AER Lingus passengers endured delays earlier today after the airline's reservations system failed.
"Aer Lingus has confirmed that its reservations system went down today at 1pm for approximately one hour," the airline said in a statement.
"IT worked to resolve the issue.
"During the outage check-in was suspended, while boarding was processed on a manual basis to continue the operation and depart flights that had already been checked in.
"Bookings were also impacted during that period.
"The system has fully recovered and flights are operating as normal. We apologise to customers for any inconvenience caused."