From this one - Where is the safety case casa??
Yes sunny:
Dick Smith:
"Mr Smith cited the requirement to have his helicopter’s altimeter checked every two years instead of every five years like in the United States.
and, where is the safety case??
My untutored guess is that the FAA would have done this.
I would like to think that CASA has statistical evidence to back up the Two year requirement and hence can prove that the FAA is misinformed and seriously endangering the American public.