@A330-300. Why would you say that there was an issue with an engine of the aircraft in YQX and then say that it's most likely not related? You shouldn't even suggest it. I am 100% certain that EI engineers wouldn't put any passengers, crew or aircraft in the air if there was a question mark over any technical issue of any sort. They've one of the best reputations out there. Your moniker and location would suggest that you either work for Aer Lingus or you would like to. Show a small bit more respect for your colleagues.
I know for a fact EI wouldn't do that but there was an issue with one of the engines recently which would of being fixed and the aircarft would of being across the pound a few times since this and it could of being the enigne issue
Faults can happon more than once..