What was found
ELECTRIC SMOKE SMELL, RTFL. AFTER TAKEOFF, F/A REPORTED ELECTRICAL SMELL-CARD BOARD BURNING SMELL IN THE MID CABIN AREA. BUSINESS CLASS AND ECONOMY PLUS SECTIONS. ONCE UTILITY BUSES TURNED OFF, SMELL DISSIPATED. F/A DIRECTED MM TO SMELL FROM MID CABIN GALLEY, UNABLE TO DETECT ANY TYPE OF ELECTRIC ODOR FROM AC CABIN. OPS CHECKED ALL GALLEY OVENS AND HOT PLATES UNABLE TO DUPLICATE SMELL. REMOVED BOTH LEFT AND RIGHT PREFILTERS AND CHARCOAL FILTERS REF 21-25-02. PER TOMC PERFORM HI PWR RUNS WITH BLEEDS ON AND OFF & CHECK FOR BURNING SMELL IN CABIN. ACCOMPLISHED HIGH POWER RUN WITH BLEEDS ON AND BLEEDS OFF ALSO PACKS ON AND OFF. NO SMELLS NOTED.