As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX INFLIGHT T253/19 SEP. CREW REPORTED WW FIRE WARNING INDICATION WITH HORN. ACCOMPLISHED CHECKLIST AND INDICATION WENT OUT. RETURNED TO LAX AND LANDED WITHOUT INCIDENT. INSPECTED ACFT WITH NO FAULTS OR DAMAGE NOTED. SYSTEM CHECKED NORMAL OPS.