I had the same thing happen to me. The excess heat from the pumps running fuel speed burns up the brushes in the pumps. I had a set fail fairly quick on me. The set I'm on now are almost two years old and I'm going to replace them. I run the TI 285 pumps.
I operate 4 GE 7FA combustion turbines and 2 GE D11 steam turbines. I got my start in a waste to energy facility. I've worked with many guys who were boiler techs and combustion turbine techs in the Navy.
I haven't had a chance to run it again. During those passes my fuel pressure was dropping. Had a pump go down and the other was right behind it. Hopefully in the next couple weeks I'll get to run it again.