Transport Minister Leo Varadkar has rejected Fianna Fáil claims that he is dragging his heels in preventing a strike at airports next Friday.
SIPTU staff at Aer Lingus and Dublin, Cork and Shannon airports plan to walk off the job for four hours over the deficit in the pension fund.
The Government has set up an expert panel to look at the issue after other talks failed, but Fianna Fáil said Leo Varadkar should be doing more.
Minister Varadkar countered: "There has been a government intervention. SIPTU...have accepted that intervention but are still going ahead with the strike, almost as if to prove they can close down the airport.
"I think that's a wrong decision that they've made.
"We're putting contingencies in place to keep the airport open in the event of a second stoppage."