> This is pretty common in industries like this. In the aviation industry I remember reading an account of the Space Shuttle Columbia accident investigation, w

> This is pretty common in industries like this. In the aviation industry I remember reading an account of the Space Shuttle Columbia accident investigation, where it was stated the investigation was hampered by the lack of serial numbers on some components, such as the astronauts' chairs. This made it hard to reconstruct the breakup sequence from the geographical distribution of the debris.