As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REORTD THAT THEY RECEIVED BRIEF LAVATORY SMOKE WARNING IN FLIGHT DECK. FLIGHT ATTENDANT HEARD WARNING AND STATED THAT CABIN WARNING INDICATIONS WERE OPERATIVE IN FORWARD AND MID CABIN BUT THAT NO WARNING OCCURRED IN AFT CABIN. MAINTENANCE PERFORMED A SATISFACTORY OPERATIONAL CHECK PER AMM 26-17-00 WITH NO DEFECTS NOTED.