A door locking system for a door module that separates compartments (102a, 102b) of an aircraft and comprises a door panel and a door frame, comprising: a locking element having at least a first and a second state, wherein the locking element is adapted to maintain the door panel in a closed position in the first state, and wherein the locking element is adapted to release the door panel from the closed position in the second state; a first mechanism that enables a first movement of the door panel from the closed position to an opened position and a second movement of the door panel from the opened to the closed position, comprising a first locking element release actuator that is coupled to the locking element and performs a first transition of the locking element from the first state to the second state; and a second mechanism that enables a third movement of the door panel from the closed to the opened position, wherein the second mechanism is spatially segregated from the first mechanism and operates independently of the first mechanism, comprising a pressure sensor configured to monitor a difference in pressure between the compartments (102a, 102b) of the aircraft, characterised in that the second mechanism further comprises a second locking element release actuator that is coupled to the locking element and performs a second transition of the locking element from the first state to the second state, and a controller that is coupled to the pressure sensor and to the second locking element release actuator and that directs the second locking element release actuator to perform the second transition of the locking element from the first state to the second state when the difference in pressure between the compartments (102a, 102b) exceeds a predetermined threshold. a locking element having at least a first and a second state, wherein the locking element is adapted to maintain the door panel in a closed position in the first state, and wherein the locking element is adapted to release the door panel from the closed position in the second state; a first mechanism that enables a first movement of the door panel from the closed position to an opened position and a second movement of the door panel from the opened to the closed position, comprising a first locking element release actuator that is coupled to the locking element and performs a first transition of the locking element from the first state to the second state; and a second mechanism that enables a third movement of the door panel from the closed to the opened position, wherein the second mechanism is spatially segregated from the first mechanism and operates independently of the first mechanism, comprising a pressure sensor configured to monitor a difference in pressure between the compartments (102a, 102b) of the aircraft, characterised in that the second mechanism further comprises a second locking element release actuator that is coupled to the locking element and performs a second transition of the locking element from the first state to the second state, and a controller that is coupled to the pressure sensor and to the second locking element release actuator and that directs the second locking element release actuator to perform the second transition of the locking element from the first state to the second state when the difference in pressure between the compartments (102a, 102b) exceeds a predetermined threshold.