Today I completed edge finishing all the wing rib flange relief notches. After this I engraved all the wing ribs with the plans part number so they can be identified after priming. I also engraved all the wing aft spar components. Then I removed all the Van's components identification tags and used some solvent to remove the tag adhesive. Image 1 shows the right aft spar inboard end doubler engraved with its part number.