What was found
DURING ROUTINE CPCP INSPECTION, FOUND LEVEL 2 CORROSION: FLOOR SUPPORT BETWEEN SEAT TRACKS LBL 10 AND LBL 30 STA 1301 CORRODED. REMOVED CORROSION IAW B747 SRM 51-10-01. FOUND TO BE OUT OF LIMITS IAW B747 SRM 53-10-03. 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 11634.