ML20115D704
| ML20115D704 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 10/15/1992 |
| From: | Zeringue O TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9210210096 | |
| Download: ML20115D704 (3) | |
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Teamwe VOey A,eorgy Pu.t CAce Han 3XO DecWA Alatea 35fM 0, J 'lko' Zonngue v.ce Pres, dent. o<o ns f eny opeases 001 1 b 1992 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Matter of
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Docket Nos. 50-259 Tennessee Valley Authorit.*
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50-260 50-296 BROWNS PERRY NUCLEAR PLANT (BFN) - RESPONSE TO'NRC SUPPLEMENTAL SAFETY EVALUATION ON THE CONFORMANCE OF BFN WITH THE STATION BLACKOUT (SBO) RULE On September 16, 1992, NRC issued a Supplemental Safety Evaluation (SSE) addressing TVA's revised SB0 coping strategy for "FN multi-unit operation.
In this SSE, the NRC concludes that TVA's proposed methodology for coping with an SB0 event at BFN Units 1, 2, and 3 conforms with the SB0 rule.
The SSE also accepts TVA's responses to recommendations provided in the NRC's initial SB0 Safety Evaluation (SE) for BFN transmitted by letter dated July 11, 1991. The September 16 letter provides the formal notification required by CFR 50.63(c)(3) and requires T'IA to submit within 30 days a schedule tor implementing its proposed equipment and procedure modificati.sna pursuant to 10 CFR 50.63(c)(4). TVA's implementat. ion schedule for Units 1,-2, and 3' is provided below.
With respect to BFN Unit 2, the unit came into compliance with the SB0 rule in May 1992 using the coping strategy pr aiously accepted by the NRC's initia1' Safety Evalaation (SE). TVA will!make the necessary procedure changes to comply with the SB0 rule using the revised coping-strategy prior to restert from the' Unit 2 Cycle 6 outage.(scheduled to start January 1993). No equipment. modifications are required for SB0 compliance during single unit operation.
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.With reopect to Units 1 and 3, equipment'and' associated p'rocedura-modifications required'for SBD rule compliance during multi-unit:
operation vill be completed p'rior to restart of each unit. Some.of these modifications are being performed to. fulfill other requirements and vill be, completed prior.to restart from-the Unit 2 Cycle.6 outage.i SB0 modifications for the non-operating units:(Units l'and=3)-will be completed in accordance with the restart schedule for'each, unit.1 While-these modifications will not be completed within two years of the September 16, 1992 letter, they will be completed in a timeframe consistent-with recovery activities. As requested, TVA will infttm NRC in writing when SB0 modifications (equipment and procedures) for Units 1 and 3 have been fully implemented.
-A summary list of commitments contained in this letter'is provided in th+
enclosure.
If there are any questions, please telephone G. D. Pierce, Interim Manater of Site Licensing, at (205) 729-7566.
Sincerely, k
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- 0. J. Zeringue jj Enclosure cc (Enclosure)!
NRC Resident Inspector Browns Ferry Nuclear Plant Route 12, Box 637 Athens, Alabama 35611 Mr. Thierry M. Poss, Project Manager U.S. Nuclear Regulatory Commission One White Flint, North 11555 Rockville Pike
-Rockville, Ma ryland 20852 Mr. B. A. Wilson, Project Chief U.S. Nuclear Regulatory Commission Region II 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 1
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ENCLOSURE TE!INESSEE VALLEY AUTliORITY BROWNS PERRY HUCLEAR PLANT.(BFfi)
SUMMARY
OF COMMITMEftrS 1.
With respect to Unit 2, TVA vill make the necessary procedure with the SB0 rule using the revised coping changes to comp 1y strategy prior to restart from Unit 2 Cycle 6 outage.
to Units 1 and 3, equipment and associated procedure With respect modification, required for SB0 rule compliance during multi-unit 2.
operation vill be completed prior to restart of ach unit.
.a SB0 modifications (equipment 3.
TVA will inform NRC in writt.
have been fully implemented.
and procedures) for Units 1 l
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