ML20248B984
| ML20248B984 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 03/29/1989 |
| From: | Kelly L Office of Nuclear Reactor Regulation |
| To: | Sylvia B DETROIT EDISON CO. |
| References | |
| RTR-REGGD-01.099, RTR-REGGD-1.099 GL-88-11, TAC-71493, NUDOCS 8904110099 | |
| Download: ML20248B984 (3) | |
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March 29, 1989 Docket No. 50-341 E
- Mr.-B. Ralph Sylvia Group'Vice President - Nuclear Operations
' Detroit Edison Company L6400 N. Dixie Highway LNewport, Michigan 48166
Dear Mr. Sylvia:
SUBJECT:
JFERMI-2' NUCLEAR POWER PLANT - IMPACT OF REGULATORY GUIDE 1.99 REVISION 2 ON OPERATIONS - RESPONSE TO GENERIC LETTER 88-11 (TAC NO. 71493)-
The Commission has reviewed'your November 28, 1988 response to Generic Letter (GL) 88-11 guidance'concerning Revision 2 to Regulatory Guide 1.99, " Radiation Embrittlement of-Reactor Vessel Materials" (May 1988).
We understand that your existing pressure-temperature (P-T) curves, which are based on Regulatory Guide 1.99 Rev.1,. are valid for Rev. 2 analysis for'at least 6 effective full i
power years.
Further, we understand _that you will propose revised P-T curves to Fermi-2 Technical Specifications and UFSAR sections related to P-T curves,
-derived using Regulatory Guide 1.99 Rev. 2 methodology, before the second
- refueling outage,. tentatively scheduled for 1991. We agree that operation with your existing curves.will provide satisfactory safety margin against t
brittle fracture <for the interim time period.
Since GL 88-11 permits licensees to complete all actions within two plant' outages (approximately three years) after the effective date of Revision 2 to Regulatory Guide 1.99, we find your response acceptable.
We will review your.
-i new P-T limits to Revision 2 to Regulatory Guide 1.99 when they are submitted.
Sincerely, L:W
[
L i Kelly, Pro t Manager Project Directorate III-1 Division of Reactor Projects - III, IV, V and Special Projects cc:
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March 29, 1989 gv y Docket No. 50-341 Mr. B. Ralph Sylvia Group Vice President - Nuclear Operations Detroit Edison Company 6400 N. Dixie Highway Newport, Michigan. 48166 Dear Mr. Sylvia.
SUBJECT:
FERMI-2 NUCLEAR POWER PLANT - IMPACT OF REGULATORY GUIDE 1.99 REVISION 2 ON OPERATIONS - RESPONSE TO GENERIC LETTER 88-11 (TAC NO. 71493)
The Commission has reviewed your November 28, 1988 response to Generic Letter (GL) 88-11 guidance concerning Revision 2 to Regulatory Guide 1.99, " Radiation Embrittlement of Reactor Vessel Materials" (May 1988). We understand that your existing pressure-temperature (P-T) curves, which are based on Regulatory Guide 1.99 Rev. 1, are valid for Rev. 2 analysis for at least 6 effective full l
power years.
Further, we understand that you will propose revised P-T curves to Fermi-2 Technical Specifications and UFSAR sections related to P-T curves, j
derived using Regulatory Guide 1.99 Rev. 2 methodology, before the second refueling outage, tentatively schedul;' '.
'"91.
We agree that operation with your existing curves will provide satisfactory safety margin against brittle fracture for the interim time period.
j Since GL 88-11 permits licensees to complete all actions within two plant outages (approximately three years) after the effective date of Revision 2 to Regulatory Guide 1.99, we find your response acceptable. We will review your new P-T limits to Revision 2 to Regulatory Guide 1.99 when they are submitted.
Sincerely, t
j;
<1 Ly Kelly,Proj t Manager Project Directorate III-1
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Division of Reactor Projects - III,
'h IV, V and Special Projects
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cc:
See next page
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4 Mr. B. Ralph Sylvia Fermi-2 Facility Detroit Edison Company CC:
Mr. Ronald C. Callen Ms. Lynn Goodman Adv. Planning Review Section Supervisor - Licensing Michigan Public Service Commission Detroit Edison Company 6545 Mercantile Way Fermi Unit 2 P
O. Box 30221 6400 North Dixie Highway
~ Lansing, Michigan 48909 Newport, Michigan 48166 John Flynn, Esq.
Senior Attorney Detroit Edison Company-2000 Second Avenue Detroit, Michigan 48226 Nuclear Facilities and Environmental Monitoring Section Office Division of Radiological Health P. O. Box 30035 Lansing, Michigan 48909 Mr. Walt Rogers U.S. Nuclear Regulatory Commission Resident Inspector's Office 6450 W. Dixie Highway Newport, Michigan 48166 Monroe County Office of Civil Preparedness 963 South Raisinville Monroe, Michigan 48161 Regional. Administrator, Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 I
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