05000269/FIN-2008006-01: Difference between revisions

Finding

Title

Inadequate Design Control in the Translation of Design Basis Information into Procedure for Draining and Nitrogen Purging the RCS (Section 1R21.2.2)

Description

The inspectors identified a finding of very low safety significance involving a non-cited violation (NCV) of 10 CFR 50, Appendix B, Criterion III, Design Control. Specifically, the licensee failed to verify the applicability of design basis information, related to critical vortex height to assure adequate low pressure injection (LPI) pump suction conditions, before translating that information into the shutdown operations procedure for draining the reactor coolant system. This finding is greater than minor because if left uncorrected, the finding would become a more significant safety concern. In particular, the station routinely uses older calculations, test information, and analyses to establish operator action or alarm set points, support operability determinations, or change the design of the plant. If the applicability of that information is not verified for the system configuration and conditions under review, the quality of that engineering product could be compromised, resulting in a significant safety concern. The finding was determined to be of very low significance, via Manual Chapter (MC) 0609, Appendix G, Attachment 1, Shutdown Operations Significance Determination Process (SDP), Phase 1 because it did not significantly degrade the station capability to recover decay heat removal. The cause of the finding is related to the cross-cutting area of problem identification and resolution, specifically with respect to corrective action, because the licensee did not thoroughly evaluate the previous similar finding in the 2006 Oconee Component Design Bases Inspection (CDBI) such that the resolution adequately addressed causes and extent of condition (MC 0305, aspect P.1.c). [Section 1R21.2.2

01
Site:	Oconee
Report	IR 05000269/2008006 Section 1R21
Date counted	Mar 31, 2008 (2008Q1)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.21
Inspectors (proximate)	R Moore D Jones B Sherbin D Mas-Penaranda S Kobylarz C Peabody B Desai
CCA	P.2, Evaluation
INPO aspect	PI.2
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v • d • e

Finding - Oconee - IR 05000269/2008006

1(0)2(3)3(3)4(1)5(0)6(2)7(0)8(0)9(0)10(0)201(0)301(0)401(0)501(0)

IR 05000269/2008006: 1 2

Finding List (Oconee) @ 2008Q1

CCA Matrix: 2008Q1

	Q	CCA	Title
05000269/FIN-2007008-02	2007Q3		Untimely Corrective Action to Determine If Steel Plate Laminations Existed in SAFETY-RELATED Applications
05000269/FIN-2008002-02	2008Q1	H.4 H.5	Failure to Implement the Procedure to Stroke RBS Valves
05000269/FIN-2008002-03	2008Q1	H.8	Dilution of the RCS While Linging up for SFP Makeup
05000269/FIN-2008006-01	2008Q1	P.2	Inadequate Design Control in the Translation of Design Basis Information into Procedure for Draining and Nitrogen Purging the RCS (Section 1R21.2.2)
05000269/FIN-2008006-02	2008Q1		Inadequate Verification of Local Manual Operating Capability for EFW Flow Control Valves (Section 1R21.2.6)
05000269/FIN-2008002-01	2008Q1	H.11 H.12	Inadequate Installation of SSF DG Field Flash

Self-Identified List (Oconee)

[Oconee Findings full list]

@@ Line 13: / Line 13: @@
 | identified by = NRC
 | Inspection procedure = IP 71111.21
-| Inspector = R Moore, D Jones, B Sherbin, D Mas,-Penaranda S, Kobylarz C, Peabody B, Desa
+| Inspector = R Moore, D Jones, B Sherbin, D Mas-Penaranda, S Kobylarz, C Peabody, B Desai
 | CCA = P.2
 | INPO aspect = PI.2

05000269/FIN-2008006-01: Difference between revisions

Latest revision as of 19:36, 20 February 2018

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05000269/FIN-2008006-01: Difference between revisions

Latest revision as of 19:36, 20 February 2018

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