What was found
FUME EVENT AFT GALLEY CLIMING THROUGH FL 270-PERFORMED TI 2100-2002-CEO. DURING TI FOUND APU OVER SERVICED. DRAINED APU TO PROPER LEVEL PER AMM 49-90-00. PERFORMED PACK 1+2 BURN OUT PER AMM 21-00-00. REF LOG PAGE 3290424-02 FOR REMOVE AND REPLACE RECIRCULATION FILTER CARTRIDGES PRE AMM 21-21-41. ISOLATED PACKS 1+2 VIA ENG 1 BLEED, ENG 2 BLEED, AND APU BLEED PER AMM 21-00-00. NO FUME OR ODORS AT THIS TIME. AIRCRAFT OK FOR SERVICE. NO FURTHER DEFECTS NOTED.