ML20235Y060

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Confirms 840328 Telcon Re Invitation of I Yin to Discuss Plant Small & Large Bore Piping Issues at ACRS 840406 Meeting in Washington,Dc.Nrc & Util Will Address Same Issues.Nj Palladino 840614 Comments Before Us Congress Encl
ML20235Y060
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 03/29/1984
From: Fraley R
Advisory Committee on Reactor Safeguards
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20235X756 List:
References
FOIA-84-743, FOIA-84-744, FOIA-84-776 ACRS-GENERAL, NUDOCS 8710200204
Download: ML20235Y060 (5)
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NUCLEAR REGULATORY COMMISSION AovisORY COMMITTEE ON REACTOH SAFEGUARDS wasmNoTon, o. c. 20sse - g

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MEMORANDUM FOR: James G. Xeppler, Regional Administrator, Region III W

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FROM:- Raym . , ecutive Director ACRS ./

SUBJECT:

ACRS MEETING ON APRIL 6, 1984 REGARDING DIABLO CANYON PIPING DEFICIENCIES This memo is to confirm my telephone call to you yesterday to invite Mr. Isa Yin to meet with 'the ACRS next Friday (April 6,1984) to discuss the issues he has rdised With respect to the small bore and large bore piping at the Diablo Canyon Nuclear Plant. We have set aside four hours' from 8:30 A.N. to 12:30 P.M. for the Cc mittee to consider this matter. If necessary, additional time can be made available. We have tentatively scheduled an hour for a presentation and discussion with Mr. Yin regarding his specific diccerns from 8:40 A.M. to 9:40 A.M. and request that during this period he idee fy the specific deficiencies that are of conce.n, their significar.ce, and any poposed resolution to the degree he is able L do so. It would be helpful if he can time his presentation for 30-40 minutes with the remainder for questions and round-table' discussion.

Additional time can be made available if needed. We expect that representatives t of the NRC Staf f dnd Pacific Gas & Electric will be asked to address these l issues also, it would be helpful if Mr. Yin would remain for the whole meeting to respund to any issues which might need his input. Since ACRS meetings frequently extend beyond the scheduled termination time, it would probably be wise to plan on leaving no earlier than 2:30 P.M.

The meeting will be held in Room 1094-H in the Matomic Building at 1717 H Street, NW, Washington, D.C. When Mr. Yin arrives, he should ask for me or_ John McKinley so that we can check to see what he needs. It would be helpful to the Comittee l

if we could obtain copies of his presentation prior to the meeting en Friday so we can make them available to the Cocolittee members before his presentation.

I We appreciate your support with respect to this meeting and the participation by Mr. Yin, particularly since we are operating on a compressed time scale in setting up this session.

Raymond F. Fralev _

29 E M M 33 Executive Director ACRS:

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I' OPENING REMARKS 0F NUNZIO J. PALLADINO ,

CHAIRMAN U.S. NUCLEAR REGULATORY COMMISSION BEFORE THE.

SUBCOMMITTEE ON ENERGY AND THE~ ENVIRONMENT COMMITTEE ON INTERIOR AND INSULAR AFFAIRS

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UNITED STATES HOUSE OF REPRESENTATIVES ON DIABLO CANYON LICENSING CONCERNS JUNE 14,1984 O

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MR. CHAIRMAN, WE ARE PLEASED TO BE HERE TODAY TO ADDRESS THE

' MATTERS STATED IN YOUR LETTER OF MAY 23 REGARDING THE DI ABLO CANYON NUCLEAR POWER PLANT AND TO'REGPOND TO YOUR QUESTIONS.. I AM ACCOMPANIED BY MY' FELLOW COMMISSIONERS. AS YOU REQUESTED, WE ALSO HAVE PRESENT' OUR PRINCIPAL STAFF INVOLVED IN THE SAFETY I'

REVIEW AND - LICENSING DECISIONS 'ON THE DI ABLO CANYON PLANT.

WILL BRIEFLY SUMMARIZE EVENTS AND ACT'ONS ! SINCE WE LAST MET WITH

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YOU ON THIS TOPIC IN JANUARY OF THIS YEAR AND THEN ASK HAROLD DENTON, DIRECTOR OF THE OFFICE OF NUCLEAR REACTOR REGULATION, TO COMMENT MORE FULLY.

i AS YOU WILL RECALL, ON NOVEMBER 8, 1983 THE COMMISSION REINSTATED'THE PACIFIC GAS AND ELECTRIC'S AUTHORITY TO LOAD-FUEL AND CONDUCT COLD SYSTEM TESTING. ON JANUARY 25 0F THIS YEAR WE AUTHORIZED HOT SYSTEM TES. TING. 'THIS WAS FOLLOWED BY COMMISSION 4

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2 MEETINGS ON MARCH 26 AND 27 TO HEAR FROM THE STAFF ON THE STATUS

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OF DIABLO CANYON UNIT 1 AND, .IN PARTICULAR, TO DECIDE WHETHER TO i

l REINSTATE THE LOW-POWER LICENSE TO ALLOW CRITICALITY AND-TESTING

! AT LEVELS UP TO 5 PERCENT OF RATED POWER.

l AT THAT TIME, A MEMBER OF THE NRC STAFF, MR. ISA YIN, INFORMED THE COMMISSION THAT, BASED ON HIS FINDINGS FROM HIS INSPECTION

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ACTIVITIES, HE COULD NOT RECOMMEND TO US THAT THE LOW POWER i

LICENSE BE REINSTATED, AFTER A THOROUGH EVALUATION OF THESE CONCERNS BY A SPECI ALLY ASSIGNED REVIEW GROUP ( APPOINTED BY THE EXECUTIVE DIRECTOR FOR OPERATIONS) AND THE ADVISORY COMMITTEE ON REACTOR SAFEGUARDS, THE COMMISSION , REINSTATED THE LOW-POWER LI' CENSE ON APRIL 13i ~ 1984, WI'TH SOME ADDITIONAL LICENSE CONDITIONS PERTAINING TO THESE CONCERNS.

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THE DIABLO CANYON REACTOR SUBSEQUENTLY WENT CRITICAL ON APRIL

29. LOW-POWER TESTING' WAS COMPLETED ON MAY 23. THAT

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o ESSENTIALLY SUMMARIZES EVENTS UNTIL THE RECEIPT OF'YOUR MAY 23 .3 LETTER 0F INVITATION. ON . JUNE 8, :PG8E INFORMED US THAT THE PLANT WOULD BE READY FOR POWER ASCENSION ON JUNE 19. -A NUMBER I .

~ OF . ISSUES . REMAIN TO BE ADDRESSED AND ALL MATTERS OF SAFETY SIGNIFICANCE NEED TO BE RESOLVED BEFORE ANY. COMMISSION DECISION ON WHETHER TO PERMIT FULL POWER OPERATION OF THE DIABLO CANYON ,

j PLANT. BECAUSE FULL POWER OPERATION 'IS A MATTER WHICH- THE l

COMMISSION MUST REVIEW IN ITS ADJUDICATO,RY CAPACITY. AND SHOULD l

NOT PREJUDGE OR APPEAR TO PREJUDGE IN'ANY WAY, I HAVE ASKED MR.-

DENTON ON BEHALF OF THE STAFF TO REPORT,BRIEFLY ON THE STATUS'0F THESE REMAINING ISSUES. FOLLOWING HIS PRESENTATION, THE

-COMMISSION, OR THE- STAFF WHERE . APPROPRI ATE, WOULD BE HAPPY TO ANSWER QUESTIONS. ,

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