The outgoing chief executive of Boeing is set to address the U.S. Senate to respond to whistleblower allegations about safety issues at the aircraft manufacturing giant.

CEO Dave Calhoun is scheduled to appear on June 18 after four whistleblowers testified in April regarding severe production issues with the 737 MAX, the 787 Dreamliner, and the 777 models.

Senator Richard Blumenthal, who heads the Permanent Subcommittee on Investigations, stated that Calhoun’s appearance is crucial to addressing Boeing's shortcomings and restoring public confidence.

“Five years ago, Boeing promised to revamp its safety practices and culture, but those promises remain unfulfilled. The American public deserves an explanation,” Blumenthal stated on Wednesday.

“Years of prioritizing profits over safety, stock prices over quality, and production speed over responsibility have led to this moment of scrutiny for Boeing, and their empty pledges can no longer be tolerated,” he added.

Boeing expressed its readiness to "share the measures we have implemented, and will continue to implement, to enhance safety and quality and ensure that commercial air travel remains the safest mode of transportation."

“We are committed to fostering a culture of accountability and transparency while upholding the highest safety and quality standards,” a company spokesperson affirmed.

The firm has been under intense scrutiny following a close-call incident in January involving an Alaska Airlines 737 MAX that lost part of its fuselage mid-flight.

This event reignited concerns about Boeing’s safety practices, especially after two fatal crashes in 2018 and 2019 that claimed 346 lives.

Last month, the U.S. Justice Department accused Boeing of violating the terms of a 2021 agreement that shielded the company from criminal prosecution related to the 737 MAX crashes.

Boeing, which is also under a criminal investigation for the January midair blowout, stated it believes it has adhered to the deferred prosecution agreement's requirements.

Calhoun, who became CEO in 2020, announced in March that he would be stepping down as part of an extensive overhaul in the company’s leadership.