What was found
DURING A MAINTENANCE VISIT FOUND CORROSION, LEFT WING, AROUND SCREW HOLES, L/E CENTER SECTION UPPER SURFACE BETWEEN STA XFS 304 AND STA XFS 397.750. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8. FABRICATED AND INSTALLED DOUBLER AND FILLER IAW FAA APPROVED TENNESSEE TECHNICAL SERVICES DER ENGINEERING SKETCH NR EO 99085. (CORROSION DAMAGE RECORDED IN EWA CORROSION PROGRAM).