In a CM56 jet engine if the core of the engine seizes completely for whatever reason, will the N1 fan still rotate freely?
In the 737-300 simulator, actuation of "turbine seizure" selector on the instructor panel causes significant noise and heavy vibration and eventually the N2 indicates zero but the N1 still indicates rotation; albeit around 10 N1 only. Does turbine seizure mean engine core seizure? Or are they both different parts of the engine?