Well, I´ve vboroscoped engines with compressor blade failures. The damage is usualy catastophic. Most of the scrap metal usualy gets blown out of the tail pipe, often enough leaving just an empty pipe where the innards of the engine used to be....
About 6 years ago Channel Express had an accident in Shannon, Ireland (SNN
). Apparently a crew of oldtime pilots became complacent and didn´t do check lists anymore. Also, apparently, the landing config warning system gave false alerts, so they pulled the C/B.
The result was that they tried to land their L-188 on the runway without extending the landing gear. They only noticed when the inner props hit the concrete. Then they pushed full throttle and did a go around. #3 engine shedded several prop blades, which went through the cabin (fortunately a freighter). Another prop was so badly damaged, that the vibrations tore the engine off it´s mount and it fell into Shannon industrial estate, right behind the airport fence.
The third engine burnt out. They managed to do a circuit on one engine and landed the plane, this time with landing gear extended.
The plane stood parked beside the Westair hangar for more than a year (I considered buying and repairing it) and got finaly scrapped after everything valuable was removed. The fuselage now serves for training fire fighters on the airport.
Another thing I´ve seen during my apprenticeship in SXF
was an Air Berlin B737-400, which lost a fan blade on #1 engine.The blade went through the fan case and got stuck in the outboard side (about 7 o´clock position) of the fan cowl. The pilots noticed bad vibrations and shut down the engine in flight.
The plane got pulled into the LH
Technik hangar in SXF
for inspection and repair. We had reps of both Boeing and CFM, as well as the German Luftfahrtbundesamt (aviation authority) there taking pictures, and looking for the reason of this damage (at first the considered blue ice, but the lav service panel is on the other side, there was no evidence of a bird strike either). Finaly we removed the engine and sent it to CFM for advanced inspection.