What was found
LEFT HORIZONTAL STAB INSPAR RIB, HSS 129.50, THIRD VERTICAL STIFFENER WAS CRACKED. ACCOMPLISHED HFEC OPEN HOLE AND CUT OUT INSPECTION, NO CRACKS NOTED IAW NDTM PART 6; 51-00-00, PROCEDURE 16, AND 23. ACCOMPLISHED GVI OF ALL AREAS WITHIN REPAIR AREA, AND UNDERLYING STRUCTURE, NO DEFECTS NOTED IAW SRM 55-10-09-2R-4, STEP 4E. FABRICATED A REPAIR, LOCATED AND DRILLED IAW SRM 55=10-09-2R-4, REPAIR 4, REPAIR INSTRS 4F - J. TREATED AND PRIMED THE REPAIR IAW SRM 55=10-09-2R-4, REPAIR 4, REPAIR INSTRS 4K & L. INSTALLED THE REPAIR IAW SRM 55=10-09-2R-4, REPAIR 4, REPAIR INSTRS 4M - R.