ML19224B827

Orders Preservation of All Potential Sources of Data Related to TMI Incident

ML19224B827
Person / Time
Site:	Crane
Issue date:	05/22/1979
From:	Chilk S NRC OFFICE OF THE SECRETARY (SECY)
To:
Shared Package
ML19224B826	List: ML19224B825 ML19224B827
References
NUDOCS 7906270017
Download: ML19224B827 (3)

Text

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SS UNITED STATES OF AMERICA

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NUCLEAR REGULATORY C0". MISSION 7 cf a

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N CC"MISSIONERS:

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Jeseph M. Hendrie, Chairm[

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Victor Gilinsky Richard T. Kennedy "d"

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Peter A. Beadford A7-g g

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ORDER The Comission has begun a wide-ranging investigation into all aspects of the Three Mile Island accident.

This investigation will be one of the major vehicles by which the Cornission will seek to uncever the causes of that acci-dent and te prevent similar accidents.

In order to assure the effectiveness of the investigation it is essential that the investigators have acc=" to every r,

potential source of data that may be relevant to their weri:, and it is' equally essential that these potential sources be retained until such time as the investigators can decide what lines of inquiry to follcw and what data they need.

Accordingly, under the authority of sections 161(.c) and 161(o) of the Atemic En'ergy Act, 42 USC 2201(c) and (o), the Comission hereby orders the preservation of such records.

Until further order all records that may be related to the accident at Three Mile Island, or to understanding of all events incident thereto, shall be preserved intact by persons in possession of such recceds including, but not limited to Metropolitan Edin ua, any (the licensee),

General Public Utilities (its holding company), Babcock & Wilcox CMnv / he t

reactor vendor) and their consultants, agents and employees.

Other ras.c*wr vendors, utilities, corporations, and laboratories who participated in the joint remedial efforts which comenced during and immediately after the accident and che consultants, agents and empicyees of any of the above are to preserve all 254 096 79062700/7

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2 sicilar records for the period co cencing March 28 and continuing through April 33,1973.

Agencies c.f the United States and of the Cocmormealth of Penr.sylvania who assisted in those efforts are requested to preserve any sicilar records in their possession.

The tern " records" is used broadly and is ceant to enexpass all sources of data includi_ng, but not limited to, reports, mecoranda, engineeri ng analyses, experimental results, lists of references consultad, telephone cemorand2, prelicinary drafts of any record, and any similar potential s.su-ce of infomation whether foro.1 or infomal. These records are to be cre2erved inta:t until they are released either by :ne Cor.:nission's investiga-tive au'.horities as authorized' hereafter or by subsequent order of the Co=nis-

sion, De Director of the Cec =f::icr.'s Spoei:1 Inve:tig: tion of

'e Mile Island is authorized to interpret this Order and to authorize excepti t.

The Directar or the Acting 01 ector shall bring to our attention m...

..d ons of this Order or similar tatters believed to require our attention.

It la ao O R D ".A CD.

For the Ccemiss' n l

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S#iUEL d.]DilLK Secretary of ' e Co=nission Dated at Washington, 0",

this 22nd du of May,197C k

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REPORT OUTLINE kI Jur/l besA.

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SUttiARY AND CONCLUSIONS - - - - -

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INTRODUCTION 1

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LIC. BASIS AND REGULATIONS -

FSI : 3r" BULLETINS -- SUM:iARY Jo,3e FINDINGS AND RECOMMENDATIONS __ __ __

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rincipal Design Characteristics - --.

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Main Feedwater Systems

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Auxiliary Feedwater Systems

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Control Systems

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Safety Systems 6.

Instrumentation

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PORVs + Safety Valves ___

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Containment Isolation _._ _ __ _._,

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Challenges to Systems _._._

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PORV

10. Natura ircula tion -

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11. Analysis Considerations f'

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Complete less of Feedwater l

Small Breaks Michelson Concerns

12. ACRS Recommendations _ _

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13. Operator Considerations _ ___

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