Thanks replies Chuckles, Lancer and indeed DeBurcs.
working out my line of sight and angle off the approach, I was looking pretty much 260-280 into the sun, so that would have put the bus in or around Glebe-ish, at definitely sub 2000.
Maybe I'm wrong, but the pitch up looked "quite definite" and from my line of sight, the bus seemed initially to roll to the left, then the right and then pitched up (at a guess more than 10 deg, looked initially like at least 15-20 to me) it then later flattened out.
I spotted her later on a "wide" recipocial returing to re-join the approach with a right turn somewhere over the western burbs.
Must have been fun for the crew.
thanks replies all, espec the explaination of the GA procs.
Cheers
7g