What was found
PDX - C5 - RT OTBD HORIZONTAL STAB LUG HAS A SMALL CRACK (APPROX .125 INCH) ON UNDER SIDE OF ANTI ROTATION TAB ON AFT SIDE. FPI INSPECTED AT THE AREA IAW CRJ700 NDTM PART 1, 51-20-008 CRACK INDICATION CONFIRMED IAW CRJ 700 NDTM PART 1 51-20-006. MAPPED DAMAGE FOR ENGINEERING. REMOVED CRACK IAW TC REO 670-55-11-145/1 W/O 71869 GENERAL NOTES 1-4. HFEC LOW CRJ 700 NDTM PART 1, 51-20-006 AND REO 670-55-11-145. NO CRACKS NOTED. REPAIRED THE REQUIRED AREA BY ROTO PEENING IAW TC REO 670-55-11-145/1. COMPLETED RT OUTBOARD HORIZ STAB LUG IAW REO 670-55-11-145/1 STEPS 7-9.