To begin this section, I had to cleco the W-00009B Wing Box J-Stiffener - Short to the Inboard Bottom Skin. However, I wanted to make I was clecoing it to the appropriate location on the Skin. So, in the picture below, you can see parts off the Bottom Skin, J-Stiffener - Short (on the right), and J-Stiffener - Long (on the left).
Once I verified the proper location for J-Stiffener, I clecoed it to the Inboard Bottom Skin as shown below.
Now, it’s time for the ADAHRS mounting bracket. So, I’m supposed to make the my mounting bracket look the same as the plans excerpt below. First, the W-00012E Mounting Zee had to be clecoed to the W-00012A Mounting Plate. Then, the Mounting Zee and Mounting Plate is clecoed to the Bottom Inboard Wing Skin. Lastly, the five holes common to the Mounting Plate and J-Stiffener had to be match-drilled #30.
Here is what everything looked like when it was finished. The five copper clecos at the bottom of the picture were the locations the holes were Match-Drilled. I used the two blue clips to make sure the distance between the Mounting Plate and J-Stiffener remained constant.
Finally, I deburred and dimpled the #40 holes in the J-Stiffeners (Long and Short).