As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OUT OF FL 180, ENGINE NR 1 FIRE DETECTION LIGHT ILLUMINATED. RAN CHECKLIST, FAULT LIGHT EXTINGUISHED. MX CHECKED THE SYS IAW THE AMM, NO DISCREPANCIES NOTED. A VISUAL INSPECTION OF THE NR 1 FIRE LOOP WAS ACCOMPLISHED, NO DISCREPANCIES WERE FOUND. THE SYS ADJUSTMENT AND TEST IAW THE AMM WAS PERFORMED AND THE FUNCTION WAS NORMAL.