What was found
RH HORIZONTAL STABILIZER RIB 5 (STAB STA. 129.50); 3RD STIFFENER FROM FRONT SPAR; BOTTOM AREA WITH A CRACK.<[01] NDI REQUEST TO VERIFY CRACK AT DISCREPANCY AREA.;[02] HFEC INSPECTED SUSPECTED CRACK AREA IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 23.<BR>CRACK NOTED AT DISCREPANCY AREA.<BR>EQUIP USED:<BR>-NORTEC 500D ID: IS000680 CAL DUE: 05/2024;[03] REMOVED THE DAMAGED PART AT RH HORIZONTAL STABILIZER STA 129.50 RIB 3RD VERTICAL STIFFENER AND INSTALLED REPAIR PARTS IAW SRM 55-10-09-2R-4;[04] VERIFIED CORRECTIVE ACTION ITEM 3.