As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MOMENTARY MASTER WARNING FOR CARGO FORWARD SMOKE AND CARGO AFT SMOKE WARNING WENT OUT AFTER 3-5 SECONDS. REMOVED FROM SERVICE. COMPLIED WITH AMM 26-00-00-700-801-A. FIRE PROTECTION SYSTEM TEST, NO FAULT NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.