your photo only tells half the story I was under the impression that BA had an engineering area's such as TBA,TBK,TBJ.
Don't you just wish people understood what they are looking at? TBJ/K is in the bottom R/h corner, TBA wont fit much of LHR's current fleet and the parking area for
TBD/E canbe seen off to the left. (doesn't bedfont look rather empty?
