As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, THE RIGHT ENGINE FIRE HANDLE ILLUMINATED AND THE FIRE WARNING BELL SOUNDED. THE CREW FOLLOWED THE COM AND THE WARNINGS CEASED. THE FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE THE RIGHT ENGINE FUEL HEAT MANIFOLD AND THE FUEL CONTROL.