Indeed, it appears that they had to test thousands of struts. Most passed but they found one that failed. Microscopic examination showed bad grain structure. They're made by a vendor so it would appear that vendor has a quality control problem.
The delays will be in setting up a QA process to test each individual strut part, as well as eventually testing all vendor-supplied parts. If anyone can do it, SpaceX can. No reason they can't design robot systems to test every part.
The delays will be in setting up a QA process to test each individual strut part, as well as eventually testing all vendor-supplied parts. If anyone can do it, SpaceX can. No reason they can't design robot systems to test every part.