As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CENTER WING BOX BS540 RBL 15.04 FRUNT SPAR UPPER SURFACE HORIZONTAL STIFFNER AFT EDGE EVIDENCE OF BEING CRACHED REF AAR N/R 99880818 REMOVED AND REPLACED STIFFNER AT CENTER WING BOX STA 540 RBL 15.04 FRUNT SPAR AREA PER UNITED ECRA 5714-01135 AND B737 SRM 51-40-02