The focus of this section is the preparation of a lot of the internal structure parts for the wings – specifically the ribs. As usual, I took some time to review and understand the plans including service bulletins and/or change notices (I didn't find any in this case). The plans for this section contain primarily part preparation steps that have been used in previous build steps. One item that did concern me was the note that the hardware (bolts, washers, nuts) to attach the ribs to the spar are included as part of the main spar assembly. I wondered about that during the spar preparation step as well since some of the drawings showed bolts where I had empty holes. In my case, the hardware was packed in a separate bag in the wing kit. There are 28 ribs to prepare as well as some additional parts like flap hinges and torque tube brackets, so I expect this step will take a long time with very little visible progress until the very end.