05000298/FIN-2012003-14

Finding

Title

Failure to Use Design-Basis Parameter Values in Design-Related Calculations

Description

The inspectors identified a non-cited violation of 10 CFR 50, Appendix B, Criterion III, Design Control, associated with the licensees failure to ensure that design bases parameters documented in the Updated Safety Analysis Report were used for station activities. Specifically, the licensee based an operability evaluation and a door breach sensitivity study on a parameter value determined in a calculation instead of the value documented in the Updated Safety Analysis Report because they failed to recognize information in Final Safety Analysis Report Amendment 25 that described the turbine building sidings response to a high energy line break as design bases information. This issue was entered into the licensees corrective action program as Condition Reports CR-CNS-2011-10391 and CR-CNS-2011-11861. The licensees failure to maintain design control when performing an operability evaluation and sensitivity study, with respect to the turbine building high energy line break analysis, is a performance deficiency. This performance deficiency was determined to be more than minor because if left uncorrected, the licensees practice of basing design-related analyses on parameter values that dont represent the design bases has the potential to lead to a more significant safety concern. Specifically, if the licensee bases analyses on a particular parameter value that doesnt represent the design bases and if that parameter value differs from the corresponding design-basis value in a nonconservative manner, then the licensee could reasonably complete an operability assessment based on the nonconservative parameter value and determine that a safety-related system is operable, when an operability assessment based on the design-basis parameter value would have determined that the system is inoperable. As a result, a safety-related system could remain in an undetected inoperable state for an indefinite period of time, and is therefore a finding. Using Inspection Manual Chapter 0609, Attachment 4, Phase 1 - Initial Screening and Characterization of Findings, the inspectors determined this finding has very low safety significance (Green) because it: (1) was not a design or qualification issue confirmed not to result in a loss of operability or functionality; (2) did not represent an actual loss of safety function of system or train; (3) did not result in the loss of one or more trains of nontechnical specification equipment; and (4) did not screen as potentially risk-significant due to seismic, flooding, or a severe weather initiating event. The finding was determined to have a cross-cutting aspect in the area of human performance associated with the decision-making component because the licensee failed to use conservative assumptions in decision making when they failed to recognize and control design bases information.

14
Site:	Cooper
Report	IR 05000298/2012003 Section 4OA5
Date counted	Jun 30, 2012 (2012Q2)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71003
Inspectors (proximate)	G Pick G George L Carson J Josey V Gaddy C Alldredge B Hagar C Henderson
CCA	H.14, Conservative Bias
INPO aspect	DM.2
'
v • d • e

Finding - Cooper - IR 05000298/2012003

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 05000298/2012003: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

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-2012003-14

Navigation menu

Search