Unlucky for CSX and the train crew, but quite lucky for you! That's something you clearly won't see everyday. Very interesting pictures, considering they got the job done in less than three hours is even more impressive.My wife and I were Trainspotting in Folkston GA (yes I am a lucky man) when we heard a radio call that a CSX engine was on fire. I was ready to head out and shoot the action when the scanner made it clear that the location was extremely difficult to access. The fire department had to cut across private property to access the tracks. As it turns out the fire itself was very small. It was isolated to one of the electric motors that are in the trucks of the driving wheels. The fire was extinguished very quickly and the train engine was pulled to a siding near us to await repair.
The next day the fun began. Slightly before 11am a the company RJ Corman rolled in with a well trained unit to perform the repair. They brought a replacement wheel/motor set with them, two small cranes and a small army of well trained men.
Should be easy enough. All you have to do is remove the wheel/axel/motor assembly out from under a full sized 400,000+ pound locomotive, slip the replacement in place and hook it up. All while setting on a siding next to mainline tracks.
I assumed this would be an all day operation. Total time from mobilization to rolling out was about two and one half hours. This crew worked like a military precision unit. It was fascinating to watch.