As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOI - CREW RECEIVED A FIRE SYSTEM FAULT STATUS MESSAGE. MAINTENANCE INTERROGATED THE MAINTENANCE DIAGNOSTICS COMPUTER AND FOUND FAULT AS FORWARD SMOKE DETECTOR WORD 352 BIT 20. MAINTENANCE REPLACED THE NR 3 SMOKE DETECTOR IN THE FORWARD CARGO BAY AND THE OPERATIONAL CHECK WAS GOOD. AIRCRAFT RETURNED TO SERVICE.