What was found
DURING C4/S1 CHECK, INSPECTION REPORTED CORROSION ON UPPER SURFACE OF LT FLOORBEAM Y765 AT FR68. FLOORBEAM FOUND TO BE OUT OF LIMITS IAW A319 SRM 53-00-14, PG 106. REMOVED AND REPLACED FLOORBEAM AT FRAME 68-70 IAW A318 SRM 53-00-14, SRM 51-42-11, DRAWING D53472815 AND DRAWING D53472780.