Isn't the CAA supposed to provide / select an examiner ?
Only for checkflights in regards to initial license issue....so for a CPL or ATPL-checkride-yes.
Not for any (additional) type ratings...
The examiner only needs to examine the type rating skills (in this case: Single Engine Pilot in Command).
Any TRE or FE can do it as long as they hold a R44 rating......(and-in the case of a TRE-he needs to be checked on the R44).