ML20236F358
| ML20236F358 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 06/26/1998 |
| From: | Dapas M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Paperiello C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 9807020128 | |
| Download: ML20236F358 (7) | |
Text
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A8 887 UNITED STATES NUCLEAR RE2ULATORY COMMISSION
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REGION lli l
E 801 WARRENvlLLE ROAD LISLE, ILLINOIS 60532-4351 i
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June 26, 1998 MEMORANDUM TO:
Carl J llo, Acting Regional Administrator FROM:
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arc L. Dapas, Deputy Director, Division of Reactor Projects
SUBJECT:
DAVIS BESSE RESTART ACTION PLAN The NRC Restart Panel for the Davis Besse Station is using NRC Inspection Manual Chapter (MC) 0350, " Staff Guidelines for Restart Approval," for oversight activities for the Davis Besse Station. The Davis Besse Restart Panel has initiated the implementation of the MC and, as a result, has developed the attached Restart Action Plan and submits it for your review and approval. The Restart Action Plan status will be updated on an as-required basis.
Minor revisions will be made by the Panel, as appropriate, without seeking additional formal approval from you.
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The Restart Action Plan consists of three sections. The first section," General," provides the j
purpose of the Plan and background information. The second section," Case-Specific Checklist-Part I, NRC Restart Review Process," includes the MC 0350 checklist of items to consider during the overall review process for coordination of the NRC authorization for restart of Davis Besse.
The third section, " Case-Specific Checklist - Part II, Specific Restart Review issues," includes the MC 0350 checklist for assessment of the issues that the Panel considers integral to the shutdown and which require NRC assessment prior to restart.
Your concurrence is considered approval for implementation and distribution.
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kIs June 26.1998 CarlJ. Pappriello Date Acting Regional A ministrator, Region ill
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Docket No:
50-346 k
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Attachment:
Davis Besse Restart Action Plan CONTACT: M. Leach, DRS (630) 829-9705 See Attached Distribution e
9807020128 980626 7
PDR ADOCK 05000346 P
June 26, 1998 MEMORANDUM TO:
Carl J. Paperiello, Acting Regional Administrator FROM:
Marc L Dapas, Deputy Director, Division of Reactor Projects
/s/ Marc L. Dapas
SUBJECT:
DAVIS BESSE RESTART ACTION PLAN The NRC Restart Panel for the Davis Besse Station is using NRC Inspection Manual Chapter (MC) 0350, " Staff Guidelines for Restart Approval," for oversight activities for the Davis Besse Station. The Davis Besse Restart Panel has initiated the implementation of the l
MC and, as a result, has developed the attached Restart Action Plan and submits it for your l
review and approval. The Restart Action Plan status will be updated on an as-required basis.
Minor revisions will be made by the Panel, as appropriate, without seeking additional formal approval from you.
The Restart Action Plan consists of three sections. The first section," General," provides the i
purpose of the Plan and background information. The second section, " Case-Specific Checklist -
Part I, NRC Restart Review Process," includes the MC 0350 checklist of items to consider during I
the overall review process for coordination of the NRC authoriz.ation for restart of Davis Besse.
The third section, " Case-Specific Checklist - Part II, Specific Restart Review issues," includes the MC 0350 checklist for assessment of the issues that the Panel considers integral to the shutdown and which require NRC assessment prior to restart.
Your concurrence is considered approval for implementation and distribution.
