Drill and countersink inboard top skin and wing walk doublers

I clecoed the wing walk doubles and inboard top skins to the spars and ribs.

Match drill #40 rivet holes for nut plates along inboard edge.

 

Final drilled #19 the screw holes and dimpled the one furthest aft.

 

Final drilled #40 and countersunk all of the holes in the skin that are common to the wing walk doublers.

 

Disassembled everything.

 

Today’s Time (hours):	2.0
Wing Time (hours):	71.0
Total Time (hours):	282.0