Well , it was hard to say about the centre gear.
The gear doors hanging between the two mains, were obscuring the image (sunny day, huge shadow under the belly). If I would have to make a guess, it probably was up. I was more focused on the doors and the stowed reverser on #1.
So from what you say, hyd pressure coming from 1+4 should not influence the gear retraction or extension (unless they lost 2 eng which I very much doubt). That's why I am asking you see. I find it hard to believe that a 4eng aircraft, loosing 1 eng, ends up with such a complicated situation as to have to extend the gear on altn on top of having a lost eng.
