As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 0797437) MAIN CABIN FLOOR STRUCTURE SUPPORT HAS A CRACK AT RADIUS, LOWER SURFACE BS.540 APROX RBL.2. REMOVED AND REPLACED MAIN CABIN FLOOR STRUCTURE SUPPORT PN# 143A5240U12 AND PN 143A5240-10 AT BS.540 AT APPROXIMATELY BL 0 TO RBL.24 IAW B737 SRM 51-40-02.