As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE CARGO WARNING MESSAGE, MESSAGE CLEARED AFTER CARGO BOTTLES WERE DISCHARGED. AFTER LANDING FIRE CREWS CHECKED THE CARGO COMPARTMENT. THERE WAS NO EVIDENCE OF SMOKE OR FIRE. RAN ACFT WITH CREW, OPERATED SYSTEMS. NO EVIDENCE OF SMOKE DETECTED. REPLACED CARGO SMOKE DETECTORS. GROUND OPS CHECKS, GOOD IAW AMM.