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Ageing Aircraft – The Quest for Knowledge

But some aspects of the knowledge that led to a particular design decision are not necessarily on file. They may be contained in informal meeting minutes, records of conversation, scribbles or design sketches, perhaps little more than thoughts which were not considered mature enough at the time for inclusion in formal records. To retrieve such knowledge for future reference requires the people who were actually there at the time, who know what to look for and where to look, who can produce the diary notes and sketches, or who know why a particular idea was not followed through.