05000373/FIN-2010002-02: Difference between revisions

Finding

Title

Improper Procedure Implementation During Testing of Excess Flow Check Valve

Description

A finding of very low safety significance was self-revealed with the unit in the refueling mode of operation. Specifically, operations and maintenance personnel did not establish proper field communications while testing excess flow check valves (EFCV) as required by procedure and consequently operated the wrong component. As a result, a Division 2 emergency core cooling system (ECCS) signal was received and control room operators were subjected to an unnecessary operational distraction. A NCV of Section 10 of the Code of Federal Regulations (CFR) Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, was also identified for failure to appropriately implement procedure LIS-NB-115B, Unit 1 High Pressure Excess Flow Check Valve Operability Test. The inspectors determined that the finding was more than minor because it affected the Initiating Events Cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety function during shutdown as well as power operations. It also affected the Human Performance Cornerstone attribute due to the multiple errors associated with field communications and procedure use and affected the Configuration Control attribute for shutdown lineup. Specifically, by not following the procedure as written, personnel in the field created an unnecessary operational distraction in the control room while other significant activities, such as refueling operations, were in progress. The finding was determined to be of very low safety significance using the SDP Phase 1. This finding is also related to the cross-cutting area of Human Performance (work practices) because the procedure in question was not followed. Corrective actions planned and completed by the licensee included halting all EFCV testing until an initial investigation into the event was performed and conducting an apparent cause evaluation for the event.

02
Site:	LaSalle
Report	IR 05000373/2010002 Section 1R20
Date counted	Mar 31, 2010 (2010Q1)
Type:	NCV: Green
cornerstone	Initiating Events
Identified by:	Self-revealing
Inspection Procedure:	IP 71111.2
Inspectors (proximate)	M Holmberg F Ramirez K Riemer M Mitchell B Metrow J Yesinowski C Scott A Scarbeary P Smagacz J Corujo-Sandin
CCA	H.8, Procedure Adherence
INPO aspect	WP.4
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v • d • e

Finding - LaSalle - IR 05000373/2010002

2(2)3(1)4(0)5(6)6(5)301(0)402(1)403(0)405(0)501(0)502(0)503(2)

IR 05000373/2010002: 1 2

Finding List (LaSalle) @ 2010Q1

CCA Matrix: 2010Q1

	Q	CCA	Title
05000373/FIN-2009004-02	2009Q3		Failure to Make Required Non-Emergency 50.72 Notification to NRC Following Loss of Shutdown Cooling
05000373/FIN-2009006-01	2009Q3		Inadequate Revision for Technical Requirement Manual Section
05000373/FIN-2009004-01	2009Q3	H.7	Failure to Decalre SBLC System Inoperable During Surveillance Testing
05000373/FIN-2009004-03	2009Q3	H.7	Reactor Scram During Turbine Testing
05000373/FIN-2009005-01	2009Q4		Changes to EAL HU6 Potentially Decrease the Effectiveness of the Plans without Prior NRC Approval
05000373/FIN-2009005-02	2009Q4		Review of Rod Control Management System 50.59 Evaluation
05000373/FIN-2010002-01	2010Q1		Failure to Maintain Design Control of SBLC system
05000373/FIN-2010002-02	2010Q1	H.8	Improper Procedure Implementation During Testing of Excess Flow Check Valve

Self-Identified List (LaSalle)

	Q	Title
05000373/FIN-2009004-04	2009Q3	Licensee-Identified Violation

[LaSalle Findings full list]

@@ Line 13: / Line 13: @@
 | identified by = Self-Revealing
 | Inspection procedure = IP 71111.2
-| Inspector = M Holmberg, F Ramirez, K Riemer, M Mitchell, B Metrow, J Yesinowski, C Scott, A Scarbeary, P Smagacz, J Corujo,-Sandi
+| Inspector = M Holmberg, F Ramirez, K Riemer, M Mitchell, B Metrow, J Yesinowski, C Scott, A Scarbeary, P Smagacz, J Corujo-Sandin
 | CCA = H.8
 | INPO aspect = WP.4

05000373/FIN-2010002-02: Difference between revisions

Latest revision as of 19:39, 20 February 2018

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05000373/FIN-2010002-02: Difference between revisions

Latest revision as of 19:39, 20 February 2018

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