As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENG DETECTOR ILLUM AFTER POSITIONING TO A AND TESTING LIGHT STAYED ON AND FOLLOWED BY NR 2 FIRE WARNING LIGHT. THROTTLE TO IDLE ALL INDICATIONS NORMAL AND ALL TESTS NORMAL, THROTTLE IN IDLE FOR DURATION. REPLACED NR 2 ENG FUEL HEAT MANIFOLD.