As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ECAM ENG 1 FIRE WARNING. PERFORMED OPERATIONAL TEST OF ENGINE FIRE AND OVERHEAT DETECTION WITH CFDS TSM TASK 26-12-00-710-002-A TEST PASSED. PERFORMED VISUAL INSPECTION OF #1 ENGINE FDU CONNECTORS NO DEFECTS. PERFORMED VISUAL INSPECTION FOR FIRE DAMAGE ON #1 ENGINE NONE FOUND. TOMC CUNCURED IS NORMAL. RAN ENGINE FOR 10 MINUTES NO FIRE WARNING OCCURED. OPERATION TEST OF LOOP AND SQUIBS NORMAL. PERFORMED SECOND ENGINE RUN FOR 15 MINUTES AT IDLE POWER,NO FIRE WARNING OCCURED. REPLACE FDU 1 AS PRECAUTION PER AMM 26-12-34 REMOVED AND REINSTALLED ENG1 FDU IAW AMM TASK 26-12-34-400-001-A. OPS CHECK GOOD.