When I write of “failures” - I am referring to intentional failures - blade out, bird strike, ice ingestion, and over-cooling the turbine case to cause it to impinge upon the turbine blades and create a sudden engine stoppage.
I’ve witnessed a PW2037 literally rip itself from the front engine mount, pivot downward on the rear mounts, , then slam fan case first onto the test house floor ... and the damn engine kept running, until the diffuser case flange bolts fractured, spinning it 180 degrees.
You could see the engineers literally sh*t their pants!
I’ve seen fan blades blown out at the hub root - and watch a Kevlar-wrapped steel containment case elongate into an ellipsoid, whose long axis then proceeds to revolve about the center axis of engine.
I’ve watch compressor stalls, where the fireball shoots 30 feet beyond the engine inlet, then explodes rearward out the turbine exhaust duct, so loudly you’d think bombs were going off.
I mainly worked production, but we did share some of the test cells with R&D. I've only lost two engines myself (one was a compressor blade ingestion, the other was a DECU failure that fried the hot section).
Thanks for the post reply - brings back memories of my younger years. I work in a nice quiet office now (that I'm old and grey).