As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 811 JFK-POP, AIR RETURN TO JFK DUE DURING TAKEOFF AUTOTHRUST KICKED OFF. CREW TURNED IT BACK ON DURING CLIMB & IT WORKED NORMAL. NR 2 FMGC FAILED AFTER TAKEOFF. RESET NR 2 FMGC HAD NO EFFECT A/C POSITION INVALID MESSAGE CAME UP. REMOVED AND REPLACED NR 2 FMGC IAW AMM 22-83-34-04, ALL OPS CHECK NORMAL.