As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK INSPECTION DISCOVERED EXFOLIATION CORROSION IN THE RIGHT WING TRAILING EDGE UPPER SKIN PANEL NR 1, AT WS 411.42. BLENDED AWAY THE CORROSION, ROTOPEENED THE AFFECTED AREA, FABRICATED AND INSTALLED REPAIR STRAP AND FILLER. ACCOMPLISHED IAW EVERGREEN AIR CENTER, ENGINEERING CHANGE/REPAIR AUTHORIZATION NR N3203Y-57-009-EAC.