05000382/FIN-2012008-01
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Finding | |
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| Title | Failure to Promptly Determine the Operability of the Emergency Diesel Generators |
| Description | The team identified a Green non-cited violation of 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for a failure to follow the Operability Determination Process. Specifically, the licensee failed to determine the operability of the emergency diesel generators immediately upon discovery without delay and in a controlled manner using the best information available in response to NRC Information Notice 2010-04. The licensee completed an evaluation of the information notice that indicated that Waterford 3 was vulnerable and susceptible to the issue, but the licensee failed to issue a condition report as required by their procedure. The failure to initiate a condition report resulted in the licensees failure to perform an operability determination of the emergency diesel generators as required by, EN-OP-104, Operability Determination Process, Revision 6. In the evaluation, the licensee considered the fact that they had an Action Request in their system to add routine thermography inspections within the voltage regulator cabinets to their preventative maintenance program as being adequate. The action request was not completed when the inspection team reviewed the issue. The inspectors questioned whether there was an operability concern for the emergency diesel generators. The licensee recognized their failure to perform an operability determination. They performed a prompt operability determination based on no observed degradation in performance and declared the emergency diesel generators operable. In addition, they plan to conduct the thermography inspections during the next scheduled emergency diesel generator surveillance. This finding was entered into the licensees corrective action program as Condition Report CR-WF3-2012-03761. The failure to promptly perform an operability determination of the emergency diesel generators in response to NRC Information Notice 2010-04 was a performance deficiency. The performance deficiency was more than minor because it was associated with the equipment performance attribute of the Mitigating Systems Cornerstone and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the licensee failed to promptly determine the operability of the diesel generators after obtaining information of a potential condition adverse to quality. In accordance with NRC Inspection Manual Chapter 0609, Attachment 4, Initial Characterization of Findings, the issue was determined to affect the Mitigating Systems Cornerstone. In accordance with NRC Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process (SDP) for Findings at Power, the issue was determined to have very low safety significance (Green) because it was not a deficiency affecting the design or qualification of the system, it did not represent a loss of system or function, and it was a Technical Specification system, but did not represent an actual loss of function of a single train for greater than it allowed outage time. Specifically, the licensee performed an operability determination in response to the inspectors questions and determined the emergency diesel generators were operable based on a review of surveillance data and maintenance records. This finding had a cross-cutting aspect in the problem identification and resolution area, operating experience component, in that the licensee failed to systematically collect, evaluate, and communicate to affected internal stakeholders in a timely manner relevant internal and external operating experience |
| Site: | Waterford  |
|---|---|
| Report | IR 05000382/2012008 Section 4OA2 |
| Date counted | Sep 30, 2012 (2012Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | R Smith M Young D Overland R Kellar R Kumana |
| CCA | P.5, Operating Experience |
| INPO aspect | CL.1 |
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Finding - Waterford - IR 05000382/2012008 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Waterford) @ 2012Q3
Self-Identified List (Waterford)
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