What was found
DURING C4/S1 CHECK, INSPECTION REPORTED FLOORBEAM BETWEEN FRAME 68R AND 69R CORRODED. BLENDED CORRODED AREA AND FOUND FLOORBEAM TO BE OUT OF LIMITS IAW SRM 53-00-14, FIG 102. REMOVED AND INSTALLED FLOORBEAM IAW SRM'S 51-42-11, 51-44-00, AND 51-72-11.