The US aviation regulator is ordering inspections for certain Boeing 787 airplanes. This is because some seat track parts might have been made with the wrong type of titanium.
Why it matters
Aviation parts are supposed to be made with specific materials for safety. If the wrong metal is used, it can affect how strong the part is, especially under stress. This order means airlines must now verify the material quality of these specific parts on their planes.
The signal
Watch for how many planes are found with incorrect materials and if this leads to broader investigations into Boeing's supply chain quality control.