What was found
AT REAR FUSE EXT, CORROSION FOUND ON SKIN UNDER FWD RAD ALT. ASE BTW FR 6566 AND BTW STR 21L-21R. AT REAR FUSE EXT, UNDER FWD RAD ALT BASE BTW FR 65-66 AND BTW STR 21L-21R REMOVED FOR CORROSION ACCESS. FWD RAD ALT BASE BTW FR65-66 AND BTW STR 21L-1R BLENDED OUT OF LIMIT. CORROSION ALSO FOUND UNDER FWD RAD ALT BASE, SKIN BLENDED FOR INVESTIGATION. PERMANENT REPAIR DOUBLER PERFORMED AT REAR FUSE EXT FWD RAD ALT ANTENNA AREA.