Separated the upper panels from the lower panel leaving the rear spar cap attached to the rear spar. I added a Q-Cell radius at the junction of the forward face of the rear spar and the spar capstrip. This is in preparation for the two plys that I will be adding (same as the ribs and false spar). The edge that overhangs the rear face will be trimmed and sanded flush with the rear spar face.
I tack glued the RH wing tank vent fitting to the LH wing skin using a mill fiber mixture.