Trying to recall!!! It was something like:

G-XLEA F Dec 13 cool
G-XLEB F Jan 14 cool
G-XLEC F Nov 13 cool
G-XLEC C Dec 13 cool
G-XLED F Jun 14 OK
G-XLEE F Apr 14 OK
G-XLEE C Jun 14 OK
G-XLEF F Oct 14 OK

My recollection is earlier aircraft in first few months of service.