A flight deck system for deployment onboard an aircraft, the flight deck system comprising: a cockpit display device on which an airport display (42, 50, 60) is generated; a datalink over which braking action information is received, a controller coupled to the datalink and configured to determine a current braking action of the first runway (52, 54, 62, 64) from the braking action information received over the datalink; and the controller coupled to the cockpit display device, the controller configured to produce a braking action graphic (44, 58, 68, 70, 72, 74) on the airport display indicative of the current braking action of a first runway (52, 54, 62, 64) approached for usage by the aircraft, wherein the controller is further configured to: assign the current braking action of the first runway to one of a plurality of predetermined braking action categories based, at least in part, on degradation to aircraft braking effectiveness and directional control when using the first runway; and visually code the braking action graphic, as produced on the airport display, in accordance with the predetermined braking action category to which the current braking action has been assigned, the flight deck system being characterised in that the braking action graphic (44, 58, 68, 70, 72, 74) comprises a text annunciation graphic, which additionally indicates a reporting source including a type of aircraft from which the braking action information originates. a cockpit display device on which an airport display (42, 50, 60) is generated; a datalink over which braking action information is received, a controller coupled to the datalink and configured to determine a current braking action of the first runway (52, 54, 62, 64) from the braking action information received over the datalink; and the controller coupled to the cockpit display device, the controller configured to produce a braking action graphic (44, 58, 68, 70, 72, 74) on the airport display indicative of the current braking action of a first runway (52, 54, 62, 64) approached for usage by the aircraft, wherein the controller is further configured to: assign the current braking action of the first runway to one of a plurality of predetermined braking action categories based, at least in part, on degradation to aircraft braking effectiveness and directional control when using the first runway; and visually code the braking action graphic, as produced on the airport display, in accordance with the predetermined braking action category to which the current braking action has been assigned, assign the current braking action of the first runway to one of a plurality of predetermined braking action categories based, at least in part, on degradation to aircraft braking effectiveness and directional control when using the first runway; and visually code the braking action graphic, as produced on the airport display, in accordance with the predetermined braking action category to which the current braking action has been assigned, the flight deck system being characterised in that the braking action graphic (44, 58, 68, 70, 72, 74) comprises a text annunciation graphic, which additionally indicates a reporting source including a type of aircraft from which the braking action information originates.