SIPTU, the union representing airport police and fire service members at Dublin, Shannon and Cork airports, has called off the industrial action threatened for tomorrow.
A formula to resolve the dispute with Aer Rianta was agreed at the Lab our Relations Commission shortly before 3 a.m.
"A number of complex issues have had to be addressed, not only with regard to Wednesday's flight but issues of long term job security of our members," said Mr Jack Nash of SIPTU.
"Proposals have been worked out over a protracted period with the assistance of the LRC. These proposals will now be put to general meetings of our members' tomorrow. They are being recommended for acceptance by the negotiating committee and will therefore be put to ballot."
The outcome was also welcomed by Mr Brendan Daly, the industrial relations manager of Aer Rianta. "The company would be optimistic that these proposals will be accepted and is prepared to enter into meaningful negotiations if the ballot is in their favour."
The union has agreed to defer any industrial action until after the result of the ballot is known. This is expected to take between a week and 10 days.
Earlier, discussions between Aer Rianta management and SIPTU, which represents nearly 400 members of the Airport Police and Fire Service (APFS), appeared to suffer a setback after union representatives received reports from Dublin Airport late last night that personnel from a private security firm were being deployed with extra duties in a TEAM Aer Lingus hangar.
Until then the prospects of averting a strike had appeared good. The regional secretary of SIPTU, Mr Jack Nash, said during an adjournment in the negotiations that the union's priority was to ensure the long term job security of its members at the three airports.
The dispute is over the growing concern among APFS personnel at the increasing role of private security firms at the three Aer Rianta airports.