Question

In a Reliability-Centered Maintenance program, what is the specific technical difference between a &#x27;functional failure&#x27; and a &#x27;potential failure&#x27; when analyzing a critical pump assembly?

Accepted Answer

In a Reliability-Centered Maintenance program, a functional failure occurs when the equipment is no longer capable of performing its required duty to the specified standard, such as a pump assembly stopping entirely or failing to reach the minimum flow rate required by the system. In contrast, a potential failure is an identifiable physical condition that indicates a functional failure is about to happen, serving as a warning sign before the asset actually stops working. For example, if a pump begins to vibrate excessively or make an unusual grinding noise due to bearing wear, these indicators are potential failures because the pump is still pumping fluid, but the condition signals that a total breakdown is imminent. By identifying the potential failure during the P-F interval, which is the time between when a defect is first detectable and when it progresses to a functional failure, maintenance teams can intervene to prevent the catastrophic consequences of a complete functional failure.

In a Reliability-Centered Maintenance program, what is the specific technical difference between a 'functional failure' and a 'potential failure' when analyzing a critical pump assembly?

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In a Reliability-Centered Maintenance program, what is the specific technical difference between a 'functional failure' and a 'potential failure' when analyzing a critical pump assembly?

Community Answers