The authority controlled air traffic for the three major international airports in Ireland. •
Shannon – The majority of air traffic controllers in Ireland work in the
Shannon ATC centre. It is from here that 80% of all flights transiting between
Europe and
North America are controlled. These are flights that don't touch down on Irish soil. Shannon controls these flights as far as
15 degrees west, approximately 385 kilometres off the Irish coast. From here they are handed over to
Shanwick for their journey across the
Atlantic Ocean. •
Dublin – There are approximately 79 air traffic controllers in Dublin. The vertical limit of Dublin's airspace is Flight Level 245 (24,500 ft). Dublin Airport is by far the busiest airport in Ireland. Estimates for 2017 show 29.6 million passengers going through the airport. •
Cork – Cork ATC provides an approach and an aerodrome service to traffic arriving and departing Cork. The Cork Control Zone has a radius of and a vertical limit of . The smaller airports such as
Ireland West Airport provide their own approach and aerodrome service. In recent years, the authority has invested more than €115 million in air traffic control systems. This includes a new air traffic control centre (ATCC) at
Ballycasey Cross, Shannon. Built on a Greenfield site, this ATCC became fully operational in February 2004 and replaces the ATC Centre at
Shannon Airport which had been in operation since 1966. The new ATC centre houses the Shannon element of the new Air Traffic Management (ATM) system introduced in Shannon and Dublin in 2004. The authority was also responsible for providing communications in
Shanwick airspace, with
NATS providing the ATC from
Prestwick. Shannon Aeradio, as it is known, is based in Ballygirreen, Newmarket-on-Fergus, County Clare. In October 2009, it was announced that the regulatory aspects of the IAA's remit would be transferred to the Dublin Transport Authority, later renamed the
National Transport Authority. However, this plan never went ahead. In July 2015, the
Irish government revealed plans to purchase a long-range
radar system at a cost of €10 million for the Irish Aviation Authority and
Irish Defence Forces (military) to keep track of covert aircraft flying in Irish-controlled airspace, including military aircraft that do not file a flight plan and do not have their transponders switched on.
Minister for Defence Simon Coveney said the increased surveillance capability would give better coverage of the
Atlantic airspace over which the IAA has responsibility for civil and military aircraft. The safety and regulatory division and the air navigation services of the IAA were split into two separate organisations on 30 April 2023. The Safety and Regulatory Division of the IAA merged with the Commission for Aviation Regulation to become the new Irish Aviation Authority. The air navigation service provider functions of the IAA were transferred to a new ANSP called AirNav Ireland. ==See also==