ML20196G911

Discusses Completion of Licensing Action for GL 96-01, Testing of Safety-Related Logic Circuits

ML20196G911
Person / Time
Site:	Browns Ferry
Issue date:	06/28/1999
From:	Long W NRC (Affiliation Not Assigned)
To:	Scalice J TENNESSEE VALLEY AUTHORITY
References
GL-96-01, GL-96-1, TAC-M94651, TAC-M94652, NUDOCS 9907010295
Download: ML20196G911 (4)

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8 o NU' CLEAR REGULA10h / COMMISSION g 'y WASHINGTON, D. C. 20S$5 k*****,/ June 28,1999 Mr ' J.' A. Scalice .

Chief Nuclear Officer .

' and Executive Vice President Tennessee Valley Authonty 6A Lookout Place 1101 Market Street Chattanooga, Tennessee 37402-2801

SUBJECT:

COMPLETION OF LICENSING ACTION FOR GENERIC LETTER 96-01,

" TESTING OF SAFETY-RELATED LOGIC CIRCUlTS," BROWNS FERRY NUCLEAR Pt. ANT, UNITS 2 & 3 (TAC NOS. M94651 AND M94652)

Dear Mr. Scalice:

On January 10,1996, the U. S. Nuclear Regulatory Commission (NRC) issued Generic Letter (GL) 96-01, " Testing of Safety-Related Logic Circuits," to all holders of operating licenses or

. construction permits. The NRC issued GL 96-01 for three principal reasons:

1. Notify addressees about problems with testing of safety-related logic circuits;

2. Request that all addressees implement the actions described within the generic letter; and

3. Require that all addressees submit to the NRC a written response regarding implementation of the requested actions.

In GL 96-01, the NRC staff specifically requested that licensees take the following actions:

1. Compare electncal schematics and logic diagrams for the reactor protection system, emergency diesel generator load sheddag and sequencing, and actuation logic for the engmeered safety feature systems against plant surveillance test procedures to ensure that all portums of the logic circuitry, including the parallel logic, interiocks, bypasses, and inhituts circusts, are adequately covered in the surveillance procedures to fulfill the technical specsfication requirements. This review should also include relay contacts, control switches, and other relevant electncal components within these systems, utilized in the logic circuits performing a safety function; and k D

2. Modify the surveillance procedures as necessary for complete testing to comply with the technical specifications. Additionally, the licensee may request an amendment to the technical specificatens if rehof from certain testing requirements can be justified. f Furthermore, the NRC staff required that addressees prepare and submit the following:

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1. A wntten response indicating whef ter or not the licensee would implement the actions requested above or propose en chamative , I a

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2. A schedule for completing the requested actions or proposed altemative; and

3.  ; A response confirming completion of the requested actions.

In response to (1) and (2) TVA provided a letter dated April 18,1996. In response to (3), TVA provided a letter dated September 29,1997. These submittals provided, for Units 2 and 3, both the information requested and the responses required by GL 96-01; therefore, TAC Nos.

M94651 and M94652, for Browns Ferry Units 2 and 3 respectively, are closed. TAC No.

M94650, applicable to Unit 1 will remain open for tracking purposes, pending possible restart of Unit 1, Contact me if you have any questions.

o Sincerely, s ,, .

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William O. Long, Senior Project Manager, Section 2 Project Directorate ll Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-259, 50-260 and 50-296 cc See next page l

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• Mr. J. A. Scalice BROWNS FERRY NUCLEAR PLANT  ;

Tennessee Valley Authority cc:

Senior Vice President Mr. Mark J. Burzynski, Managar l Nuclear Operations Nuclear Licensing Tennessee Valley Authority Tennessee Valley Authority 6A Lookout Place 4X Blue Ridge  !

1101 Market Street 1101 Market Street Chattanooga, TN 37402-2801 Chattanooga, TN 37402-2801 Mr. Jack A. Bailey, Vice President Mr. Timothy E. Abney, Manager Engineering & Technical Services . Licensing and Industry Affairs Tennessee Valley Authority Browns Ferry Nuclear Plant 6A Lookout Place _ Tennessee Valley Authority 1101 Market Street P.O. Box 2000 Chattanooga, TN 37402-2801 Decatur, AL 35609 Mr. Karl W. Singer, Site Vice President Senior Resident inspector Browns Ferry Nuclear Plant U.S. Nuclear Regulatory Commission Tennessee Valley Authority Browns Ferry Nuclear Plant P.O. Box 2000 - 10833 Shaw Road Decatur, AL 35609 Athens, AL 35611 General Counsel State Health Officer Tennessee Valley Authority Alabama Dept. of Public Health ET 10H 434 Monroe Street 400 West Summit Hill Drive Montgomery, AL 36130-1701 Knoxville,TN 37902 Chairman Mr. N. C. Kazanas, General Manager Limestone County Commission Nuclear Assurance 310 West Washington Street Tennessee Valley Authority Athens, AL 35611 SM Lookout Place 1101 Market Street Chattanooga, TN 37402-2801 l Mr. Robert G. Jones, Plant Manager .

Browns Ferry Nuclear Plant Tennessee Valley Authority P.O. Box 2000 Decatur, AL 35609 l

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2. A schedule for completing the requested actions or proposed altemative; and l

l 3. A response confirming completion of the requested actions.

1 In response to (1) and (2) TVA provided a letter dated April 18,1996. In response to (3), TVA i provided a letter dated September 29,1997. These submittals provided, for Units 2 and 3, both the information requested and the responses required by GL 96-01; therefore, TAC Nos.

M94651 and M94652, for Browns Ferry Units 2 and 3 respectively, are closed. TAC No.

M94650, applicable to Unit 1 will remain open for tracking purposes, pending possible restart of Unit 1.

Contact me if you have any questions. .

I Sincerely, Original signed by:

i William O. Long, Senior Project Manager, Section 2 Project Directorate 11 Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-259,50-260 and 50-296 l cc: See next page i

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