As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED SMOKE TOILET AMBER MESSAGE IN FLIGHT AT 1,000 FT AGL. MESSAGE EXTINGUISHED AT 5,000 FT AGL 3 TO 4 MINUTES LATER. CREW DECLARED AN EMERGENCY, RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND SMELLED ENGINE OIL ODOR ON ACFT. MAINTENANCE R & R LT ACM WATER SEPARATOR COALESCER AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.