ML20027E820
| ML20027E820 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 11/09/1982 |
| From: | Tauber H DETROIT EDISON CO. |
| To: | Kintner L Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20027E821 | List: |
| References | |
| EF2-60-296, NUDOCS 8211160213 | |
| Download: ML20027E820 (3) | |
Text
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Harry Tcubar Group Vice President a e 28 7
3 November 9, 1982 i
EF2 - 60,296 Mr. L. L. Kintner U. S. Nuclear Regulatory Commission Office of Nuclear Reactor Regulation Division of Licensing i
Washington, D. C. 20555
Dear Mr. Kintner:
References:
(1)
Enrico Fermi Atomic Power Plant, Unit 2 NRC Docket No. 50-341 (2)
Detroit Edison to NRC letter, " Evaluation of the Enrico Fermi 2 Drywell-to-Wetwell Vacuum Breakers", EF2-59,061, August 18, 1982 (3)
Detroit Edison to NRC letter, " Schedule for the Resolution of NRC Open Items in the Review of the Fermi 2 Mark I Contain-l ment", EF2-60,113, October 15, 1982
Subject:
Submittal of Reports for the Fermi 2 Vacuum Breakers The Reference 2 letter summarized the results of stu-dies made of the Fermi 2 design basis Drywell-to-Wetwell vacuum breakers in response to a design basis LOCA.
The letter also presented the Detroit Edison
()()
program for intended modifications to the valves to i
replace valve components calculated to exceed code S
gj allowable stresses and provided justification for CfI) interim operation in case those modifications couldn't j
be made prior to fuel load.
Subsequent to this, as documented in Reference 3, GE gave a brief presentation at a meeting with your Staff on September 9 and 10, 1982 summarizing the generic Mark I effort in developing the methodology for the analysis of the vacuum breakers.
Your Staff stated in response that they would like a report describing the methodology and the appropriate plant unique calculations.
DO K 05hhh34g l
'Mr. L. L. Kintner November 9, 1982 EF2 - 60,296 Page 2 s
The applicable reports have been developed, and forty copies are attached for your use.
General Electric will also be submitting the generic report (CDI Tech Note 82-31) on behalf of the Mark I Owners Group.
It is also our understanding that General Electric is planning to give a presentation to you on this subject in the December 1st time frame.
Should you have any further questions, please contact Mr. L. E. Schuerman, (313) 649-7562.
Sincerely, cc:
Mr. B. Little Mr. B. Siegel 4
, e w"**
Mr. L. L.'Kintner November 9, 1982' EF2 - '60,296 Page 2' bec:
T. A. Alessi E. L. Alexanderson H. O. Arora M. L. Batch
- 0. K. Earle L. E. Eix W. J. Fahrner E. P. Griffing W. H. Jens/W. R. Holland L. E. Kanous A. K. Lim E. Lusis P. A. Marquardt J. W. Nunley L. E. Schuerman R. A. Vance A. E. Wegele Document Control C. M. Johnson (GE-San Jose)
R. Mapes (GE-San Jose)
J. E. Slider (NUS-Gaithersburg)
L. Steinert (NUTECH-San Jose)
F. H. Sondgeroth (NUS-Troy)
(