As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD - INFLIGHT DCA-DFW. THE CREW REPORTED AIRCRAFT HAD A RIGHT ENGINE FIRE INDICATION. EMERGENCY DECLARED, LANDED IAD WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND NUMBER 2 ENGINE COWL ANTI-ICE DUCT BROKEN AND UPPER COWL DAMAGED. REPLACED NUMBER 2 ENGINE UPPER COWL AND ANTI-ICE DUCT.