Tomjnx wrote: For example, when I got a GTN installed, which was only a minor change thanks to the AML STC, I still got dozens of pages of schematics that are basically just a copy out of the GTN IM. What for? One problem with any AML STC such as the GTN is that it is totally generic and doesn’t reflect reality in many aircraft. You couldn’t for example use it as-is in a King Air,...