Hi Sultan,
I tell you what, if you can honestly say that the 412 transmission system has no commonality with the 2xx series of Bell helicopters and is an entirely new top-to-bottom drive train, then I withdraw my statement. I strongly suspect that there may be one or two 204- and 205- IPC numbers in that highly mature MAIN XMN, I could be wrong and would be delighted to hear about it!
Regards
TOD