Your CAA reference number will not change with your new licence.
Technically, it's a licence
re-issue. But poor attention to detail at the CAA in the early days of JAR-FCL now means that they term it (quite wrongly) a licence 'renewal'.
Revalidation, renewal, re-issue and reauthorisation all have specific meanings under JAR-FCL. Unfortunately total bungling incompetence at the Belgrano now means that these terms have become confused..... They released some real Sir Humphrey-esque bolleaux trying to worm the way out of that error.
Because you will have flown a renewal LST quite recently, there's a good chance that it will be recognised by the paranoid Spams, so you
may not need to fly yet another check flight.
It's a good job that they aren't so picky when it comes to UK pilots flying in their wars......
