Around 260 passengers stranded at Shannon Airport for the past three days are to depart for Boston this afternoon.
Their Aer Lingus flight left Dublin on Friday afternoon, but a technical problem was detected after it landed in Shannon.
Passengers have been staying in local hotels since the incident occurred.
The plane departed for Boston after the fault was repaired at Shannon Airport on Friday afternoon, but it recurred 30 minutes into the flight and the pilot was forced to return to Shannon.
Another aircraft was brought in on Saturday but this flight was also cancelled due to another technical fault.
The passengers were transferred to local hotels where they have been staying for the last three days.
A spokesperson for Shannon Airport said they are due to depart at around 1:30 this afternoon.
However, it is understood some passengers sought alternative flights home.