What was found
DURING C4 CHECK, DISCOVERED CORROSION ON FLOORBEAM Y-254, FROM FS 16 TO FS 19. MAINTENANCE REMOVED CORRODED SECTION OF FLOORBEAM AT Y -254, FROM FS 16 TO FS 19 IAW AIRBUS SRM 53-11-14 FIG 202. PREPARED NEW FLOORBEAM FOR INSTALLATION IAW AIRBUS SRM 53-11-14 AND 51-47-00. INSTALLED FABRICATED REPAIR PARTS AT Y -254, FS 16 TO FS 19 IAW AIRBUS SRM 51-42-11.