As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG 2 FIRE LOOP A FAULT. ACCOMPLISHED FIRE TEST FOR NR 2 ENG PER MM, TESTED GOOD.", ACCOMPLISHED HAND OVER HAND CHECK OF ALL DETECTORS AND WIRING. SHOOK OUT HARNESSES. CHECKED LOOP RESISTANCE FROM FDU AND FOUND NORMAL. REPLACED BOTH FWC'S REF AMM. ACCOMPLISHED AFS AND LAND TEST. IAW AMM 22-96-00-710-001 AND AMM 22-97-00-710-001. TAXIED AIRCRAFT AROUND AT MANY POWER LEVELS, UNABLE TO MAKE FAIL. CHECKED OK.