16 Dec 1980 - SA330J - 9M-SSC - Main rotor separated after A second stage epicyclic module planetary gear fatigue failure- on contract to Sarawak Shell.
01 April 2009 - AS332L2 - G-REDL - Same as above.
29 April 2016 - EC225 - LN-OJF - Main rotor separated ...
Does it matter what the reason is? Seems to be not confined to the 225 / L1 / 330.
If this case was due to a different reason, how much confidence does that instill, how many reasons can there be for the main rotor to separate from the Puma with it's grandfather rights gearbox?