As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 9587657) FA'S OBSERVED BURNING SMELL IN FIRST CLASS UPON ARRIVAL. PERFORMED GENERAL INSP OF FIRST CLASS AREA GALLEY AREA NO UNSUAL ODOR NOTED. INPS'D ADV MASTER CONTROL UNIT. POWERED & ALL INDICATION GREEN. SUSPECT DOOR HEATER. REPLACED DOOR HEATER ON LOG PAGE 9587660 PER B737 AMM 21-45. RMD& RPLCD RECIRC FILTER PER B737 AMM 21-45.