As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE GENERATOR TRIPPED DURING CRUISE. RETURNED TO DEPARTURE AND LANDED WITHOUT FURTHER INCIDENT. MX ACCOMPLISHED BPCU BITE. FOUND FAULT MESSAGES, 'DP TRIP', 'CT LOOP GROUND'. FOUND WIRE W374-401B-18 WITH SHORT TO GROUND. REPLACED FIREWALL RECEPTACLE DUE TO BAD INSULATOR. RT GENERATOR OPS CHECKED OK.