Nigel is right, but I was refering to the fact that the #1 killer can't get elected dog-catcher, but we spend hours discussing esoteric emergeinies that occur once per century.
How about a new thread - What to do if the main rotor shaft breaks. Happens just as frequently.
Now that my rant is over, the solution to a stuck tr control in a hover is do nothing. Since the tr is stuck where you left it, you are not spinning wildly, so just cool your jets. When you finish getting nervous, just roll down the throttle about 5 to 10 % Nr, and let the aircraft sink. It will probably rotate to the left a bit, but so what. Let it sink to tounchdown, then roll the throttle all the way off, lower the pitch, and buy a beer.