As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3300 THE FLIGHT ATTENDANT REPORTED THE LAV SMOKE DETECTOR APPEARED TO BE INOPERABLE. (NO GREEN LIGHT). THE ITEM DEF PER MEL 26-2 AUTH 030850DM-C. REMOVED AND REPLACED LAV SMOKE DETECTOR SENSOR IAW EMB 145 AMM 26-14-01. RESTORED MEL. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.