What was found
LEFT HORIZONTAL STAB INTERNAL RIB, APPROX HSS 193, CRACKED AT THE BOTTOM OF THE NR 3 VERTICAL STIFFINER ON THE INBD FACING SIDE OF THE RIB. REMOVED ONE DOUBLER AND FILLER TO FOM IAW SRM 51-40-02. CUT OUT THE CRACK IAW SRM 55-10-09-2R. FABRICATED REPAIR ANGLE, TEE ANGLE, FILLER, AND DOUBLER IAW SRM 55-10-01-2R-11. INSTALLED ALL REPAIR PARTS IAW 55-10-09-2R-5, & SRM 55-10-01-2R-11. APPLIED TOP COAT IAW AMM 51-21-73.