What was found
REFERENCE NON ROUTINE C073394. DURING DEN C3 C-CHECK, INSPECTION NOTED CORROSION ON THE FLOOR SUPPORT NUT CLIP HOLES LOCATED AT STATION -Y1292 BETWEEN FRAMES 68 AND 69. MX REMOVED AND REPLACED THE FLOORBEAM IAW SRM 51-44-11, 51-42-11 AND 51-75-11.