What was found
FS 559.00+112 TO FS621 L/H FLOOR SILL HAS NUMEROUS SIGNS OF LIGHT SURFACE CORROSION AROUND NUT PLATE HOLES (C-CHECK) RO 2/07/2020 REMOVED AND REPLACED CARGO SILL REF SRM, DWG, AND REO, VERIFIED ALL STEPS COMPLIED WITH, COMPLETED TASK CARD.