As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE CPCP INSPECTION, FOUND LEVEL 2 CORROSION: CORROSION STA 1372 LBL10 TO RBL10 FLOOR SUPPORT. REMOVED CORROSION IAW B747 SRM 51-10-01. FOUND TO BE OUT OF LIMITS IAW B747 SRM 53-10-03. REMOVED AND REPLACED FLOOR SUPPORT IAW B747 SRM 51-10-01 AND 51-30-02. CORROSION TASK CARD NUMBER C53-210-06. NON-ROUTINE TASK CARD NUMBER 11694.