here. >> reporter: there are antennas on various parts of the plane intended to beam down vital information about the flight. all stopped communicating with the ground. the strongest language yet from malaysian authorities suggesting that this is no accident. it appears to be deliberate. all of this after the mntsb and faa say it was from the west side and not the east. takeoff, 12:41 a.m. local time last saturday. flight 370 headed north to beijing. but then two communication systems stop working within minutes of each other. and investigators now believe that someone almost surely turned them off. at 1:07 a.m. near the east coast of malaysia the system stops transmitting information about the plane's operating condition. and that was before the last