After rechecking the plans several times I can't see how this is right. The plans call for the outboard aileron hinge bracket to be countersunk and an AN426-4-7 rivet to be installed with the flush side on the outboard bracket. When the ailerons are installed per the plans with all the washers in place, I only have about a 32nd of an inch of clearance when the aileron rotates between the shop head and the aileron bracket installed on the aileron itself. If the head were to be installed in the other direction there would have been almost 1/4 inch of distance between the outboard aileron bracket and the shop head of the rivet. See pics. Has anyone run into this? My fix so far has been to relocate the washers for more clearance.