What was found
LEFT HORIZONTAL STAB INSPAR RIB NR 4, STIFFENER 3 LOWER AREA CRACKED. REMOVED DAMAGED IAW SRM 55-10-09-2R, REPAIR 4. PERFORMED HFEC INSP ON STIFFENER IAW NDT P6 51-00-00 PROC.23, CRACK NOTED. PERFORMED ROTO INSP ON STIFFENER IAW NDT P6 51-00-00 PROC.16 NO CRACKS NOTED. REMOVED CRACK IAW SRM 55-10-09-2R, REPAIR 4. PREFOMED ROUGHNESS OF 63MICRO INCHES RA AND INITIAL PART 125 MICRO INCHES IAW SRM 55-10-09-R2 R 5. LOCATED AND DRILLED A REPAIR SRM 51-40--05 0G-0. TREATED AND PRIMED AREA IAW AMM 51-21-41-370-802 AND AMM51-21-72-370-802. INSTALLED NEW REPAIR RIB $ STIFFENER #3 SRM 51-40-02-0G-0.