What was found
DURING VECTOR FOR ILS APPROACH 200KTS 3000 SMELLED DIRTY SOCKS DESELECTED LEFT PACK CONSOLTED ABNORMEL PROCEDURES ODOR DISSIPADED WITH PACK 1 OFF-PERFROMED TSM 05-50-00-810-831-A, CONFIRMED SMELL ONLY FROM PACK#1, PACK #2 OPS CJ GOOD. REF. LP# 3634051-2 FOR DEFERRAL. A/C OK FOR SERVICE. DESCRIPTION OF ODOR/FUMES: DIRTY SOCK SMELL, PERSISTENT. APPARENT CABIN SOURCE: CABIN AIR SUPPLY VENTS, FLIGHT DECK. NO VISIBILE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.