(Portland, OR) -- The Alaska Airlines pilot who admitted he tried to cut the engines during a flight is expected to be sentenced today. Joe Emmerson forced an emergency landing in Portland. He was sitting in the cockpit's jump seat on a flight between Everett and San Francisco. Emmerson pleaded guilty to a federal charge of interfering with a flight crew in September. He pleaded no contest to state charges of endangering the aircraft and reckless endangerment. He got credit for time served on the state charges. He faces up to 20 years in federal prison.