Helicopter Association International (HAI) posted in its May 27, 2016 newsletter this
link that apparently shows a new airworthiness directive (AD) proposed by the FAA.
The proposed AD would apply to "Robinson Model R44 and R44 II helicopters with an MRB part number (P/N) C016–7, Revisions N/C, A through Z, and AA through AE; and Model R66 helicopters with an MRB P/N F016–2, Revisions A through E."
"The proposed AD would require a one-time inspection of the MRB for a crack, corrosion, dent, nick, or scratch, and either altering the MRB or removing it from service."
Comments regarding this new proposed AD can be addressed to the FAA and must be received by July 26, 2016.