As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DOOR UPPER DECK FLIGHT LOCK CAUTION MESSAGE. TRANSFERRED TO DMI LIST NUMBER 100272910 IAW KA B747-400 MEL 52-23-3-2. CAT C. DUE 10-5-25. PLACARDS INSTALLED. : REFERENCE DMI 100272910. REMOVED AND REPLACED RIGHT HAND UPPER DECK DOOR LOCK ACTUATOR IAW KA B747-400 AMM 52-23-08. OPERATIONAL CHECK GOOD. THIS CLEARS DMI 100272910. PLACARDS REMOVED.