As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACK STIFFENER FLOOR STRUCTURE BS 540 BETWEEN RBBL 24.5 AND RBBL 45 CENTER SECTION / REPLACED STIFFENER FLOOR STRUCTURE BS540 BETWEEN RBBL 24.5 AND RBBL 45 CENTER SECTION IAW B737-700 SRM 51-10-02 ITEM 9 AND 51-40-02 WITH ASSY P/N 143A5240-32 # PO 2021 118523