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/LAV WARNING IN FLIGHT. THE FLIGHT ATTENDANTS SAID THE ORANGE LIGHT WAS ILLUMINATED OUTSIDE THE AFT LAV NO INDICATIONS OF SMOKE IN THE LAV WERE FOUND. RESET SMOKE DETECTION CONTROL UNIT TEST NORMAL PER 26-17-00.