As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND SMOKE IN CABIN. SMOKE IN CABIN CAUSED BY A BURNED COFFEE PACK. COFFEE PACKET WAS ON THE DUAL COFFEE WARMER IN FLIGHT AND WAS SMOLDERING. CLEANED AREA AND OPERATED WARMING PLATES FOR 30 MINUTES. EVERYTHING CHECKED NORMAL AND BACK PLATE WAS COOL.