When a part fails, the question isn't whether you can find it. It's how many tiers and how many borders stand between you and the answer.
Component manufacturer in one country. Sub-assembly built in a second. Final assembly in a third. Three tiers, three jurisdictions, before the part ever reaches a customer.
A defect surfaces months after delivery. The question every regulator, and every plaintiff's attorney, asks first: which finished units contain it.
Whatever the Tier 1 supplier's own records say, assuming they kept them, assuming they'll share them, assuming nothing was missed in between.
What follows is that scenario, built and running. Not a mockup.
Point the camera at any part's QR code in the Bill of Materials above, or a printed/etched code on a real part carrying the same ID.