What was found
SUSPECTED FUME EVENT IN CRUISE W/ ANTI-ICE ON, TURNED OFF AND PACK 1 SMELL DISSIPATED, CYCLED PACK AND SMELL CAME BACK. LEFT PACK OFF REST OF FLIGHT. DESCRIPTION OF ODOR/FUMES: TEMPORARY, DIRTY SOCKS/ ACRID/ PUNGENT/ IRRITATING/ BURNING EYE SMELL. APPARENT CABIN SOURCE: CABIN AIR SUPPLY VENTS. FLIGHT DECK. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.-PERFORMED IDENT. OF CAUSE OF CABIN ODOR IAW TSM 05-50-00-810-831-A. T/S INFORMATION DETERMINED TYPE 5 (PACK 1), ACCOMPLISHED STEPS INCLUDING LEVEL A DECONTAMINATION OF ECS IAW 21-00-00-615-802-A. ODOR NO LONGER PRESENT. A/C OK FOR SERVICE.