Mr. Jim Gavin:

I will provide some more detail around the air traffic management, ATM, function. What primarily happens is that when the particular operator submits a flight plan, it is controlled by the network manager in Eurocontrol, which is part of the single European sky concept. That flight plan is then sent back to the local ANSP, in this case, ANI at Dublin Airport, which would issue that clearance to the flight crew, who as the chief executive said, will put that into their flight management system on the aircraft.

At a tactical level, the airport operator can change the SID, depending on a change in the departure runway or for whatever tactical reason there might be to assign a different SID to the aircraft, but primarily it is the ATM function that drives the SID that is issued to the flight crew.