Typical of old GE's...I dunno blown Turbo seals or just worn out impeller but the fuel injection still pumping in fuel like the turbo is hard at work...stuck injector also comes to mind.
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I am not yet older than dirt...but I feel like it.
Watching BNSF power going by the multiple railcams 1 in 50 or 1 in 100 GE 4400hp units with "flame/fire damaged paint
right near the "stack" pass by. BNSF got to be running out of parts. Notice some of the fixes from an engine with different
paint scheme.
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If you are in a horror movie, you make bad decisions, its what you do.