I am not familiar with the S76 FADEC system but I would not like to think that if a pilot demands excessive power from the gearbox to get his aircraft out of "trouble" that the FADEC would over-ride his demand when the manufacturers Tq limits are reached!
In fact the aircraft I flew until quite recently would allow both engines to supply OEI LO power at the same time in just this event; the transmission will get trashed but everybody lives to tell the tale
