Not sure why you would need to ask that. If he is ex RAF so what?
Anyway being particular about aircraft is one thing but there certainly is no shortage of hulls out there.
The real issue here is that the guys and gals already interviewed deserve either a yes/no or a bit of feedback to let them know why the delay.
Come on Jet2! A bit of feedback for the potential troops please, good CRM and all that.
Please don't emulate the pikey from Dublin with poor comms