What was found
LCQ - MAJOR REPAIR - DURING C-5 CHECK CORROSION WAS FOUND MAIN CABIN FLOOR WEB SUPPORT AFT OF R-2 DOOR BETWEEN BS 986 AND BS 993, RBL 36 TO RBL 45. MAINTENANCE REMOVED CORRODED WEB SUPPORT FROM BS 986 TO BS 993, RBL 36 TO RBL 45; FABRICATED A NEW REPLACEMENT SUPPORT PER DWG 69-77477; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02, PARA 4.