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 INTERCOSTAL, STA 955 LBL 6. REMOVED AND REPLACED INTERCOSTAL IAW B747 SRM'S 51-10-01 AND 51-30-02. CORROSION TASK CARD NR C53-100-01 PART 3 OF 10. NON-ROUTINE TASK CARD NR 94130.