Ryanair says it has agreed a four-year deal on pay and conditions with its pilots.
The airline said the deal will give pilots pay rises of up to €25,000 a year and a top salary of more than €160,000 annually as well as improved rosters, allowances and conditions.
Ryanair said the new terms and conditions were approved by a significant majority of its Dublin based pilots.
However the union representing almost all Ryanair pilots has queried the claim that a new deal would deliver salaries of up to €160,000.
IMPACT Assistant General Secretary Michael Landers said that the vast majority of pilots would not be eligible for salaries in that range.
He claimed that the pay agreement had not been negotiated in any meaningful way.
Mr Landers said that pilots had been faced with a choice between Ryanair's terms or nothing.
Separately, Ryanair formally lodged two challenges to the proposed €800m second terminal at Dublin Airport.
The first judicial review challenges An Bord Pleanála’s granting of planning permission for the terminal.
The second action challenges the Commission for Aviation Regulation's decision to allow most of the cost of Terminal Two to be recouped through higher passenger charges.
