If you have ever been on an Aircraft before, You must have heard the pilot instructing everyone to set their mobile and tablet devices to Airplane mode.
Ever wondered what happens if you fail to adhere to this instruction?
, Plane crashes? He.ll NO!
Basically, Airlines do claim that the signals from any cellphone in the plane interferes with the communications in the plane. Pilots do complain of a buzzing sound heard on their headphones. This makes hearing the control tower difficult, most especially if they have some important information to pass along.
Here is what Pilot's had to say about the buzzing sound, view image below
There you have it, its not dangerous but its just simply annoying!