As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER ONE ENGINE FIRE WARNING A-LOOP SHOWS INTERMITTENT FAULT. TRANSFERRED TO DMI NUMBER 250 IN ACCORDANCE WITH MEL 26-1 CATAGORY C PLACARDS INSTALLED. CLEANED FIRE LOOP CONNECTORS ON ENGINE, OPS CHECKS GOOD IAW 26-12-00. THIS CLEARS DMI 250 PLACARDS REMOVED.