Found out recently that the Navy is looking to go from Mag to Al main gear boxes (and I think Intermediate/Tail rotor as well) in the next few years, even though it created a small weight penalty to do so. (Something less than 50 lb, I think, but I may be wrong about that).
Given that S-92 operators seem to operate quite a bit in salt water environment, is a switch to Aluminum gear boxes a design option under consideration for later production?
If that's close hold/company info, apologies if it seems out of order to ask.