SECTION 14: WING RIBS

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  • See this FB Post on ribs being shipped where embossing was done very shallow or not done at all. Also, newer ribs have an additional relief cut that causes edge distance issues with a nutplate.
  • There is a nutplate you will need to install in Section 20, specifically see 20-6 steps 6 and 9. It is one specific K1100-08 that will be on the bottom aft of the W-1010-R (and W-1010-L). In section 20, you use the bottom skin to match-drill the #8 hole and the #40 nutplate attach holes. But then you have to dimple that #8 hole and the flap hinge bracket's rivets are going to be in your way. Consider using the bottom skin to match-drill this one nutplate now, deburr, and dimple, before you assemble the W-1010-R. See this VAF thread for more info.

Page 14-04

  • Step 2: The second instruction says to insert the snap bushing from the inside but Figure 2 shows it inserted from the outside and that seems to be more correct as the W-1029C angle that got notched would be in the way of the snap bushing when inserted from the inside.

Page 14-05

  • Several builders report callouts on page 14-05 with the wrong number of rivets to attach the ribs to the spar: Innermost rib needs 6 instead of 5 rivets, the 2 ribs inside the outmost rib need 8 instead of 4 rivets. See FB post 3/28/2022 and VAF thread 3/20/2016