Its on a dispute over staff transfers and redundancy terms.
Forsa Trade Union's criticised Aer Lingus management over a decision not to attend a Labour Court hearing, due later this month, on the closure of the company's Shannon base.
The union had referred the issue to the court, after failing to reach agreement over staff transfers and redundancy terms.
83 cabin crew are affected by the move which was announced by the company in May.
In a statement, Aer Lingus says the decision to close the Shannon cabin crew base was not taken lightly and a reversal will not be possible.
Fórsa critical of Aer Lingus stance on Shannon base https://t.co/bguF0DE22G via @rte
— Fórsa trade union (@forsa_union_ie) July 8, 2021

Ryanair Boss Stands By His Comment Comparing Other Airlines To Rapists
The European Central Bank Announces Interest Rate Increases
Gardaí And Europol Investigate Horse Trafficking In Kildare And Other Counties
Vice Chair Of Kildare Club Believes GAA Are "Seriously Lacking Leadership"
Kildare Highlighted As Having Highest Suicide Rate In Ireland
Four HSE Regions Lose Power Over Day-To-Day Spending
Harris Prepares For First Budget As Finance Minister As FG Think-In Takes Place
Bord Gáis Energy Announce Price Rise