@thackney
Aren't those engines supposed to have a collar in the engine which is supposed to retain fan blades that break and decide to depart the airplane.
I don't think that is a common feature. I'm more familiar with areo-derivative turbines used on industrial applications. That is an turbine engine designed first used on a jet, then modified to use as a driver for a compressor, generator, etc. They did not have that type of "bullet-proof" collar either.
I've gone in a generator room where there was a ring of holes where each fan exited the building, all nearly at the same time.
It is not a common failure, but I still tend to catch myself and move outside that line if the engine is running.