ML19210A738

Summarizes 780609 Meeting W/B&W Owner Group Re Permanent Solution to Small Break Problem.Solution Not Acceptable Because Operator Action Required within 10 Minutes of Break & Single Failure at Transfer Switch.Attendee List Encl

ML19210A738
Person / Time
Site:	Arkansas Nuclear, Crystal River, Rancho Seco, Crane
Issue date:	06/16/1978
From:	Vissing G Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 7910310552
Download: ML19210A738 (4)

Text

e MEETING SUM"ARY DISTRIBUTION ORB #4 Arkansas Power & Light Company, Metropolitan Edison Company ATTN: Mr. William Cavanaugh, III ATTN: Mr. J. G. Her.bein Executive Director - Generation Vice President and Construction Department P. O. Box 542 Post Office Box 551 Reading, Pennsylvania 19603 Little Rock, Arkansas 72203 Sacramento Municipal Utility District ATTN: Mr. J. J. Mattimoe Florida Power Corporation Assistant General !!anager ATTN:

Mr. W. P. Stewart and Chief Engineer Director, Power Production 6201 S Street P. O. Box 14042, Mail Stop C-4,

P. O. Box 15830 St. Petersburg, Florida 33733 Sacramento, Califernia 95813 (Do3etF@

R. B er rmG PDR W. Butler L PDR L. Barrett ORB #4 Readin9 Project Manager NRR Readin9 Attorney, OELD E. G. Case 01&E(3)

V. Stello R. Inaram B. Grimes R. Fraley, ACRS(16)

T. Cartar T. B. Abernathy D. Eisenhut J. R. Buchanan A. Schwencer Meeting Summary File D. Ziemann NRC Participant (s)

G. Lear R. Reid (S. Rhow, P. Shemanski, C. Berlinger, L. 01shan, G. Zwetzi, H. Silver, C. Nelson 1493 238 w

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7910810 6 Q

UNITED STATES

'o NUCLEAR REGULATORY COMMisslON g

WASHINGTON D. C. 20555 o

g/h6[/7 Dockets Nos. 50-313 5-50-280 -

and 2

LICENSEES: Babcock & Wilcox Owner's Group consisting of Arkansas Power and Light Company, Florida Power Corporation, Metropolitan Edison Company and Sacramento Municipal Utility District FACILITIES: Arkansas Nuclear One - Unit 1, Crystal River Unit No. 3, Three Mile Island 1 and 2, and Rancho Seco MEETING WITH B&W OWNER'S GROUP MNCERNING PERMANENT SOLUTION TO SMALL BREAX PROBLEM, JUNE 9, 1978 Introduction

. is a list of attendees.

The purpose of the meeting was to discuss a proposed permanent solution to the small break problem.

The proposed solution to the small break problem consisted of (1) opening the cross over valve, (2) powering the motor operated injection valves from either division through a manual actuated (from the control rooms) transfer switch (attachment 2).

Conclusion The staff advised that the proposed solution was not acceptable as a permanent solution because (1) operator action was required within 10 minutes of the break and (2) of a single failure at the transfer switch.

However, the proposed solution could be acceptable as an interim solution until the pennanent solution was accepted if the single failure could be eliminated.

uy Viss oject Manager Operating Reactors Branch #4 Division of Operating Reactors 1493 239

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LIST OF ATTENDEES MEETING OF 6/9/78 Name Oraanization S. C. Rhow NRR/ DOR /PSB Paul Shemanski NRR/ DOR /PSB J. Ted Enos AP&L Donald A. Rueter AP&L Henry Bailey B&W W. E. Potts Met Ed Car 1 H. Berlinger NRR/ DOR /RSB Leonard Olshan NRR/ DOR /RSB Gerald B. Zwetzig NRR/ DOR / ORB #4 Harley Silver NRR/DPfi Chris Nelson NRR/ DOR / ORB #4 Michael E. Ober Gilbert Assoc. for FPC R. W. Reid NRR/ DOR /C-0RB#4 Q. B. DuBois Florida Power Corp.

G. Vissing NRR/ DOR /0RB#4 1493 240 F

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