As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CHA - ON DEPARTURE, RIGHT ENGINE FIRE WARNING CAME ON. THE FLIGHT CREW PERFORMED THE EMERGENCY PROCEDURES AND THE AIRCRAFT RETURNED TO CHA. AFTER TROUBLESHOOTING, THE MECHANIC FOUND A BAD FIRE WARNING LOOP. THE LOOP WAS REMOVED AND REPLACED. THE SYSTEM CHECKED GOOD IAW THE FOKKER MM.