April 2007: “A 43-foot-long magnet for the world’s largest particle collider broke “with a loud bang and a cloud of dust’’ during a high-pressure test,...”
“Fermilab said the failure that broke a glass cloth-epoxy laminate support resulted from a test of “asymmetric’’ or irregular force. Subsequent testing showed that the support was inadequate to withstand the longitudinal forces, which had been overlooked in the design process.” “We are dumbfounded that we missed some very simple balance of forces.’’
http://www.livescience.com/technology/070403_cern_prob.html
(Wonder what else they “overlooked in the design process”?)