What was found
DURING C4/S1 CHECK, INSPECTION REPORTED NUT CLIP AREA CORRODED ON FLOORBEAM -Y1732 AT FR 66, FWD OF R-2 DOOR FRAME. REMOVED AND REPLACED R-2 DOOR SILL IAW A319 SRM 51-42-11; 51-42-11, FIG 8; 51-42-11, PARA. 6; 51-21-11; 51-75-12; 51-12-11; 51-45-11, FIG 8; AND 51-42-11, 7B.