ML18038B710
| ML18038B710 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/17/1996 |
| From: | Williams J NRC (Affiliation Not Assigned) |
| To: | Kingsley O TENNESSEE VALLEY AUTHORITY |
| References | |
| GL-95-07, GL-95-7, TAC-M93437, TAC-M93438, NUDOCS 9606190012 | |
| Download: ML18038B710 (6) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055$ 4001 JUPE 1
7 1996
<o - Z<C) go-a<4 t
Mr. Oliver D. Kingsley, Jr.
President, TVA Nuclear and Chief Nuclear Officer Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION GENERIC LETTER 95-07, "PRESSURE LOCKING AND THERMAL BINDING OF SAFETY-RELATED POWER-OPERATED GATE VALVES," BROWNS FERRY NUCLEAR PLANT UNITS 2 AND 3 (TAC NOS.
M93437 AND M93438)
Dear Mr. Kingsley:
In letters dated October 16,
- 1995, December 15,
- 1995, February 13,
- 1996, and'arch 15, 1996, the Tennessee Valley Authority (TVA) provided information responding to Generic Letter (GL) 95-07, "Pressure Locking and Thermal Binding of Safety-Related Power-Operated Gate Valves."
GL 95-07 requested 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.
The NRC staff has reviewed the information provided by TVA, and has determined additional information is required to complete its evaluation.
Through review of operational experience
- feedback, the staff is aware of instances where licensees have completed design or procedural modifications to preclude pressure locking or" thermal binding which may have had an adverse impact on plant safety due to incomplete or incorrect evaluation of the potential effects of these modifications.
Please describe evaluations and training for plant personnel that have been conducted for each design or procedural modification completed to address potential pressure locking or thermal binding concerns.
The information requested by this letter is within the scope of the overall burden estimated in Generic Letter 95-07, which was a maximum of 75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> per
$ 800bV 9606190012 9606f7 PDR ADOCK 05000260
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Mr. Oliver D. Kingsl ey, Jr.
Tennessee Valley Authority BROWNS FERRY NUCLEAR PLANT CC:
Hr. 0. J. Zeringue, Sr. Vice President Nuclear Operations Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Hr. Mark 0. Hedford, Vice President Technical Services Tennessee Valley Authority 6A Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 Hr.
R.
D. Hachon, Site Vice President Browns Ferry Nuclear Plant Tennessee Valley Authority P.O.
Box 2000
- Decatur, AL 35609 General Counsel Tennessee Valley Authority ET IOH 400 West Summit Hill Drive Knoxville, TN 37902 Hr. Raul R. Baron, General,Manager Nuclear Licensing Tennessee Valley Authority 4G Blue Ridge 1101 Market Street Chattanooga, TN 37402-2801 Hr. Pedro Salas Site Licensing Hanager Browns Ferry Nuclear Plant Tennessee Valley Authority P.O.
Box 2000
- Decatur, AL 35609 TVA Representative Tennessee Valley Authority One Massachusetts Avenue, Suite 300 Washington, DC 20001 Regional Administrator U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW., Suite 2900
- Atlanta, GA 30323 Hr. Leonard D. Wert Senior Resident Inspector Browns Ferry Nuclear Plant U.S. Nuclear Regulatory Commission 10833 Shaw Road
- Athens, AL 35611 Chairman Limestone County Commission 310 West Washington Street
- Athens, AL 35611 State Health Officer Alabama Department of Public Health 434 Monroe Street Montgomery, AL 36130-1701
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Oliver D. Kingsley, Jr.
response.
This request is covered by Office of Management and Budget Clearance Number 3150-0011, which expires July 31, 1997.
Please call me at (301)415-1470 if you have any questions regarding this topic.
Sincerely, Original signed by Docket Nos.
50-260, and 50-296 cc:
See next page Joseph F. Williams, Project Manager Project Directorate II-3 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation DISTR I BUTION E. Merschoff Docket File BFN Rdg.
PUBLIC S.
Varga J. Zwolinski OGC ACRS R.
Eaton H. Rathbun NAME:
G: iBFNiM93436. RAI To receive a copy of this document, indicate in the box:
"C" = Copy without attachment/enclosure "E" = Copy with attachment/enclosure "N" = No copy OFF ICE PDI 1-3/LA NAME BClayton DATE D6/
/96 PD I I-3/PM JW I IIIBSS 06/(7 /96 PDII-3/PD FHebdon D6/
/96 OFFICIAL RECORD COPY
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