05000293/FIN-2017002-03

Finding

Title

Inaccurate Suppression Pool Water Level Instrument not Identified during Post-event Prompt Investigation

Description

An NRC-identified Green NCV of Title 10 of the Code of Federal Regulations (10 CFR) Part 50, Appendix B, Criterion XVI, Corrective Action, was identified because Entergy staff did not identify and correct a condition adverse to quality related to suppression pool water level indication when the A suppression pool wide range instrument provided inaccurate level indication during the inadvertent suppression pool water level increase event on March 31, 2017. As corrective actions, Entergy entered Technical Specification (TS) 3.2.F, Protective Instrumentation - Surveillance Information Readouts, and repaired the instrument. This issue was entered into Entergys corrective action program (CAP) as condition report (CR) 2017-2965. The performance deficiency is more than minor because if left uncorrected, the performance deficiency had the potential to lead to a more significant safety concern. Specifically, inaccurate level indication during off-normal changing level conditions in the suppression pool could result in operator actions not warranted by plant conditions. The finding is also associated with the Initiating Events cornerstone. Using IMC 0609, Appendix A, Exhibit 1, issued June 19, 2012, The Significance Determination Process for Findings At-Power, the inspectors determined the finding was of very low safety significance (Green) because the finding did not cause a reactor trip and a loss of mitigation equipment relied upon to transition the plant from the onset of the trip to a stable shutdown condition. This finding has a cross-cutting aspect in the area of Problem Identification and Resolution - Identification, because the Entergy organization did not demonstrate an appropriately low threshold for entering problems into their CAP. Specifically, Entergys prompt investigation of the inadvertent suppression pool level increase event did not identify that the A suppression pool wide range level instrument was not indicating properly and required corrective maintenance. [P.1]

03
Site:	Pilgrim
Report	IR 05000293/2017002 Section 4OA3
Date counted	Jun 30, 2017 (2017Q2)
Type:	NCV: Green
cornerstone	Initiating Events
Identified by:	NRC identified
Inspection Procedure:	IP 71153
Inspectors (proximate)	E Carfang B Pinson J Vazquez J Pfingstein C Highley S Mccarver B Dionne J Schoppy J Kulp J Furia T Dunn P Boguszewski A Burritt
Violation of:	10 CFR 50 Appendix B 10 CFR 50 Appendix B Criterion XVI Technical Specification
CCA	P.1, Identification
INPO aspect	PI.1
'
v • d • e

Finding - Pilgrim - IR 05000293/2017002

1(4)2(8)3(0)4(0)5(0)6(0)7(2)8(0)9(0)10(0)201(0)301(0)403(4)404(0)405(2)14(3)

