A privacy door assembly for installation in an aircraft , which aircraft has a flight deck separated from a cabin by a flight deck door , the privacy door assembly being installable between the flight deck door and the cabin , the privacy door assembly comprising: - a door frame comprising a first post and a second post , wherein the second post comprises a latch recess ; - a privacy door rotatably coupleable to the first post via a set of hinges , wherein the privacy door comprises - a decompression latch arranged to engage the latch recess when the privacy door is in the closed position within the door frame , and wherein, - 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, - wherein the door frame comprises a connector for coupling the door frame to an adjacent structure of the aircraft , wherein the connector , when coupled to the adjacent structure of the aircraft , provides at least one degree of freedom of movement for the door frame with respect to the adjacent structure, - wherein the privacy door comprises a slam latch positioned to engage a slot in the first post of the door frame when the privacy door is in the open position and when the slam latch is in a first position , wherein the slam latch is coupled to a lever positioned on a forward side of the privacy door , and wherein the lever is operable to move the slam latch away from the first post to a second position so as to disengage the slam latch from the slot , - wherein the privacy door further comprises a slam latch spring positioned to bias the slam latch toward the first post , wherein the first post comprises a cylindrical striker , and wherein the cylindrical striker comprises the slot . - a door frame comprising a first post and a second post , wherein the second post comprises a latch recess ; - a privacy door rotatably coupleable to the first post via a set of hinges , wherein the privacy door comprises - a decompression latch arranged to engage the latch recess when the privacy door is in the closed position within the door frame , and wherein, - 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, - wherein the door frame comprises a connector for coupling the door frame to an adjacent structure of the aircraft , wherein the connector , when coupled to the adjacent structure of the aircraft , provides at least one degree of freedom of movement for the door frame with respect to the adjacent structure, - wherein the privacy door comprises a slam latch positioned to engage a slot in the first post of the door frame when the privacy door is in the open position and when the slam latch is in a first position , wherein the slam latch is coupled to a lever positioned on a forward side of the privacy door , and wherein the lever is operable to move the slam latch away from the first post to a second position so as to disengage the slam latch from the slot , - wherein the privacy door further comprises a slam latch spring positioned to bias the slam latch toward the first post , wherein the first post comprises a cylindrical striker , and wherein the cylindrical striker comprises the slot . <EOS>