As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANTS REPORTED SMOKE AND SMALL FIRE IN THE AFT LAVATORY AND ODOR OF CIGARETTES (L4). USED PROTECTIVE BREATHING EQUIPMENT AND 1 FIRE EXTINGUISHER. REPLACED PBE AND FIRE EXTINGUISHER REF AMM 25-64-00 & 26-26-01. INSPECTED LAVATORY NO DAMAGE FOUND. LAVATORY TRASH CAN EXTINGUISHER NOT DISCHARGED. LAVATORY OK FOR SERVICE.