Originally Posted by
Trent 972
Commercial Pilots...
While not knocking APS at all because the people who run it are good and decent knowledgable people, I can't help but wonder that all the APS learning is predicated on a "Conforming Engine".
Where can a Commercial pilot, operating possibly many different engines concurrently, find a data plate (or whatever) that says the engine is a "Conforming Engine"?
Umm, I think you're reading just a little bit too much into the word there.
It simply means an engine which conforms to the type certificate, as amended by STC. That is to say; is within overhaul limits, had been maintained according to the manufacturer's instructions, and hasn't been modified outside the manufacturer's Specs.
IOW, in the US at least, any engine in commercial service would be a "conforming engine" unless it had undocumented modifications.
For example, a Ly-Con competition engine would not be a "conforming" engine, as they make modifications like installing high compression pistons not covered by the type certificate of subsequent STC. But then, you won't find a Ly-COn non-conforming competition engine ine an aircraft in commercial service, because it's not permitted by regulation.