As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE FIRE DETECTION SYSTEM LOOP 2 FAILED. STATUS MESSAGE 2610231 ACTIVE RO HARD. NO INBD OR FLIGHT DECK EFFECT FAULTS NOTED. RAN ENGINE TO INDUCE FAULT. NO FAULTS NOTED. MAT TEST PASSED IAW FIM 26-11 TASK 810. NO FAULTS OR MESSAGES. OK FOR SERVICE.