SIPTU airport workers are to hold a two-hour stoppage next week, timed to disrupt the arrival of European Union ministers in Dublin for an EU Presidency conference.
The action, being taken as part of the union's ongoing dispute with the Minister for Transport, Mr Brennan, over his plans to break up Aer Rianta, will affect Dublin, Cork and Shannon airports on the morning of January 22nd.
The ministers are set to attend a top level conference hosted by the Department of Justice, Equality and Law Reform.
"It is the first of a programme of limited industrial action focused on Aer Rianta's involvement in the EU Presidency and with a view to minimizing the impact on the travelling public," SIPTU's National Industrial Secretary, Mr Michael Halpenny said.
"Today's decision arises from the ongoing failure of Aer Rianta and the Department of Transport to confirm reasonable guarantees on jobs, terms and conditions of employment and pensions, sought by the employees," he added.
Mr Halpenny said the union, which represents around 70 per cent of Aer Rianta staff, would be escalating its industrial action on a fortnightly basis with other work stoppages directed at the EU Presidency.