yr right,
Once again, as we have come to expect, you avoid the main issue.
Show us an example of where a Hangar Keepers (or similar) insurance policy limits the application of AD/ENG/4 and prohibits the policy holder's staff from signing out an aircraft if an engine is past Manufacturers Recommended TBO.
This nonsense is only an issue in Australia, I am mystified as to why engines in Australia are apparently so mush less reliable, compared to US/CA/NZ etc., that they must be limited to a figure that is a "recommendation", without regard to the service condition of the engine.
Is it substandard maintenance by CASA licensed LAMEs like yr right, and/or are the general run of Australian pilots unable to demonstrate adequate engine handling ability, so that maximum engine life is achieved.?
Tootle pip!!