As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER CLIMB OUT, THE CREW LOST THE NR1 DC GENERATOR. AS A PRECAUTIONARY MEASURE THEY RETURNED TO DEPARTURE FOR MAINT TO CORRECT THE PROBLEM. MAINT RERACKED THE NR1 DC GEN CONTROL PANEL AND PARALLEL THE DC GENERATORS IAW THE MM. THE AC WAS RETURNED TO SERVICE AND RETURNED WITHOUT FURTHER PROBLEMS.