Took my wheel pants off today to investigate a suspicious noise and found this. The brake disk is making intermittent contact with the gear leg. From the looks of it, this has been going on for a while. Has cut a notch into the edges. The top surface of the gear leg is slightly concave, so only the edges are affected. My IA says he thinks a spacer is missing. The A&P who works with him says it needs to be shimmed for alignment. Neither are sure because we don't have a parts diagram. While I am chasing down a catalog, does anyone know the answer?
How alarmed should I be?
How alarmed should I be?