What was found
RT HORIZONTAL STABILIZER IN-SPAR RIB STA 92.70 CRACKED IN TRANSI TION RADIUS OF #3 VERTICAL STIFFENER.MKD 126-010. REF. AAR N/R:90238551 GENERATED COMPLIED WITH HFEC AT RIGHT HORIZONTAL STAB. RIB STA 92.70, STIFFENER #3 FOUND CRACK , NO CRACK NOTED IN ADJACENT HOLES IN REF. B737 PG6 51-00-0 PROC 23 & PROC 16, CUT OUT DAMAGE AT STIFFENER #3 STA 92.70 STA , PERFORMED HFEC INSP ON CUT OUT AT STIFFENER #3 STA 92.70 I.A.W B737 NDT P6 51-00-00 PROC 23, NO 51-40-02 T-ANGLE AND DOUBLER I.A.W B737-800 SRM 55-10-09, REPAIR #4 SRM BAC 5602, LOCATED , DRILLED , TREATED PRIMED AND INSTALLED CRACKS NOTED , HEAT TREATED MATERIAL FROM 7075-T6 TO 7075-T7 IAW INSPECTION C/W