As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: SMOKE LAVATORY SMOKE ELECTRONIC CENTRALIZED AIRCRAFT MONITOR EN-ROUTE FOR APPROXIMATELY 5 SECONDS. MID CABIN LAVATORY INSPECTED BY FLIGHT ATTENDANT. NO SMOKE OR ABNORMAL SMELL REPORTED. ACCOMPLISHED. SMOKE DETECTOR CONTROL UNIT TEST AND RESET PER AMM 26-16-00. NO FAULT AT THIS TIME.