So, my annual started mid-April and was postponed a few times for parts, but now that everything is installed, my AME was going through the last steps of the inspection, meaning wing panels, when he encountered some corrosion in the mid-wing area front spar(about 8ft from the cabin), where a steel doubler is located.  We've contacted Mooney to find out if there are any repair procedures in place if not??? Any advice @M20Doc or anyone?