What Happens When You Put Android or iPhone in Flight Mode If this happens repeatedly and at a bigger level due to multiple cellular devices, it increases the possibility of flight crew missing or even misunderstand critical radio calls from Air Traffic Controllers on the ground.
The actual reason for asking passengers to switch their phones into Airplane or Flight Mode during takeoff and landing is to prevent passenger cell phone signals from interfering with cellular networks on the ground.Īs the Airplane is going up in air and travelling quickly, passenger cell phone signals can bounce off multiple towers on the ground, causing interference and network congestion.