I have recently encountered this problem. I attended an aircraft type course at the manufacturer over in the states. Unfortunatly the manufacturer is'nt JAR147 so when I applied to the CAA for a type rating on my JAR66 licence, I was refused.
The CAA kindly informed me that all I have to do is obtain the course sylabus, and with the aid of my companies quality dept demonstrate to the CAA how this meets the requirments of JAR147.
If that did'nt pi55 me off enough, the b*****s charged me £81 for the privilege!
Sometimes I wonder if its worth the effort to get yourself licenced.
I knew I should have been a postman.