A method for providing alerts or indications to an aircrew of an aircraft that is in-flight and approaching a destination airport, the method comprising the steps of: receiving an aircrew runway selection from the aircrew of the aircraft, wherein the aircrew runway selection is one of two or more runways at the destination airport, and wherein the runway selection is received into a flight management system, FMS, of the aircraft via flight crew entry of data into a primary flight display or a multi-function display of the aircraft; automatically generating a probable runway selection by the aircraft, wherein the probable runway selection is one of the two or more runways at the destination airport, and wherein the probable runway selection is automatically generated using an algorithm that utilizes one or more of an aircraft position, altitude, descent/ascent rate, glide path angle, ground speed, or track; determining a position of the in-flight aircraft with reference to a threshold point that comprises both a threshold altitude above and a threshold lateral distance from the threshold of the aircrew-entered runway at the destination airport, characterised in that: if the determined position of the in-flight aircraft with reference to the threshold point is both of above the threshold altitude and further from the threshold than the threshold lateral distance, the method comprises generating alerts and indications to the aircrew based solely on the received runway selection into the FMS from the aircrew of the aircraft and not on the automatically-generated probable runway selection from the aircraft; if the determined positon of the in-flight aircraft is either below the threshold altitude or closer to the threshold than the threshold lateral distance, the method comprises generating alerts and indications to the aircrew based solely on the automatically-generated probable runway selection from the aircraft and not on the received runway selection into the FMS from the aircrew of the aircraft. receiving an aircrew runway selection from the aircrew of the aircraft, wherein the aircrew runway selection is one of two or more runways at the destination airport, and wherein the runway selection is received into a flight management system, FMS, of the aircraft via flight crew entry of data into a primary flight display or a multi-function display of the aircraft; automatically generating a probable runway selection by the aircraft, wherein the probable runway selection is one of the two or more runways at the destination airport, and wherein the probable runway selection is automatically generated using an algorithm that utilizes one or more of an aircraft position, altitude, descent/ascent rate, glide path angle, ground speed, or track; determining a position of the in-flight aircraft with reference to a threshold point that comprises both a threshold altitude above and a threshold lateral distance from the threshold of the aircrew-entered runway at the destination airport, characterised in that: if the determined position of the in-flight aircraft with reference to the threshold point is both of above the threshold altitude and further from the threshold than the threshold lateral distance, the method comprises generating alerts and indications to the aircrew based solely on the received runway selection into the FMS from the aircrew of the aircraft and not on the automatically-generated probable runway selection from the aircraft; if the determined positon of the in-flight aircraft is either below the threshold altitude or closer to the threshold than the threshold lateral distance, the method comprises generating alerts and indications to the aircrew based solely on the automatically-generated probable runway selection from the aircraft and not on the received runway selection into the FMS from the aircrew of the aircraft. if the determined position of the in-flight aircraft with reference to the threshold point is both of above the threshold altitude and further from the threshold than the threshold lateral distance, the method comprises generating alerts and indications to the aircrew based solely on the received runway selection into the FMS from the aircrew of the aircraft and not on the automatically-generated probable runway selection from the aircraft; if the determined positon of the in-flight aircraft is either below the threshold altitude or closer to the threshold than the threshold lateral distance, the method comprises generating alerts and indications to the aircrew based solely on the automatically-generated probable runway selection from the aircraft and not on the received runway selection into the FMS from the aircrew of the aircraft.