What was found
DURING SHORT FINAL AFT F/A REPORTED DIRTY SOCK SMELL RETURNED. PACK 2 WAS ACTIVE PACK 1 DEFERRED. DESCRIPTION OF ODOR/FUMES: TEMPORARY, DIRTY SOCKS SMELL. APPARENT CABIN SOURCE: CABIN AIR SUPPLY VENTS. AFT CABIN/GALLEY(LAV). NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.-PERFORMED APU COMPARTMENT STEAM CLEANING IAW TC TI 4900-1906.REF TSM 05-50-00.APU VERIFIED NO LEAKS,PER CONDITIONED AC WITH APU & ENG 1 & 2.NO SMELL.ISOLATED PACKS 1&2.NO SMELL NOTED.R/R CARTRIDGE FILTERS IAW AMM 21-21-41.A/C OK FOR SVC IAW AMM 21-26-00,49-00-72-00-00