Have a read and the a think as to how to comply.
Robinson say you have to refinish blades if the paint is eroded
Before the bond line is scoured, so if you re paint as required,
then bond line cracks that the NTSB suggest you look out for are being covered with new paint, in some cases at very regular intervals.
A case damned if you do & damned if you don't.
http://www.verticalmag.com/control/n...es/?a=7891&z=6