What was found
RT HORIZONTAL STABILIZER IN-SPAR RIB STA 92.70 CRACKED IN TRANSI TION RADIUS OF #4 VERTICAL STIFFENER.MKD 126-009. REF. AAR N/R:90238550 GENERATED COMPLIED WITH HFEC HOLE AT RT HORIZONTAL STAB. RIB STA 92.70 1 E/A NOTED IN #4 STIFFNER AND NO CRACK IN ADJACENTS HOLES, CUT OUT DAMAGED AT STIFFENER#4 RIB STA 92.70, CONFORMED HFEC INSP ON CUT OUT AT STIFFENER #4 , HEAT TREATED MATERIAL FROM 7075-T6 TO 7075-T7, IAW BAC 502, LOCATED, DRILLED, TREATED, INSTALLED "T" PROCCESS 23 AND SRM 55-10-09, REPAIR #4 B737-800 SRM 51-40-02, NDT 51-0000 PROCESS 15 & 25 NDT 16 ANGLE AND DOUBLER AT RT HORIONTAL STAB RIB 3 TO 92.70 I.A.W. INSPECTION C/W