I've not got the time to confirm, however TCX is operating B767-300 that are at least 25 years old. Also, they have a number of early A330 that are more than 20 years old. TCX major maintenance is contracted out to a third party in the middle east. Jet2 care for all their own aircraft here in the UK.
Not into NCL they don't (and this is the NCL thread).
Jet2 used to get maintenance on the 733's done in Romania - isn't this now the case?
Also, if "All airlines have to abide by the same laws and meet the same standards" why all the comments about maintenance being done in the Middle East, Lithuanian and Slovakian operators, etc - just plain old snobbery or an implication of lower standards?
