NRF - glad you're still with us, I only raised the Kegworth accident as an example of there being multiple contributary factors. Your extra detail only really re-inforces the point.
I've checked on the Type Certificate, I think that because of the multi-national nature of Concorde, DGAC holds the TC for the Air-France jets, and CAA for the BA jets. DGAC acted first (unsurprisingly), then CAA did the same a few weeks later. I don't think legally the CAA were bound to act, but morally and technically they were.
Lu, I don't quite agree with your statement of the certifying philosophy. Nominally unrelated events do have to be taken into account - such as multiple bridstrikes or airframe and system damage due to a fan or propeller desintegration. I don't see why airframe damage due to a tyre failure should be treated differently to airframe damage due to a compressor disk exploding?
G