FlyTUITravel From United Kingdom, joined May 2007, 723 posts, RR: 0 Reply 1, posted (6 years 1 month 2 weeks 2 days 6 hours ago) and read 4590 times:
I know in the past it has been operated by the 744 but I heard this was changing to 77W. Cannot remember when though. Also, AI have also been using the 77L on the LHR-JFK but that is just familirisation for the crews. (Excuse my spelling).