ML18029A433
| ML18029A433 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/19/1985 |
| From: | Domer J TENNESSEE VALLEY AUTHORITY |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0313, RTR-NUREG-313 NUDOCS 8503250171 | |
| Download: ML18029A433 (6) | |
Text
REGULATORY INFORMATION DISTRIBUTION S4'EM (RIDS)
ACCESSION NBRG8503250171 DOC ~ DATE: 85/03/19 NOTARIZED:
YES FACIL:50-259 Browns Ferry Nuclear Power Stations Unit 1~
Tennessee 50-260 Browns Ferry Nuclear Power Stations Unit 2i Tennessee 50 296 Browns Ferry Nuclear Power Stationi Unit 3<
Tennessee AUTH BYNAME AUTHOR AFFILIATION DOMERgJ ~ AD Tennessee Valley Authority RECIP.NAME RECIPIENT AFFILIATION DENTONgH ~ RE Qffice of Nuclear Reactor Regulationr Director
SUBJECT:
Submits supplemental response to request for addi info re'UREG-0313
'esults of delta ferrite readings taken on A 351 CFBM casting RHH stainless valves for Unit 2 provided~
completing committment in Item 2,b of util 821220 1tr ~
DISTRIBUTI N CODE:
A047D COPIES RECEIVED: LTR ENCL SIZE".
TITLE:
OR Submittal: Inservice Inspection/Test ng NOTES:NMSS/FCAF 1cy ~ icy NMSS/FCAF/PM'L:06/26/73 NMSS/FCAF 1cy ~
1cy NMSS/FCAF/PM'L:06/28/74
. NMSS/FCAF icy. icy NMSS/FCAF/PM'Lo07/02/76 DOCKET 05000259 05000260 05000296 05000259 05000260 05000296 RECIPIENT ID CODE/NAME NRR ORB2 BC 01 INTERNAL: ACRS 16 ELD/HDS4 NRR MTEB 14 FILE 04 COPIES LTTR ENCL 10 1
1 1
1 RECIPIENT ID CODE/NAME ADM/LFMB NRR/DE/MEB 1'5 NRR/DL/TAPMG RGN2 COPIES LTTR ENCL EXTERNAL: LPDR NSIC
,NOTES:
03 05 NRC PDR 02 1
1 TOTAL NUMBER OF COPIES REQUIRED:
LTTR 29 ENCL 7
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TENNESSEE VALLEYAUTHORITY CHATTANOOGA, TENNESSEE 37401 400 Chestnut Street Tower II March 19, 1985 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555
Dear Mr. Denton:
In the Matter of the
)
Tennessee Valley Authority
)
Docket Nos. 50-259 50-260 50-296 By L. M. Mills'etter to you dated December 20,
- 1982, we submitted our response to NUREG-0313 request for additional information for the Browns Ferry Nuclear Plant.
This letter provides supplementary information.
In item 2.b of the December 20, response we stated that delta ferrite readings would be taken on the A 351 CF8M casting RHR stainless valves at the next refueling outage for each unit.
Delta ferrite readings have been taken on the unit 2 valve during the current outage.
The readings show that the ferrite content of the cast austenitic stainless steel ranges from 9 to 16 percent with 12 to 13 percent being a more representative value.
Cast austenitic stainless steel with at least five percent ferrite has been demonstrated to be highly resistant to intergranular stress.corrosion cracking.
The results for unit 1 were reported by L. M. Mills'etter to you dated June 22, 1983.
The results for unit 3 were reported by L. M. Mills'etter to you dated June 22, 1984.
This completes the commitment in item 2.b of the December 20, 1982 letter enclosure.
As with the December 20 letter, a copy of this is also being sent to EG&G Idaho, Inc.
Very truly yours, TENNESSEE VALLEY AUTHORITY Subscribe
. an/ sworn to be re me this fM da of J.
A. Domer Nuclear Engineer 1985.
Notary Public My Commission Expires cc:
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Mr. Harold R. Denton March 19, 1985 cc:
EG&G Idaho, Inc.
ATTN:
Mr. Wayne Roberts P.O.
Box 1625 Idaho Falls, Idaho 83415 U.S. Nuclear Regulatory Commission Region II ATTN:
Dr. J. Nelson Grace, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 Mr. R. J. Clark Browns Ferry Project Manager U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue
- Bethesda, Maryland 20814
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