What was found
DURING ROUTINE CPCP INSPECTION, FOUND LEVEL 2 CORROSION, FS1100 LBL70 SEAT TRACK UNDERSIDE HAS CORROSION. REMOVED CORROSION IAW B747 SRM 51-10-01. FOUND OUT OF LIMITS IAW B747 SRM 53-10-01. FABRICATED REPAIR IAW B747 SRM 53-10-5 FIG 34. INSTALLED SEAT TRACK SPLICE REPAIR IAW B747 SRM 53-10-05 FIG 34. CORROSION TASK CARD NUMBER C53-210-05. NON-ROUTINE TASK CARD NUMBER 25305.