As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:C M/D - BS 1241 RBL 76 CANT PRESSURE DECK FOUND CORRODED. BLEND OUT CORROSION DEPTH 0.015, WIDTH 4", LENGTH 6". THE BONDED DOUBLER REPAIRED AS PER HAECO RS R-53-48-34796. THIS REPAIR IS CONSIDERED TIME-LIMITED TO 24 MONTHS UNTIL AN IMPROVED DRAINAGE MOD SHOULD BE PERFORMED IAW BOEING SB 747-51A2054 REV 1 AS PER UPS EO B747-5310-16853-A.