Think your usually reliable calculator has gone up the spout here unless
Airbus have somehow managed to sell a 520 seater A330
I think he was trying to say it had 266 seats, so less than an A332.
During the last month or so MAN has had numerous visits by the ultra long range A380s with a few less seats than the normal ones
But worth remembering the loss of seats on the ULH A388 comes from economy, but carries the same number of F/J seats...