As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 'C' CHECK INSPECTIONS, THE LT WING STRESS PANEL, 522AT, WAS FOUND TO HAVE CORROSION IN SOME OF THE SCREW COUNTER SINKS THAT WAS BEYOND ACCEPTABLE LIMITS. THE PANEL WAS REPLACED. THIS IS AN AMENDMENT TO HNAA2009010900383 TO CORRECT ITEM 1C, REGISTRATION NR.