As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENGINE FIRE LOOP A AND B STATUS MESSAGES. INSPECTED THE ENGINE FIRE LOOPS, FOUND SILVER MIGRATION. CLEANED FIRE LOOP CERAMIC HEADERS IAW CMM 26-10-65. PERFORMED RESISTANCE CHECK, NO DEFECTS NOTED. PERFORMED SYSTEM OPERATIONS CHECK IAW MM 26-11-00. NO DEFECTS NOTED.