What was found
SUPPLEMENTAL INFORMATION: REFERENCE NON ROUTINE C070051. DURING DEN C6 C-CHECK, INSPECTION NOTED CORROSION AROUND THE NUT PLATES LOCATED AT R2, Y1292 BETWEEN FRAME 66 AND FRAME 68. MAINTENANCE REMOVED AND REPLACED THE FLOORBEAM IAW SRM 51-44-11 AND 51-42-11.