b) What could be some potential limitations if Australia adopted the United States’ model for regulating general aviation maintenance? Please detail.
It would be very difficult for an engineering business that services both Charter/Air transport aircraft and other GA operators to compete with someone who is able to carry out "under tree maintenance" when, in relation to the Charter maintenance side of the business, (which may well be of a significantly lower proportion), he must carry all the extra paperwork, have calibrations of equipment/tools etc and numerous other items and requirements that usually come at significant cost. Some middle ground should be found here where there is a requirement for proper licencing which prevents, fly by night operators but simplifies the overall requirements for GA maintenance.