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, AFT OF STA 2200 LOWER RIGHT SIDE AT APPROXIMATELY 36 HAS BULGE. REMOVED AND REPLACED STRINGER SPLICE IAW B747 SRM 51-10-01 AND 51-30-02. CORROSION TASK CARD NR C53-100-01 PART 6 OF 10. NON-ROUTINE TASK CARD NR 94122.