BA have been forced to cancel a number of flights from LGW in recent weeks that had been planned to be operated by a T3 E70. The flights should have been operated by G-CIXW. Over the last week or so this aircraft has instead been used to op ex LCY for BACF. Resulting in a few flight cancellations. Flights planned to be op by the E70 this weekend will now be operated by a PrivatAir 737. Does anyone know what is the reason for all the disruption??