FORT WORTH, Texas (AP) — American Airlines said Thursday that Doug Parker, who served as CEO for more than eight years before stepping down last year, will retire as chairman on April 30.

The new chairman will be Greg Smith, who spent more than 30 years at Boeing including the last 10 as chief financial officer.

Smith’s duties broadened during his tenure at Boeing, including working on the company’s effort to return the 737 Max jetliner to service after it was grounded worldwide following two deadly crashes. He briefly served as interim CEO after Dennis Muilenburg was ousted in late 2019.

Smith, 56, retired from Boeing in a surprise move in early 2021, then joined American’s board in January 2022.

Parker, 61, was CEO of US Airways when he engineered a 2013 merger that put him and his executive team in charge of American Airlines, which was just emerging from bankruptcy protection.

Parker’s tenure as CEO was mostly a highly profitable period for American, but the airline struggled with more debt than its rivals, even before the pandemic that devastated the U.S. travel industry in early 2020. Also, American’s relations with its labor unions worsened, and the federal government sued to kill a partnership with JetBlue in the New York and Boston. Robert Isom succeeded Parker as CEO last March.

American also announced that longtime board members Ray Robinson and Jim Albaugh will not seek re-election this spring.