The Shuttle has a screw loose?

 Dunno.  But this might be a valid use for RFID – stick a chip on every bolt and anytime you suspect you have something missing, have HAL run a quick inventory.

It would also be pretty useful for determining all of the right parts are in the right place!


Engineers are concerned because they don’t know what the object is or whether it’s a crucial piece of the shuttle.

Source: Shuttle landing delayed due to mystery object – Human Spaceflight –