As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO JFK. DURING CRUISE AN ECAM MESSAGE FOR EXCESSIVE EGT TEMPERATURE ON ENGINE #1 AND THE FLIGHT CREW SHUT THE ENGINE DOWN. THE AIRCRAFT LANDED SAFELY AT JFK WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE #1 ENGINE EGT CJ13 HARNESS CHAFFED BY THE ENGINE COWL AND REPLACED IT PER AMM 73-29-00. A SATISACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.