Flap torque tube to rib clearance

[TLyon]

When I opened up the wing to inventory parts I noticed that the flap torque tube had rubbed against several of the inboard ribs. I seem to remember this question coming up before but I can’t find anything on it.

I’m not comfortable with the idea of this rubbing especially where it can’t be inspected so I’m thinking that will need to get a slightly larger hole.

Question is - how much clearance is enough? Right now they don’t touch on the table but apparently vibrate enough in shipping and I assume they would in flight as well…

[alaskabearhawk]

1/8th to 3/16ths should be fine.