Before I moved to take a job in a different state last year, I was working with part of the Oklahoma Wing of the Confederate--oops, now Commemorative--Air Force. They're in the process of restoring an A-26 that had come to them from the Arkansas Wing. Their airplane had been the Monarch...
The Boeing D-590 Parts Standards manual lists, in the individual listing for each standard, the manufacturer's part number for each of their products that are qualified to that standard (the hiloks, that is; this type of coverage is somehwat spotty for other types of standards, esp. the older...
What davidjh has is correct. Each manufacturer develops its own 'recommended' program, which is approved by that manufacturer's governmental agency. Each operator is free to develop their own program, and get it 'blessed' by their governmental agency.
Each operator uses its airplanes in a...