Either that or interdiction of a major false flag operation. Note that Alaska Air has huge presence at SEATAC airport currently controlled by CCP (reportedly). Proximity might indicate an attempt by Deep State via their Chinese "partners" to create a major disaster using AA as the vector.

This is a common thing that the Chinese did via CCP agents placed inside Boeing (mfg ops based in same area) to setup their ability to crash planes and drive down the stock so they could buy it up and take effective control of that CORP.