05000352/FIN-2011004-04: Difference between revisions

Finding

Title

LICENSEE-IDENTIFIED Violation

Description

10 CFR 50.54(q) requires, in part, that a power reactor licensee follow an emergency plan that meets the requirements of 10 CFR 50.47(b) and Appendix E to 10 CFR Part 50. Contrary to the above, Exelon did not make timely notification when the emergency action level threshold was met for HU5, Natural and Destructive Phenomena Affecting the Protected Area. Specifically, Exelon operators did not declare an Unusual Event within the required fifteen minutes of the earthquake felt onsite on August 23. The actual declaration was nine minutes late. At 1:51 PM, control room operators received a Seismic Monitor System Recording Activated alarm coincident with reports of seismic activity felt by station personnel. The seismic monitoring system at Limerick had previously been declared inoperable due to problems with its power supply, so operators began the compensatory measures which directed the operators to contact the United States Geological Survey to confirm the epicenter and magnitude of the seismic event prior to event classification. The United States Geological Survey has a call queue system to answer inquiries in an orderly manner, and Exelon was on hold until 2:11 PM. Exelon declared the Unusual Event at 2:15 PM and made all appropriate state and local notifications. Exelon entered the untimely event declaration into their corrective action program as IR 1254845. The inspectors determined that the finding was of very low safety significance (Green) in accordance with NRC IMC 0609, Appendix B, Emergency Preparedness Significance Determination Process, Sheet 2, because this was related to an actual event implementation problem for a Notice of Unusual Event.

04
Site:	Limerick
Report	IR 05000352/2011004 Section 4OA7
Date counted	Sep 30, 2011 (2011Q3)
Type:	NCV: Green
cornerstone	Emergency Prep
Identified by:	Licensee-identified
Inspection Procedure:
Inspectors (proximate)	K Mangan N Sieller S Hammann T Moslak A Rosebrook A Ziedonis D Roberts E Dipaolo E Miller J Ambrosini J Kulp J Lilliendahl J Nicholson
INPO aspect
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v • d • e

Finding - Limerick - IR 05000352/2011004

1(0)2(2)3(3)4(4)5(1)7(1)8(1)403(0)404(0)501(0)502(0)503(2)9(0)15(0)

IR 05000352/2011004: 2 3 4 1

Finding List (Limerick) @ 2011Q3

CCA Matrix: 2011Q3

	Q	CCA	Title
05000352/FIN-2010007-01	2010Q4		Failure to Update UFSAR Consistent With Plant Conditions as Required
05000352/FIN-2010007-02	2010Q4	P.3	Three of Four RHR Unit Coolers Unreliable due to Planned and Unplanned Conditions (Silting)
05000352/FIN-2010403-01	2010Q4	H.8	Security
05000352/FIN-2011002-01	2011Q1	P.2	Failure to Address Repeat TS Response Time Test Failures
05000352/FIN-2011003-01	2011Q2	H.12	Failure to Position Recirculation lsolation Valves in Accordance with Clearance
05000352/FIN-2011003-03	2011Q2	P.4	Failure to ldentify Adverse Trend regarding Out-of-Calibration lnstrumentation
05000352/FIN-2011008-01	2011Q2		Station Blackout Licensing Basis Assumed Alternate AC Power Source.
05000353/FIN-2011004-01	2011Q3	H.6	Failure of Feedwater MOV Resulting in RCIC Inoperability for Longer than Allowed by Technical Specifications
05000352/FIN-2011503-01	2011Q3		(Traditional Enforcement) Changes to EAL Basis Decreased the Effectiveness of the Plan without Prior NRC Approval
05000352/FIN-2011004-02	2011Q3	H.13	Failure to Provide Adequate Restoration Instructions for Turbine Control Valve Online Maintenance
05000352/FIN-2011004-03	2011Q3		Test Equipment Interference Resulting in Reactor Scram
05000352/FIN-2011503-02	2011Q3		Changes to EAL Basis Decreased the Effectiveness of the Plan without Prior NRC Approval.

Self-Identified List (Limerick)

	Q	Title
05000352/FIN-2011002-02	2011Q1	None
05000352/FIN-2011003-04	2011Q2	Licensee-Identified Violation
05000352/FIN-2011004-04	2011Q3	Licensee-Identified Violation

[Limerick Findings full list]

@@ Line 1: / Line 1: @@
 {{finding
-| title = Licensee-Identified Violation
+| title = LICENSEE-IDENTIFIED Violation
 | docket = 05000352, 05000353
 | inspection report = IR 05000352/2011004

05000352/FIN-2011004-04: Difference between revisions

Revision as of 22:13, 29 May 2018

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05000352/FIN-2011004-04: Difference between revisions

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