he calendar l=mit is 180months / 15year, these engines will Be due Overhaul in Oct 15, 20=3 (about 3.8years away) cost $1M per engine, I spoke with Neil Humphrey (Randy Learners Heli Pilot) he told me TurboMeca t=e manufacture of the S76 aerial 2S2 engine installed on the 576C++ is possi=ly going to extend th