As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT FA REPORTS BURNING SMELL FROM AFT GALLEY DEBRIEFED FLIGHT ATTENDANT SAID SMELL WAS COMING FROM OVERHEAD. VENT AS THE CABIN STARTED TO GET WARM PILOT REPORTED THAT HE HAD ADJUSTED THE HEAT AROUND THE SAME TIME OPERATED PACKS HALF HOUR NO BURNING SMELL OPERATED ALL OVENS CLEANED. NO SMELL.. REF AMM 21-21-00