Procured Component Nonconforming with Design Criteria

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Type:  Lessons Learned

Publisher:  Washington River Protection Solutions, Hanford Site (WRPS)

Published As:  Public


Topics:  Engineering, Operations, Management Systems, Quality Assurance

Issues affecting operability of safety systems must be addressed via a formal process that ensures timely resolution and assurance that the system remains capable of performing its safety function. Delay in performance of a formal Operability Evaluation (OE) to verify material specifications for Hose-in-Hose Transfer Line (HIHTL) components resulted in continued operations with suspect safety significant components in service and the potential for interrupted service.

Once a condition is identified that brings into question the operability of any safety system that the plant relies on to be operable, address the issue formally, quickly, and from both an Operations and Engineering perspective. Failure to consider how technical issues can affect operations only serves to exacerbate the problem.

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