Fabricate: W21-09 x 8 Clip. W21-13 x 2 Forward Vertical Channel. W21-14 x 2 Aft Vertical Channel.
Descrepancy on the drawings as to which direction the flanges go when assembling the wing ribs to the spars. Drawing SNX-W21 shows W16-06L Aft Wing Rib, left side, with the rib flange lip facing to the left (down on the drawing) which is the outboard side of the wing.
Drawing SNX-W21 also shows W16-06R Aft Wing Rib, right side, with the rib flange lip facing to the left (down on the drawing) which is the inboard side of the wing.
Sonex drawing SNX-W07 shows a top view of both the left and right wings, and it shows the flange or lip on all ribs facing inboard for both wings.
I emailed Sonex tech support for clarification, Kerry at Sonex replied as follows:
All the ribs have the flanges facing the left side of the airplane. Wing rib installation is shown on drawing W14. No explanation of why SNX-W07 shows all flanges face to the inboard side.
