ML20239A060

Forwards SER Re Licensee 960213,0315 & 0806 Responses to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves. Staff Finds Licensee Adequately Addressed Actions Requested in GL 95-07

ML20239A060
Person / Time
Site:	Sequoyah
Issue date:	08/27/1998
From:	Hernan R NRC (Affiliation Not Assigned)
To:	Scalice J TENNESSEE VALLEY AUTHORITY
Shared Package
ML20239A062	List: ML20239A060 ML20239A063
References
50-327-97-06, 50-327-97-6, 50-328-97-06, 50-328-97-6, GL-95-07, GL-95-7, TAC-M93519, TAC-M93520, NUDOCS 9809080117
Download: ML20239A060 (3)

Text

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.m.  ;- _

. ' August 27, 1998 i-

.1 Mr. J. A.' Scalice y Chief Nucle:r Officerend Executive Vice President Tennessee Valley Authority

~ SA Lookout Place -

1101 Market Street Chattanooga, TN 37402-2801

SUBJECT:

COMPLETlON OF ACTION FOR GENERIC LETTER 95-07 AND

. TRANSMITTAL OF SAFETY EVALUATION OF LICENSEE RESPONSE, SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS. M93519 AND M93520)-

Dear Mr. Scalice:

' On August 17,1995, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 95-07, " Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate ,

Valves," to request that licensees take actions to ensure that safety-related power-operated ):

gate valves that are susceptible to pressure locking or thermal binding are capable of performing their safety functions.

' in a letter dated February 13,1996, theTennessee Valley Authority (TVA) submitted its 180-day response to GL 95-07 for Sequoyah Nuclear Plant, Units 1 and 2. In a letter dated March 15, 1996, TVA supplemented its 180-day response to GL 95-07. The NRC staff reviewed the licensee's submittals and requested additional information in a letter dated July 9,1996. In a letter dated August 6,1996, TVA provided the additional information. During the period of May i 25 through July 5,1997, the NRC staff performed an inspection to review specific aspects of information summarized in the TVA's responses to GL 95-07. This inspection is documented in NRC inspection Report 50-327,328/97-06. In a letter dated December 1,1997, TVA further supplemented its 180-day response to GL 95-07.

The NRC staff has reviewed the licensee's submittals and finds that the licensee has adequately addressed the actions requested in GL 95-07, as discussed in the attached safety evaluation. ,

I If you have any questions regarding this matter, pleaise contact me at 301-415-2010.

L Sincerely, .

/s/

,. .. v - ,. . - l!

Ronald W. Heman, Senior Project Manager w$di id n2A U hlLiwd E d k Project Directorate ll-3 p 9909080117 980827 Division of Reactor Projects - 1/II g-Am O t

[ s Office of Nuclear Reactor Regulation y(0 Docket Nos. 50-327 and 50-328 Distnbution-EatAmtAM ACRS R. Eaton cc : See next page PUBLIC OGC R. Wessman

~ SQN Reading L. Plisco, Ril

.. l' O - J. Zwolinski S. Tingen DOCUMENT NAME: G:\sqn\957close.itr Ta seceive a copy of this document, indicate in the box: "C" = Copy without enclosures "E" = Copy with enclosures "N" = No copy OFFICE PDil-3/PM =a , PDll-3/LA , ,c- PDll-3/PD s C, NAME RHeman l tg BClayton F FHebdon $./

DATE- $/5 /98 F/#/98- F/:n/98

- OFFICIAL RECORD COPY

[f* "*%4 UNITED STATES j ,j l

NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20665 0001

\.....pt August 27, 1998 l Mr. J. A. Scalice l Chief Nuclear Officer and l Executive Vice President I Tennessee Valley Authority 6A Lookout Place l

1101 Market Street

! Chattanooga, TN 37402-2801

SUBJECT:

COMPLETION OF ACTION FOR GENERIC LETTER 95-07 AND TRANSMITTAL OF SAFETY EVALUATION OF LICENSEE RESPONSE, SEQUOYAH NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS. M93519 AND M93520)

Dear Mr. Scalice:

On August 17,1995, the U.S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 95-07, " Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves,"

to request that licensees take actions to ensure that safety-related power-operated gate valves that are susceptible to pressure locking or thermal binding are capable of performing their safety functions.

In a letter dated February 13,1996, theTennessee Valley Authority (TVA) submitted its 180-day response to GL 95-07 for Sequoyah Nuclear Plant, Units 1 and 2. In a letter dated March 15, 1996, TVA supplemented its 180-day response to GL 95-07. The NRC staff reviewed the licensee's submittals and requested additional information in a letter dated July 9,1996. In a letter dated August 6,1996, TVA provided the additionalinformation. During the period of May 25 through July 5,1997, the NRC staff performed an inspection to review specific aspects of information summarized in the TVA's responses to GL 95-07. This inspection is documented in NRC Inspection Report 50-327, 328/97-06. In a letter dated December 1,1997, TVA further supplemented its 180-day response to GL 95-07.

The NRC staff has reviewed the licensee's submittals and finds that the licensee has adequately addressed the actions requested in GL 95-07, as discussed in the attached safety evaluation.

If you have any questions regarding this matter, please contact me at 301-415-2010.

Sincerely, A

l h, W Ronald W. Hernan, Senior Project Manager Project Directorate ll-3 Division of Reactor Projects - 1/11

( Office of Nuclear Reactor Regulation Docket Nos. 50-327 and 50-328 l

cc: See next page l

o Mr. J. A. Scalice SEQUOYAH NUCLEAR PLANT )

Tennessee Valley Authority cc:

Senior Vice President Mr. Pedro Salas, Manager l Nuclear Operations Licensing and Industry Affairs Tennessee Valley Authority Sequoyah Nuclear Plant  ;

6A Lookout Place Tennessee Valley Authority j 1101 Market Street P.O. Box 2000 (

Chattanooga, TN 37402-2801 Soddy Daisy, TN 37379 Mr. Jack A. Bailey Mr. J. T. Herron, Plant Manager I Vice President Sequoyah Nuclear Plant Engineering & Technical Services Tennessee Valley Authority l Tennessee Valley Authority P.O. Box 2000 I 6A Lookout Place Soddy Daisy, TN 37379 1101 Market Street Chattanooga, TN 37402-2801 Regional Administrator U.S. Nuclear Regulatory Commission Mr. Masoud Bajestani Region ll Site Vice President 61 Forsyth Street, SW.

Sequoyah Nuclear Plant Suite 23T85 Tennessee Valley Authority Atlanta, GA 30303-3415 P.O. Box 2000 Soddy Daisy, TN 37379 Mr. Melvin C. Shannon Senior Resident inspector General Counsel Sequoyah Nuclear Plant Tennessee Valley Authority U.S. Nuclear Regulatory Commission ET 10H 2600 Igou Ferry Road 400 West Summit Hill Drive Soddy Daisy, TN 37379 Knoxville, TN 37902 Mr. Michael H. Mobley, Director Mr. Raul R. Baron, General Manager TN Dept. of Environment & Conservation Nuclear Assurance Division of Radiological Health Tennessee Valley Authority 3rd Floor, L and C Annex SM Lookout Place 401 Church Street 1101 Market Street Nashville, TN 37243-1532 Chattanooga, TN 37402-2801 County Executive Mr. Mark J. Burzynski, Manager Hamilton County Courthouse Nuclear Licensing Chattanooga, TN 37402-2801 Tennessee Valley Authority 4X Blue Ridge 1101 Market Street

[

Chattanooga, TN 37402-2801 l

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