It is easy to put a price on the effects of many human-related maintenance errors. Operators track them all the time. For example, according to one engine manufacturer, 20 to 30 percent of inflight engine shutdowns are caused by maintenance errors and can cost as much as $500,000 per event. The data also shows that 50 percent of flight cancellations due to engine problems are caused by maintenance errors and come with an average cost of $50,000 per cancellation.rnWith that type of information so readily available, it should be easy to put a savings figure to programs that help operators reduce the number of these events. But that is not the case.
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