ML20137Z413

Informs That Plans to Install or Take Credit for Partial Suppression in Conjunction w/1hr Fire Rating,Acceptable to Resolve Issues of Thermo-Lag Fire Barrier Sys in GL 92-08, Thermo-Lag 330-1 Fire Barriers, for Plant,Unit 1

ML20137Z413
Person / Time
Site:	Grand Gulf
Issue date:	04/21/1997
From:	Donohew J NRC (Affiliation Not Assigned)
To:	Hagan J ENTERGY OPERATIONS, INC.
References
GL-92-08, GL-92-8, TAC-M85554, NUDOCS 9704240151
Download: ML20137Z413 (4)

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UNITED STATES y

j NUCLEAR REGULATORY COMMISSION WASHINGTO N, D.C. 20666-0001 Q*****l April 21, 1997 Mr. Joseph J. Hagan Vice President, Operations GGNS Entergy Operations, Inc.

P. O. Box 756 Port Gibson, MS 39150

SUBJECT:

COMPLETION OF LICENSING ACTION REVIEW FOR GENERIC LETTER 92-08,

" THERM 0-LAG 330-1 FIRE BARRIERS," DATED DECEMBER 17, 1992, FOR GRAND GULF NUCLEAR STATION, UNIT 1 (TAC NO. M85554)

Dear Mr. Hagan:

Generic Letter (GL) 92-08, "Thermo-Lag 330-1 Fire Barriers," dated December 17, 1992, was issued by the Nuclear Regulatory Com.2sion (NRC) staff in regard to Thermo-Lag 330-1 fire barrier systems installed at nuclear power plants. You have responded to the GL and to follow-up requests for additional information for Grand Gulf Nuclear Station, Unit 1 (GGNS) in the following nine letters: April 13 and June 22, 1993 (GNR0-93/00033 and GNR0-93/00076);

February 14 and December 21, 1994 (GNRO-94/00015 and GNR0-94/00142); March 29 and December 20, 1995 (GNR0-95/00040 and GNR0-95/00136); June 28 and December 20, 1996 (GNR0-96/00075 and GNR0-96/00134): and March 3, 1997 (GNR0-97/00006). The GNR0-XX/YYYYY number listed with each of these letters is the individual number assigned by your letter numbering system. Except for the letter of April 13, 1993, which responded to GL 92-08, your letters were in i response to our requests for additional information (RAls) dated May 17 and December 21, 1993; September 23 and December 28, 1994; November 6, 1995; and October 28, 1996.

The staff has evaluated the information provided in your letters listed above.

As stated in your response of March 3,1997, you elected to requalify the j

installed Thermo-Lag barriers in accordance with new generic industry testing and committed in your letter of December 21, 1994, to complete all fire endurance corrective actions prior to the restart of GGNS from the eighth refueling outage scheduled for completion in November 1996. Your approach was

to ensure that all Thermo-Lag fire barrier systems will provide at least a 1-hour fire rating, and in those cases where 3-hour fire reting barrier had

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been installed, you planned to install or take credit for partial suppression

in conjunction with the 1-hour fire rating. Based on our evaluation of your submittals, we conclude that your program plan is acceptable to resolve the issues of Thermo-Lag fire barrier systems in GL 92-08, however, the correc-tions you have made to the plant under the program plan will not be evaluated

until a future inspection.

By letter dated March 3,1997, you stated that all corrective actions for the resolution of the Thermo-Lag issues had been implemented at GGNS during the eighth refueling outage. On the basis of its evaluation of your responses, the staff has determined that you have provided the information requested in GL 92-08 and the actions tracked by TAC No. M85554 for GGNS are complete. g n4nn19 - O 9704240151 970421 DR ADOCK 050004 6

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Joseph J. Hagan Based on our review of your submittal of Dece:nber 20, 1996, however, there remains a few open questions involving clarification of your responses in that i letter concerning the ampacity derating for rhermo-Lag 330-1. The staff sent i you an RAI on February 26, 1997. The resolution of these ampacity derating questions is being treated generically and is being tracked using the separate TAC No. M82809.

