What was found
(LOG 0739958) ELONGATED HOLES ON PAX CABIN FLOOR SUPPORT LOCATED ON STA 520+18 , FROM 25RBL TO 45RBL AND WL 208. REMOVED AND REPLACED FLOOR SUPPOR WITH ELONGATED HOLES STA.520+ 18, 25 RBL-45 RBL, WL 208 IAW B737-800 SRM 51-40-02-OG, AND BOEING DWG 143A5240 REV:B.