Some excellent replies and reminds us of the value of this Forum.
GS Pilot's quote of the Check List prompts my input.
Having a couple of hours on 212/412's....I would note that in reading the Bell Flight Manuals careful consideration of how to interpret some of the language must be taken.
Not that Bell's tech writers and lawyers are any different than other Manufacturers as they all have the same concerns.
When Flight Controls are mentioned does Bell include Throttles as one of them?
I suggest not as they are a separate item after the mention of "Flight Controls-Friction" and are not considered flight controls in the accepted definition meaning cyclic, collective, and pedals.
One concept says Throttles are a secondary flight control for example....how they may be used during Tail Rotor problems to alter torque effect and assist in yaw control of the aircraft.
The mention of friction settings on the Flight Controls is a whole different kettle of fish than the problem under discussion here.
I was taught to check for full travel of the throttles and ensuring there was some cushion felt when at full open....Then to apply sufficient friction to them to ensure they remained at full open unless reduced on purpose by the Pilot.
If there was no "cushion" felt....that could be an indicator of a rigging problem of some kind.