ML19322C336

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Forwards Safety Evaluation of 780320 Rancho Seco Cooldown Incident.No Structural Damage to Primary Coolant Sys Occurred Precluding Future Operation
ML19322C336
Person / Time
Site: Rancho Seco, Crane
Issue date: 03/30/1978
From: Eisenhut D
Office of Nuclear Reactor Regulation
To: Stello V
Office of Nuclear Reactor Regulation
Shared Package
ML19322C337 List:
References
TASK-TF, TASK-TMR NUDOCS 8001160875
Download: ML19322C336 (1)


Text

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MEMORANDUM FOR:

V. Stello, Jr.~ Acting Assistant Director d

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Division of Operating Reactors NA(2.Cl4 SA NN i

FROM:

D. Eisenhut, Assistant Director

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for Operational Technology

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Division of Operating Reactors p m. ~ ~ _,~,

SUBJECT:

' RANCH 015EC0iNUCLEAR GENERATING STATION - EVALUATION 0F THE NSS C00LDOWN TRANSIENT - DOCKET 50-312 1

The Engineering Branch, Division of, Operating Reactors., has reviewed the information regarding thelMaFchT20.1978 ' reactor; trip;and r.esulting l

3 cooldown transient which is*pe'rtinent to ithe 'structuFallintegrity!of primary coolant system.

We als'o discussed tfiisTevsnt kithlI&Elper'sdnn'elt

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and are, ass.ured that they[' hive ~ considefe'd a'nd/orjeviewed_other;pertin-y

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Lent; systems l ffi$oiclude tstlfitWiMiral~ damage has occurred to the primary coolar.t is ~s'tefa~which w5ul~d preclude future operation of the facility.

4 Attached is our safety evaluatio report.

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(') $ b ((L i D. Eisenhut, Assistant Director for Operational Technology

Enclosure:

As stated Division of Operating Reactors g

cc:

L. C. Shao Fu J. P. Knight i

S. S. Pawlicki J. Guibert

[1 R. Cudlin jb W. Hazelton

U R. Klecker il R. Reed b

J. Zwetzig

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Contact:

W. Hazelton 21 R. Klecker 49-28060 U

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