Sources of Failures

The Approximate distribution of the inherent causes of machinery failures in Industrial Plants. 

70% to 90% of the failures –> latent design errors (usually systemic errors)

50% to 75% of the failures –> Operational errors

50% to 70% of the failures –> Maintenance errors

10% to 30% of the failures –> Abnormal environmental stress

1% to 5%   of the failures  –> Wear Out

Though these figures represent the distribution of causes of machinery failures, I suspect the same distribution holds true for any other system like Organizations.


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