Re PIA:
Officially it can't leave after 23:00 due to the noise restrictions in (I think) the s106 agreement. However I have no doubt some appropriate senior manager / director will give their blessing & it will operate regardless! Otherwise it would go to MAN resulting in loss of revenue (& loss of face.) Of course if only those nice peeps at PIA would ditch the pesky A310 & operate a 777 the there wouldn't be any of these shenanigans.
Should I continue holding my breath?? Starting to turn blue now!
