As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3273 DISC: DIV - RECEIVED ENG 1 FIRE INDICATION INFLIGHT, RAN QRH & ECAM WHEN THRUST LEVER PLACED AT IDLE WARNING WENT AWAY. LEFT ENGINE AT IDLE AND DIVERTED TO PIB. C/A: FOUND BOROSCOPE PLUG AT 6 O'CLOCK POSITION OFF. REINSTALLED PLUG PER A320 AMM 72-51. PERFORMED GVI INSPECTION PER A320 AMM 05-24 . NO DEFECTS NOTED. RAN ENGINE FOR 5 MINUTES, ALL INDICATIONS. (LP: 6138135)