What was found
IN CRUISE FLIGHT, FA REPORTED STRONG ODOR IN AFT CABIN, DESCRIBED DIRTY SOCKS SMELL IN AREA OF ROW 30, AIRCRAFT LEFT, WE PERFORMED ELIMINATION OF ODOR/ FUMES PROCEDURE PACK 2 OFF. FA REPORTED ODOR DID EVENTUALLY DESSIPATE. DESCRIPTION OF ODOR: PERSISTENT, DIRTY SOCKS SMELL. APPARENT CABIN SOURCE: UNKNOWN. AFT CABIN. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.-PERFORMED INSPECTION OF FUMES EVENT IAW TSM 05-50-00-810-831-A. THE POSSIBLE SOURCE WAS MISCELLANEOUS - TYPE 10. PRECAUTIONARY PERFORMED LEVEL A DECONTAMINATION OF THE ECS IAW AMM TASK 21-00-00-615-802-A. NO FAULTS OR ODORS FOUND. MOC # 119255.