P. 09-02 Stabilitator. Lots of final drilling of holes and machine counter sinking (MCS). Not to mention that the spars require different flush rivets, so different MCS bits. Be careful here, take your time and be sure to use the correct MCS for the rivet called out in the diagrams. I always practice on scrap material to be sure I'm using the correct bit for the rivet and that the depth of the counter sink is appropriate. Saves me a lot of bad energy! I also took significant care and labeled each hole on the spar to be MCS to be sure to apply the correct bit.
Another thing I did to save time and ease the building process was to deburr parts to the extent possible before separating them (see p. 09-02, step 9). This made it easier to use the scotchbrite wheel. Then go back to get to the parts you couldn't reach after cutting the parts apart.
Moved onto p. 09-03 and was very careful to follow directions and align parts correctly. Everything went together nicely! Good number of nutplates to install and had no problems. Long productive day.
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