As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C RT WLG CANTED BULKHEAD LWR CAP FOUND CORROSION AT RBL 53 BS 1241 TO 1241. THIS REPAIR IS CONSIDERED TIME - LIMITED FOR 24 MONTHS UNTIL AN IMPROVED DRAINAGE MODIFICATION CAN BE INSTALLED IAW BOEING SERVICE BULLETIN 747-51A2054 REV 1 AS PER UPS EO B747-5310-16853-A.