ETOPS...
I have just spoken to my source, and without prompting, reiterated what I said above... As also indicated above, my source's source* got it from Boeing, and its not in the Tech Manual etc.!
As I said, not my plane guv, but will be interested to see if it's true, and significant enough to be seen as a "Flap Retract" during the flare from the cabin...
ATB
NoD
* A previous 777 Tech Mgr, and they're flying together soon, so he'll try to get some more info...