What was found
L/H HOR. STAB INSPAR RIB NO. 4 AT (STAB STA 120.30) STIFFENER NO. 3 CRACKED / [01] CUT OUT DAMAGED SECTION ON RIB #4; VERTICAL STIFFENER #3; PER REF. B737 SRM 55-10-09-2R-4 REPAIR 4; FIG. 202; DETAIL 'A[13] LOCATED AND DRILLED NEW REPAIR PARTS KIT; PER REF. B737 SRM 51-40-05-0G-0 AND 55-10-09-2R-4; REPAIR 4;[14] VERIFIED STEP 13. OK TO TREAT AND PRIME REPAIR PARTS AND WEB.;[15] APPLIED ALODINE AND PRIMED ON RE WORKED AREAS; PER REF. B737 AMM 51-21-41-370-802 AND 51-21-72-370-804;[16] VERIFIED STEP 15. OK TO INSTALL REPAIR PARTS.;[17] INSTALLED HORIZONTAL STAB. MACHINE IN SPAR RIB STIFFENER REPAIR AT RIB # 4 STIFFENER # 3 ; PER REF 737 SRM 55-10-09-2R-4; AND APPLIED FILLET TO THE REPAIR PARTS PER REF 51-20-05-0G-0;[18] CORRECTION INSTALLED HORIZONTAL STAB. MACHINE IN SPAR RIB STIFFENER REPAIR AT RIB # 4 STIFFENER # 3 ; PER REF 737 SRM 55-10-09-2R-4; AND APPLIED FILLET SEALANT TO THE REPAIR PARTS PER REF 51-20-05-0G-0;[19] VERIFIED STEP 18.;[20] INSTALLED HORIZONTAL STAB. MACHINE IN SPAR RIB STIFFENER REPAIR AT RIB # 4 STIFFENER # 3 ; PER REF 737 SRM 55-10-09-2R-4; AND APPLIED FILLET SEALANT TO THE REPAIR PARTS PER REF 51-20-05-0G-0;[21] VERIFIED STEP 20.