Ed Pierson, a former senior manager at Boeing's 737 Factory in Renton, Washington, raised concerns to his supervisors about the dangerously unstable production environment and risks to the safety of airplanes.
The factory was plagued with overworked employees, chronic part shortages, quality issues, and unrelenting schedule pressure to deliver MAX airplanes.
Ed recommended Boeing leadership shutdown production operations before both crashes, but sadly he was ignored.
After the crashes he implored the leaders of the NTSB, FAA, and DOT to conduct a thorough investigation of the factory and to involve international accident investigators, but was ignored again.
He shared his story with the U.S. Congress. In turn, Congress directed the FAA to conduct a proper investigation.
Instead, the FAA focused on helping Boeing recertify the airplane. In response, Ed conducted his own investigation and linked factory conditions to both crashes. He is determined to shine a light on the truth to help avoid future tragedies.
(Edit: Forgot to mention that I broke Pierson's text wall into paragraphs to make it easier to read.)
source: https://www.edpierson.com/