ML20069D239

Root Cause Evaluation Plan, Review of Millstone Unit 2 Ability to Assess,Classify & Analyze Events

ML20069D239
Person / Time
Site:	Millstone
Issue date:	05/12/1994
From:	Gosselin K NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20069D237	List: ML20069D236 ML20069D239 ML20069D242
References
PROC-940512, NUDOCS 9406030039
Download: ML20069D239 (4)

Text

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• l Docket No. 50-336 ]

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Attachment 1 Millstone Nuclear Power Station, Unit No. 2  !

Root Cause Evaluation Team Plan 4

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l May 1994 )

9406030039 940526 DR ADDCK 05000336 PDR

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Root Cause Evalua ion P!nn

" Review of Millstone Unit 2's Ability to Assess, Classify, and Analyze Events" 1

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l Submitted by:

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Kevin E. Gosselinj Date Lead Evaluator, Root Cause Evaluation Team

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Root Cause Evaluation Plan Page1 1.0 Introduction At the request of the Director Millstone Unit 2 (MP2), a formal root cause investigation of the operational events which resulted in three late Unusual Event Notifications between April 20-23,1994 at MP2 will be performed in accordance with NEO 3.15, " Root Cause Evaluation".

2.0 Problem Statements The Root Cause Evaluation Team will evaluate the following:

i 2.1 MP2's ability to assess, classify and analyze events, and make the appropriate notifications.

2.2 MP2's ability (i.e. management, operations, etc.) to recognize the significance of events.

3.0 Sropte _

3.1 Review the operational aspects of the April 1994 events. Specifically:

a. RCS Leak Event (PIR 2-94-143)

b. Stuck Control Rod Event (PIRs 2-94-144, -145, -146)

c. Insufficient Shutdown Margin Event (PIR 2-94-147) 3.2 Review the Emergency Preparedness aspects of the April 1994 events (i.e. failure to meet MP2 Technical Specifications and the failure to properly use MP2's Emergency Action Level (EAL) Tables) which resulted in three late Unusual Event Notifications between April 20 - 23, 1994.

3.3 Assess the adequacy of MP2's root cause capability.

3.4 Assess the ability of MP2 to identify and ameliorate Control Rod Drive System malfunctions.

4.0 Team Members Nnale Role Iltle Kevin E. Gosselin Lead Evaluator Project Manager, Nuclear Planning Robert J. llanley Member Operations Training Manager - Seabrook Robert J. Kastner Member Engineer, Nuclear Safety Engineering Jeffrey G. Coon Member Engineer, Nuclear Safety Engineering Joseph J. Parillo Consultant Supervisor, Nuclear Fuels Engineering Allan M. Stave Consultant Senior Scientist, Human Factors

Root Cause Evaluation Plan Page 2 5.0 Schedule Esent Date(s) Location Kickoff Meeting May 10,1994 Millstone Scope Problem May 10,1994 Millstone Develop Evaluation Plan May 11,1994 Millstone Data Collection / Interviews May 12-17,1994 Millstone, Berlin Data Analysis May 12-20,1994 Millstone Report Generation May 16-20,1994 Millstone I.csue Final Report May 20,1994 Millstone 6.0 Exceeted Interfaces The following departments will be contacted for written and verbal information:

MP2 Management MP2 Operations MP2 Instrumentation and Controls MP2 Engineering  ?-

MP2 Licensing MP2 Simulator and Operator Training Millstone Emergency Preparedness Department Nuclear Safety Engineering - HPES/ Operating Experience 7,0 Reoort Format The Evaluation Team will issue a single report which addresses the Problem Statements and Scope of this Root Cause Evaluation Plan. The Evaluation Team expects to meet the schedule outlined in Section 5.0; however, should the ,

scope need to be expanded to ensure for proper review, the Director - MP2 and any affected department managers will be promptly notified in accordance with NEO 3.15 Section 6.4.

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