As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING WALKAROUND INSPECTION, FOUND LEVEL 2 CORROSION, APPROXIMATELY STA 1520 FILLET ATTACH ANGLE CORRODED. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS. INSTALLED REPAIR ON FILLET ATTACH ANGLE STA 1520 IAW B747 SRM 53-50-04 FIGURE 2. NON-ROUTINE TASK CARD NR 94146.