As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAV SMOKE ALARM WENT OFF FOR A FEW SECONDS NO SMOKE OR ODOR IN LAV-C/A-FLIGHT CREW PLACARDED PER MEL 2602 AUTH040019DMC MOC 135181 M PROC C/W. PERFORMED LAV SMOKE DET SYS OPC IAW EMB-140 AMM 26-14-00. OPC GOOD. NO FURTHER DEFECTS NOTED. MEL 26-2 RESTORED