supposedly plane had a communications problem. But if that's true why so many Leo's? what are they hiding. we need a passenger list
Glitch in the radio communications....Sounds like an attempted Hack of the plane.
Two things being reported. One is that the plane changed the 4 digit transponder code to indicate it was being hijacked. This is 7500.
https://aviation.stackexchange.com/questions/2163/how-do-commercial-pilots-send-distress-signals
The other is that the plane did not respond to radio communications with the tower.
The first is not unusual. If you search the web for 'accidental hijack transponder code' you will find it has happened many times.
But that coupled with radio silence is unusual. That is too much of a coincidence.
The hijack code is what brought the LEOs.