What was found
REPAIRED CORRODED AREAS ON THE RT UPPER WING SKINS, UNDERNEATH THE MIDDLE AND FORWARD WING-TO-FUSELAGE DRAG ANGLES, BY BLENDING, TREATING, AND PRIMING AFFECTED AREAS, REPLACING A CORRODED SKIN WITH NEW P/N 6922680-28 S/N NSN, AND INSTALLING AN OVER-SIZED FASTENER PER FIELD REPAIR FR-680-0113-4610 REVISION (-) APPROVED BY FAA FORM 8100-9 DATED 27 SEP 2017