Aileron brackets that were riveted on today. For the left outbd bracket, I put the first rivet in backwards--shop heads should be on the thick bracket material. But I already set it with the squeezer before I caught the error. Elected to leave the rivet as it is. No one will see it, once the wing tips are on, the distortion to the thinner outbd rib material isn't bad, and I'll probably do more damage drilling out the rivet.