As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK MAINTENANCE FOUND BUBBLED PAINT AND EVIDENCE OF CORROSION AT AIRCRAFT DATA PLACARD ON REAR FUSELAGE LOWER SKIN. PERFORMED PERMANENT REPAIR OF REAR FUSELAGE SKIN AT AIRCRAFT DATA PLACARD BY THE WAY OF CUTTING OUT DAMAGE AND FABRICATING AND INSTALLING REPAIR DOUBLER IAW ETD2019-170-117637. A/C REMAINS IN CHECK