As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B737-53-3-0737 MAIN CABIN FLOOR SUPPORT INTERCOSTAL CRACKS AT BL-0 BETWEEN STA 500I AND STA 420 MKD DOT 60-135 REF AAR NR 99850041 REMOVED AND REPLACED UPPER ANGLE PART # 57-5330-3-0006 P.O# 1634457 IAW B737-800 SRM 51-40-02 AND SRM 51-40-05