“From all the commercial airliners in the air?”
Yep...
Operations will have real-time parameters on every flight, and anything non-normal will immediately trigger an alarm for the dispatcher.
The real problem is satellite access, it will probably require dedicated birds.
This has real implications for large airlines, with the potential to save billions of dollars a year in costs (fuel, engine wear, etc.).
The pilots won’t like the company “looking over their shoulder” though, just like cockpit cameras. Count on it.
ACARS probably satifies the need already. It was very helpful with AF447.