As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4318 - DURING FINAL APPROACH INTO ATL FROM CAK, THE CREW RECEIVED A SMOKE TOILET CAUTION MESSAGE AFTER STARTING THE AUXILIARY POWER UNIT, ACCOMPANIED BY A FUEL SMELL AND SMOKE IN THE CABIN NEAR THE LAVATORY AREA. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED SAFELY IN ATL. MAINTENANCE REMOVED AND REPLACED THE RIGHT AND LEFT COALESCER BAGS ON THE WATER SEPARATOR ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)