Former Pilot Pleads Guilty After Attempt to Shut Jet Engines Midflight; Cites Mushrooms and Depression

A former commercial pilot has pleaded guilty in federal court after attempting to disable the engines of an Alaska Airlines jet while riding off-duty in the cockpit, authorities said.

Joseph David Emerson admitted in court that he tried to shut off the engines during Alaska Airlines Flight 2059 on Oct. 22, 2023, a flight that was diverted to Portland, Oregon. Prosecutors say Emerson told the operating pilots "I am not okay" before moving toward the aircraft controls. He told police after the incident that he had taken psychedelic mushrooms and had been struggling with depression, according to court filings.

Under a federal plea agreement, prosecutors may recommend a one-year prison sentence, while Emerson's attorneys have indicated they will argue for no additional jail time. Emerson's federal sentencing is scheduled for Nov. 17. In a related state case in Oregon, he pleaded no-contest to reckless endangerment and first-degree endangering an aircraft and was sentenced to 50 days in jail — a term he has already served — as well as five years' probation, 664 hours of community service and $60,659 in restitution.

The October flight originated in Everett, Washington, bound for San Francisco, California, with about 80 passengers and four crew members on board. Court documents and investigators say the episode lasted roughly 90 seconds. One pilot told investigators he wrestled with Emerson until Emerson stopped resisting and was escorted from the cockpit. Flight attendants later reported Emerson saying "I messed everything up" and that he had "tried to kill everybody." According to the filings, Emerson told cabin crew, "You need to cuff me right now or it's going to be bad," and at one point reached for the emergency exit handle during the aircraft's descent.

Multnomah County Deputy District Attorney Eric Pickard called Emerson's actions "reckless, selfish, and criminal," and warned of the potential consequences for the 84 people aboard the flight and their families. In state court filings, prosecutors detailed the personal and public safety risks created by Emerson's conduct.

Emerson spoke in court, saying he had been unable to perceive reality after taking the mushrooms and acknowledging that "that doesn't make this right." He told the court the episode and its aftermath prompted personal changes, saying the experience had made him "a better father, a better husband, a better member of my community," and that he now avoids using alcohol to cope with life.

Court-ordered conditions from the Oregon case require Emerson to undergo assessment for drug and alcohol use, to refrain from using non-prescribed drugs, and to remain at least 25 feet away from operable jets without probation officer permission. He also may perform half of his ordered community service at Clear Skies Ahead, a nonprofit for pilot mental health that he and his wife established following his arrest.

Federal prosecutors charged Emerson with endangering the aircraft, a crime that carries potential prison time. The plea resolves the federal case but leaves room for the government to recommend a one-year sentence under the agreement. Defense attorneys and prosecutors will present sentencing arguments at the Nov. 17 hearing.

The case has prompted attention to mental health and substance use concerns among aviation personnel and the broader public. Emerson's founding of a pilot-focused nonprofit since the incident was noted in court documents, and his mandated assessments and restrictions highlight the legal and public-safety responses applied when substance use and impaired judgment intersect with access to aircraft.

Investigators and prosecutors have described the disruption on the flight as brief but potentially catastrophic, emphasizing the narrow margin between an isolated incident and a much larger disaster. The state-imposed restitution and community service requirements reflect attempts to address harm to passengers and the broader community, while the pending federal sentence will determine whether Emerson faces additional incarceration.

Emerson's case remains a focal point for discussions about screening, substance-use policies and mental-health supports in aviation. Officials in the case have not released additional details about any regulatory or industry responses that may follow from the incident.

Emerson will appear for federal sentencing on Nov. 17, when the court will consider the plea agreement, the state's prior sanctions, the results of any required drug and alcohol assessments, and arguments from both prosecutors and defense counsel regarding an appropriate federal sentence.