EVA Air in recent schedule update filed one-time Boeing 747-400 operation for Taipei Taoyuan – Tokyo Narita route, currently scheduled on 03MAY17. The 747 is scheduled to operate BR198/197 service, temporary replacing A330-300.
BR198 TPE0850 – 1315NRT 744 03MAY17
BR197 NRT1415 – 1650TPE 744 03MAY17
Note the 777-300ER also operates BR198/197 on selected dates in April 2017.