For some reason I didn't take a lot of photos this week. Worked on the stall warning sensor, countersank the main spar. Worked on the splice plate between the leading edge and the tank, including installing the nutplates, and started riveting the leading edge skin and ribs.
This is the hole for the stall warning sensor (just a microswitch with tang that hangs out in the breeze).
Here's the microswitch assembly. This gets attached to a mounting plate installed in the leading edge skin.