As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE UPPER CAP OF THE BL 0.07 LONGITUDINAL FLOORBEAM WAS FOUND WITH CRACKS COMMON TO THE FLOOR PANEL ATTACH HOLES BETWEEN FS 660 & 664. THE CRACKS ARE TYPICAL OF BAC S/B 737-57-1210. THE CAP CRACKS WERE REPAIRED WITH ALUMINUM REPAIR ANGLES PER THE S/B AND PER ER/A 379246-14.