/s/ Carl J. Paperiello June 26.1998 CarlJ. Paperiello Date Acting Regional Administrator, Region til Docket No:
50-346
Attachment:
Davis Besse Restart Action Plan l
CONTACT: M. Leach, DRS l
(630) 829-9705 l
See Attached Distribution DOCUMENT NAME: R:
To receive a copy of thle document. Indicate in the boa *C* = Copy without ottachment/ enclosure *E* = Copy with attachnwnt/ enclosure
- N" = No copy OFFICE Rill E
i NAME Leach:dM..Dapas/[ Carpe $h Bodr[
Pakekello DATE 060098 06/$98 06M98 06M98 06M/98 l
O A RECORD COPY pe Pee Mw w/4.lesex FF r
C. Paperiello Distribution:
S. Collins, NRR B. Sheron, NRR -
E. Adensam, NRR F. Miraglia, NRR
- R. Zimmerman, NRR Project Manager, NRR G. Tracy, OEDO Deputy RA, Rlli
- Docket File PUBLIC :
SRI Davis Besse i
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NRC INSPECTION MANUAL 0350 RESTART PLAN FOR DAVIS BESSE LOSS OF OFFSITE POWER DUE TO TORNADO ON JUNE 24,1998 General On June 24,1998, the Davis Besse Nuclear Plant suffered damage from a tornado that caused a loss of offsite power. The emergency diesel generators started and provided power to vital ereas i
of the plant. An NRC Specialinspection Team was dispatched to the site. High temperatures i
and a shortage of electrical power to the Midwest created an urgent need for restoration from the damage to the plant and retum to power production, but without compromise of safety. To ensure that the inspection activities are properly coordinated and that all aspects of this event are clearly understood and communicated to appropriate organizations, a review of the criteria l
contained in MC 0350, Appendix A," Generic Restart Checklist,"was conducted. In evaluating l
the criteria contained in MC 0350 for this event, many of the tasks specified in the Manual j
Chapter were in progress or completed. For example, the initial notification of the relevant facts
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to NRC management, federal agencies, and state and local organizations was completed. Two j
NRC preliminary notifications and two status summaries were issued. However, some criteria from MC 0350, Appendix A, were considered to not be applicable for plant restart of Davis Besse. The following modified considerations are to be used in authorizing restart of the plant.
Case Specific Checklist. Part 1: NRC Restart Review Process B.4.2 Assessment of Eauipment Damaae Task Status Comments Licensee assess damage to systems and components i
NRC evaluates licensee damage assessment Licensee determines corrective actions NRC evaluates corrective actions (including adequacy of emergency response capabilities)
B.4.3 Determine Restart issues and Resolution Task Status Comments Review / evaluate licensee generated restart issues Independent NRC identification of restart issues
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NRC/ licensee agreement of restart issues -
Evaluate licensee's restart issues implementation B 4.5 Closeout Actions -
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Task:
Status Comments Evaluate licensee's restart '
readiness assessment i
NRC evaluation of applicable items from Section C "lSSUES" complete -
Restart issues closed B.5 Restart Authorization Task.
Status:
Comments Prepare restart authorization document and basis for restart-No restart objections from nther applicable HQ offices No restart objections from.
applicable Federal agencies
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NRC 0350 Panel approves Restart Authorization Regional Administrator concurs in Restart
. Authorization -
NRR Office Director concurs in Restart Authorization EDO concurs in Restart Authorization
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I B.6 Restart Authorization Notification' Task -
Status Comments Applicable Federal Agencies Public Affairs
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State and local officials.
Case Specific Checklist. Part 2: Specific Restart Review Issues
. C.1.1 Event Analysis and Root Cause Determination i
Task-Status Comments Conditions leading up to the shutdown are understood and defined in a chain of events or similar chronology. T l-l Potential root causes of the -
l conditions requiring the l
shutdown and associated problems were thoroughly evaluated i
The scope and analysis f:
considered the applicability of related events on similar l
systems, structures, and components Equipment damage l.
assessment was thorough L
and comprehensive i
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C1.2 Corrective Action Development Task Status Comments Corrective actions include i
restoring systems and j
equipment to service and l
verifying performance through jg post-maintenance or post-modification testing ;
Performed safety evaluations that ensure that corrective actions did not result in a loss of safety margin.
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Expanded the scope of the corrective actions to consider all causal factors :
inteim corrective actions l
have been developed and documented when permanent corrective action will take an -
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excessive period of time.
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. C.4 Assessment of Physical Readiness of the Plant Task-Status Comments Significant hardware issues resolved (damaced l
equipment)
L Operability of Technical Specification systems i
Operability of required secondary and support systems l
Results of necessary system testing.
Adequacy of system lineups C.6 Coordination with Interested Aaencies and Parties l
Organization Status -
Comments -
Federal Emergency Region ill will notify -
Management Agency Appropriate State and Local Region ll1 will notify L
Officials r.
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