Brief Description: Drill Flap Hole, Deburr Left Side Skin
I reinstalled the F-623 corner ribs to open the initial hole for the flap actuator pushrod. Used a step drill and opened each side to 1/2 inch. This will be the starting point when we work the final opening for the flap actuator after the wings are on. Removed the F-623s and deburred the holes in the ribs and skins.
Removed the left F-770 forward side skin. Deburred all the holes in both sides. Began scuffing the rivet lines with scotchbrite.
