As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CDG - DURING CRUISE NR 4 ENGINE NACELLE TEMPERATURE INDICATOR SHOWED BOTH FIRE DETECTION LOOPS IN THE OVERHEAT RANGE. REDUCTION OF ENGINE THRUST AND SUBSEQUENT SHUTDOWN REVEALED TEMPERATURE INDICATOR IN ERROR. CLEANED LOOP CONNECTORS AND CONNECTORS OF LOWER AFT LOOP. OP CHECKS NORMAL.