The present disclosure is directed to a flight deck barrier apparatus or device including a frame having a first jamb, a second jamb, and a header. A foldable barrier mechanically coupled to the second jamb. An edge beam mechanically coupled to the foldable barrier. The edge beam configured to mechanically cooperate with strikers along the first jamb and mechanically cooperate with strikers along the second jamb. The edge beam including a plurality of catches. Respective ones of the plurality of catches interlock with corresponding ones of the strikers along the first jamb when the foldable barrier is in a stowed position such that a flight deck of an aircraft is accessible. Respective ones of the plurality of catches interlock with corresponding ones of the strikers along the second jamb when the foldable barrier is in an expanded position limiting access to the flight deck barrier of the aircraft.

A device for preventing access to an area of an aircraft includes a first vertical frame post designed for attachment to a structure of the aircraft, a second vertical frame post designed for attachment to a structure of the aircraft, a barrier element displaceably connected to the first frame post and including a latching element for detachable connection of the barrier element to the second frame post, and a delay unit including a spring-loaded damping cylinder displaceable into a damping position by a locking movement in opposition to a spring force. The delay unit is designed to release the latching element after a time delay.

There is provided a system for securing a cockpit from a cabin. A lavatory door has a locking mechanism provided thereon. A latching mechanism is provided on an adjacent structure across an aisle from the lavatory. The locking mechanism is compatible with the latching mechanism to secure the lavatory door in an open position, thereby forming a secure area for entering from the cockpit.

Certain aspects of the present disclosure provide movable barrier, including: a frame having a first side and a second side parallel to the first side; a first exterior panel connected to the first side of the frame and including: a first non-planar profile; and a first plurality of perforations; a second exterior panel connected to the second side of the frame and including: a second non-planar profile; and a second plurality of perforations; a cavity defined between the first exterior panel and the second exterior panel; and a liner disposed within the cavity and configured to: deform when an air pressure differential acting on a first side of the liner exceeds a pressure differential threshold and allow increased airflow through the movable barrier.

A privacy door assembly for installation in an aircraft relative to a flight deck door of the aircraft includes a door frame having a first post and a second post, where the second post comprises a latch recess. The privacy door comprises a latch positioned on an edge of the privacy door and arranged to engage the latch recess when the privacy door is in a closed position within the door frame. An access door is positioned in the privacy door, where the access door is rotatable from a closed position to an open position in a forward direction. A first mechanical door handle system including a mechanical combination lock is positioned on an aft side of the privacy door and coupled to the latch, and a second mechanical door handle system is positioned on a forward side of the privacy door and coupled to the latch.

A privacy door assembly for installation in an aircraft relative to a flight deck door of the aircraft includes a door frame having a first post and a second post, where the second post comprises a latch recess. The privacy door comprises a latch positioned on an edge of the privacy door and arranged to engage the latch recess when the privacy door is in a closed position within the door frame. An access door is positioned in the privacy door, where the access door is rotatable from a closed position to an open position in a forward direction. A first mechanical door handle system including a mechanical combination lock is positioned on an aft side of the privacy door and coupled to the latch, and a second mechanical door handle system is positioned on a forward side of the privacy door and coupled to the latch.

Certain aspects of the present disclosure provide movable barrier, including: a frame having a first side and a second side parallel to the first side; a first exterior panel connected to the first side of the frame and including: a first non-planar profile; and a first plurality of perforations; a second exterior panel connected to the second side of the frame and including: a second non-planar profile; and a second plurality of perforations; a cavity defined between the first exterior panel and the second exterior panel; and a liner disposed within the cavity and configured to: deform when an air pressure differential acting on a first side of the liner exceeds a pressure differential threshold and allow increased airflow through the movable barrier.

Secondary barriers for aircraft are disclosed. An example secondary barrier includes a plurality of tracks to mount to a first monument in a cabin of an aircraft and a plurality of rods, where respective ones of the rods slidably engage respective ones of the tracks. The secondary barrier includes a panel coupled to respective ends of the rods. The rods to move relative to the tracks between a stowed position and a deployed position. The panel in the deployed position is to interface with a second monument in the cabin opposite the first monument. The rods are to extend between the first monument and the second monument when the secondary barrier is in the deployed position.

A privacy door assembly for installation in an aircraft relative to a flight deck door of the aircraft includes a door frame having a first post and a second post, where the second post comprises a latch recess. The privacy door assembly also includes a privacy door rotatably coupleable to the first post via a set of hinges, where the privacy door comprises a decompression latch arranged to engage the latch recess when the privacy door is in a closed position within the door frame, and where the decompression latch is configured to disengage from the latch recess in response to a decompression detected on a forward side of the privacy door.

A privacy door assembly for installation in an aircraft relative to a flight deck door of the aircraft includes a door frame having a first post and a second post, where the second post comprises a latch recess. The privacy door assembly also includes a privacy door rotatably coupleable to the first post via a set of hinges, where the privacy door comprises a decompression latch arranged to engage the latch recess when the privacy door is in a closed position within the door frame, and where the decompression latch is configured to disengage from the latch recess in response to a decompression detected on a forward side of the privacy door.