Nov 20 (Reuters) - Dozens of people were stranded in Europe for a second night on Saturday after their U.S.-bound flight made an emergency landing in Dublin following an engine failure, passengers said. Brussels Airlines flight 102 was en route from Brussels to New York on Friday when pilots issued a "pan-pan" message, which indicates an urgent but manageable problem, less serious than a "mayday," when flying west at 37,000 feet over the Celtic Sea, aviation media and tracking websites said. Pilots of the 12-year-old Airbus A330-300 requested to divert to Shannon in western Ireland but switched to Dublin on instructions from the airline, according to Aviation Herald, an independent website which tracks airplane incidents. Lufthansa (LHAG.DE) unit Brussels Airlines did not immediately respond to a request for comment. Passengers praised the crew but said they had been put up in hotels in Dublin before being flown to Paris on Saturday, where many were then unable to get on overcrowded flights to New York days before Thanksgiving in the United States. They included 18-year-old Maja Schmidt from Germany who was heading to New York to work as an au pair. "They didn"t have anything vegetarian so I ate bread and a cookie," she told Reuters via mobile phone. Also on board was 22-year-old Oliver Sommerburg from near Hamburg, Germany, taking only the second flight of his life. "It was crazy, I don"t know what"s going on. They don"t tell us anything," he said. Bernard Vidick, a Belgian judicial officer, said he had been refused a connecting flight in Paris because the plane bringing stranded passengers from Dublin had also been delayed. "This means we are blocked in Paris whereas we should be in New York. We are wasting two of the few vacation days we have," he told Reuters. Carriers serving the United States are bracing for congestion and delays next week as the Thanksgiving holiday overlaps with airline labour shortages.