Oh man, that is very interesting! The Boeing 777-300ER probably has the most complex emergency equipment of any aircraft with over wing emergency exits. Thank you for sharing.
I have one question regarding the emergency retraction system. It provides hydraulic fluid to the retraction side, but what about fluid in the extension side? If it would be just left there it could stop it from retracting, so is there some valve to dump it out(maybe to some container with another valve cutting out the supply) or something?
