As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE PROTECTION SYSTEM NR 3 DETECTOR CIRCUIT GROUND ON CIRCUIT BREAKER P6-3 PANEL LIGHT ILLUMINATED. PERFORMED FIRE DETECTION TEST IAW B-727 M/M CHAPTER 26-11-001, AND VISUALLY INSPECTED LOOP. NO FAULTS NOTED. OPS CHECKED NORMAL. LIGHT DID NOT ILLUMINATE.