As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KLAX - NR 4 ENGINE FIRE WARNING INDICATION CAME ON APPROXIMATELY ONE MINUTE FOLLOWING ENGINE SHUT-DOWN DURING TAXI. ENGINE FIRE HANDLE PULLED. ENGINE VISUALLY SCANNED OKAY. REPLACED LOWER FIRE LOOP IAW MM CHAPTER 26. GROUND OPS CHECKS GOOD. (X)