What was found
FA'S REPORT DIRTY SOCK SMELL DURING DECENT, WENT AWAY ON GROUND , L3-R3 SMELL STILL THERE. DESCRIPTION OF ODOR/FUMES: PERSISTENT, DIRTY SOCKS SMELL. APPARENT CABIN SOURCE: CABIN AIR SUPPLY VENTS. AFT CABIN,GALLEY, LAV & MID CABIN. NO VISIBLE SMOKE OR HAZE. NO MEDICAL ATTENTION REQUIRED.-PERFORMED GENERAL VISUAL INSPECTION OF APU . NO DEFECTS NOTED. RAN PACKS 1 & 2 WITH APU . NO SMELL NOTED. RAN ENGINE IDLE RUN WITH PACKS 1 & 2 . REF AMM 71-00-00. NO SMELL NOTED AT THIS TIME REF TSM 05-50-00-810-831-A. ACFT OK FOR SERVICE.