As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ECAM MESSAGE FUEL AUTO TRANSFER FAULT, FOLLOWED BY ECAM FUEL F. USED /FOB DISAGREE C FUEL LEAK PROC APPLY FUEL RIGHT WING TANK OVERFLOW. AIR RETURNED TO MIA, EMERGENCY DECLARED. REMOVED AND REPLACED L/WING PROBE 4 IAW AMM28-42-15. SEE AALA202001309008.