British Airways Boeing 777-236ER G-VIIS, which has been under maintenance at Cardiff-Wales since 2nd May, positioned Cardiff-Wales – London Heathrow this afternoon as BA9172 and immediately entered service as BA239 London Heathrow – Boston. The aircraft has been fitted with New First, upgraded Economy and Premium Economy cabins and THALES AVOD. This completes both the Boeing 777-200/200ER refurbishment programme and the New First programme. Fourteen Boeing 747-400s remain with Old First.