As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, THE FLIGHT CREW REPORTED AN ELAC BCL2 FAULT ON THE ECAM. THE FLIGHT CREW PERFORMED AN AIR TURN BACK AND AN UNEVENTFUL LANDING WAS ACCOMPLISHED. MAINTENANCE REMOVED AND REPLACED THE NUMBER 2 BATTERY CHARGE LIMITER IN ACCORDANCE WITH THE REQUIREMENTS OF AMM 24-38-34-41. FOLLOWING COMPLETION OF THE INSTALLATION, THE UNIT WAS OPERATIONALLY TESTED AND FOUND OKAY. CORRECTED PART SERIAL NUMBER TO READ 2081/END.