As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - CREW REPORTED A SOUND AS IF GEAR DOOR CLOSED, THEN NUMBER 2 FIRE WARNING. CAPTAIN DISCHARGED BOTH FIRE BOTTLES. RIGHT ENGINE WAS SHUTDOWN (SINGLE ENGINE TIME 12 MINS). EMERGENCY DECLARED FLIGHT RETURNED JFK LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. AIRCRAFT CURRENTLY UNDERGOING MAINTANANCE.