05000368/FIN-2016007-10

Finding

Title

Failure to Develop an Operability Decision-Making Issue for Degraded Condition on Safety Injection Tank

Description

The team identified a Green finding for the licensees failure to create an operational decision making issue document per procedure EN-OP-111, Operability Decision Making Issue (ODMI) Process. Specifically, the licensee failed to evaluate the plant impact and operational challenges associated with not repairing safety injection tank check valve 2SI-13D bonnet leakage, which was identified prior to starting up from the fall 2016 outage. The leakage increased to the point where normal makeup capability was challenged. The licensees corrective actions included performing an unplanned shutdown to repair safety injection tank check valve 2SI-13D, and documenting the issue in the corrective action program as condition reports CR-ANO-2-2016-00546, CR-ANO-C-2016-0948, and CR-ANO-C-2016-01348. The failure to establish operational decision making issue guidance per procedure EN-OP-111 to address safety injection tank check valve 2SI-13D leakage was a performance deficiency. The performance deficiency was determined to be more than minor because it was associated with the equipment reliability attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the leak became an operational challenge, in that, operators were filling the safety injection tank for the majority of the shift. The finding was evaluated using Inspection Manual Chapter 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings, and Appendix A, The Significance Determination Process (SDP) for Findings At-Power, Exhibit 2 Mitigating Systems Screening Questions, dated June 19, 2012. The team determined the finding was of very low safety significance (Green) because it did not represent an actual loss of function of at least a single train for greater than its technical specification allowed outage time, and did not involve the loss or degradation of equipment or function specifically designed to mitigate a seismic, flooding, or severe weather initiating event. This finding had a problem identification and resolution cross-cutting aspect of Self-Assessment because the licensee did not conduct self-critical and objective reviews of degraded plant issue to determine whether they should be addressed using the operational decision making issue process [P.6].

10
Site:	Arkansas Nuclear
Report	IR 05000368/2016007 Section 4OA4
Date counted	Mar 31, 2016 (2016Q1)
Type:	Finding: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 95003
Inspectors (proximate)	B Correll C Osterholtz D Betancourt D Lackey D Willis E Duncan G Hansen J Brand J Dixon J Mateychick L Mckown M Holmberg M Keefe M Phalen N O'Keefe P Mckenna R Alexander R Deese R Kopriva R Kumana S Graves S Morrow S Rich S Smith T Hartman W Sifre Z Hollcraft
CCA	P.6, Self-Assessment
INPO aspect	CL.2
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v • d • e

Finding - Arkansas Nuclear - IR 05000368/2016007

1(6)2(3)3(1)4(4)5(0)6(0)7(21)8(6)9(4)10(0)11(0)301(0)401(0)402(0)403(0)404(2)405(0)11(1)

IR 05000368/2016007: 1 2 3 4 6 9 11 12 13 14 15 16 17 18 19 21 5 7 8 10 20

Finding List (Arkansas Nuclear) @ 2016Q1

CCA Matrix: 2016Q1

	Q	CCA	Title
05000313/FIN-2015003-02	2015Q3		Failure to Promptly Correct a Condition Adverse to Quality Involving Motor Control Center Bus Stabs
05000368/FIN-2015003-01	2015Q3	H.12	Failure to Follow Procedure Results in Increased Reactor Coolant Activity
05000313/FIN-2015004-03	2015Q4		Failure to Properly Translate the Design Requirements for the Unit 1 Decay Heat Vault Rooms Being Sealed (
05000313/FIN-2015004-01	2015Q4	H.13	Failure to Assess Risk for Switchyard Work
05000313/FIN-2015004-02	2015Q4	H.12	Failure to Identify and Correct Rain Water Accumulation in the Emergency Diesel Generator System Exhausts
05000313/FIN-2016007-12	2016Q1	P.1	Failure to Perform Predictive Maintenance on Safety-Related Medium-Voltage Switchgear
05000313/FIN-2016007-17	2016Q1		Determine Impact of Modifying Fire Seals for Flood Protection
05000313/FIN-2016007-14	2016Q1	H.3	Failure to Properly Implement the Corrective Action Program
05000368/FIN-2016007-08	2016Q1		Inadequate Flow Monitoring of Unit 2 Service Water to Emergency Feedwater Pump Suction Supply
05000368/FIN-2016007-07	2016Q1		Failure to Maintain Service Water Design Cooling to the Unit 2 High Pressure Safety Injection Pump Seal and Bearing Coolers
05000368/FIN-2016007-05	2016Q1		Failure to Include Unit 2 Service Water Pump Supports in the ASME Code Section XI Inservice Inspection Program
05000368/FIN-2016001-03	2016Q1		Blocked Drain Results in Emergency Feedwater Pump Inoperability
05000368/FIN-2016001-02	2016Q1		Failure to Follow Design Control Requirements for Pump Seal Cooler Replacements
05000313/FIN-2016007-15	2016Q1	P.1	Failure to Maintain Structural Design Clearances inside the Unit 1 and 2 Reactor Containment Buildings
05000313/FIN-2016001-01	2016Q1	H.4	Failure to Assess and Manage Hot Work Risk
05000313/FIN-2016007-11	2016Q1	P.5	Pressurizer Block Valve Not Installed in the Qualified Environmental Configuration
05000368/FIN-2016007-10	2016Q1	P.6	Failure to Develop an Operability Decision-Making Issue for Degraded Condition on Safety Injection Tank
05000313/FIN-2016007-02	2016Q1	P.6	Inadequate Effectiveness Reviews for Corrective Actions to Prevent Recurrence
05000313/FIN-2016007-01	2016Q1	P.3	Failure to Complete Extent of Condition Reviews for the Stator Drop Significant Condition Adverse to Quality Event
05000313/FIN-2016001-05	2016Q1	P.2	Failure to Identify and Repair Intermittent Card Failure Leads to a Reactor Trip
05000313/FIN-2016007-16	2016Q1	H.7	Failure to Properly Calibrate Unit 1 Reactor Building Atmospheric Particulate Radiation Monitor RE-7460
05000313/FIN-2016007-13	2016Q1	H.1	Failure to Update Probabilistic Risk Assessment Model in a Timely Manner Results in Failure to Submit Complete and Accurate Information
05000313/FIN-2016007-09	2016Q1	H.5	Emergency Feedwater Pump Casing Wall Loss Not Monitored
05000313/FIN-2016007-06	2016Q1	H.6	Failure to Correct Degraded Unit 2 Train B Emergency Diesel Generator Heat Exchangers Service Water Flow and Degraded Unit 1 Containment Coatings
05000313/FIN-2016007-04	2016Q1	H.14	Inadequate Control of Monitoring for Wall Loss in the Service Water System
05000313/FIN-2016007-03	2016Q1	H.14	Inadequate Operating Experience Evaluations
05000368/FIN-2016001-04	2016Q1	H.12	Failure to Inject Service Water with Corrosion Inhibitors during Refueling Outages

Self-Identified List (Arkansas Nuclear)

	Q	Title
05000313/FIN-2015404-01	2015Q3	Licensee-Identified Violation
05000313/FIN-2016001-06	2016Q1	Licensee-Identified Violation
05000313/FIN-2016007-18	2016Q1	Licensee-Identified Violation
05000313/FIN-2016007-19	2016Q1	Licensee-Identified Violation
05000368/FIN-2016007-20	2016Q1	Licensee-Identified Violation
05000313/FIN-2016007-21	2016Q1	Licensee-Identified Violation

[Arkansas Nuclear Findings full list]

05000368/FIN-2016007-10

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