FILE - In this Nov. 18, 2020 file photo, a worker uses a flashlight to inspect an engine on a Boeing 737 Max 8 built for Southwest Airlines at Renton Municipal Airport in Renton, Wash. A flight attendant for Southwest Airlines lost two teeth when she was attacked by a passenger this weekend, according to her union president, Tuesday, May 25, 2021. (AP Photo/Ted S. Warren, File)