As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON CLIMB AT FL 180, VISIBLE SMOKE IN CABIN COMPARTMENT AND "SMOKE TOILET" MESSAGE ON ED1. FLIGHT ABORTED, ACFT LANDED AT ORIGIN AIRPORT. MX FOUND LT NR 1 CARBON SEAL LEAKING. LT NR 1 CARBON SEAL REPLACED IAW AMM 72-20-00-000/400-802. CARBON SEAL ELEMENT 6047T63P04 N/A NOT KNOWN 20762:37/17595.