05000361/FIN-2011004-04
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Finding | |
|---|---|
| Title | Failure to Perform Plant Modification in Accordance with Applicable Specifications |
| Description | The inspectors identified a noncited violation of 10 CFR Part 50, Appendix B, Criterion III, Design Control, for the failure of licensee personnel to perform a modification to the Unit 3 high pressure safety injection system in accordance with the seismic requirements of the applicable construction specification. Specifically, in March 2010 (Unit 2) and February 2011 (Unit 3), licensee personnel failed to ensure that modifications per Engineering Change Packages NECP 800194395 (Unit 2) and NECP 800229823 (Unit 3) were either accomplished in accordance with Construction Specification CS-P206, Design Guide for Supporting Small Piping (2 Inch and Under), Revision 14, as required by the design change packages, or that deviations from the construction specification were controlled. This issue was entered into the licenseei12s corrective action program as Nuclear Notification NN 201608558. The performance deficiency is more than minor because if left uncorrected, it would have the potential to lead to a more significant safety concern, and is therefore a finding. Using Inspection Manual Chapter 0609.04, Phase 1 i12 Initial Screening and Characterization of Findings, the inspectors determined the finding to be of very low safety significance because it did not represent the loss of safety function of any system or train, and because during a seismic event, the absence of seismic supports on the subject pipe would not cause a plant trip or other initiating event, would not degrade two or more trains of a multi-train safety system or function, and would not degrade one or more trains of a system that supports a safety system or function. This finding has a crosscutting aspect in the area of human performance associated with the work practices component because licensee personnel failed to define and effectively communicate expectations regarding procedural compliance and to ensure that personnel followed procedures |
| Site: | San Onofre  |
|---|---|
| Report | IR 05000361/2011004 Section 4OA5 |
| Date counted | Sep 30, 2011 (2011Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | R Lantz J Reynoso G Warnick E Ruesch S Achen |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - San Onofre - IR 05000361/2011004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (San Onofre) @ 2011Q3
Self-Identified List (San Onofre)
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