As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER REPORTED BURNING ODOR IN THE CABIN DURING FLIGHT. AFTER LANDING, CREW NOTED LOWER FORWARD RT SIDE WALL AND FOLDING TABLE WERE HOT TO THE TOUCH. MX FOUND HEATER DUCT TO BE CONTAMINATED WITH CARBONATED DRINK FROM PASSENGER SPILL. THE DUCT WAS CLEANED.