05000354/FIN-2013005-03
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Finding | |
|---|---|
| Title | Inadequate Evaluation of Containment Vent Functionality |
| Description | The inspectors identified a finding of very low safety significance (Green) for PSEGs failure to ensure evaluations addressed identified issues in accordance with PSEG procedure LS-AA-125, Corrective Action Program. Specifically, PSEG failed to adequately assess the functionality of the containment vent following NRC identification of inadequate maintenance practices for an instrument air check valve (1KBV-300) and that design calculation H-1-KB-MDC-1007, Backup Pneumatic Supply for 1GSHV-4964 and 1GSHV-11541 Valves, did not account for leakage through the valve. PSEGs corrective actions included installation of a design change to modify instrument air piping to support leak rate testing of 1KBV-300 and addition of 1KBV-300 to its check valve monitoring and preventive maintenance program. PSEG also completed a revision to design calculation H- 1-KB-MDC-1007 to credit up to 500 standard cubic centimeter per minute (sccm) of leakage through 1KBV-300. This issue was more than minor because it was associated with the design control attribute of the mitigating systems cornerstone, and affected the cornerstones objective to ensure the availability and reliability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined the finding to be of very low safety significance (Green) in accordance with Exhibit 2 of IMC 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power, dated June 19, 2012, because: it was not a deficiency affecting the design or qualification of the containment vent; it did not represent a loss of system or function; it did not represent the loss of function for any technical specification (TS) system, train, or component beyond the allowed TS outage time; and it did not represent an actual loss of function of any non TS trains of equipment designated as highly safety-significant in accordance with PSEGs maintenance rule program. The inspectors determined that the finding had a cross cutting aspect in the Human Performance area associated with Resources, because PSEG did not ensure that personnel, equipment, procedures, and other resources are available and adequate to assure nuclear safety, specifically, those necessary for maintaining long term plant safety by maintenance of design margins. Specifically, PSEG did not ensure maintenance of design margin for the containment vent system when concerns were identified regarding its functionality. This included PSEG relying upon operation of the containment vents with hydraulic jacks that have not been operated since 1992 following their installation. |
| Site: | Hope Creek  |
|---|---|
| Report | IR 05000354/2013005 Section 4OA2 |
| Date counted | Dec 31, 2013 (2013Q4) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | F Ramirez G Dentel J Furia J Hawkins J Laughlin J Schoppy M Draxton M Orr M Patel N Floyd R Barkley R Nimitz S Ibarrola T Burns T Hedigan |
| CCA | H.6, Design Margins |
| INPO aspect | WP.2 |
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Finding - Hope Creek - IR 05000354/2013005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Hope Creek) @ 2013Q4
Self-Identified List (Hope Creek)
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