According to the aformentioned ATSB memo, the ATSB believes that the GA, RAA, SSAA bottom of the food chain of aviation is to be made safe via conformance to regulation, as opposed to large RPT operations which require a more sophisticated safety systems approach.
Why then, does not the ATSB review the state of the CASA regulatory environment as it affects safety? To put that another way, does the existence of CASAs 1500 pages of maintenance regulations as opposed to the FAAs 150 pages make us ten times safer than American aviators in this area, or ten times less safe? Or does it have no effect on safety at all? Same with other chapters.