As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(SUPPORT TASK) MAIN CABIN FLOOR STRUCTURE INTERCOSTAL AT STA 344 -360 BL0 CRACKED. TRANSCRIBED FROM HAECO GSO NR 9282394. REMOVED AND REPLACED INTERCOSTAL P/N 141A5410U23 P/O 1062193.1 I AW B737-800 SRM 51-40-02 PARA 70. AND BAC DWG 141A5400 REV-. INS TALLED AND REMOVED FOD PROTECTION IAW SWPM 20-00-.08 HAECO GSO MECH V901143