05000461/FIN-2017011-01

Finding

Title

Failure to Correct an Identified Degraded Condition on the Division 3 Shutdown Service Water Pump

Description

A self-revealing finding and an apparent violation of 10 CFR 50, Appendix B, Criterion XVI, Corrective Action, with associated violations of Technical Specification (TS) 3.7.2 and TS 3.5.1 were identified on June 15, 2017, for the licensees failure to correct a degraded condition identified during the evaluation performed as a result of the Division 3 shutdown service water (SX) pump failure in 2014. Specifically, the licensee identified corrosion of the Division 3 SX pump sleeves as a contributing cause of the 2014 pump failure and failed to appropriately evaluate and correct this issue. This resulted in the Division 3 SX pumps failure to start on June 15, 2017, and rendered the Division 3 SX pump inoperable for a time longer than its TS allowed outage time. The licensee entered this issue into the corrective action program and implemented design changes to the pump and motor assembly, including installing a new motor with higher starting torque characteristics and replacing the pump shaft sleeves and packing with parts more resistant to corrosion. The licensee has completed multiple successful runs of the new pump with no abnormalities noted. The inspectors determined that the licensees failure to correct a degraded condition identified during the evaluation performed as a result of the 2014 Division 3 SX pump failure appears to be not in accordance with the requirements of 10 CFR 50, Appendix B, Criterion XVI, and was a performance deficiency. The performance deficiency was determined to be more than minor because it impacted the Mitigating Systems cornerstone attribute of equipment performance and adversely affected the cornerstone objective of ensuring the availability, capability and reliability of equipment that responds to initiating events. Specifically, the performance deficiency resulted in the failure of the Division 3 SX pump, which impacted the operability and functionality of the high pressure core spray system and the Division 3 emergency diesel generator. Using IMC 0609, Appendix A, Significance Determination Process for Findings At-Power, dated June 19, 2012, a Significance and Enforcement Review Panel preliminarily determined the finding to be of low to moderate safety significance. The inspectors determined that this finding affected the cross-cutting area of problem identification and resolution in the aspect of evaluation, where the organization thoroughly evaluates issues to ensure that resolutions address causes and extent of 3 conditions commensurate with their safety significance. Specifically, the licensee failed to properly evaluate the Division 3 SX pump sleeve corrosion rates when performing the component life evaluation, the component operability evaluation and the evaluation in response to the abnormal noises identified during periodic pump runs. [P.2]

01
Site:	Clinton
Report	IR 05000461/2017011 Section 4OA2
Date counted	Dec 31, 2017 (2017Q4)
Type:	AV: White
cornerstone	Mitigating Systems
Identified by:	Self-revealing
Inspection Procedure:	IP 71152
Inspectors (proximate)	W Schaup E Sanchez J Hanna
Violation of:	10 CFR 50 Appendix B Criterion XVI Technical Specification
CCA	P.2, Evaluation
INPO aspect	PI.2
'
v • d • e

Finding - Clinton - IR 05000461/2017011

1(4)2(7)3(5)4(4)5(0)6(0)7(1)8(1)9(1)10(0)11(1)12(3)201(1)301(0)403(0)404(0)405(0)502(0)

IR 05000461/2017011: 1

Finding List (Clinton) @ 2017Q4

CCA Matrix: 2017Q4

	Q	CCA	Title
05000461/FIN-2017001-01	2017Q1	H.14	Plant Barrier Control Program Failed to Compensate for an Impacted Flood Barrier (
05000461/FIN-2017001-02	2017Q1	H.14	Failed to Verify an Appropriate Alternate Method of Decay Heat Removal
05000461/FIN-2017001-03	2017Q1	H.12	Failure to Develop and Review a Worker Tag Out
05000461/FIN-2017001-04	2017Q1	H.1	Failure to Perform Maintenance on Residual Heat Removal Pump C Breaker in Accordance with Procedures
05000461/FIN-2017002-01	2017Q2		Failure of Operators to Meet Time Critical Operator Actions
05000461/FIN-2017002-02	2017Q2	P.3	Failure to Perform Adequate Evaluation of Crane Rail Clips
05000461/FIN-2017002-03	2017Q2	H.12	Unexpected Start of the Division 3 Emergency Diesel Generato
05000461/FIN-2017002-04	2017Q2	H.6	Failure to Provide Sufficient Work Instructions for Performing Maintenance on the Control Room Ventilation System Charcoal Filte
05000461/FIN-2017002-05	2017Q2	H.11	Failure to Properly Classify a Shipment per DOT Regulations
05000461/FIN-2017002-06	2017Q2		Failure to Perform Preventive Maintenance on a Safety - Related Breaker Cubicl
05000461/FIN-2017002-07	2017Q2	H.1	Root Cause Evaluation Failed to Identify Corrective Action to Preclude Repetition
05000461/FIN-2017008-01	2017Q2	H.5	Failure to Perform Required S urveillances on Multiple Fire Dampers
05000461/FIN-2017007-01	2017Q3	H.1	Failure to Evaluate Defeating Reactor Core Isolation Cooling System Interlocks and Trips before Adding Them to an Emergency Operating Support Procedure
05000461/FIN-2017003-05	2017Q3	H.9	Failure to Establish Secondary Containment Prior to Entering MODE 2
05000461/FIN-2017003-04	2017Q3	H.14	Flow Control Valves Not Locked Out Results in Reactor Recirculation Pump Runback
05000461/FIN-2017003-03	2017Q3	H.13	Failure to Perform Engineering Evaluation to Determine the Cause of Failure of Snubbers
05000461/FIN-2017003-02	2017Q3	H.1	Failure to Adequately Control Access in Locked High Radiation Area
05000461/FIN-2017003-01	2017Q3	H.6	MSIV TS Leakage Limits Exceeded Due to Condition Based Maintenance Approach
05000461/FIN-2017009-01	2017Q3	H.11	Failure to Evaluate Replacement Relay Dropout Voltage
05000461/FIN-2017201-01	2017Q3	H.5	Security
05000461/FIN-2017012-01	2017Q4	H.5	Failure to Perform a Corrective Action to Prevent Recurrence
05000461/FIN-2017012-02	2017Q4	H.13	Failure to Properly Classify Non-Safety Related Auxiliary Transformers as Operationally Critical Components
05000461/FIN-2017012-03	2017Q4		Evaluation of RCE 04082490, Reactor Scram from Trip of 1AP07EJ)
05000461/FIN-2017011-01	2017Q4	P.2	Failure to Correct an Identified Degraded Condition on the Division 3 Shutdown Service Water Pump
05000461/FIN-2017004-01	2017Q4	H.5	Reactor Down Power due to Reactor Recirculation Pump Motor Lower Bearing Oil Leak
05000461/FIN-2017004-02	2017Q4	H.5	Failure to Assess and Manage Risk Associated with the Performance of Control Rod Time Testing
05000461/FIN-2017004-03	2017Q4	H.8	Failure to Identify the Extent of Condition for an Inadequate 10 CFR 50.59 Evaluation
05000461/FIN-2017004-04	2017Q4		Failure to Perform an Evaluation in Accordance with 10 CFR 72.48 for Changes Made to the Time-to-Boil Calculation

Self-Identified List (Clinton)

[Clinton Findings full list]

05000461/FIN-2017011-01

Navigation menu

Search