M9 Types of Errors in Maintenance Tasks

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Types of Errors in Maintenance Tasks

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Understanding different types of errors such as slips, lapses, mistakes, and violations in maintenance tasks.

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Slips

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Actions not carried out as intended or planned, like transposing digits or mixing up steps.

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Examples of Mistakes

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Using incorrect procedures due to faulty reasoning.

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Mistakes can include errors of judgment.

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An example is selecting the wrong bolts when fitting an aircraft windscreen.

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Errors committed by flight crew, air traffic controllers, and maintenance engineers.

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These are examples of operator-induced errors.

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Constant errors follow a consistent, systematic pattern.

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Constant errors can be predicted and controlled.

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Irreversible errors usually do not allow for recovery.

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An example is over-pressurizing a fuselage, causing it to rupture.

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Errors can be categorized as reversible or irreversible.

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This categorization helps in understanding potential recovery.

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Action Slips in skill-based behaviours

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Actions not carried out as intended due to distraction

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Knowledge-based performance errors are linked to incomplete or incorrect knowledge.

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These errors occur when individuals misinterpret situations due to lack of knowledge.