What was found
FOUND DURING C-CHECK, CORROSION ON SEAT TRACK LBL 18.3 STA 640 TO STA 686 ON FLOOR PANEL FLANGES. MAINTENANCE REMOVED CORROSION DAMAGE IAW SRM 51-70-40. REMOVED 10 NUT PLATES TO FOM IAW SRM 51-40-23, MATERIAL REMAINING OUT OF LIMITS, REF SRM 53-30-60.