As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CENTER WING BOX BS540 LBL 54.60 FRUNT SPAR UPPER SURFACE HORIZONTAL STIFFNER AFT EDGE EVIDENCE OF BEING CRACKED REF AAR N/R 99880823 REMOVED AND REPLACED STIFFNER AT CENTER WING BOX BS540 LBL 54.60 UPPER SPAR AREA PER REF ECRA 5714-01154 AND B737 SRM 51-40-02