05000263/FIN-2008006-01
From kanterella
Revision as of 19:32, 28 October 2017 by StriderTol (talk | contribs) (Created page by program invented by StriderTol)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Finding | |
|---|---|
| Title | Shutdown Panel Requirements Removed from Improved Technical Specifications (Section 1R05.1b.(1)) |
| Description | A finding of very low safety significance and associated NCV of license condition 2.C.4 was identified by the inspectors for the removal of the alternative shutdown system (ASDS) panels administrative control requirements from the Improved Technical Specifications (ITS) without ensuring those requirements were maintained within the licensees fire protection program. Specifically, since October 30, 2006, when the licensee implemented ITS, the compensatory measures required to ensure safe shutdown (SSD) capability while the ASDS panel was taken out-of-service or inoperable were deleted and this constituted a change to licensees fire protection program. The licensees fire protection program relied upon the ASDS panels administrative controls contained in the CTS ensured that one train of SSD equipment and/or systems was free of fire damage and provided appropriate interim compensatory measures when the ASDS panel was taken out-of-service or was inoperable. As a result, the licensee entered this finding into their corrective action program as CAP 01134601, Technical Specification Bases 3.3.3.2 Is Misleading, dated April 15, 2008, and CAP 01134747, NRC Questioned Lack of Compensatory Measures When a Component Controlled from the ASDS Is Removed from Service, dated April 16, 2008. The licensees immediate corrective action was to begin investigating changes to the administrative controls for the ASDS panel governing SSD. The finding was determined to be more than minor because if left uncorrected, the finding would become a more significant safety concern. Specifically, the licensees failure to maintain the ASDS panels administrative control requirements within the licensees fire protection program would adversely affect the ability to achieve and maintain SSD from outside the control room in case of a fire in the control room or the cable spreading room. The inspectors concluded this finding was associated with the protection against external factors attribute of the mitigating systems cornerstone and adversely affected the cornerstones objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). A low degradation rating was assigned to the finding since the findings deficiencies would in all probability be compensated by operator experience/familiarity. In addition, the availability and reliability of the manual (i.e., control room) and automatic suppression (i.e., cable spreading room) systems; and plant records that stated the ASDS panel had not been out-of-service for more than 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at a time since the implementation of ITS were additional reasons for the assigned rating. Therefore, the finding was of very low safety significance. This finding has a cross-cutting aspect in the area of human performance and within the cross-cutting component of resources because the licensee did not ensure that personnel and/or other resources were available and adequate to assure nuclear safety. Specifically, the licensee failed to ensure that the necessary interdisciplinary reviews and/or inputs needed for the up-to-date design documentation reviews occurred when deleting and/or changing the ASDS panels administrative control requirements. H.2(c) (Section 1R05.1b.(1) |
| Site: | Monticello  |
|---|---|
| Report | IR 05000263/2008006 Section 1R05 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | No Cornerstone |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | R Winter B Jose G Hausman J Lara |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
| ' | |
Finding - Monticello - IR 05000263/2008006 | ||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Monticello) @ 2008Q2
Self-Identified List (Monticello)
| ||||||||||||||||||||||||||||||||||||||||||||