When the crash occurred, within the first two? days, I remember reading a newspaper report that the Cleaner responsible for clearing the runways of foreign objects, had not done so before the Concorde takeoff, as there was a union meeting in the canteen which he had gone to instead.
Has that ever been substantiated, I do appreciate that even if found to be true, it would have no bearing on any aspect of the investigation or subsequent blame, for reasons of national security.
