ABSTRACT
An engine assembly plant had an oval assembly line on which were mounted independent and numbered saddles. The saddles were configured in a way to accommodate a V-6 engine case to which other components could be attached. They rotated and revolved as they passed through the various engine assembly and test operations. The data sheet captured the saddle number and the incidence and location of loose bolts in the assembled flywheel. Whenever tools are used in a mechanized assembly operation, they must be inspected or checked at specific intervals to ensure that they are not worn out. An audit is an ideal way to conduct these checks at designated or random times to ensure compliance. A visual inspection of the failing condition and the available characteristics of the flaw will provide significant clues as to the cause of the problem.
