ML20154A762

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Advises That Proposed Experiment Now Prototype Tested to Pressure of 1,000 Psi & Changes Initiated to Significantly Reduce Necessary Hydrostatic Test Pressures,Per Insp Rept 50-020/88-02
ML20154A762
Person / Time
Site: MIT Nuclear Research Reactor
Issue date: 09/06/1988
From: Bernard J
MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CAMBRIDGE
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8809130082
Download: ML20154A762 (1)


Text

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NUCLEAR REACTOR LABORATORY

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AN INTERDEPARTMENTAL CENTER OF

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(AASSACHUSETTS INSTITUTE OF TECHNOLOGY l

O K. HARUNG 138 A'Dany Street Cambruge. Mass 02139 1.. CLAR K. JR, Director (617)253-4 202 Diretor of Reactor Operatons i

September 6, 1988 1

l U.S. Nuclear Regulatory Commission l

Document Control Desk Washington, D.C. 20555 j

Gentlemen:

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Subj e ct: NRC Region I Inspection Report No. 50-20/88-02 As noted in NRC Region I Inspection Report No. 50-20/88-02, no reply to that report was required.

Accordingly, this letter is sub-mitted as an item of information.

Under Section 6 (Experiments) of the aforesaid report, a concern was raised that a proposed experiment

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be prototype tested to a pressure of at least 970 psi.

Please be advised that the proposed experituent has now been ptototype tested to l

a pressure of 1000 psi.

Also, certain changes have now been made to the proposed experiment which significantly reduce the necessary i

hydrostatic test pressures.

These are described in a safety evalua-(

tion report that is being forwarded under separate cover.

Sincerely, kN IW John A. Bernard, Ph.D Director of Reactor Operations Nuclear Reactor Laboratory l

JAB /crh j

I cci USNRC - Region I l

I Chief, Reactor Projects Section IB USNRC - Region I l

L.T. Deerflein, Project Inspection, Section IB j

l USNRC - Resident Inspector, Pilgrim Nuclear Station USNRC - Region I

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Chief James T. Wiggins, Reactor Projects Branch No. 3 l

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8809130082 880906 l

PLR ADOCK 05000020 D

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