Bugged on the right,
Yep, I have to say if you had got to the point where you had lost all four hydraulic puns (causing loss of the Utility and Booster systems), you would be lucky to still be airborne. I've been aboard aircraft returning from Norway in the winter where the gear has been frozen, and refused to come down. Usually it was "fixed" by opening the small floor level access panels and allowing the cabin air to warm them up.
Smudge