What was found
RIGHT HORIZONTAL STABILIZER LEADING EDGE HAS #5 RIB CRACKED. ; / [01] REMOVED RIB #5 FOR RT HORIZONTAL STAB AS PER B737-7 SRM 51-40-02-0G-0 STEP 4.; [02] VERIFIED STEP 1.; [03] LOCATED AND DRILLED RIB AND ASSEMBLY AT #4RIB FROM R/H H/STAB L/E IAW B737 SRM51-40-05-0G-0.; [04] '' STEP 3 CORRECTION'' LOCATED AND DRILLED RIB AND ASSEMBLY AT #5RIB FROM R/H H/STAB L/E IAW B737 SRM51-40-05-0G-0.; [05] VERIFIED STEP 4; OK TO INSTALL RIB #5. RII; [06] INSTALLED RIB #5 AT L/E R/H HORIZONTAL STAB IAW B737 SRM 51-40-02-0G-0.; [07] SUMMARY :REMOVED #5RIB AT L/E R/H HORIZONTAL STAB IAW SRM 51-40-02-0G-0 .LOCATED AND DRILLED RIB #5 AND ASSEMBLY AT R/H L/E HORIZ STAB IAW 51=40-05-0G-0.INSTALLED #5 RIB AT L/E R/H HORIZONTAL STAB IAW B737 SRM51-40-02-0G-0.; [08] PARTS; [09] VERIFIED STEPS 6; 7; AND 8.