What was found
DURING A MAINTENANCE VISIT FOUND CORROSION, LEFT WING L/E, AROUND SCREW HOLES LEFT WING L/E CENTER SECTION UPPER SURFACE BETWEEN XFS 304.000 TO 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 IAW FAA APPROVED TENNESSEE TECH SERVICES DER ENGINEERING SKETCH NR EO-99-085 WITH APPROVED 8110-3, DATED MAY 21, 1999. (CORROSION DAMAGE RECORDED IN EWA CORROSION PROGRAM).