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and now, with more searching, I'm less sure that the MAX-10 does not have MCAS.

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The New York Times

Four months before the first deadly crash of Boeing’s 737 MAX, a senior manager approached an executive at the company with concerns that the plane was riddled with production problems and potentially unsafe. That manager, Ed Pierson, plans to tell his story to Congress on Wednesday.

Employees at the Renton factory where the MAX is produced were overworked, exhausted and making mistakes, Pierson said in an interview. A cascade of damaged parts, missing tools and incomplete instructions was preventing planes from being built on time. Executives were pressuring workers to complete planes despite staff shortages and a chaotic factory floor.

“Frankly right now all my internal warning bells are going off,” Pierson said in an email to the head of the 737 program in June 2018 that was reviewed by The New York Times. “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, who is scheduled to testify at a House Transportation Committee hearing on the two 737 MAX crashes, called on Boeing to shut down the MAX production line last year. But the company kept producing planes and did not make major changes in response to his complaints. During the time when Pierson said the Renton facility was in disarray, it built the two planes that crashed and killed a total of 346 people.


Pierson did not raise concerns about the new automated system, known as MCAS, which caused pilots on both doomed flights to lose control. He focused on the potential safety hazards resulting from production problems.

Pierson retired in August 2018, partly because he was uncomfortable with the conditions in the 737 factory. After the first MAX crash in October 2018, he took his concerns to Boeing’s chief executive, Dennis A. Muilenburg, and the company’s board. Boeing lawyers, including its general counsel, spoke with Pierson about his complaints, according to Pierson and documents reviewed by The Times. But Pierson said the company did nothing in response. The MAX has been grounded since March, shortly after the second deadly crash.

Pierson believes that the production problems may have played a role in the crashes. In both accidents, MCAS was triggered when a vane installed on the plane’s fuselage malfunctioned.

“It doesn’t make sense that new airplanes are having these kinds of problems so early in their lives,” he said.

Boeing disputed the notion of any connection between the production problems and the crashes.

“The suggestion by Mr. Pierson of a link between his concerns and the recent MAX accidents is completely unfounded,” a Boeing spokesman, Gordon Johndroe, said in a statement. “None of the authorities investigating these accidents have found that production conditions in the 737 factory contributed in any way to these accidents.”

In the interview, Pierson also identified 13 instances, besides the crashes, in which newly produced MAX jets had safety incidents, including engine shutdowns and problems with hydraulics.

“Boeing is deeply committed to encouraging its employees to raise issues — particularly those that might involve safety or quality — and provides several internal avenues for employees to do so,” Johndroe said. “Mr. Pierson did the right thing by elevating his concerns.”

Pierson described a chaotic factory that was scrambling to produce the 737 MAX despite mounting problems. By early 2018, he said, Boeing had a significant backlog in its production of 737 planes. Delays became 10 times more common, he said, and fewer than 10% of planes were being produced on time.

Despite this, in June 2018 Boeing continued with its plan to increase its production rate to 52 planes per month from 47 per month.

Pierson and his lawyers declined to answer whether he was seeking whistleblower protection or filing a federal whistleblower case. He has hired a prominent whistleblower lawyer, Eric Havian, and could stand to gain monetarily if he pursued such a case.


During this time, Pierson said, a shortage of workers, including mechanics, electricians and technicians, caused the overtime rate at the factory to more than double. Workers were completing jobs out of sequence, leading to additional mistakes. And senior executives at Boeing exacerbated the problems, he added, by berating employees about delays and urging them to work faster.

“What I witnessed firsthand, the chaos and the instability in the factory, is really unsettling to me as someone who’s been around aircraft their entire life,” he said.

Pierson first expressed his concerns to the head of the 737 program, Scott Campbell, in June 2018. Campbell told Pierson that the company was focused on safety but did not acknowledge his suggestion to shut down the production line, a drastic move that would have resulted in serious delays and significant costs to the company.

When Pierson met with Campbell in July 2018, he said, he again urged Boeing to shut down the MAX line. Pierson had spent decades in the Navy before joining Boeing and said he told Campbell that he had seen the military stop exercises over less serious concerns. In response, he claims, Campbell said, “The military isn’t a profit-making organization.”

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