Well everyone has to inspect their blades before flight, unless an engineer is on site to certify, or the pilot may be taught by the engineer as a face to face - how to - under an instrument which will then be issued.
Robinson say just check it and sign off daily, CASA say "each flight" being when the A/C lands each time. Maybe CASA have backed themselves into a corner?
A blade from either the accident or the incident, I know not which, is on its way to USA by row boat.
NZ CAA have said the accident blade broke as a result of the accident so no use sending that one.
I guess we wait and see, meanwhile all useful utility work is finished here at least.