There's not much point putting the information in the handbook because all Robbos in the UK will have been modified. It was a maintenance issue anyway. I don't see the need for a page in the handbook - its history, been and gone...
You say there's been no action - sorry, I think there has - the really relevant action (to fix the problem) has been done. Give the CAA and Robinson some credit - the information was clearly disseminated and acted upon.
And as Grainger said, we check the sprag clutch every startup - a SOP.
Lu, you may have safety at heart but by being so pedantic you just become irritating, out of date, and spoil any valid point you might have had to make.....
In contrast, when Dick Sanford imparts something Robbo related, I get elephant style ears and take in every word he has to say and it gets fixed in the memory bank.... its not the number of words... its the way they are delivered!