What was found
DURING C-CHECK INSPECTION DISCOVERED EXFOLIATION CORROSION IN THE RIGHT LOWER WING SKIN UPPER SURFACE IMMEDIATELY FORWARD OF THE LOWER SPAR AT APPROXIMATELY WING STATION 1000 IN THE LOWER WING SKIN PANEL SPLICE AREA. THE CORROSION EXTENDED UNDER A WING PANEL SPLICE STRAP (UPPER SURFACE OF THE WING PLANK). REMOVED CORROSION, ROTOPEENED, NDT INSPECTED, FABRICATED AND INSTALLED REPAIR FILLER WET WITH SEALANT. ACCOMPLISHED IAW EIAA ENGINEERING CHANGE/REPAIR AUTHROIZATION NR 479-57-089-2. (M)