As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MOUNTING PLATE FOR THE RA #2 AFT ANTENNA ON AFT FUSELAGE SEPARATING FROM FUSELAGE. CLEANED SKIN AND FOUND NO CORROSION ON FUSELAGE ONLY RA MOUNTING BRACKET. NO MATERIAL REMOVED. CRACKS FOUND AROUND RIVET HOLES. SUPPLIMENTAL INFORMATION: FOUND CORROSION OF FUSELAGE SKIN UNDER AFT #2 RA ANTENNA MOUNT DURING REMOVAL OF ANTENNA. REPAIRED FUSELAGE SKIN UNDER AFT #2 RA ANTENNA MOUNT IAW EO-EMB145-53-066-O.