As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOR FLIGHT 3318 DURING FIRE TEST THE BAGGAGE SMOKE EXTINGUISHER BUTTON DID NOT ILLUMINATE NOR PRESENT ON EICAS. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE FORWARD BAGGAGE SMOKE DETECTOR IAW AMM 26-15-01. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.