It starts a slight pressure once the doors are closed keeping in mind the need for 'evacuation'.....The Airbus 320 cabin starts to climb above 5040'agl,allowes the a/c return to field..
The call's doors to manual apply after landing to avoid the Auto system from opening the doors under press,and inflating the chutes...'to Auto' apply once the acraft taxiis-in case of the evacuation.....
