yes I do have extensive knowledge of these and other rotary aircraft and do not care to make ill-informed comments in an industry and forum that seeks to make scape goats out of hear say and conjecture
these blades have been in service for many years now and in Australia which has an extensive fleet of r22,r44 & r66 aircraft there has been little to report of failure let alone fatalities relating to these or the previous -5 & -2 blades
until the first set of blades are properly examined by robinson only then can we say there is a problem. until then then yes this is a knee jerk reaction that will hit many poor operators who are doing the right thing and yes this will impact the maintainers too
casa has done this in response to their bladder tank debacle let us all never forget that people did perish in those terrible accidents but all were due to pilot error not due to an unsafe aircraft
if we look at aircraft throughout aviation they have all hade their pitfalls
didn't the americans call the as350 the falling star?