What was found
LEFT HORIZONTAL STABILIZER LEADING EDGE; INTERNAL #4 RIB CRACK NOTED AT RIVET EDGE HOLE (DOT-223 LHLE4). / [01] REMOVED #4 RIB AT L/H HORIZONTAL STAB L/E AS PER REF SRM 51-40-02-0G-0.;[02] LOCATED AND DRILLED #4 NEW RIB AT L/H HORIZONTAL STAB L/E AS PER REF SRM 51-40-05-0G-0.;[03] VALIDATED STEPS 1 & 2<BR><BR><BR>OK TO INSTALL NEW UNIT;[04] INSTALLED #4 RIB AT L/H HORIZONTAL STAB L/E AS PER REF SRM 51-40-02-0G-0.;[05] SUMMARY :REMOVED #4 RIB AT L/H HORIZONTAL STAB L/E AS PER REF SRM 51-40-02-0G-0.LOCATED AND DRILLED #4 NEW RIB AT L/H HORIZONTAL STAB L/E AS PER REF SRM 51-40-05-0G-0.INSTALLED #4 RIB AT L/H HORIZONTAL STAB L/E AS PER REF SRM 51-40-02-0G-0.;[06] [FINAL] VALIDATED STEPS 4 & 5