As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#2223, (ETOPS). 'OUTBD CREW REPORTS CLASS II MX TEMP CTL 1 MSG ( CLASS II MAINTENANCE MESSAGES DISPLAYED ON ECAM STATUS PAGE OF ECAM SYSTEM DISPLAY 4) FAULT(S) INDICATED BY TEMP CTL 1 (2) ). REMOVED AND REPLACED AIR CONDITIONING SYSTEM CONTROLLER #1 (ACSC) OPS TEST GOOD PER AMM 21-61-34