As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE TOILET CAS MESSAGE INFLIGHT, SMOKE VISIBLE COMPLIED WITH QRH. SMOKE SOURCE APPEARED TO BE FROM ACROSS LAV ROW 13, AREA LOWER AREA. (K) AIRCRAFT WAS TROUBLESHOT TO RT ENGINE INTERNAL LEAK. REMOVED AND REPLACED. (VENDOR FINDINGS: CARBON SEAL PRESSURIZATION VALVE BODY CRACKED, LRU). (A)