https://viewfromthewing.com/americans-boeing-777-300er-reconfiguration-plan-revealed/
American's Boeing 777-300ER Reconfiguration Plan Revealed - View from the Wing
Dec 18, 2017 - American hasn't publicly shared details of what the configuration of the 777-300ERs ("77W") would look like once premium economy is added -- what those seats...
reconfiguration plan