Roger that. Loose the Jesus nut and you loose the rotor then you loose the helo and crew. (BTW, I've parachuted from CH-47s --tailgate jumps...great platform (when properly assembled!))
TJ—thanks for your service to our country. Yes, the Jesus nut is critical to the operation of the helo.
IF I had my way, every one of these big helos would be equipped with a huge air bag that would cushion the fall if the power fails and the helo heads earthward. We lose too many good man to these helo crashes.