05000373/FIN-2016007-01

Finding

Title

Failure to Monitor the Fouling Conditions of the CSCS Equipment Area Coolers

Description

The team identified a finding of very-low safety significance (Green) and an associated NCV of Title 10, Code of Federal Regulations (CFR), Part 50, Appendix B, Criterion V, Instructions, Procedures, and Drawings, for the failure to monitor the fouling conditions of the core standby cooling system (CSCS) equipment area coolers. Specifically, the licensee did not develop performance test procedures to assess the fouling conditions of the safety-related CSCS equipment area coolers and did not have acceptance criteria that delineate when to remove accumulations. The licensee captured this issue in their Corrective Action Program (CAP) as Action Request (AR) 02665463 and established a standing order for operations to impose more restrictive service water temperature limits to reasonably assure the operability of the affected coolers until long term corrective actions were implemented to restore compliance. The performance deficiency was determined to be more than minor because it was associated with the Mitigating System cornerstone attribute of equipment performance and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The finding screened as of very low safety significance (Green) because it did not result in the loss of operability or functionality of mitigating systems. Specifically, the licensee reviewed actual service water temperature values measured during the last 12 months, performed an operability evaluation, and concluded that the historical temperatures did not exceed the operability limits established by the operability evaluation. The team did not identify a cross-cutting aspect associated with this finding because it was not confirmed to reflect current performance. Specifically, the test program for the CSCS equipment area coolers was developed in the decade of 1990s.

01
Site:	LaSalle
Report	IR 05000373/2016007 Section 1R21
Date counted	Jun 30, 2016 (2016Q2)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.21
Inspectors (proximate)	A Dahbur C Edwards D Reeser J Corujo-Sandin J Leivo M Jeffers N Feliz-Adorno
Violation of:	10 CFR 50 Appendix B Criterion V
INPO aspect
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v • d • e

Finding - LaSalle - IR 05000373/2016007

7(4)1(3)2(2)3(0)4(4)5(0)6(0)301(0)403(1)404(0)405(0)406(0)502(0)

IR 05000373/2016007: 1 2 3 4

Finding List (LaSalle) @ 2016Q2

CCA Matrix: 2016Q2

	Q	CCA	Title
05000373/FIN-2015010-01	2015Q3		Severity Level (SL)-III Violation (Enforcement Discretion
05000373/FIN-2015003-03	2015Q3		Failure to Ensure That Lease Agreements Prohibit the Use Anhydrous Ammonia Near LaSalle County Station
05000373/FIN-2015003-02	2015Q3		Failure to Establish Appropriate Agreements to Allow LaSalle County Station to be Notified in a Time
05000373/FIN-2015003-01	2015Q3		Failure to Maintain a Functional Ammonia Alarm
05000373/FIN-2015009-01	2015Q3		Use of an Analytical Method to Determine the Core Operating Limits without Prior NRC Approva
05000373/FIN-2015009-02	2015Q3	P.2	Failure to Preform a Required 50.59 Evaluation
05000373/FIN-2015004-02	2015Q4	H.6	Failure to Ensure that Painting Instructions were Appropriate to Preclude Challenging the Operability of Standby Gas Treatment and Control Room Ventilation Charcoal Filters
05000373/FIN-2015004-01	2015Q4	P.2	Failure to Perform Required Monthly Fire Extinguisher Inspections per National Fire Protection Association Code
05000373/FIN-2015004-04	2015Q4	H.4	Entry into an Area with Unknown Dose Rates
05000373/FIN-2015004-03	2015Q4	P.6	Failure to Follow Procedure Associated with Sealed Source Inventory and Leak Testing
05000374/FIN-2016001-03	2016Q1	H.5	Failure to Maintain Appropriate Work Instructions Led to Lost Parts in the Reactor Vessel
05000373/FIN-2016001-02	2016Q1		Partial Length Rods Exceeded Burnup Limit in Design Basis Method of Analysis
05000373/FIN-2016001-01	2016Q1		Adequacy of Changes to Pool Swell Analysis
05000373/FIN-2016007-04	2016Q2	P.3	Alternate Shutdown Procedures Failed to Ensure RCIC MOVs Supply Breakers Were Closed
05000373/FIN-2016007-03	2016Q2		Inadequate Procedures for Containment Debris Management
05000373/FIN-2016007-02	2016Q2		Failure to Ensure that Both Feed Supply Breakers for Swing DG Components Were Closed During Normal Plant Operation
05000373/FIN-2016007-01	2016Q2		Failure to Monitor the Fouling Conditions of the CSCS Equipment Area Coolers
05000373/FIN-2016002-02	2016Q2	H.1	Failure to Implement and Maintain Written Procedures Regarding Respirator Fit Testing
05000373/FIN-2016002-01	2016Q2	H.6	Partial-Length Rods Exceeded Burnup Limit in Design Basis Method of Analysis

Self-Identified List (LaSalle)

	Q	Title
05000373/FIN-2016403-01	2016Q1	Licensee-Identified Violation

[LaSalle Findings full list]

05000373/FIN-2016007-01

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