Turbine blades coming apart is not a full catastrophic engine failure. We had Pratt's blow turbine blades through the fuselage on occassion on our Vipers. Big bang and loss of thrust, return to base.

No grenade, just a hole in arcraft and a whole lot of maintenance to get the aircraft fying again.

Compressor failure is a totally different animal failure wise. Results of that is good bye everything!