As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSPECTION FOUND THE BAGGAGE SMOKE DETECTOR WILL NOT TEST. THE AIRCRAFT WAS REMOVED FROM SERVICE. REPLACED NR 1 SMOKE DETECTOR (CARGO ) IAW EMB 145 AMM 26-15-01. THE OPERATIONAL TEST WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.