The AN-3 bolts that mount the aft end of the rudder slider bar to the floor are screwed into two nutplates in the floor. In the QB fuselage, these nutplates are already installed. One of the two accepted the bolt with no problems, but the other had to be tapped with a 10-32 tap in order to accept a bolt. I took care of that today.
I also began laying out the 0.032" doubler that will surround the avionics access-door. I traced the piece of bulkhead that I previously cut out, then I added 3/4" to the top and side dimensions.
Finally, I primed the components of the pedal adjustment latch. I'll paint them when the weather warms up, then rivet them together.