Flight be eased bying to . The calls have increased for realtime gps tracking on aircraft like in a car. In the case of cell phones youre looking at tracking using cell fours on groundbased systems. If youre over the ocean you have to use sat light system. This man says its not as simple as installing a device. It means the redesign and certification of planes. They are costly, complex systems. How much do you want to, you know trade off money for what were spending in terms of the fees for security and ship them to aviation safety which is tracking these airplanes. U. S. Regulators are demanding some of these tracking programs. Until then, these unusual scenes could keep happening. Though why this flight left radar and was later found on the sea floor is the first mystery to be solved. They will also try to get their hands on the black box and cockpit audio recorder to find out if it was weather or mechanical failure or Something Else that brought the plane down. Maureen. Thank you, s