ML19224C327
| ML19224C327 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/06/1979 |
| From: | Hanauer S Office of Nuclear Reactor Regulation |
| To: | Benaroya V, Butcher E, Butler W, Hintze A, Houston W, Knox J, Lainas G, Chris Miller, Novak T, Rosa F, Satterfield R, Srinivasan M, Danielle Sullivan, Tedesco R, Tondi D, Vollmer R Office of Nuclear Reactor Regulation |
| References | |
| TASK-TF, TASK-TMR NUDOCS 7907020144 | |
| Download: ML19224C327 (2) | |
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% ' u" APR 6 1979
- 0TE TO
- Attached List FROM:
S. H. Hanauer, Assistant Director for Plant Systems, DSS
SUBJECT:
1.
ENVIRO:;MEitTAL QUALIFICAT10tl 2.
INSTRUME!!TATION TO FOLLO'..' THE COURSE OF A.'! ACCIDENT I believe that as a result of the TMI accident, we have to rethir.k:
1.
Environmental Qualification envelope 2.
Things which have to be qualified 3.
RG 1.97 implementat wa 4.
Backfitting Cha ges in my thinking include:
1.
Core damage is credible 2.
Long-term plant operation is essential; initiation isn't enough 3.
LOCA and SLB may not give an envelope that includes the Till experience 4.
e are relying heavily on things not defined as " safety-related" (Browns Ferry was like that, also)
I believe that we will be required, justifiably, to hasten the pace of review and backfitting decisions.
We can't be definitely quantitative until we have better data than new available (for example, dose rates),
but we can start thinking in principle.
Please start thinking about this problem.
I will set a due date for your ideas as soon as we get off the night shif t.
N i
. H. Hanauer, Afsistant Director efor Plant Systems
. Division of Systems Safety cc:
G. Arlotto R. Boyd R. CeYoung R. Mattson
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Ross J. Sniezek V. Stello 7907020\\
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APR 6 1979 Addressees V. Senaroya E. Butcher W. Butler A. Hintze W. Houston J. Knox G. Lainas C. 11111er T. I:ovak F. RJsa R. Satterfield M. Sriniu an D. Sullivan i
A. Szukiewicz P,. Tedesco D. Tondi R. Vollmer 4
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