As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO BNA DUE TO THE FLIGHT CREW REPORTING THAT AFTER TAKE OFF L/G GEAR NOT UNLOCKED ECAM DISPLAYED AND DID NOT CLEAR WITH ECAM ACTION - THE AIRCRAFT LANDED SAFELY AT BNA AND TAXIED TO THE GATE UNDER ITS OWN POWER. (OPEN)