As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CPCP CHECK INSPECTION, FOUND LEVEL 2 CORROSION, LOWER FUSELAGE FILLET PANEL FRAME CORRODED, STA 960 LBL 22 TO RBL 9. REMOVED CORROSION, CLEANED AND TREATED AREA AND INSTALLED FRAME FLANGE REPAIR IAW BOEING 747 SRM 53-50-04 FIGURE 1. CORROSION TASK CARD NR C53-100-01 PART 3 OF 10. NON-ROUTINE TASK CARD NR 94131.