As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - INFLIGHT, CREW REPORTED LEFT GENERATOR DC BUSS OFF INDICATION AND CROSS TIE LOCKOUT. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. FOUND AN OPEN WIRE AT P1 1221 AND R5 3. SECURED WIRE IN RECEPTICLE R5 3. SYSTEM GROUND CHECKED NORMAL OPERATION.