As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#33, BOS-CDG. (ETOPS) COND TRIM AIR SYS FAULT - FWD CAB TRIM VALVE INDICATED ON ECAM WHILE TAXING TO GATE. ( COCKPIT/CABIN TRIM AIR VALVES ); REMOVED AND REPLACED FWD CAB TRIM AIR VALVE 12HK. OPS CHECK GOOD. THIS CLEARS MDDR 567961, MX-4 UPDATED PLACARD REMOVED.