As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACK LEADING EDGE RIB STA 133.15 AT RT HORIZONTAL STABILIZER. REPLACED LEADING EDGE RIB STA 133.15 AT RT HORIZONTAL STAB. DUE TO CRACK NOT ALLOWABLE DAMAGE PART NUMBER USED:186A1307-4;P.O 2021 125409. IAW B737-700 SRM 51-40-02;B737-700 SRM 51-10-02 ITEM 9 AND DRAWING 186A1001 REVISION A SHEET 10.