Whistleblower: I warned Boeing about 737 issues before crashes

• Pierson claims a drive to increase 737 production at the plant sparked a "factory in chaos" and risked tired workers making dangerous mistakes, per NBC.
• "All my internal warning bells are going off," Pierson wrote to Scott Campbell, the manager of the 737 Max program in June 2018, the New York Times notes.
• "And for the first time in my life, I’m sorry to say that I’m hesitant about putting my family on a Boeing airplane," Pierson added.

What they're saying: In a statement, Boeing said: "Although Mr. Pierson did not provide specific information or detail about any particular defect or quality issue, Boeing took his concerns about 737 production disruption seriously."

The big picture: A 737 Max made at the Renton plant went down near Indonesia in October 2018. Another 737 Max crashed in Ethiopia in March.

• No conclusive evidence shows that the problems Pierson reported are linked to the crashes.
• Max 737s have been grounded while investigations continue.

Go deeper: Boeing exec exits as 737 MAX crisis continues