Conned Rod,
Without knowing which AWB you are referring to, because you didn't put up a link, I would hazard a guess it is the one about gaining a Maintenance Approval, an MA.
Show us all the alleged instrument that has been made under CAR 42 ZC(6) or any other, which purports to override Schedule 8 as it stands.
As for your last post, that has already been comprehensively answered by me and others, including direct quotes from CASA documents.
Tootle pip!!