05000282/FIN-2012002-08

Finding

Title

Unit 2 Manual Reactor Trip During Shutdown for Outage 2R27

Description

On February 21, 2012, the licensee conducted a normal shutdown in preparation for refueling outage 2R27. When Unit 2 reactor power reached approximately 11.42 percent, operations personnel manually tripped the reactor due to the receipt of high-high level indications and alarms on multiple feedwater heaters. The inspectors were in the control room when the reactor trip occurred. The inspectors observed the operators respond to the event to ensure that the licensees procedures were followed. The inspectors also observed equipment parameters available in the control room to ensure that the reactor and the associated equipment responded as expected following the reactor trip. The licensee documented the need to manually trip the reactor as CAP 1325986. The licensee was continuing to determine the cause of the high-high feedwater heater level at the conclusion of the inspection period. As a result, the inspectors determined that this issue should be considered a URI pending the review of the licensees causal investigation report and the proposed corrective actions.

08
Site:	Prairie Island
Report	IR 05000282/2012002 Section 4OA3
Date counted	Mar 31, 2012 (2012Q1)
Type:	URI:
cornerstone	Mitigating Systems
Identified by:	NRC identified
Inspection Procedure:	IP 71153
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 Shaikhc Moorec Zoia D Betancourt K Riemer K Stoedter P Cardona Morales P Voss P Zurawski S Shah
INPO aspect
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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-2012002-08

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