ML20134H712
| ML20134H712 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 02/10/1997 |
| From: | Dick G NRC (Affiliation Not Assigned) |
| To: | Johnson I COMMONWEALTH EDISON CO. |
| References | |
| TAC-M97161, TAC-M97162, TAC-M97163, TAC-M97164, NUDOCS 9702110427 | |
| Download: ML20134H712 (4) | |
Text
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February 10, 1997 Ms. Irene M. Johnson, Acting Manager i
Nuclear Regulatory Services
~
Commonwealth Edison Company Executive Towers West III 1400 Opus Place, Suite 500 i
l Downers Grove, IL 60515 I
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SUBJECT:
' REQUEST FOR ADDITIONAL INFORMATION REGARDING REMOVAL OF TENDON SHEATHING FILLER GREASE - BYRON STATION AND BRAIDWOOD STATION l
(TAC NOS. M97161, M97162, M97163 AND M97164) j
Dear Ms. Johnson:
i L
On November 4, 1996, Commonwealth Edison Company (Comed) submitted a l
request for a one-time relief from the tendon surveillance requirements for i
Byron, Unit 1, and Braidwood,. Unit 1.
The request would. permit Comed to remove
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i sheathing filler grease in the tendon sheathing ~1n up to 35. tendons in advance of.
the steam generator replacement outages. Duringthecourieofourreview,we have identified the need for further information as discussed,in the enclosed l
request' for additional' information ' RAI)k -Please prov'ide your response to the
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4 request so that we may maintain our schedule for review of your submittal.
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Sincerely,-
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ORIGINAL SIGNED BY:
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1.
,Geor'ge-F. Dick,=Jf.,'ProjectManager
~ Project Directorate III-2 Division'of Reactor Projects - III/IV 1
Office of Nuclear Reactor Regulation Docket Nos. STN 50-454,-STN 50-455, STN 50-456, STN 50-457 y
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Enclosure:
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see next page
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Distributi u:
Docket 1FileI
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PDIII-2 r/f (2)
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J. Roe, JWR E.'Adensam, EGA1 R. Capra C. Moore (2)
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l G. Dick (2)
R. Assa S. Bailey OGC, 015B18 ACRS, T2E26 R. Lanksbury, RIII DOCUMENT NAME:
BB97161.RAI j
To r:ceive e copy of this document,indcate in the box: "C" = Copy without enclosures *E" = Copy with enclosures *N* = No copy 0FFICE PM:PDIII-$, /:
LA:PDIII-2 F
D:PDIII-2 l/
NAME-GDICK Mti CM00RE Dh M RCAPRA W l
DATE 02//0 /97' ~
02/lo/97 "/
02/3 /97 9702110427 970210
'ICIAL RECORD COPY s
PDR ADOCK 05000424 i
P POR
l I. Johnstn Byron /Braidwood Power Stations Commonwealth Edison Campany cc:
Mr. William P. Poirier, Director George L. Edgar Westinghouse Electric Corporation Morgan, Lewis and Bochius Energy Systems Business Unit 1800 N Street, N.W.
Post Office Sox 355, 8ay 236 West Washington, DC 20036 Pittsburgh, Pennsylvania 15230 Attorney General Joseph Gallo 500 South Second Street Gallo & Ross Springfield, Illinois 62701 1250 Eye St., N.W.
Suite 302 EIS Review Coordinator Washington, DC 20005 U.S. Environmental Protection Agency 77 W. Jackson Blvd.
Michael I. Miller Esquire Chicago, Illinois 60604-3590 Sidley and Austin One First National Plaza Illinois Department of Chicago, Illinois 60603 Nuclear Safety Office of Nuclear Facility Safety Novard A. Learner 1035 Outer Park Drive Environmental law and Policy Springfield, Illinois 62704 Center of the Midwest 203 North LaSalle Street Camsonwealth Edison Company Suite 1390 Byron Station Manager Chicago, Illinois 60601 4450 North Gensan Church Road Byron, Illinois 61010 l
U.S. Nuclear Regulatory Commission Byron Resident inspectors Office Kenneth Graesser, Site Vice President 4448 North Gensan Church Road Byron Station Byron, Illinois 61010-9750 Commonwealth Edison Station 4450 N. Gensan Church Road Regional Administrator, Region III Byron, Illinois 61010 U.S. Nuclear Regulatory Commission 801 Warrenville Road U.S. Nuclear Regulatory Commission Lisle, Illinois 60532-4351 Braidwood Resident Inspectors Office Rural Route #1, Box 79 Ms. Lorraine Creek Bracev111e, Illinois 60407 Rt. 1, Box 182 Manteno, Illinois 60950 Mr. Ron Stephens Illinois Emergency Services Chairman, Ogle County Board and Disaster Agency Post Office Box 357 110 East Adams Street Oregon. Illinois 61061 Springfield, Illinois 62706 Nrs. Phillip 8. Johnson Chainnan 1907 Stratford Lane Will County Board of Supervisors Rockford, Illinois 61107 Will County Board Courthouse Joliet, Illinois 60434
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Commonwealth Edison Company Braidwood Station Manager Rt. 1, Box 84 Bracev111e, Illinois 60407 i
Ns. Bridget Little Rores Appleseed Coordinator 117 North Linden Street Essex, Illinois 60935 Document Control Desk-Licensing Commonwealth Edison Company 1400 Opus Place, Suite 400 Downers Grove, Illinois 60515 Mr. 21. G. Stanley Site Vice President Braidwood Station Commonwealth Edison Company RR 1, Box 84 Braceville, IL 60407
RE00EST FOR ADDITIONAL INFORMATION
,o REMOVAL OF TENDON SHEATHING FILLER GREASE COP 940NWEALTH EDISON COMPANY BYRON STATION. UNITS 1 AND 2 AND BRAIDWOOD STATION. UNITS 1 AND 2 DOCKET NOS. STN 50-454. STN 50-455. STN 50-456 AND STN 50-457 1.
Please provide detailed schedules for replacement of steam generators in Unit 1 of Byron and Braidwood.
Include the following information in the schedules:
(1) time (month and year) when the grease will be removed from the specific tendons, (2) the period during which the tendons will be without grease coverage, (3) the plant status (operating, hot shutdown, cold shutdown, etc.) during the time when the tendons will be without grease, (4) schedule for tendon removal, concrete cutting, containment reconstruction, tendon installation, and grease installation.
2.
Please provide infomation regarding protecting the tendons from ingress of moisture, water, and damaging airborne elements, such as chlorides, and sulfides, during the time when the tendons are not covered with grease. Some of the methods used in the past have been filling the ducts with an inert gas at a slightly positive pressure or filling the grease caps with fresh grease after removing the grease from the tendons.
ENCLOSURE