I just noticed that the site is showing that the VS12 last Saturday, the 24th was operated by G-VFAR, an A340. It was actually a 747, G-VROC that flew this flight. I took careful note of the name as we stumbled down the steps into the cold morning at our remote stand.
Just so I can make the appropriate correction, can you confirm this was the VS012 that left Boston on Saturday 24th, or landed at Heathrow on Saturday 24th (ie, left Boston on the 23rd).
(I think I might have spotted a separate error in the display on the 'Which Aircraft' tool which doesn't tally with the aircraft database, which I've now fixed.)
Pete