He has been suspended pending an investigation and is receiving medical treatment , the airline said Wednesday . Police are looking into the apparent midair collision of Delta 's captain . Data and voice recorders given to investigators . Federal law : Recorders must tape conversations on flights made since 1991 . The co - pilot 's statement says he would not consider himself a hero .
Police are looking into the apparent midair collision of Delta 's captain . Data and voice recorders given to investigators . Federal law : Recorders must tape conversations on flights made since 1991 . The co - pilot 's statement says he would not consider himself a hero .