A flight that left on the morning of October 31 was forced to return to the Irish air hub after suffering a "pressurisation system issue".
The problem experienced during the prompted the deployment of oxygen masks on board the .
The flight encountered the issue about an hour into the journey.
Pilots quickly decided to return to Dublin, carrying out an emergency descent and landing safely. Passengers disembarked without injury, according to Ryanair.
A Ryanair spokesperson said: "Flight FR10 from Dublin to Madrid returned to Dublin shortly after take-off due to a pressurisation system issue."
They added: "In line with standard procedure, the crew deployed oxygen masks, carried out a controlled descent, and landed safely in Dublin where passengers disembarked normally."
The airline has since apologised for the incident and arranged a replacement to minimise delays.
The replacement flight took off just before noon on the same day.
One passenger has shared their experience on Reddit. They praised the Ryanair crew for their professionalism during the incident, sharing a photo showing oxygen masks hanging from the plane's ceiling.
They said: "The crew handled the situation impeccably well, their training really kicked in.
"Felt for people with small kids and babies, few kids were really spooked and a few people have refused (understandably) to get on our relief flight to Madrid. Crazy experience all around."
The disruption comes just weeks after another Ryanair flight, bound for Turin, was evacuated on the runway when flames were spotted coming from one of its engines.
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