What was found
LH HORIZONTAL STABILIZER STAB STA 92.70 IN-SPAR RIB NO.3 VERTICAL STIFFNER LOWER TRANSITION RADIUS CRACKED (REF NR 9172710) REMOVED RIB NO.3 AT LH HORIZONTAL STABILIZER STA 92.70 PER B737-800 SRM 51-40-02; CUTOUT DAMAGE AREA IN-SPAR VERTICAL STIFFNER LOWER TRANSITION RADIUS PER B737-800 SRM 55-10-09; PERFORMED HFEC ON CUTOUT IAW NDTM PART 6 51-00-00 PROC 23, NO CRACKS FOUND; FABRICATED AND INSTALLED REPAIR PARTS PER B737-800 51-40-02 15057075-T6 TO T7 AND INSTALLED RIB NO.3 PER B737-800 SRM SRM 55-10-09. MATERIAL USED HEAT TREATED EXTRUSION BAC