What was found
DURING ROUTINE CPCP INSPECTION, FOUND LEVEL 2 CORROSION BS980, RBL50, PANEL SUPPORT FRAME CORRODED. REMOVED CORROSION IAW B747 SRM 51-10-01. FOUND TO BE OUT OF LIMITS IAW B747 SRM 53-10-01. REPAIR FRAME FLANGE IAW B747 SRM 53-50-04. INSTALLED REPAIR IAW B747 SRM 53-50-04. CORROSION TASK CARD NUMBER C53-100-01. NON-ROUTINE TASK CARD NUMBER 25167.