British Airways Boeing 777-236ER G-VIIL, which has been under maintenance at Cardiff-Wales since 2nd January, positioned Cardiff-Wales – London Heathrow late this afternoon as BA9170 then returned to service operating BA239 London Heathrow – Boston. The aircraft has been reconfigured from 14F/48J/40W/124Y to 8F/49J/40W/138Y with Suites in Business Class.