As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN ODOR EXPERIENCED AT FL 280 IN DESCENT. OVENS AND LIGHTS TURNED OFF. ODOR SUBSIDED BUT STILL LINGERED. *S/D* OVEN UPPER BAFFLE WAS CONTAMINATED WITH MELTED PLASTIC. OVEN WAS REMOVED AND SHIPPED TO THE COMPONENT SHOP. UNIT WAS CLEANED, TESTED AND RETURNED TO SERVICE.