05000282/FIN-2012002-03

Finding

Title

Failure to Properly Assess Operability of D2 EDG following Surveillance Testing

Description

A finding of very low safety significance and an NCV of TS 3.8.1 was identified by the inspectors on February 23, 2012, due to the licensees failure to properly assess the continued operability of the D2 emergency diesel generator (EDG) following monthly surveillance testing. As a result, the D2 EDG was incorrectly declared operable with a known equipment deficiency. Corrective actions for this issue included declaring the D2 EDG inoperable, repairing the equipment deficiency, and requiring operability decisions to be reviewed by the shift manager. The inspectors determined that this finding was more than minor because it was associated with the human performance and equipment performance attributes of the Mitigating Systems Cornerstone. In addition, the performance deficiency impacted the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The inspectors determined that this finding was of very low safety significance because each of the questions listed under the Mitigating Systems Cornerstone column of IMC 0609.04, Table 4A could be answered no. The inspectors determined that this finding was cross-cutting in the Human Performance, Decision Making area because the licensee did not make a safety-significant and/or risk-significant decision using a systematic process when faced with uncertain or unexpected plant conditions to ensure that safety was maintained

03
Site:	Prairie Island
Report	IR 05000282/2012002 Section 1R15
Date counted	Mar 31, 2012 (2012Q1)
Type:	NCV: Green
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71111.15
Inspectors (proximate)	C Moore C Thomas D Passehl D Szwarc J Beavers J Jandovitz K Riemer K Stoedter M Phalen P Zurawski R Langstaff V Myers A Dunlop A Shaikh
CCA	H.13, Consistent Process
INPO aspect	DM.1
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v • d • e

Finding - Prairie Island - IR 05000282/2012002

1(0)2(13)3(6)4(2)5(11)7(3)8(0)9(0)10(0)11(3)301(0)402(1)403(0)404(0)406(0)501(0)503(0)504(1)

IR 05000282/2012002: 1 2 3 4 5 7 8 9 10 11 12 13 6

Finding List (Prairie Island) @ 2012Q1

CCA Matrix: 2012Q1

	Q	CCA	Title
05000306/FIN-2011004-03	2011Q3	H.8	Failure to Make Eight Hour Report Pursuant to 10 CFR 50.72
05000306/FIN-2011004-06	2011Q3		Failure to Provide Complete and Accurate Information in a Licensee Event Report
05000306/FIN-2011004-01	2011Q3	H.14	Radiation Monitors Not Fully Scoped Into or Assessed by the Maintenance Rule Program
05000306/FIN-2011004-02	2011Q3	H.8	Corrective Action Assignments Closed Without Completion of Tasks
05000282/FIN-2011004-04	2011Q3	H.8	Failure to Make Eight Hour Report Pursuant to 10 CFR 50.72
05000282/FIN-2011004-07	2011Q3		Failure to Provide Complete and Accurate Information in a Licensee Event Report
05000306/FIN-2011004-08	2011Q3	P.5	Unit 2 Reactor Trip due to Mis-operation of Substation Breakers
05000306/FIN-2011004-05	2011Q3		Failure to Incorporate Revised Battery Room Temperature Information into Existing Operability Recommendation
05000282/FIN-2011012-01	2011Q4		Flammable Gas Bottles Installed and/or Stored in the Auxiliary Building
05000306/FIN-2011005-01	2011Q4		Potential Technical Specification NON-COMPLIANCE While Completing Repairs on Motor Damper 32421
05000306/FIN-2011005-03	2011Q4		Potential Maintenance Rule Scoping Issue for Residual Heat Removal Pump Pit Sump Pumps and Level Switches
05000306/FIN-2011005-05	2011Q4		Potential Safety System Functional Failure Due to Steam Exclusion Damper Issues
05000306/FIN-2011005-02	2011Q4		Appendix R Fire Barrier Degraded Between Fire Areas 118 and 128
05000282/FIN-2011405-01	2011Q4	H.14	Security
05000282/FIN-2011012-02	2011Q4	H.13	Failure to Correct a Condition Adverse to Quality
05000306/FIN-2011005-04	2011Q4	H.14	Failure to Complete Immediate Operability Determination on Molded Case Circuit Breakers
05000282/FIN-2012002-08	2012Q1		Unit 2 Manual Reactor Trip During Shutdown for Outage 2R27
05000282/FIN-2012002-02	2012Q1		Review Of Steam Exclusion Damper Maintenance Effectiveness
05000282/FIN-2012002-11	2012Q1	H.12	Inadequate Operational Log Entries
05000282/FIN-2012002-10	2012Q1		Inadequate Three Hour Fire Barrier Between Bus 26 And Bus 27 Rooms
05000282/FIN-2012002-09	2012Q1		Review of Root Cause Evaluation for March 6, 2012, Notice of Unusual Event
05000282/FIN-2012002-07	2012Q1	P.3	Failure to Timely Activate ERDS
05000306/FIN-2012002-06	2012Q1	H.10	Failure to Timely Augment the On-Shift Staffing
05000282/FIN-2012002-05	2012Q1	H.2	Failure to Implement Procedure Use and Adherence Requirements While Draining Sodium Hypochlorite Draw Down Tank
05000282/FIN-2012002-04	2012Q1	H.14	Failure to Assess Operability of Circuit Breakers due to Inadequate Lubrication
05000282/FIN-2012002-03	2012Q1	H.13	Failure to Properly Assess Operability of D2 EDG following Surveillance Testing
05000282/FIN-2012002-01	2012Q1	H.5	Breaker 212E-44 Failure due to Lack of Preventive Maintenance

Self-Identified List (Prairie Island)

	Q	Title
05000306/FIN-2011004-09	2011Q3	Licensee-Identified Violation
05000306/FIN-2011005-07	2011Q4	Licensee-Identified Violation
05000282/FIN-2011405-02	2011Q4	Security
05000306/FIN-2011005-06	2011Q4	Licensee-Identified Violation
05000306/FIN-2011005-08	2011Q4	Licensee-Identified Violation
05000306/FIN-2011005-09	2011Q4	Licensee-Identified Violation
05000282/FIN-2012002-13	2012Q1	Licensee-Identified Violation
05000282/FIN-2012002-12	2012Q1	Licensee-Identified Violation

[Prairie Island Findings full list]

05000282/FIN-2012002-03

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