What was found
R/H HORIZONTAL STABILIZER RIB #4 STIFFENER #3 LOWER FLANGE WITH A CRACK. / [01] PERFORMED HFEC INSP ON RIB STIFFENER LOWER FLANGE IAW B737 NDT P6 51-00-00 PROC.23; CRACK CONFIRMED.<BR>TOOL USED : NORTEC 600 B/C 172389 CALDUE: 03/23;[02] RT STABILAIZER RIB 4 STIFFENER 3; CUT OUT DAMAGED AT LOWER FLANGE I/B AND O/B SIDE AS PER B737-700 SRM 55-10-09--2R-5 REPAIR 5.;[03] VERIFIED STEP 2.;[04] PERFORMED HFEC INSP ON LWR CHORD STIFFENER #3 O/B IAW B737 NDT P6 51-00-00 PROC.23; CRACK MARKED AND CONFIRMED <BR>TOOL USED : NORTEC 600 B/C 166317 CALDUE: 10/22;[05] PERFORMED HFEC INSP ON CUT OUT AREAS IAW B737 NDT P6 51-00-00 PROC.23; NO CRACKS<BR>TOOL USED : NORTEC 600 B/C 166317 CALDUE: 10/22;[06] STEPS 2 THROUGH 5 REJECTED.<BR>RIBS GOT CONFUSED IN PROCESS. WORK NOT ACCOMPLISHED.;[07] WORK ACCOMPLISHED ON TTG8Q00DKMJB;[08] VERIFIED STEP # 7 NOTE ALL RIB # 4 COMPLETE;[09] ALL RIB # 4 REPAIRS ARE COMPLETE;[10] OK