IR 05000293/2017002: 1 2 3 4 5 6 7 8

Finding List (Pilgrim) @ 2017Q2

CCA Matrix: 2017Q2

	Q	CCA	Title
05000293/FIN-2016003-04	2016Q3	H.8	Failure to Adequately Evaluate the Effect of Degraded Normally Energized Agastat relays on PCIVs Operability
05000293/FIN-2016003-03	2016Q3		Failure to Properly Implement Agastat Control Relays Preventive Maintenance Procedure in Accordance with TS 5.4.1
05000293/FIN-2016003-02	2016Q3	P.5	Inadequate Operability Assessment on EDG B
05000293/FIN-2016003-01	2016Q3	P.2	Process Radiation Monitor Subsystems 10 CFR 50.65(a)(2) Not Met
05000293/FIN-2016403-02	2016Q4	H.1	Security
05000293/FIN-2016403-10	2016Q4		Security
05000293/FIN-2016004-05	2016Q4	H.5	Feedwater Regulating Valve Failure Results in Reactor Scram
05000293/FIN-2016004-04	2016Q4	H.14	Failure to Correct a Condition Adverse to Quality Associated with Main Steam Isolation Valve
05000293/FIN-2016004-02	2016Q4	H.6	Ineffective Corrective Actions to Correct High Pressure Coolant Injection System Vibrations
05000293/FIN-2016403-01	2016Q4	H.12	Security
05000293/FIN-2016403-03	2016Q4	H.11	Security
05000293/FIN-2016403-04	2016Q4	H.14	Security
05000293/FIN-2016403-06	2016Q4		Security
05000293/FIN-2016004-03	2016Q4	H.12	Failure to Properly Assess and Manage Risk Associated with Shutdown Transformer Protective Relay Testing
05000293/FIN-2016403-05	2016Q4	H.7	Security
05000293/FIN-2016004-01	2016Q4	H.14	Failure to Promptly Perform an Operability Evaluation for a Recirculation Flow Converter
05000293/FIN-2017001-03	2017Q1	P.2	Untimely Corrective Actions associated with Boraflex degradation in the Spent Fuel Pool
05000293/FIN-2017001-01	2017Q1		Concern Regarding Ability to Declare EALs during Loss of Control Room Air Conditioning
05000293/FIN-2017406-01	2017Q1		Security
05000293/FIN-2017001-04	2017Q1		Failure to Submit a Required 50.72 Notification
05000293/FIN-2016011-07	2017Q1		Failure to Report Condition Prohibited by Technical Specifications and a Safety System Functional Failure
05000293/FIN-2017001-02	2017Q1	H.8	Failure to Follow Procedures for Controlled Shutdown
05000293/FIN-2016011-11	2017Q1	H.3	Failure to Adequately Develop and Implement Targeted Performance Improvement Plans
05000293/FIN-2016011-10	2017Q1	H.14	Failure to Promptly Correct a Condition Adverse to Quality for the Residual Heat Removal System
05000293/FIN-2016011-09	2017Q1	P.2	Ineffective Corrective Actions to Address Conditions Adverse to Quality Regarding Components in Contact with or Close Proximity to the Drywell Liner
05000293/FIN-2016011-08	2017Q1	P.2	Failure to Adequately Monitor the Performance of Maintenance Rule Scoped Components
05000293/FIN-2016011-05	2017Q1	H.1	Failure to Establish Corrective Actions to Address Scope of Procedure Quality Issues
05000293/FIN-2016011-04	2017Q1	H.4	Programmatic Issue with Implementation of the Operability Determination Process
05000293/FIN-2016011-03	2017Q1	H.8	Failure to Issue Appropriate Corrective Actions to Preclude Repetition for the Causes of the September 2016 Scram
05000293/FIN-2016011-02	2017Q1	H.8	Failure to Establish Corrective Actions to Preclude Repetition of a Significant Condition Adverse to Quality
05000293/FIN-2016011-01	2017Q1	H.12	Failure to Identify All Root Causes of a Significant Condition Adverse to Quality
05000293/FIN-2016011-06	2017Q1		Design Change Not Appropriately Reviewed by Entergy
05000293/FIN-2017002-07	2017Q2		Untimely 10 CFR 50.72 Notification of a Secondary Containment System Functional Failure
05000293/FIN-2017002-01	2017Q2	H.8	Failure to Follow Procedure Requirements for the Control of a Flood Protection Barrier
05000293/FIN-2017002-03	2017Q2	P.1	Inaccurate Suppression Pool Water Level Instrument not Identified during Post-event Prompt Investigation
05000293/FIN-2017002-04	2017Q2	H.8	Improper System Restoration Results in Suppression Pool Inoperability
05000293/FIN-2017002-05	2017Q2	P.3	Damper Failure Causes Loss of Secondary Containment
05000293/FIN-2017002-06	2017Q2	H.14	Secondary Containment Testing not performed per Technical Specifications
05000293/FIN-2017002-02	2017Q2		Reporting of Unplanned Scrams with Complications Performance Indicator for Feedwater Regulating Valve Scram

Self-Identified List (Pilgrim)

	Q	Title
05000293/FIN-2016403-07	2016Q4	Licensee-Identified Violation
05000293/FIN-2016403-08	2016Q4	Licensee-Identified Violation
05000293/FIN-2016403-09	2016Q4	Licensee-Identified Violation
05000293/FIN-2016004-06	2016Q4	Licensee-Identified Violation
05000293/FIN-2016011-12	2017Q1	Licensee-Identified Violation
05000293/FIN-2016011-13	2017Q1	Licensee-Identified Violation
05000293/FIN-2017002-08	2017Q2	Licensee-Identified Violation

[Pilgrim Findings full list]

05000293/FIN-2017002-03

Navigation menu

Search