FILE - Boeing employees walk the new Boeing 787-10 Dreamliner down towards the delivery ramp area at the company's facility after conducting its first test flight at Charleston International Airport, March 31, 2017, in North Charleston, S.C. Boeing will be in the spotlight during back-to-back hearings Wednesday, April 17, 2024, as Congress examines allegations of major safety failures at the embattled aircraft manufacturer. (AP Photo/Mic Smith, File)