TF / G
Staff from AAE can operate on any company aircraft regardless of the TF or G reg, or whether it is AAI or AAE.
Several of the MAN based AAE crew have operated on the G reg Virgin aircraft based there, and a full LGW crew has also operated a football charter on G-VSSS.
I also believe that some AAE crew operated an adhoc for BY few weeks back on the Excel G reg 762.