As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A RIGHT HAND ENGINE FIRE DETECT WARNING LIGHT ILLUMINATED, DURING THE TAXI FOR TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND RESECURED THE RIGHT HAND ENGINE FIRE LOOP SENSOR WIRE CANNON PLUG, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 26-11-01. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.