What was found
LH HORIZONTAL STAB L/E ACCESS PANEL #5 RIB CRACK. / [01] REMOVED # 5 RIB CRACKED AT L/H HORIZONTAL STAB.AS PER B-737-700 SRM# 51-40-02-OG-0;[02] LOCATED AND DRILLED NEW RIB #5 L/E HORIZ. STAB.AS PER B-737-700 SRM # 51-10-02-OG-0;[03] VERIFIED STEPS #1 AND #2.;[04] OK TO INSTALL NEW RIB.;[05] INSTALLED NEW RIB AT LEFT HORIZ. STAB. L/E #5 RIB PER B737-700 SRM 51-40-02-0G-0 AND DRAWING #186A1305;[06] VERIFIED INSTALLATION OF RIB.