Grainger: As far as I can tell, the new AD that has been "issued", is actually the 4th amendment of a current AD that has been around for some time. (since 1990?) There is reference to the R22 SL-53 and -21A.
The rumour that was mentioned in the other thread regarding timex blades being used, if true, will obvously compound any existing faults in the blades.
An eddy current inspection every 200 hours on all M/R blades is going to be a real pain especially for remote location operators.