Originally Posted by
Hartington
My guess would be that the 2nd diversion was crew duty hours related. After 4? hours in Anchorage the crew would not be "legal" to fly back to London. BA don't keep crews in Anchorage so they needed to go somewhere with a spare crew to take the plane home. Quite an ordeal for the pax.
This is going to come over as being overly nit picky, sorry, but given the sub-forum we are in it it might be worth mentioning that (unless things have changed) BA like many airlines don't have
spare crews or
spare crew members sitting around down route. It sometimes became apparent during down-route disruption when I was flying that some of the public did sometimes assume there were..hence the nit-pick.
That said I'd agree what you suggest in terms of crewing is possible; I think Toronto is currently a BA T7 destination so yes, I'd guess that whilst unusual some fast re-assigning/shuffling of duties of crew already on slip in Toronto might have been done to get the HND passengers through to London.
Be interesting to get the actual story.
Edited to add: Here is a story of a BA 78& having to divert to Anchorage earlier this year:
https://onemileatatime.com/news/brit...787-anchorage/