As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEFECT WO 74296 NR00075: CRACK ON INTERCOSTAL LOCATED FLOOR STRUCTURE BS 540 BTW BL 0 TO LBL 2 4.75 AT PASSENGER CABIN - - RESOLUTION: REPLACED PLATE ON INTERCOSTAL LOCATED ON FLOOR STRUCTURE BS 540 BTW BL 0 TO LBL 24.75 AT PASSENGER CABIN IAW B737-800 SRM 51-40-02-0G-0 AND DWG 143A5240