Problem for Australia is that there may be no one with sufficient time, expertise and objectivity in the regulator to properly analyse the data and refuse to adopt this AD verbatim.
Creamie,
Too true.
The last engineer (as opposed to LAME) who had serious knowledge and experience with piston engines retired quite some time ago.
The AOPA US developed failure statistics showed the illogical position of the FAA clearly, why a proper cost/benefit analysis was bypassed has never been explained.
Sadly, high level administration of the FAA is seeing fever and fever people of serious aviation expertise, and more and more "career" public servants.
Tootle pip!!