ML19317H426

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Forwards Schedules for Util Responses to NRC Re C Michaelson Concerns on Small Break LOCAs
ML19317H426
Person / Time
Site: Oconee, Crystal River  
Issue date: 12/10/1979
From: Capra R
NRC - TMI-2 BULLETINS & ORDERS TASK FORCE
To: Sheron B
NRC - TMI-2 BULLETINS & ORDERS TASK FORCE
References
NUDOCS 8006050539
Download: ML19317H426 (1)
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P00R QUAUTY PAGES December 10, 1979 Docket Nos: 50-302 and 50-259, 50-270, 50-287 MEMORANDUM FOR:

B. Sheron, Analysis Gr t v. Bulletins & Orders Task Force FROM:

R. Capra, BG Pr.oject Mana,er, Project Management Group, Bulletins & Orders Task Force

SUBJECT:

RESPONSES TO CUR RAI ON SMALL BREAK LOCA - MICHAELSON CONCERNS Our letter of November 21, 1979, addressed to All Babcock & Wilcox Operating Plants (Except TMI-l and TMI-2) requested that each licensee respond to specific concerns of Mr. C. Michaelson. A schedule for submitting responses to these questions was requested by December 3, 1979.

Attached are response schedules from Florida Power Corporation ("R-3) and Duke Power Company (0conee 1, 2 and 3).

RESPONSE SCHEDULE TO NRC CONCERN:

FPC DUKE 1

Mechanical effects of slug 01/18/80 02/15/80 Flow on OTSG Tubes 2

Deadhead protection for HPI NA NA pumps at Davis-Besse 1 3

Evaluation of impact of RCP 12/10/79 12/31/79 seal damage on loss of off-site pcwer I will forward the remaining schedules (ANO-1, Davis-Besse and Rancho Seco) when received.

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Enclosures:

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=.3 c om 2 2.:e2 P.r. Harold R. Den:en, Director Office of Nuclear Reac:or Regulatio:

U. S. Nuclear Regulatory Co==ission Washing:on, D. C.

20535 A::en: ion:

Mr. R. W.

Reid, Chief Operating Reactors 3ran:h No. 4 Re: Ccenee Nuclear Station Docke: Nos.50-25s. -270, -237

Dear Sir:

Wi:h regard :o your le::er dated Nove=ber 21, '.979 /-id requesta addi:io=al infor:a:1on ec:cerni=g s=all break loss of ::ala:: ac: Lie::, addi:ional :i=e is required to provide a co=ple:e response :s the 1e::er.

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tubes vill be provided by February.5,1980: a respo:.se :: !:e= 3 addressing RC pu=p seal cooling will be provided by Dece=ber 31,

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mEGULAfCRf INFORwaTION v13 TEISv TI'.. SY S Td n (RIUS)

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CaCIL: 50-302 Crystal River auclear Plan:, uni:

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DISTRI2UTION CCGE: AuJ13 COPIES mECEIVE0:LT-

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n December 3, 1979 File:

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.Mr. Robert W.

Reid Chief Opera:ing Reac: ors Stanch 4 Division of Opera:ing Reactors U. S. Nuclear Regula:ory Co==issics Washing:en, D.C. 20555 Subje :: Crys:al ?fter '.*:i: 3 Docke: No. 50-302 Operating I.icense Nc. CPR-72

Dear.Mr. Reid:

On Nove:bar 26, 1979, Florida Power Co peracion received your le:ter of Nove=ber 21, 1979 requesting addi:ional i-for=a:ios co:cerning s=all break loss of coolan: a:cidents.

Inclosed is our response c schedule for response :o t'a ques: ions con:ained in :he enclosure of your letter.

If any addi: Local infor=a: ion is required concerni:g :his =atter, please Contac: US.

Very ::uly yours, FI4U 1 POWF.R CORPORATION 0

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?,....,, As J. A. E:ncock states that he is the Oire::::, :.uclet: 0; era:i::s, of Florida ?cwer Corp::a: ion; :ha: he is a :hori:ed on :he ;ar of said co:pany :s sign and file vi:h :he :~uciaar ?.agula:: 7 4

Co=sission :he informa:ica at: ached here:o; a:d cha: all such s: ate:ents =ade and :.s::ers set for:h :herti: are ::ue and correct to the bes: of his knowledge, i for:ati:: a:d belief.

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Subscribed and swor: :o before

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No:ary Public

"::ary ?ub:.ic, Sta:e Of Florida a: Large, My 00 ission F.xpires: Augus: 5, 1983 s

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.m Reseonse to Question 1 Florida Power Corpora:1cn has reques:ed :he assis:zn:c Of 35% ::

deter =ine the techanical effec:s of :he induced s' g fi:v :n s:ea:

generator tubes. This effor: is to be co=ple:ed 7.nd sub=1::ed to F?C by January IS, 1990.

Following cur internz; :eviev of the 3&W evaluation, we vill sub=1: this info na:i:n :: y: f or your ree.-lev.

Reseense to Question 2 Not appl 1 cable to Crystal River Uni: 3.

Resoonse to Question 3 Our response to Question 3 vill be sub 1::ed :n Oe:e:her 10, 1979.

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