The fusulage snapped at the rear bulk head taking many hydraulic lines with it.If that isn't a hydraulic failure I don't know what is. In a previose life I worked on westwinds for over 10 years. In a situation like this it is not at all suprising that the gear free fell down after impact. So please don't talk crap
I guess the "
Under-water landing gear free-fall test" that was carried out as part of its certification would reveal the answer to that question!
Dr 