ML20235Q028

Forwards Safety Evaluation Re Util 880324,0425,0610,0810 & 1006 Responses to NRC Bulletin 88-002, Rapidly Propagating Fatigue Cracks in Steam Generator Tubes. Util Response Acceptable

ML20235Q028
Person / Time
Site:	Mcguire
Issue date:	02/27/1989
From:	Matthews D Office of Nuclear Reactor Regulation
To:	Tucker H DUKE POWER CO.
Shared Package
ML20235Q030	List: ML20235Q028 ML20235Q034 ML20235Q041
References
IEB-88-002, IEB-88-2, NUDOCS 8903020470
Download: ML20235Q028 (3)

Text

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Y s' ,

, February 27, 1989

. s Docket No. 50-370 Mr. H. B. Tucker, Vice President Nuclear Production Department Duke Power Company 422 South Church Street Charlotte, North Carolina 28242

SUBJECT:

MCGUIRE hbCLEAR STATION UNIT 2 - BULLETIN 88-02, FATIGUE CRACKS IN STEAM GENERATOR TUBES The NRC staff has completed review of your actions to resolve NRC Bulletin 88-02, l " Rapidly Propagating Fatigue Cracks in Steam Generator Tubes" for McGuire Unit

2. These actions are identified in your letters dated March 24, April 25, June 10, August 15, and October 6, 1988. -

Our Safety Evaluation Report is enclosed. The SER includes an attachment j containing proprietary information and should be withheld from public disclosure. A non-proprietary version of the attachment is also included which contains the same information except for the exclusion of proprietary information.

We find that your actions taken for McGuire Unit 2 fully resolve the issues identified in the bulletin and are acceptable. This finding is subject to adoption of additional administrative controls as described in the conclusions of the enclosed SER.

Based on the satisfactory resolution of the bulletin issues, you may, at your option, terminate your commitment to the enhanced leak rate monitoring program described in the June 10, 1988 submittal for McGuire Unit 2. Nevertheless, we encourage you to review the leak rate monitoring procedures to ensure the continued effectiveness of these procedures for the timely detection, .

monitoring, and trending of rapidly increasing leak rates.

Our review of your recent response for McGuire Unit 1 is in process and will be addressed separately upon completion. Should you have questions, contact D. Hood at (301) 492-1442.

Sincerely, David B. Matthews, Director Project Directorate II-3 Division of Reactor Projects - I/II r 8

Enclosures:

As stated ggt DISTRIBUTION: w/ encl and Atch 1:

co . Docket File- D. Hood 14-H-25 McGuire Plant File M NRC PDR

L cal PDR E. Murphy C. Y. Cheng 9-H-15

c. " 9-H-15 rsG PDII-3 Reading D. Neighbors 14-B-2

$8 S. Varga 14-E-4 OGC 15-B-18 Op< l Nc G. Lainas 14-H-3 E. Jordan MNBB-3302 8 D. Matthews 14-H-25 B. Grimes 9-A-2 l I

$8 M. Rood 14-H-25 ACRS'(10) P-315 PD I-3 OGC I PDI Pb3 DHood:ls BKi dee DMatthews 2/6/89 2/l5/89 2hM89 2/q/89

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%;,,,,+ February 27, 1989 q

l Docket No. 50-370 Mr. H. B. Tucker, Vice President Nuclear Production Department Duke Power Compony .

422 South Church. Street Charlotte, North Carolina 28242 4 i

SUBJECT:

MCGUIRE NUCLEAR STATION UNIT 2 - BULLETIN 88-02, FATIGUE CRACKS IN STEAM GENERATOR TUBES (TAC 67314)

The' NRC staff has completed review of your actions to resolve NRC Bulletin 88-02,

" Rapidly Propagating Fatigue Cracks in Steam Generatur Tubes" for McGuire Unit

2. These: actions are identified in your letters dated March 24, April 25, June 10, August 15, and October 6, 1988.

Our Safety Evaluation Report is enclosed. The SER includes an attachment l containing proprietary information and should be withheld from public disclosure. A non-proprietary version of the attachment is also included-which contains the same information except for the exclusion of proprietary information.

We' find that your actions taken for McGuire Unit 2 fully resolve the issues  !

identified in the bulletin and are acceptable. This finding is subject to adoption of additional administrative controls as described in the conclusions of the enclosed SER.

i Based on the satisfactory resolution of the bulletin issues, you may, at your l option, terminate your commitment to the enhanced leak rate monitoring program '

described in the June 10, 1988, submittal for McGuire Unit 2. Nevertheless, we encourage you to review the leak rate monitoring procedures to ensure the continued effectiveness of these procedures for the timely detection, monitoring', and trending of rapidly increasing leak rates.

1 Our review of your recent response for McGuire Unit 1 is in process and will be addressed separately upon completion. Should you have questions, contact D. Hood at (301) 492-1442.

Sincerely, et-jyc David B. Matthews, Director T Project' Directorate 11-3 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation I

i

Enclosure:

SER w/2 Atch cc w/ enc 1 and Atch.1:  !

See next page 1

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. Nr. H. g, ry gg,7 l Duke-Power Company: McGuire Nuclear Station cc:

Mr. A.V. Carr, Esq. Dr. John M. Barry Duke Power Company . Department of Environmental Health P. 0. Box 33189 Mecklenburg County 422 South Church Street 1200 Blythe Boulevard Charlotte, North Carolina 28242 . Charlotte, North Carolina 28203-County Manager of Mecklenburg County Mr. Dayne H. Brown, Chief

.,' 720 East Fourth Street Radiation Protection Branch Charlotte, North Carolina 28202 Division of Facility. Services Department of Human Resources 701 Barbour Drive Mr. J. S. Warren Raleigh, North Carolina 27603-2008 Duke Power Company Nuclear Production Department P. O. Box 33189

. Charlotte, North Carolina 28242 J. Michael McGarry, III, Esq.

Bishop, Liberman, Cook, Purcell and:Reynolds-1400 L Street, N.W.

Washington, D. C. 20005 l Senior Resident Inspector c/o' U.S. Nuclear.. Regulatory Commission Route 4, Box 529 Hunterville.. North Carolina 28078 Regional Administrator, Region II U.S. Nuclear Regulatory Comission 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 S. S. Kilborn Area Manager, Mid-South Area ESSD Projects Westinghouse Electric Corporation MNC West Tower - Bay 239

'P. O. Box 355 i Pittsbu'rgh, Pennsylvania 15230 l

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