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slash donate. your gift at Marketplace.org. It's shaping up to be a tough day for Boeing again.

For Marketplace, I'm Novasafo in for David Brancaccio.

Boeing is facing allegations from yet another whistleblower.

It's just as senators are preparing to grill the company CEO on Capitol Hill.

David Calhoun is scheduled to testify this afternoon at a Senate hearing.

Marketplace's Nancy Marshall Genser has been following this and joins me now.

Good morning, Nancy.

Good morning.

So who is this new whistleblower and what are his allegations?

His name is Sam Mohawk. He works at a Boeing Max factory overseeing parts that are defective

were not documented properly.

According to multiple reports this morning, Mohawk alleges that Boeing lost track of some of these

parts and some of them may have ended up in new planes.

Boeing says it received documents on this just last night and is quote,

reviewing the claims.

Now this of course is just the latest allegation against Boeing after a door plug panel blew off a plane in January,

two max plane crashes killed more than 300 people about five years ago.

...