"One of the employees at Spirit AeroSystems, which reportedly manufactured the door plug that blew out of an Alaska Airlines flight over Portland, Oregon, allegedly told company officials about an “excessive amount of defects,” according to the federal complaint and corresponding internal corporate documents reviewed by us.

According to the court documents, the employee told a colleague that “he believed it was just a matter of time until a major defect escaped to a customer."

https://jacobin.com/2024/01/alaska-airlines-boeing-parts-malfunction-workers-spirit-aerosystems