Joshua Dean, a former quality auditor at Boeing supplier Spirit AeroSystems, has died at the age of 45. Dean’s death, attributed to a sudden and aggressive infection, follows the death of another Boeing whistleblower, John Barnett, who reportedly died by suicide two months ago. Dean raised concerns about Spirit leadership potentially ignoring critical manufacturing flaws in Boeing’s 737 MAX planes. He documented his observations, including improperly drilled holes in the aft pressure bulkhead, a crucial component for maintaining cabin pressure.