As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 AC GENERATOR CAUTION LIGHT ILLUMINATED ON TAKEOFF RUN. CREW ABORTED TAKEOFF. CYCLED NR 1 AC GENERATOR SWITCH IAW CHECKLIST. CAUTION LIGHT EXTINGUISHED. OPS NORMAL. R & R NR 1 BRUSH BLOCK ASSEMBLY AND CLEANED BRUSH BLOCK CONNECTOR. SEATED CONNECTOR. GROUND RAN ACFT. OPS CHECKED GOOD.