As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(59-5305-1-0003) MAIN CABIN FLOOR STRUCTURE WET AREA FLOOR SUPPORT AT BL0 BETWEEN STA 277 AND 294.5 HAS CRACK .REF AAR NR 100013045. REMOVED AND REPLACED FLOOR SUPPORT(INTERCOSTAL) AT MAIN CABIN FLOOR STRUCTURE WET AREA AT BLO BETWEEN STA 277 AND STA 294.5 PER REF B 737 SRM-51-40-02-0G-0 AND DWG 141A5400.