Aviater, agree 100%. Too many engineers bend over for the owners and have no idea of the implications in the event of an accident.
Take a look at Para 1.18.5 of the Willowbank 206 accident as a classic example.
Investigation: 200600001 - Collision with terrain; Willowbank, Qld; 2 January 2006; VH-UYB, Cessna Aircraft Company U206
Even under Schedule 5 you need to follow the MM or have good reason why you did not (Your honour I know more than the manufacturer ...

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