05000280/FIN-2009004-01
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Finding | |
|---|---|
| Title | Inadequate compensatory measures for the impairment of fire detection systems |
| Description | The inspectors identified a Green NCV of the Surry operating license, section 3.I Fire Protection, for an inadequate procedure that resulted in compensatory continuous fire watches in MERs #3 and #4 being inadequate (CR 342078). This finding is greater than minor because it is associated with the reactor safety mitigating systems cornerstone attribute to provide protection against external events and adversely affects the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors used Manual Chapter 0609, Appendix F, Fire Protection Significance Determination Process, to analyze this finding because the condition had an adverse affect on the Fixed Fire Protection Systems element of fire watches posted as a compensatory measure for fixed fire protection system outages or degradations. A low degradation rating was assigned to this finding as the provision affected by this finding (i.e. fire watches) is expected to display nearly the same level of effectiveness and reliability. Using Manual Chapter 0609, Appendix F, this finding was determined to be of very low safety significance (Green). A cross-cutting element was not assigned to this finding because the most significant contributor to the performance deficiency is not reflective of current performance |
| Site: | Surry  |
|---|---|
| Report | IR 05000280/2009004 Section 1R05 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | C Welch D Arnett G Mccoy J Nadel |
| INPO aspect | |
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Finding - Surry - IR 05000280/2009004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Surry) @ 2009Q3
Self-Identified List (Surry)
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