Nightmare at 20000ish Feet
By 
An off-duty Alaska Airlines pilot taking a ride Sunday in the jump seat of a flight out of Everett attempted to shut down the engines inflight and had to be subdued, the pilot is heard saying in a recording of the exchange with air traffic controllers.
Horizon Air flight 2059 from Everett to San Francisco diverted to Portland where it landed safely, and the Alaska Airlines pilot was arrested.
“I’ll just give you a heads-up. We’ve got the guy that tried to shut the engines down out of the cockpit,” the pilot told Portland air traffic control in a calm voice. “It doesn’t seem like he’s causing any issue at the back. I think he’s subdued.”
“Other than that, we want law enforcement as soon as we get on the ground and parked,” the pilot is heard saying in a recording of the exchange with air traffic controllers.
This was not previously covered on my List of Reasons to Be Terrified of Air Travel.