This is the best summary I could come up with:

Some recently manufactured Boeing and Airbus jets have components made from titanium that was sold using fake documentation verifying the material’s authenticity, according to a supplier for the plane makers, raising concerns about the structural integrity of those airliners.

The planes that included components made with the material were built between 2019 and 2023, among them some Boeing 737 Max and 787 Dreamliner airliners as well as Airbus A220 jets, according to three people familiar with the matter who spoke on the condition of anonymity because they were not authorized to speak publicly.

Spirit is trying to determine where the titanium came from, whether it meets proper standards despite its phony documentation, and whether the parts made from the material are structurally sound enough to hold up through the projected life spans of the jets, company officials said.

“Numerous tests have been performed on parts coming from the same source of supply,” an Airbus spokeswoman said in a statement, adding, “The safety and quality of our aircraft are our most important priorities, and we are working in close collaboration with our supplier.”

“However, the agency will investigate further the root cause of the document traceability issue and continues to monitor closely any new developments that could lead to a potential unsafe condition in the fleet,” the statement said.

The problem illustrates the complex global supply chain used in producing modern jetliners, and the story of what appears to have gone wrong involves companies in China, Italy, Turkey and the United States.

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