As you have stated that you will rl.t you should retcin all documentation related to the resolution of the concerns with Thermo-Lag 330-1 fire barrier systems for future NRC audits or inspections.

If you have any questions regarding this matter, please contact Jack N. Donohew at 301-415-1307. This letter closes out the staff's review under TAC No. M85554.

Sincerely,

)

gy 27

(-}ProjectDirectorateIV-1g.onoh a w Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation

, Docket No. 50-416 cc: See next page 4

DISTRIBUTION:

Docket File- PUBLIC PD4-1 r/f J. Roe E. Adensam (EGAl) J. Donohew P. Gwynn, RIV ACRS OGC (15818)

C. Hawes W. Beckner T. Marsh J. Calvo D. Oudinot L. Tran Document Name: GG85554.LTR OFC PM/Pa4-A LA/PD4-1 BC/SPLB

/lv BC/EELB NAME JDo h kvw CHawes[MN TMarsh JCalvoEY DATE M / '/ /97 Y /7 /97 4/dl/97 4/ U /97 COPY h/NO

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YES/NO YES/NO YESh OFFICIAL RECORD COPY a

.i Joseph J. Hagan Based on our review of your submittal of December 20, 1996, however, there remains a few open questions involving clarification of your responses in that letter concerning the ampacity derating for Thermo-Lag 330-1. The staff sent you an RAI on February 26, 1997. The resolution of these ampacity derating questions is being treated generically and is being tracked using the separate TAC No. M82809.

As you have stated that you will do, you should retain all documentation related to the resolution of the concerns with Thermo-Lag 330-1 fire barrier systems for future NRC audits or inspections.

If you have any questions regarding this matter, please contact Jack N. Donohew at 301-415-1307.

This letter closes out the staff's review under TAC No. M85554.

Sincerely,

) ) i Y'h)hh Jack N. Do'nohew, Senior Project Manager

( Division Project Directorate IV-1 of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket No. 50-416 cc: See next page

Mr. Joseph J. Hagan Entergy Operations, Inc. Grand Gulf Nuclear Station I

, I cc:

. Executive Vice President General Manager, GGNS j

& Chief Operating Officer Entergy Operations, Inc.

Entergy Operations, Inc. P. O. Box 756

P. O. Box 31995 Port Gibson, MS 39150

. Jackson, MS 39286-1995 Attorney General ,

Wise, Carter, Child & Caraway Department of Justice l P. O. Box 651 State of Louisiana i

Jackson, MS 39205 P. O. Box 94005

Baton Rouge, LA 70804-9005 l

, Winston & Strawn 1400 L Street, N.W. - 12th Floor State Health Officer Washington, DC 20005-3502 State Board of Health P. O. Box 1700 1Irector Jackson, MS 39205 Division of Solid Waste Management Mississippi Department of Natural Office of the Governor Resources State of Mississippi P. O. Box 10385 Jackson, MS 39201 l Jackson, MS 39209 '

I Attorney General President, Asst. Attorney General claiborne County Board of Supervisors State of Mississippi Port Gibson, MS 39150 P. O. Box 22947 Jackson, MS 39225 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Vice President, Operations Support 611 Ryan Plaza Drive, Suite 1000 Entergy Operations, Inc.

Arlington, TX 76011 P.O. Box 31995 Jackson, MS 39286-1995 Senior Resident Inspector U. S. Nuclear Regulatory Commission Director, Nuclear Safety Route 2, Box 399 and Regulatory Affairs Port Gibson, MS 39150 Entergy Operations, Inc.

P.O. Box 756 Manager of Operations Port Gibson, MS 39150 Bechtel Power Corporation P.O. Bor. 2166 Houston, TX 77252-2166 s