re excess shuttle criticism was re shuttle defects bizarre dc in article stephens ngis stephens geod emr ca dave stephenson writes had and went on to mention that in aviation if you are found with an adjustable spanner in your tool box you can be fired an adjustable spanner by trying to fit all nuts fits none of them properly and so damages all of them in the demanding environment of the air the adjustable wrench is rightly considered a lethal instrument dave what i recall from air craft maintence torqque and safety wires or cotters were more important then if some bolt face were nicked up if it was in bad shape you replaced it with another aircraft grade bolt i can see adjustable spanners eating up profit but lives pat
