3 decades since I flew that very jet, can't imagine they have that many cycles or hours on them, even now. And that may be the problem: not enough usage for reliability. Hard to tell from photo, but looks like some flap extended. So maybe only a single hydraulic fault? Can't really recall the systems, but yellow and green had PTU connection and Ac pump. I diverted once purple for an engine prob after departing LHR; landed LGW. So it happens....