As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5730, IAH TO BTR. DURING DESCENT AT FL230 THE FLIGHT CREW RECEIVED A SMOKE CARGO MESSAGE AND AURAL WARNING ON EICAS. THE QRH WAS FOLLOWED AND THE AIRCRAFT LANDED WITH OUT INCIDENT IN BTR. THERE WAS NO SMOKE OR ODOR REPORTED. MAINTENANCE INSPECTED THE CARGO COMPARTMENT WITH NO SIGNS OF SMOKE OR FIRE FOUND AND TROUBLESHOT THE SYSTEM AND FOUND THAT BOTH CARGO SMOKE DETECTORS WOULD NOT TEST. BOTH SMOKE DETECTORS WERE REPLACED AND THE SYSTEM OPS CHECKED GOOD.