As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED, LAV SMOKE WARNING AFTER TAKEOFF FROM NEWARK, CONDITION CLEARED WHEN CIRCUIT BREAKER PULLED PER QRH, WITH SMELL IN THE CABIN. MAINTENANCE REMOVED AND REPLACED LAV SMOKE DETECTOR IAW EMB135 AMM 26-14-01. OPS CHECKED GOOD. NO SMOKE NOTED.