The civil aviation department ( cad ) retrieved the digital flight data recorder ( dfdr ) and the cockpit voice recorder ( cvr ) from the wreckage in the aircraft accident at about 5 pm today ( tuesday ) 民航处寻回飞行记录仪一九九九年八月二十四日民航处今日（星期二）约下午五时从肇事客机的残骸内寻回数码飞行记录仪及机舱谈话记录仪。
