As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT HORIZ STAB INBD SIDE OF RIB AT STAB STA 101.9 0 VERTICAL STIFFNER NR 1 IS CRACKED AT THE LOWER TRANSITION RADIUS. CUT AND REMOVED THE VISABLE CRACK FROM STIFFENER NO. 1 AT STA 101.90 RH HORIZ STAB IAW B737-800 SRM 55-10-09-2R-4. FABRICATED REPAIR ANGLE SHIMS AND T-ANGLE IAW B737-800 SRM 55-10-09-2R-4. INSTALLED ALL REPAIR PARTS IAW B737-800 SRM 55-10-09-2R-4 AND B737-800 SRM 51-40-02.