As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN; FLOOR SUPPORT CRACKED AT BS 540 BETWEEN BL-0 AND RBL-6.<[01] REMOVED AND REPLACED FLOOR SUPPORT PER B737-800 SRM 51-40-02 AND BAC DWG 143A5240;[02] REMOVED AND REPLACED FLOOR SUPPORT PER B737-800 SRM 51-40-02 AND BAC DWG 143A5240 VERIFIED COMPLETE