ML20090A838

Forwards Rev 11 to Section 4.0 of Inservice Testing (IST) Program Plan for Valves,Per NRC Transmitting SER for IST Program

ML20090A838
Person / Time
Site:	Byron
Issue date:	02/27/1992
From:	Schuster T COMMONWEALTH EDISON CO.
To:	Murley T NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation
Shared Package
ML20090A841	List: ML20090A838 ML20090A854
References
NUDOCS 9203030116
Download: ML20090A838 (5)

Text

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February 27,1992 Dr. Thomas E. Murley, Director Office of Nuclear Reactor Regula'!an U.S. Nuclear Regulato lommission Washington, D.C. 2055 Attn: Document Control Desk

Subject:

Byron Station Units 1 and 2 Inservice Testing Program for Valves, Revision 11 NRC_ Docket Nos 50-454 and 50 455

Reference:

(a) January 31,1992 letter from R. Barrett to T. Kovach transmitting a NRR SER for the Byron IST Program

Dear Mr. Murley:

The NRC Safety Evaluation Report of Reference (a) formally accepted the majority of the changes for the most recent Byron IST Program Plan major revision, but denied Draft Robef Request VR-18. The relief request was not granted because insufficient justification was provided as a basis for the relief request.

Commonwealth Edison Company (CECO) was requested by NRR to provide additional justification as soon as possible.

On January 23,1992, a conference was held between re 3resentatives from Byron Station, Byron Nuclear Licensing, and the NRC. During t ils conference, NRC concerns with relief request VR-18 and suggestions for its roorganization were discussed. This IST Valve Program revision is being submitted to address these concerns and suggestions. Former Draft Relief Request VR-18 has been divided into seven relief requests, six of which have besn provided in this transmittal. The valves of relief rec uest VR 18 were formerly grouped by type of relief and have been re-organizec into other relief requests on a system basis.

Four previously existing relief requests have been revised and two new draf t relief requests created to include the relief requested in former Draft Relief Request VR 18. The remaining valves of former Draft Relief Request VR 18, for which relief will be requested at a later date, will likely reside in a revision to the existing Relief Request VR 15. Other values which no longer reside in a Draft Relief Request have either been given a Cold Shutdown test frequency or have been determined to ,

fall under existing program or code allowances. Other changes, primarily administrative in nature, have been made to the program. A more detailed summary of changes made to the valve program is contained in Attachment A. i Attachment B contains Revision 11 of the IST Program Plan for Valves. Revision '

lines in the right hand margin identify each change.

9203030116 920227 l PDR ADOCK 0500o454 P pop ZNLD/1437/4 ,

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Dr. T.E. Murley 2- February 27,1992 The time the NRC Staff has afforded CECO to comment on the Byron IST 3rogram has been sincerely appreciated. Please direct any questions you may  :

1 ave regarding this request to this office.  !

l Respectfully, ld[caCf[ , I [Tt L -

Terenew K. Schuster '

i Nuclear Licensing Administrator l

l 1

Attachments l cc: A. Hsia, Project Manager, NRR W. Kropp, Senior Resident ins 3ector - Byron A. Bert Davis, Regional Admin strator - Rlll t

l l

l ZNLD/1437/5 l . - . . . . .- . . . - ---- -,

I ATTACHMENT A Taklg pl contents

1. Made editorial changes to assure that information in the table reflects changes to " Notes" and " Relief Requests" sections (see below).

Section til Procram Iables .

l

1. !!ade editorial changes to assure that information in the I table reflects changes to " Notes" and " Relief Requests" I sections. Also, a typing error was corrected on the test I froquenc for valves 1/2FWO39A to show the correct test i mode of y'CS" .

Section 121 Notes

1. Added Note 36 to explain effect of Generic Letter 90-06 on Pressurizer Relief and Block valves.

2. Added Note 37 to indicate test frequency (cold shutdown) for the backflow test of valves 1/2PR032.

3. Added Note 38 to indicate test frequency (cold shutdown) for the backflow test of valves 1/2PS231A,B

4. Added Note 39 to indicate test frequency (cold shutdown) for the backflow test of valves 1/2SI8968

5. Added Note 40 to indicate test frequency (cold shutdown) for the backflow test of RCS cold leg valvest 1/2SI8815; 1/2SI6818A-D; 1/2SI8819A-D; 1/2 SIB 900A-D; and RCS hot leg valvest 1/2SI8841A,B; 1/2SI8905A-D, and 1/2 SIB 949A-D

6. Added Note 41 to indicate test frequency (cold shutdown) for valves 1/2RH8705A,B

7. Added Note 42 to indicate test frequency (cold shutdown) for valves 1/2SI8948A-D.

Section 121 Relief Recuests Relief Request VR-St

1. Added Full Stroke Test (CT) check valves 1/2SI8956A-D during refueling outages.

1 i

2. Added Backflow Test (BT) for valves 1/2 SIB 956A-D on the same frequency as Byron Technical Specifications

3. Added information on safety function of these valves

4. Transferred valves 1/2 SIB 948A-D to cold shutdown (Note 42)

Relief Request VR-81

1. Added Full Stroke (CT) and Backflow (BT) test for check valves 1/2CC9518 and 1/2CC9534 and Backflow (BT) test for check valves 1/2CC9486 at cold shutdown, provided all of the Reactor Coolant Pumps are not in operation

2. Added information on safety function of all valves Relief Request VR-98

1. Added Full Stroke Test (CT) and Backflow Test (BT) for check valves 1/2CV8113 during cold shutdown, provided all Reactor Coolant Pumps are not in operation

2. Added information on safety function of all valves Relief Request VR-lot

1. Added Backflow Test (BT) for check valves 1/2IA091 during refueling outages

2. Added information on safety function of all valves Relief Request VR-18 Deleted Relief Request VR-22 Withdrawn Relief Request VR-23:

New Relief Request:

1. Requests relief to Backflow Test (BT) check valves 1/2RY8046 at cold shutdown, provided all of the Reactor Coolant Pumps are not in operation 2

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2. Requests relief to Backflow Teet (BT) check valves 1/2RY8047 during refueling outages Relief Request VR-24:

New Relief Request:

1. Requests relief to Backflow Test (BT) check valves 1/2WOOO7A,B during refueling outages (final) 3

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