Could have been a busy place up the front. Seems like damage to hydraulics, no slats, reverse thrust is only on the inboards so thats them out. And maybe not a lot of control with the outboard engine on landing and possibly at a pretty high weight.
How do you calculate the required runway length for that!
Well done all round.
PS: Also black mark on the pylon of 1, maybe some ejected bits found their way into it?