05000298/FIN-2012007-02

Finding

Title

Failure to Provide Adequate Resistance Values for the Preventative Maintenance of the Non-Segregated Phase Bus Duct

Description

The team identified a Green noncited violation of 10 CFR Part 50, Appendix B, Criterion XI, Test Control, which states, in part, A program shall be established to assure that all testing required to demonstrate structures, \'< CIT! will perform satisfactorily in service is identified and performed in accordance with written test procedures which incorporate acceptance limits contained in applicable documents. Specifically, prior to April 4, 2012, for the Startup Station Service Transformer (SSST), the licensee did not use the actual measured bus bar resistance values which exceeded the calculated values. This resulted in non-conservative values used in Calculation NEDC 00-003, which did not bound actual plant parameters. Also, for the Emergency Station Service Transformer (ESST), the current procedure has a resistance acceptance tolerance specified as 1 Ohm, and in Condition Report CR-CNS-2011-11750, the licensee found the actual measured value was in the milliohms, which should have been used as the acceptance criteria in the procedure. This finding was entered into the licensee\'s corrective action program as Condition Reports CR-CNS-2012-02358 and CR-CNS-2012-02359. The team determined that the failure to provide adequate acceptance criteria for the bus duct resistance for the Emergency Station Service Transformer and the Startup Station Service Transformer was a performance deficiency. This finding was more than minor because it was associated with the test control attribute of the Mitigating Systems Cornerstone and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. In accordance with NRC Inspection Manual Chapter 0609, Attachment 4, Phase 1 - Initial Screening and Characterization of Findings, the issue was determined to have very low safety significance (Green) because it was a test deficiency confirmed not to result in loss of operability or functionality. Specifically, the licensee performed an engineering justification for the bus resistance acceptance criteria based on the difference between the as measured resistance values and those values used in the voltage iegulation study, and found the values acceptable. This finding was determined to have a cross-cutting aspect in the area of human performance associated with the decision making component because the licensee did not use conservative assumptions in decision making and adopt a requirement to demonstrate that the proposed action is safe in order to proceed rather than a requirement to demonstrate that it is unsafe in order to disapprove the action.

02
Site:	Cooper
Report	IR 05000298/2012007 Section 1R21
Date counted	Jun 30, 2012 (2012Q2)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.21
Inspectors (proximate)	V Ferrarini R Kopriva T Farnholtz S Garchow R Latta B Correll G Morris M Williams
CCA	H.14, Conservative Bias
INPO aspect	DM.2
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v • d • e

Finding - Cooper - IR 05000298/2012007

1(0)2(9)3(16)4(13)5(12)6(0)7(6)8(0)301(1)403(0)404(4)501(0)503(0)801(0)31(0)

