As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MX INSPECTION, CORROSION WAS DISCOVERED ON THE AFT EXTERNAL FUSELAGE SKIN COMING FROM UNDER THE AIRCRAFT DATA PLATE. MX CUT OUT THE DAMAGED AREA AND PERFORMED A FILLER/DOUBLER REPAIR, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE