This sounds and smells like a fishy product ...Gone Off,
If this is actual fact then the Robinson Company do not deserve to sell another Heli at all, what a con, when I trained for my PPL(H) it was done on a Brand new Robby 22, and then a R 44, both almost brand new, I got my ticket at 4 months, but I noticed on my walk rounds the blades on the R22 were already looking worn and not in comparison to the rest of the Tub, I pointed this out to the FI, and was given a cursory type of answer which more of less made my mind up to stay away from the Robinson products for ever.... despite mastering the R22 and the R44 for my ticket, and having fun doing so, but my background in the Steel and Transport industry gave and led me to have major concerns.
Sad "init"