Speaking of outer wings, I believe it was
XV405 which crashed when an outer wing folded and detached in flight?
As I recall it, and it was a long time ago, the pilot managed managed to regain control after the wing separated and could maintain straight and level flight, albeit at high speed. He asked for advice as to whether he should do a low speed check and the Duty Pilot in the tower suggested he should see how it handled flaps down.
The obliging pilot selected flaps down..... and had a HYD failure as all the fluid poured out of the severed pipes at the end of wing; at which control was lost and they ejected.
Again, IIRC, the pilot was subsequently found at fault for attempting to lower the flaps, since he was the aircraft captain and the DP should have been ignored.