Kharon,
The primary effect of this instrument is to allow use of a new method of determining that distance based on criteria provided by the aircraft manufacturer.
Yes yes, a 'new method', a bit like mi mi mi Beakers 'new' Beyond Reason approach to the mystique of aviation investigations?
So this has been written, accepted and published by not a technical person, but by a senior bureaucratic legal hoodoo wordsmith with no technical firsthand understanding or idea, and of course this is after being advised by a junior bureaucrat with a similar 'no idea background' in all things aviation.
No Kharon, we need our hands held, bottys wiped and to be breastfed from the CAsA teat because we are a silly industry. WTF would Boeing, Airbus, our major Australian carriers, FOI's (the smart ones, not those indoctrinated in the laws of Wodger), Pilots, flight ops departments, and old mother Hubbard know!! Thank god we have the CAsA, praise the Lord of troughs, amen!