As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) (AC RETURNED TO THE FIELD DUE TO SMOKE TOILET WARNING. THERE WAS A HAZE IN THE CABIN. THEY DECLARED AN EMERGENCY) FOUND THAT THE RT PACK WAS SMOKING UP THE CABIN. DEFERRED THE RT PACK. ADDITIONAL INFORMATION REQUESTED TO THE FSR, AC STILL UNDER MMEL (TC NR 20080102007)