Dublin, Cork and Shannon airports could be shut down next Thursday, 2 April due to a strike by SIPTU members at the Dublin Airport Authority.
SIPTU later said it has not sanctioned industrial action at any of the airports.
The strike, scheduled to take place between 4am and noon, on Thursday, 2 April would cause disruption to thousands of passengers travelling in and out of the country.
The notice of industrial action also refers to the non-payment of the 3.5% increase due under the national wage agreement.
That matter is now expected to be dealt with as part of the resumed national partnership talks.
In a statement, the DAA described the planned strike as totally unwarranted - and urged the union to call it off to avoid needless concern to passengers.
It has written to SIPTU saying all matters relating to the national wage agreement should be considered within the talks between the social partners on a new national agreement.
In relation to increments, which are outside the national wage agreement, the DAA has indicated that this issue is best dealt with under the auspices of the Labour Relations Commission.