As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 DC GENERATOR FAILED IN FLIGHT. CREW FOLLOWED CHECKLIST AND GENERATOR FAILED AGAIN. CLEANED WING ROOT CONNECTION, 2431-TB3. CLEANED GROUND AT T.1 CURRENT TRANSFORMER AND CONNECTORS AT AUX AND MAIN BATTERIES USING STANDARD MAINTENANCE PRACTICES. OPS CHECKED GOOD DURING GROUND OPERATIONS.