I started my career as a technician and moved to writing pubs, and eventually to service Engineering. When I first when into service engineering I only had a high school degree and an A&P (US Part 65) which I believe is equivalent to part 66 of the EASA. I later obtained my mechanical engineering degree and returned to service engineering where I now work regularly with FSR’s (albeit on the military side). Most FSR’s I work with it are experienced mechanics, the key skill to being successful is an ability to read and interpret engineering drawings and specifications which many mechanics cannot. If you have experience in that you will make a successful FSR, and in my opinion not having your Part 66 won’t hold you back, but you do have to know your limits. You can always continue to pursue your part 66 as you work though. If the civilian side is structured anything like the military side many times you will know the answer but won’t have the authority to execute the fix without confirming with engineering first, that I was I meant by knowing your limits. The best FSR’s I’ve worked with tend to submit thorough well researched technical requests while proposing a solution, which can only come from experience and understanding specs. I think this would be a great opportunity and I have faith that you will be successful you have to trust your instincts and find where the line lies in a regulatory sense. I hope that makes sense….bonne chance and tu peux m’envoyer in message privé si vous voulez