Boeing 787s might have the wrong titanium in a critical part

US aviation regulators want to inspect certain Boeing 787-9 and 787-10 airplanes. They are looking for pressure deck splice fittings that might have been made with the wrong type of titanium.

Aviation manufacturing relies on precise material specifications. When a supplier uses the wrong material for a critical part, it means the entire supply chain and quality control system failed. This kind of error can lead to structural weaknesses that are hard to detect without specific inspections.