I agree, NickB. It would be interesting to see what evidence Finnair would provide if push came to shove and they were be forced to go to court. If I was to represent the plaintiff in such a case, I would submit a discovery request for the A350 purchase agreements. I am almost sure that the agreements contain detailed provisions as to what the expected reliability is for a completely new aircraft type and that the A350's reliability early on has been within specs or at least close to within specs.