<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by House:
It's a bit more complex for 777's... The reconfigured planes are used on East Coast-Europe routes only, as they do not have the range to serve SFO/LAX nonstop.</font>
Unfortunately, flying a 777 to/from the east coast is necessary but not sufficient. For example, UA960 flies from SFO-CDG and returns as UA909 on CDG-IAD. So UA909 is not one of the reconfigured planes.