What was found
REWORK EXISTING COMPOSITE REPAIR ON UPPER SURFACE OF THE RT HORIZONTAL STAB AT STAB STATION 152, 8" AFT OF AUXILIARY SPAR, REQUIRES REPLACE DUE TO DELAMINATION. NDT OF DAMAGE AREA WAS NOT ACCOMPLISHED PRIOR TO INSTALLING REPAIR DOUBLER, REF N00192 & REPAIR WAS NOT MARKED MAJOR RII. COMPLIED WITH EA F-5510-T0320065 PT 1. RT HORIZONTAL STABILIZER EXISTING UPPER SKIN PANEL REPAIR DELAMINATION. CAT B REPAIR IAW FORM 8100-9, DATED 30 SEPT 2015. MAJOR REPAIR.