What was found
AT TOP OF DECENT, TWO FLIGHT ATTENDANTS REPORTED A BURNING SMELL FROM 2 LT AFT GALLEY OVEN BAYS. IT WAS A BIT INTERMITTENT 1ST FLIGHT ATTENDANT WENT BACK & COULD NOT SMELL IT, PILOTS AFTER LANDING DID NOT SMELL IT. EITHER THE SMELL WAS STRONG & DISTINCT POSSIBLY SWEET & MAY HAVE CONTRIBUTED TO HEADACHES IN BOTH FLIGHT ATTENDANT WHO SMELLED IT. ACCOMPLISHED JC 26L000221001, TROUBLESHOOT CABIN AIR QUALITY IAW MOC. FOUND HEPTA FILTERS DIRTY & AFT GALLEY EXTRACT VENT FILTERS CLOGGED. REPLACED HEPTA FILTERS IAW 21-21-41-401 & GALLEY FILTERS RESTORED AIR CIRCULATION IN AFT GALLEY NO ODOR FOUND AFTER ENGINE & APU RUN.