As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE 'ENG 3 FIRE LP B' EICAS STATUS MSG DISPLAYED. ENG 3 FIRE LOOP-B FIRE OR FAULT OUTPUT. *S/D* FOUND HIGH RESISTANCE LOWER AFT FIRE LOOP AND SHORT IN HARNESS. REPLACED LWR AFT FIRE LOOP, REPAIRED WIRE IN WIRE HARNESS, OP CHECKED GOOD. AC OK FOR SERVICE.