Drilled, Countersunk and install tank attach nutplates
2 Nov 2016 4.5 hours

Tonight was a lot of drlling and countersinking. I drilled out the remaining holes in the spar flanges and then counterunk the holes for the fuel tank and access plate nutplates. After installing the nutplates for the tank attach screws I countersunk the holes. Tomorrow I’ll finishing install the nutplates for the wing access convers.

Counterinking the rivet holes for the nutplates

Nutplate holes countersunk

The tank attach nutplates installed and the screw holes countersunk

Nutplates riveted on

Design pdevty