What all does it take to work on aircraft powerplants? I know that you have to get training from the company, but do you have to be certified by the FAA or any other organizations as well? Can you just work on the power plants with out having to know how to work on the airframe, electrical, etc? Reason I ask is because I thought it would be kind of nice to get certified and work on the Centurion powerplants when they make their way to the North American market. I figure it's a diesel, and since I have some background with diesels, that this wouldn't be such a far step from what I've worked on in the past.