As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE FIRE LOOP B LIGHT ILLUMINATED WITH OAP FIRE DETECTOR LOOP MESSAGE. IAW QRH, PERFORMED LOOP TEST ON SYSTEM A, TESTED NORMAL. COULD NOT DUPLICATE FAULT. TESTED SEVERAL TIMES AND LOOPS INDIVIDUALLY. NO HISTORY. ACFT OK FOR SERVICE.