As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ROLLOUT RECEIVED "MAIN CARGO FIRE" WARNING LASTED MAYBE 2-4 SEC, THEN WENT OUT. PASSENGER OXYGEN WENT ON. REPLACED MAIN DECK SMOKE CONROL PANEL IAW AMM P TO F26-16-30. MAIN DECK CARGO DETECTION. OPS CHECKS NORMAL IAW P TO F AMM 26-16-30, P 501. ACFT RELEASED FOR SERVICE.