Tue, 03/12/2024 - 01:19 Tech Insider The Spirit AeroSystems logo is pictured on an unpainted 737 fuselage as Boeing's 737 factory teams hold the first day of a "Quality Stand Down" for the 737 program at Boeing's factory in Renton, Washington on January 25, 2024.JASON REDMOND/AFP via Getty Images Tags Transportation, Law, spirit-aerosystems, Boeing, 737-max-9, federal-aviation-administration Source The FAA found staff at Boeing's supplier using liquid Dawn soap as lubricant fo…