What was found
L/H HORIZONTAL STAB INSPAR RIB ASSEMBLY #4 STIFFENER #2 CRACKED. / [01] PERFORMED HFEC INSP ON STIFFENER #2 IAW B737 NDT P6 51-00-00 PROC.23; CRACK NOTED<BR>TOOL USED : NORTEC 600 B/C 166317 CALDUE: 10/22;[02] CUT DAMAGED AREA OF STIFFER #2 ON L/H HORIZONTAL STAB RIB #4 PER REFERENCE SRM 55-10-09-2R-4.;[03] VERIFIED STEP 2.;[04] PERFORMED HFEC INSP ON STIFFENER #2 IAW B737 NDT P6 51-00-00 PROC.23; CRACK NOTED AND MARKED ON WEB <BR>TOOL USED : NORTEC 600 B/C 166317 CALDUE: 10/22;[05] TRIMMED DAMAGED FROM WEB WITH A RADII OF 0.167' PER REFERENCE SRM 55-10-09-2R-4.;[06] VERIFIED STEP 5.;[07] PERFORMED HFEC INSP ON CUT OUT AT WEB IAW B737 NDT P6 51-00-00 PROC 23; NO CRACKS NOTED<BR>TOOL USED : NORTEC 600 B/C 172389 03/23;[08] DUE TO MANY DAMAGE ON RIB # 4; RIB NEED TO BE REPLACE; ORDERED NEW RIB P/N 182A5304-3; NEW RIB INSTALLED ON CUSTOMER BAR CODE TTG8Q00EELDP;[09] VERIFIED 8