Interesting question. Does the method of shooting it down have to be by a bullet/missile/laser/etc? i.e. an independent weapon?

What about if a US plane swipes a Chinese plane and the plane goes down? What if they intentionally fly in front of or near it to cause damage or a crash with air pressure or afterburner flames?

What if they use electronic jamming/interference methods which cause the aircraft to crash?

@StrayClimb I would say it needs to be an independent weapon as I specified "shoot down" in the title.