NTSB : A commuter airliner that crashed Thursday in upstate New York , killing 50 people , underwent violent pitching and rolling seconds before impact , with passengers experiencing twice the normal force of gravity , a federal investigator said Sunday . People aboard experienced twice the normal gravitational force before crash . New York rolled past the vertical point before it crashed into home , NTSB official says . Saturday 's crash in upstate Plane killed all one aboard plane , one in house . Plane 's de-icing system was turned on five seconds after takeoff , NTSB says .
NTSB : People aboard experienced twice the normal gravitational force before crash . New York rolled past the vertical point before it crashed into home , NTSB official says . Saturday 's crash in upstate Plane killed all one aboard plane , one in house . Plane 's de-icing system was turned on five seconds after takeoff , NTSB says .