As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF ROLL LT UTILITY BUS, RT UTILITY BUS, AND LT GEN ILLUMINATED. ABORTED TAKEOFF AT 30-40KTS, BRAKE ENERGY WAS A MAX OF 3. A/C RETURNED TO BLOCKS (BTB). DEFERRED LT GENERATOR IAW MEL ABX-24-00-1-2. A/C REMAINS NO ETOPS. A/C RETURNED TO SERVICE.