As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3222 THE FLIGHT ATTENDANT REPORTED THE GALLEY FIRE DETECTION HAD NO GREEN LIGHT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE LAVATORY SMOKE DETECTOR IAW EMB 140 MM 26-14-01. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.