As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: WHILE DESCENDING FROM FL 230 AT IDLE POWER, THE ENGINE 1 FUEL FLOW WAS 640 LBS/HR AND ENGINE 2 WAS 1280 LBS/HR. ECAM STATUS PAGE DISPLAYED ENGINE 2 FADEC AFTER SHUTDOWN AT THE GATE. REMOVED AND REPLACED FUEL COOLED OIL COOLER FUEL TEMPERATURE THERMOCOUPLE.