Originally Posted by
Horatio Leafblower
Was the power lever lifted over the gate and the Start locks engaged?
That wouldn't be possible with the engine still running. Start locks can only engage with negative blade angle AND engine speed low enough for the springs to overcome the centrifugal force, i.e. during shutdown.
Simulating an engine failure on a Garrett is a critical exercise and I doubt you'd find any check pilot these days that would retard the PL to less than zero thrust (roughly 20% torque), or too quickly. Must be something else at play here.