this is. they can send information. they cack. airliners and military aircraft have engine health monitoring systems like this. now, for example, i flew an airplane during flight training that had a rolls-royce engine, the same the company that moves the 777 s engines, and the plane i flew also had an engine health monitoring system that would gather information during flight, and then once we landed the information was looked at by pointers maintainers. here s a picture of the monitoring system. this is on a rolls-royce engine, and this unit senses vibrations to pick up possible problems with engine components. that s one example. now, we don t know if that s the same type of system used on the 777, the missing 777 engines, and other systems on the aircraft have monitoring systems that gather information hour