05000315/FIN-2016001-02: Difference between revisions

Finding

Title

Licensee-Identified Violation

Description

The licensee identified a finding of very low safety significance (Green) with an associated NCV of 10 CFR 50 Appendix B, Criterion III, Design Control, for the failure to ensure appropriate quality standards were specified and included in design documents associated with the Unit 1 and Unit 2 ESW strainer backwash valves. Specifically, this resulted in the use of non-dedicated parts in the backwash valves. The backwash function of the ESW strainers was originally classified as non-safety-related. However, in 2007, the backwash function became safety-related. When this change occurred, the Safety Classification Determination (SCD), which documented the safety classification of the various parts of the valves, was not updated accordingly. During a maintenance period on the ESW system in 2015, some licensee personnel questioned the adequacy of the SCD. The licensee later determined that non-dedicated replacement parts had been used in some of the strainer backwash valves since 2007. The issue was more than minor because per IMC 0612 Appendix B, it adversely affected the Mitigating Systems cornerstone objective of ensuring the reliability of systems that respond to initiating events to prevent undesirable consequences. The issue screened as Green based on the guidance in IMC 0609 Appendix A, Exhibit 2. Specifically, the finding was associated with the design or qualification of a mitigating SSC where the operability was maintained.

02
Site:	Cook
Report	IR 05000315/2016001 Section 4OA7
Date counted	Mar 31, 2016 (2016Q1)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	B Jose D Reeser J Ellegood J Mancuso K Riemer M Garza R Walton T Taylor
Violation of:	10 CFR 50 Appendix B Criterion III, Design Control
INPO aspect
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v • d • e

Finding - Cook - IR 05000315/2016001

1(2)2(4)3(4)4(2)5(0)6(0)7(0)8(0)9(2)10(0)201(2)301(0)403(0)404(1)405(0)406(1)407(1)10(0)

IR 05000315/2016001: 1 2

Finding List (Cook) @ 2016Q1

CCA Matrix: 2016Q1

	Q	CCA	Title
05000315/FIN-2015403-01	2015Q3		Security
05000315/FIN-2015003-05	2015Q3		PRA Model Errors
05000315/FIN-2015003-03	2015Q3		Deletion of Hot Shutdown Panel Procedures
05000315/FIN-2015003-04	2015Q3		Changes to Minimum 60-Minute Emergency Responder Staffing Without Prior Approval
05000315/FIN-2015003-01	2015Q3	H.9	Failure to Evaluate Fire Brigade Fire Fighting Techniques
05000316/FIN-2015003-02	2015Q3	H.8	Failure of Steam Dump Valves Results in Plant Trip
05000315/FIN-2015403-04	2015Q3		Security
05000315/FIN-2015403-02	2015Q3		Security
05000315/FIN-2015403-03	2015Q3		Security
05000315/FIN-2015403-05	2015Q3		Security
05000315/FIN-2015008-07	2015Q4		Failure to Verify the Station's Capability to Isolate Postulated CCW System Out-Leakagge
05000315/FIN-2015004-03	2015Q4		Failure to Evaluate the Adverse Effects of TRM Section Deletion
05000315/FIN-2015004-05	2015Q4	P.3	Deletion of Hot Shutdown Panel Procedures
05000315/FIN-2015004-04	2015Q4	P.3	Failure to Evaluate the Adverse Effects of TRM Section Deletion
05000315/FIN-2015004-02	2015Q4	H.12	Probabilistic Risk Assessment Model Errors
05000315/FIN-2015004-01	2015Q4	H.3	Failure to Monitor Forebay Structure
05000315/FIN-2015008-06	2015Q4		failure to Develop Procedures to Provide Starting Air to the EDGs to Recover From a SBO
05000315/FIN-2015008-05	2015Q4		Failure to Meet Applicable ISI Requirements for All CCW System Portions Within the ASME Code Class 3 Boundary
05000315/FIN-2015008-04	2015Q4		Failure to Consider All Design Basis CCW Passive Failures
05000315/FIN-2015008-03	2015Q4		Failure to Verify CRID Inverter Capability to Function During Fault Conditions
05000315/FIN-2015008-02	2015Q4		Failure to Verify the Acceptability of the Surveillance Acceptance Limits for CRID Inverter Operability
05000315/FIN-2015008-01	2015Q4		Failure to Ensure the Required Seven Day EDG Fuel Oil Storage
05000315/FIN-2016001-01	2016Q1	H.14	Incorrect Auxiliary Feedwater Mission Time

Self-Identified List (Cook)

	Q	Title
05000315/FIN-2015403-06	2015Q3	Licensee-Identified Violation
05000315/FIN-2015403-07	2015Q3	Licensee-Identified Violation
05000315/FIN-2015403-08	2015Q3	Licensee-Identified Violation
05000315/FIN-2015003-06	2015Q3	Licensee-Identified Violation
05000315/FIN-2015003-07	2015Q3	Licensee-Identified Violation
05000315/FIN-2015004-06	2015Q4	Licensee-Identified Violation
05000315/FIN-2016001-02	2016Q1	Licensee-Identified Violation

[Cook Findings full list]

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05000315/FIN-2016001-02: Difference between revisions

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