As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CARGO DOOR AND NOT LOCKED LIGHT ON, IN FLT. ALSO CARGO SWITCH FAULT LIGHT ON. DIVERTED TO GSO FOR REPAIR, 5200 GALS FUEL DUMPED FOR LANDING WT. REQUIREMENT. AIRCRAFT LANDED NORMAL. LUBED DOOR LOCK HANDLE SWITCH AND CLEANED STRIKER PLATES IAW SUP. MM 52-36-11 OPS CHECK MAIN CARGO DOOR, OPS CHECK GOOD LIGHT IND OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.