Boeing CEO Dave Calhoun followed by Boeing Chief Engineer and Executive Vice President of Engineering, Test & Technology Howard McKenzie arrive to testify before the Senate Homeland Security and Governmental Affairs Subcommittee on Investigations to answer to lawmakers about troubles at the aircraft manufacturer since a panel blew out of a Boeing 737 Max during an Alaska Airlines flight in January, at the Capitol in Washington, Tuesday, June 18, 2024. (AP Photo/Manuel Balce Ceneta)