On the very outboard end of the wing spar just behind the landing light bay (Fig 2 pg 13-03) there are 4 K1000-3 Lock-nuts installed. However I can not find what is attached to these on any of the remaining plans. Are these used for anything?
Will look at my plans tomorrow at airport. Are there two k-1000 3 at each wing location? If memory serves me thosr those k-1000 3 are where your aero led light brackets may bolt into them.