As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA REPORTED SMOKE IN FWD GALLEY DURING CRUISE, NO ALARM, NO MESSAGE IN FLIGHT DECK. FA SAID SMOKE WAS COMING OUT OF FWD GALLEY SINK DRAIN AND SMELLED OF PLASTIC BURNING. DECLARED EMERGENCY AND LANDED WITHOUT INCIDENT. R&R FWD DRAIN MAST. NO SIGNS OF PLASTIC SMELL OR SMOKE.