Boeing quality engineer Sam Salehpour is scheduled to testify before Congress on Wednesday about alleged security flaws. Boeing says the plane is safe and that the company has "full confidence in the 787 Dreamliner." Salehpour said the company hasn't adequately addressed small gaps found in multiple planes.

The allegations have come to light as Boeing continues to reel from the aftermath of a mid-flight panel covering a door space on a newly built 737 Max 9 aircraft that fell off during a crowded Alaska Airlines flight last week. The incident has led Dave Calhoun, Boeing's chief executive, to announce that he is stepping down from his position. The company says the issues raised have been the subject of rigorous engineering examination under the supervision of the FAA. "These claims about the structural integrity of the787 are inaccurate," Boeing said in a statement.