What was found
RH STAB RIB #5 (STA 129.50) HAS CRACK AT LWR O/B FLANGE BETWEEN STIFFENERS #1 AND #2. / [01] PERFORMED HFEC INSP ON RIB#5 STA 129.50 LOWER O/B FLANGE BETWEEN STIFFENER#1 & 2 B737 NDT P6 51-00-00 PROC.23; CRACK CONFIRMED MARKED<BR>TOOL USED : NORTEC 600 B/C 172389 CALDUE: 03/23;[07] FABRICATED REPAIR ANGLE AS PER B737-700 SRM 55-10-09-2R-5;[08] VERIFIED STEP 7<BR>OK TO TYREAT AND PRIME ANGLE;[09] TREATED AND PRIMED AS PER B737-700 AMM 51-21-41-701; B737-700 AMM 51-21-72-370-801;[10] OK TO INSTALL ANGLE;[11] INSTALLED REPAIR ANGLE AT RIB#5 STA 129.50 O/B FLANGE BETWEEN STIFFENER#1AND #2 LOWER SIDE SRM 55-10-09-2R-5;[12] FABRICATED FILLER MATERIAL USED 7075-T6-.063 SRM 55-10-09-2R-5;[13] VERIFIED STEPS 11 AND 12;[14] CORRECTION TO STEP 8. <BR>RII INSPECTION ACCOMPLISHED BY MANUEL RABASSA<BR>VERIFIED STEP 7<BR>OK TO TREAT AND PRIME ANGLE;[15] CORRECTION TO STEP 10. <BR>RII INSPECTION ACCOMPLISHED BY MANUEL RABASSA<BR>OK TO INSTALL ANGLE;[16] TREATED AND PRIMED AS PER B737-700 AMM 51-21-41-701; B737-700 AMM 51-21-72-370-801;[17] INSTALLED REPAIR ANGLE AT RT HOR. STAB RIB 5 SRM 55-10-09-2R-5;