What was found
R/H H-STAB RIB 4 #3 STIFFENER LOWER RADIUS IS CRACKED.<[01] REMOVED THE DAMAGED PART AT RH HORIZONTAL STABILIZER STA 120.30 RIB 3RD VERTICAL STIFFENER IAW SRM 55-10-09-2R-4;[02] HFEC REQUEST ON THE CUT OUT EDGES; WEB AND EXISTING FASTENERS HOLES WITHIN THE REPAIR AREA TO ENSURE NO CRACKS EXIST.;[03] VERIFIED CORRECTIVE ACTION 1.;[04] HFEC INSPECTED BLENDED AREA IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 23.<BR>NO CRACKS NOTED.<BR><BR>HFEC INSPECTED OPEN HOLES IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 16. <BR>NO CRACKS NOTED.<BR><BR>EQUIP USED:<BR>-NORTEC 600 ID: ATS1465 CAL DUE: 09/23;[05] VERIFIED STEP 1.;[06] REMOVED THE DAMAGED PART AT RH HORIZONTAL STABILIZER STA 120.30 RIB 3RD VERTICAL STIFFENER LOWER RADIUS AND INSTALLED REPAIR PARTS IAW SRM 55-10-09-2R-4;[07] VERIFIED CORRECTIVE ACTION 6;[08] VERIFIED MEASUREMENT TABLE