As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACK STIFFENER FLOOR STRUCTURE LOCATED BS540 AT LBL24.75 TO RBL24.75 CENTER SECTION (2 EA) / REPLACED STIFFENER 2 (E/A) LOCATED BS 540 AT LBL 24.75 TO RBL 24.75 CENTER SECTION DUE TO CRACK NOT ALLOWABLE DAMAGE PART NUMBER USED ARE:143A5240- 35 P.O 2021-118065 143A5240-36 P.O 2021-118066 IAW B737-700 SRM 51-10-02 ITEM 9; 51-40-02 AND DWG 143A0060 REV. A SHEET 36