What was found
REFERENCE NON ROUTINE CO51321. DURING C3 C CHECK INSPECTION NOTED THE L2 DOOR SILL AFT OTBD NUT PLATE HOLE WAS CORRODED. MX CUT CORRODED AREA OUT OF THE SILL WEB, FABRICATED REPAIR FILLER AND INSTALLED REPAIR IN ACCORDANCE WITH THE REQUIREMENTS OF A319 SRM 51-73-00, 51-42-11 AND ENGINEERING AUTHORIZATION EA NR A9-53R-30617. UPON COMPLETION OF THE REPAIR, IT WAS INSPECTED AND FOUND ACCEPTABLE.