Boeing is building planes the way Detroit used to build cars. A crash course on manufacturing ethics won’t fix the Boeing wagon.
Every structural bolt or nut in a plane or motor vehicle has a prescribed tightness. While it is permissible to initially tighten with an ordinary ratchet wrench, it is mandatory to use a torque wrench for final tightening. This tool has an integral measuring function to precisely reach the prescribed tightness.
Even the Detroit comparison pales. When is the last time a door fell off a Chevy? Combined with other reports involving loose bolts, it reeks of the semi-intentional, of willful recklessness — or drug use.