NH~zero.This means the HP turbine has ceased and therefore engine has ceised. Also you will observe erratic indications on other instruments..and possibly some noise and vibration during seizure.There will almost certainly be High ITTs, dropping torque(or over torque during seizure befomage) and hardly any windmilling of the prop.Oily smell might seep through the aircon system and accompanying smoke.But the one most reliable indication in the cockpit is low to zero NH.
Last edited by Trackdiamond; 23rd Oct 2013 at 11:55.