Judging by the burn mark on the side of loco, I would guess that 56118 suffered a traction motor fire and that would have caused her final demise.
Another Fertis example is 56051. It appears slightly work stained but other than that is in excellent visual appearance.
The same can not be said for RES liveried 47782. Its red paint is badly faded and it has been tagged by a graffit artist.