Step 19. Clecoed the HS-710 Reinforcement Angle and HS-714 Splice Angle to the Horizontal Stab Assembly using the common holes in the left and right front spars. Match-Drilled #30 then clecoed the remaining holes in the front spar and angles that were previously filled with rivets, into the doubler. Match-Drilled #30 the remaining holes in the doubler into the front spar and angles.
Step 20: Removed the doublers and angles from the assembly. Deburred the holes drilled in the previous step. Scuffed, cleaned, and primed the doublers, and touched up primer on the angles. (Photo 1) Will let the primer cure for a few days before continuing.