As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HIDDEN DAMAGE: CORROSION AND CRACK ON SKIN, ALSO SUNKEN AND BROKEN FASTENERS AT SETTLEMENT SURFACE AREA (FUSELAGE STRUCTURE) OF LOWER TCAS ANTENNA. (CORROSION LEVEL 2). REPAIRED PER ER/A 575558-14 REV ORIGINAL (SECTION I) PERMANENET REPAIR AND ETI-88-19-015 REV 3.