As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF, THE CREW NOTED LAV SMOKE WARNING ILLUMINATED. CREW ALSO BELIEVED TO HAVE SMELLED A SLIGHT ODOR IN THE AIRCRAFT AT THAT TIME. THE AIRCRAFT RETURNED TO FIELD AND ON SHORT FINAL APPROCH THE LAV SMOKE WARNING WENT OUT. MAINTENANCE INSPECTED AND PERFORMED FUNCTION CHECKS OF THE LAV SMOKE DETECTION SYSTEM IN ACCORDANCE WITH AIRCRAFT MAINTENANCE MANUAL . OPERATION CHECKS WERE GOOD. AIRCRAFT RETURNED TO SERVICE.