As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE OFF FROM ATL, NR 2 ENGINE FIRE WARNING LIGHT ILLUMINATED WITH NO ECAM MESSAGE. AIRCRAFT RETURNED TO DEPARTURE AIRPORT AND LANDED WITHOUT INCIDENT. REMOVED AND REPLACED ANNUNCIATOR LIGHT TEST AND INTERFACE BOARD. OPERATIONAL CHECKED NORMAL. NO FAULTS NOTED.