As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CDG INFLIGHT T065/28DEC ZRH TO JFK - FIRE OVERHEAT SYSTEM WARNING FAILED. NUMBER TWO ENGINE FIRE DETECTION LOOP 2 PREVIOUSLY PLACARDED. CREW UNABLE TO RESET. LANDED CDG WITHOUT INCIDENT. REPLACED FIRE DETECTOR SYSTEM CARD 644501 AND TEMP CONTROL CARD 285T0094-6 AS PRECAUTIONARY. SYSTEM GROUND CHECKED NORMAL OPERATION.