IR 05000298/2012007: 1 2 3 4 5 6

Finding List (Cooper) @ 2012Q2

CCA Matrix: 2012Q2

	Q	CCA	Title
05000298/FIN-2011004-01	2011Q3	H.7	Failure to Place the Essential Service Water System Strainers in (a)(1)
05000298/FIN-2011004-02	2011Q3		Failure to Scope Reactor Building Drain Components and Steam Exclusion Doors that Affect Safety-related Systems in the Maintenance Rule Monitoring Program
05000298/FIN-2011004-03	2011Q3	H.8	Failure to Assess and Manage Risk for Maintenance Near Electrical Towers That Could Impact Initiating Events
05000298/FIN-2011004-04	2011Q3	P.3	Failure to Assess and Manage Risk for Maintenance Near an Operating Reactor Feed Pump That Could Impact Initiating Events
05000298/FIN-2011004-05	2011Q3	H.12	Failure to Follow Procedure Results in Personnel Contamination
05000298/FIN-2011004-06	2011Q3	P.2	Failure to Identify, Correct, and Prevent Recurrence of a Significant Condition Adverse to Quality
05000298/FIN-2011004-07	2011Q3		Inadequate Procedure Results in Inoperable Essential Pump
05000298/FIN-2011005-07	2011Q4	H.14	Failure to Perform Required 10 CFR 50.59 Evaluations for Changes
05000298/FIN-2011005-04	2011Q4		Failure to Provide Complete and Accurate Solid Radwaste Shipment Information in Annual Reports
05000298/FIN-2011202-02	2011Q4		Security
05000298/FIN-2011005-06	2011Q4	P.2	Failure to Correctly Translate Design Requirements into Installed Plant Configuration
05000298/FIN-2011005-05	2011Q4	P.1	Failure to Identify Deficient Performance During a Single-Facility Drill
05000298/FIN-2011005-03	2011Q4	H.12	Failure to Follow Procedures for Dose Rate Alarms Received by Two Individuals
05000298/FIN-2011005-02	2011Q4	H.2	Failure to Maintain Control and Continuous Coverage of a Posted Locked High Radiation Area
05000298/FIN-2011005-01	2011Q4	H.2	Failure to Conspicuously Post a High Radiation Area
05000298/FIN-2012002-08	2012Q1	H.2	Failure to Follow Station Procedure Results in Inadequate Work Instructions
05000298/FIN-2012002-07	2012Q1		Failure to Furnish Evidence of an Activity Affecting Quality
05000298/FIN-2012002-06	2012Q1	H.14	Failure to Follow Radiation Work Permit Requirements
05000298/FIN-2012002-05	2012Q1	H.7	Unevaluated Pre-conditioning for Core Spray Motor-operated Valves prior to Conducting As Found In-service Surveillance Testing
05000298/FIN-2012002-03	2012Q1	H.12	Failure to Appropriately Manage Risk for Maintenance in the Stations Switchyard
05000298/FIN-2012002-02	2012Q1	P.2	Failure to Scope Required Components in the Stations Maintenance Rule Monitoring Program
05000298/FIN-2012002-01	2012Q1	P.2	Failure to Maintain Design Control for Internal Flooding
05000298/FIN-2012002-04	2012Q1		Failure to Maintain Design Control of Standby Liquid Control System
05000298/FIN-2012404-02	2012Q2	H.7	Security
05000298/FIN-2012404-01	2012Q2	H.14	Security
05000298/FIN-2012007-06	2012Q2	P.2	Failure to Incorporate all Design and Technical Data Available into the Operability Determinations for the Standby Liquid Control Tank and Test Tank
05000298/FIN-2012007-05	2012Q2	P.3	Failure to Have an Adequate Procedure for Erecting Flood Barriers
05000298/FIN-2012007-04	2012Q2		Failure to Establish a Preventative MaintenanceProgram for Molded Case Circuit Breakers
05000298/FIN-2012007-03	2012Q2		Failure to Address the Design Bases of the Battery Chargers Following Identification of an Undersized Fused Disconnect Switch Connecting the Swing Battery Chargers to the Direct Current (DC) Buses
05000298/FIN-2012007-02	2012Q2	H.14	Failure to Provide Adequate Resistance Values for the Preventative Maintenance of the Non-Segregated Phase Bus Duct
05000298/FIN-2012007-01	2012Q2	H.2	Failure to Adequately Analyze Seismic Requirements for Service Water instrument Rack
05000298/FIN-2012003-14	2012Q2	H.14	Failure to Use Design-Basis Parameter Values in Design-Related Calculations
05000298/FIN-2012003-13	2012Q2	H.14	Fail to Correct a Condition Adverse to Quality for Determining the Number of Multiply Starts for a Single Diesel Generator Starting Air Accumulator
05000298/FIN-2012003-12	2012Q2	H.14	Failure to Maintain Design Control of the Essential Ventilation System
05000298/FIN-2012003-11	2012Q2	H.5	ALARA Program Failed to Prevent Unintended Doses for Refueling Floor Activities, Outage RE26
05000298/FIN-2012003-10	2012Q2	H.13	Failure to Perform a Radiation and Contamination Survey
05000298/FIN-2012003-09	2012Q2	H.14	Failure to Follow Radiation Work Permit Requirements
05000298/FIN-2012003-08	2012Q2	P.2	Non-conservative Service Water Booster Pump A and D Differential Pressure Operability Limits During In-Service Surveillance Testing
05000298/FIN-2012003-07	2012Q2	H.14	Failure to Evaluate Changes for Adverse Impacts
05000298/FIN-2012003-06	2012Q2	H.8	Design Changes Not Appropriately Approved by the Licensee
05000298/FIN-2012003-05	2012Q2		Failure to Furnish Evidence of an Activity Affecting Quality
05000298/FIN-2012003-04	2012Q2	P.2	Failure to Maintain Design Control of the Standby Liquid Control System and Sumps Credited in the Internal Flooding Analysis
05000298/FIN-2012003-03	2012Q2	H.14	Failure to Recognize the Need for An Evaluation and to Properly Document the Bases for Operability
05000298/FIN-2012003-02	2012Q2	H.14	Failure to Ensure Compliance with the Requirements of Station Troubleshooting Procedure
05000298/FIN-2012003-01	2012Q2	H.7	Failure to Perform Adequate Postmaintenance Testing

Self-Identified List (Cooper)

	Q	Title
05000298/FIN-2011005-08	2011Q4	Licensee-Identified Violation
05000298/FIN-2011005-09	2011Q4	Licensee-Identified Violation
05000298/FIN-2012003-15	2012Q2	Licensee-Identified Violation
05000298/FIN-2012003-16	2012Q2	Licensee-Identified Violation
05000298/FIN-2012404-03	2012Q2	Security
05000298/FIN-2012404-04	2012Q2	Security

[Cooper Findings full list]

05000298/FIN-2012007-02

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