Pg. 15-5 Step 6: Clecoed and riveted the Left Stub Spar Assy. to the Nose Ribs. Step 7: Inserted the snap bushings into each nose rib. Pg. 15-6 Steps 1-7: Clecoed and riveted the Main Ribs to the Right Spar Assy. Steps 8-10: Clecoed and riveted the Aft Spar Assy. to the aft flanges of the Main Ribs. Pg. 15-7 Steps 1-4: Clecoed and riveted the Nose Ribs to the Right Spar aSSY. Step 5: Clecoed and riveted the Right Stub Spar Assy. to the Nose Ribs. Step 6: Inserted the snap bushings into the Nose Ribs. This concludes Section15.