircraft cabin lavatory monument, said aircraft cabin second monument comprising a second monument component, said second monument component comprising at least one of an aircraft cabin second monument wall and a movable aircraft cabin second monument panel, said second monument component configured to engage the aircraft cabin lavatory component;
• wherein the aircraft cabin lavatory component in an engaged state with the second monument component forms the barrier;
• locking the barrier in the closed position;
• after locking the barrier, opening the flight deck door and providing access to flight personnel to a front section of the cabin area, said front section of the cabin area located at the first side of the barrier;
• and
• after providing access to the front section of the cabin area to the flight personnel, reclosing the flight deck door.