What was found
RIGHT HORZONTAL STABILIZER INTERNAL LOWER AREA OF RIB HAS 1 CRACK AT STAB STA.129.50. GROUNDED - YES. CUT OUT DAMAGE AREA IAW B737-800 SRM 55-10-09-2R-4. FABRICATED LOCATED & DRILLED REPAIR PARTS IAW B737-800 SRM 51-40-05 AND SRM 55-10-09-2R-4. ALODINED CUT OUT AREA & REPAIR PARTS IAW B737-800 SRM 51-20-01. PRIMED CUT OUT AREA & REPAIR PARTS PER BOEING SOPM 20-41-02. INSTALLED REPAIR PARTS IAW B737-800 SRM 55-10-09-2R-4 AND SRM 51-40-02. INSTALLED WEBS #1 & #2 PER BOEING . DWG# 182A2401 REV F AND IAW B737-800 SRM 51-40-02.