IMC / IR(R) embedded privileges currency
Does anybody know the answer to this, it keeps exercising my mind.
Amongst other ratings I hold a UK CPL, EASA CPL, and UK IR(R).
The IR(R) is listed on my EASA CP, it is not listed on my UK CPL. When I queried this a couple of years ago with CAA, they told me that this was because UK professional licences contain embedded IMCR (sic) privileges.
Now, as I've never allowed the IMCR/IR(R) to go out of currency, it has never been an issue. But what I have never been able to find is the *legal* requirement to be able to exercise those privileges? Common sense says you should be within 25 months on a rating revalidation test, which I always am *but* those are only ever shown on my EASA licence, not my UK CPL.
Let's say I tore up my EASA CPL and simply used the UK CPL to, say, fly a CofA Bulldog (a stupid thing to do, but possible). How would I, or anybody else, ever show that I am legally permitted to exercise those IR(R) privileges?
It doesn't strictly matter in the real world, but I'd be interested if anybody knows.
G