A "loud bang" and the "smell of smoke" in the cockpit forced a cross-Atlantic flight into an emergency landing at Dublin Airport.
The London to New York flight Delta Flight diverted to Dublin after running into trouble in the air yesterday.
Emergency services attended the airport as the plane landed safety at around 7pm.
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Fire crews escorted the plane to safety before an investigation was carried out by the Air Accident Investigation Unit.
A daa spokesman told Dublin Live: "daa can confirm that on Monday evening a Delta flight which was en route to JFK Airport in New York from London Heathrow requested to divert to Dublin after the smell of smoke was reported in the cockpit and a loud bang on the portside of the aircraft.
"After successfully landing in Dublin just before 19:00, the aircraft was escorted by airport fire crews. Following an investigation by the Air Accident Investigation Unit, it was identified that an air cycle machine had gone out of service."
He added: "The flight departed Dublin Airport, to continue its journey to JFK, just after 23:30 on Monday."
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