05000298/FIN-2017009-01

Finding

Title

Exceeding the Technical Specification A llowed Out of Service Time of the Division I RHR System

Description

Green . The team reviewed a self -revealed, non -cited violation of Technical Specific ation 3.5.1, Emergency Core Cooling Systems Operating, for the licensees failure to restore the Division I residual heat removal system (RHR) during clearance restoration, which resulted in exceeding the applicable technical specification action compl etion time . Specifically, from October 7, 2016, to February 5, 2017, the licensee failed to restore Division I RHR minimum flow isolation valves for RHR pumps A and C to the open position prior to reinstalling the valve sealing devices following maintenan ce perform ed during Refueling Outage 29. The licensees immediate corrective action was to restore the Division I RHR subsystem to operable status by sealing open the minimum flow isolation valves for RHR pumps A and C. The licensee entered this issue in to their corrective action program as C ondition Report CR- CNS -2017- 0055 3. The licensees failure to properly restore the Division I RHR system during clearance restoration resulted in exceeding the applicable technical specification action completion time , in violation of Technical Specification 3.5.1, whi ch was a performance deficiency. The performance deficiency was more than minor, and therefore a finding, because it was associated with the human performance attribute of the Mitigating Systems C ornerst one and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to pr event undesirable consequences. Specifically, the failure to follow technical specification requirements t o ensure the availability, reliability, and capability of the Division I RHR sub system directly affe cted the cornerstone objective. Using Inspection Manual Chapter 0609, Appendix A, The Significance Determination Process (SDP) for Findings At -Power, dat ed June 19, 2012, the inspectors determined that the finding required a detail ed risk evaluation because it involved an actual loss of function of at least a single train for greater than its technical spec ification allowed outage time. A detai led risk ev aluation (Attachment 2) calculated an increase in core damage frequency of 4.7E -7 for the 89 days, 12 hours, and 49 minutes exposure period. Therefore, this violation was of very low safety significance (Green). The team determined the finding had a cros s- cutting aspect within the human performance area, challenge the unknown, because individuals fail ed to perform adequate job -site reviews to identify and resolve unexpected conditions. Specifically, operations personnel restoring the Division I RHR subsy stem did 3 not ensure that the minimum flow isolation valves were repositioned to the correct position of sealed open [H.11].

01
Site:	Cooper
Report	IR 05000298/2017009 Section 4OA3
Date counted	Jun 30, 2017 (2017Q2)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Self-revealing
Inspection Procedure:	IP 71153
Inspectors (proximate)	N Hernandez
Violation of:	Technical Specification
CCA	H.11, Challenge the Unknown
INPO aspect	QA.2
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v • d • e

Finding - Cooper - IR 05000298/2017009

1(6)2(4)3(3)4(0)5(0)6(0)7(0)8(0)9(2)10(5)11(1)12(2)301(0)403(0)404(0)501(0)

IR 05000298/2017009: 1 2

Finding List (Cooper) @ 2017Q2

CCA Matrix: 2017Q2

	Q	CCA	Title
05000298/FIN-2016008-01	2016Q3		Possible Failure to Ensure that the Assumptions in the Engineering Analysis Remain Valid
05000298/FIN-2016004-01	2016Q4	H.12	Failure to Maintain Reactor Vessel Assembly Procedure to Ensure Adequate Moisture Separator Shielding
05000298/FIN-2016004-02	2016Q4	H.3	Failure of an Analysis to Demonstrate that Changes Did Not Reduce the Effectiveness of the Emergency Plan
05000298/FIN-2016004-03	2016Q4	H.1	Failure to Maintain Service Water Pump Maintenance Procedure
05000298/FIN-2016403-01	2016Q4	H.13	Security
05000298/FIN-2016004-04	2016Q4		Failure to Maintain Main Steam System Operating Procedure
05000298/FIN-2017001-02	2017Q1	P.2	Failure to Identify a Condition Adverse to Quality Associated with the 250 Vdc Electrical System
05000298/FIN-2017001-06	2017Q1	H.7	Failure to Install Correct Mechanical Stop and Verify Proper Operation
05000298/FIN-2017001-05	2017Q1	H.5	Loss of Shutdown Cooling due to Relay Maintenance
05000298/FIN-2017001-04	2017Q1	H.6	Failure to Address Nonconforming Pipe Thinning in Accordance with the ASME Code
05000298/FIN-2017001-03	2017Q1	H.11	Failure to Identify a Condition Adverse to Quality
05000298/FIN-2017001-01	2017Q1	P.1	Failure to Maintain Alternate Shutdown Emergency Procedure
05000298/FIN-2017010-05	2017Q2		Failure to adopt appropriate procedures in accordance with 10 CFR Part 21
05000298/FIN-2017002-01	2017Q2	H.5	Failure to Assess Operability of Technical Specification System Functions during Surveillance Testing
05000298/FIN-2017002-02	2017Q2	H.1	Loss of Control Room Ventilation Due to Ineffective Preventive Maintenance Strategy
05000298/FIN-2017002-03	2017Q2	H.11	Loss of Control Room Ventilation Due to Improper Switch Manipulation
05000298/FIN-2017009-01	2017Q2	H.11	Exceeding the Technical Specification A llowed Out of Service Time of the Division I RHR System
05000298/FIN-2017009-02	2017Q2	H.1	Failure to Implement an Adequate Procedure for Equipment Control
05000298/FIN-2017010-01	2017Q2	P.3	Failure to Assign Corrective Actions to Prevent Recurrence of High Pressure Coolant Injection Failure
05000298/FIN-2017010-02	2017Q2	H.13	Failure to Perform Timely Operability Determinations
05000298/FIN-2017010-03	2017Q2	P.4	Programmatic Failure to Identify and Correct Adverse Trends
05000298/FIN-2017010-04	2017Q2	P.2	Failure to Monitor No. 2 Diesel Generator under 50.65(a)(1) due to Inadequate Maintenance Rule Evaluation

Self-Identified List (Cooper)

	Q	Title
05000298/FIN-2017002-04	2017Q2	Licensee-Identified Violation

[Cooper Findings full list]

05000298/FIN-2017009-01

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