A new one, Santiago Paredes. “He said he would see hundreds of defects in parts on a regular basis, even earning the nickname ‘showstopper’ from higher-ups for how frequently he slowed production due to his inspections.” He told CBS News and the BBC that he wasn’t surprised when missing door bolts led to an entire 737 Max door plug blowing out of an Alaska Airlines flight midair in January.

After Paredes complained that Spirit management changed the defect protocol to encourage fewer reports, he said he was demoted.