ML19220C424
| ML19220C424 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/18/1978 |
| From: | Vassallo D Office of Nuclear Reactor Regulation |
| To: | Grossman M NRC Office of the Executive Legal Director (OELD) |
| References | |
| NUDOCS 7905010296 | |
| Download: ML19220C424 (1) | |
Text
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APR 1 S N Cocket No: 50-320 MEMORANTM FOR: Miltor: J. Grosscan, Hearing Division Directcr and Chief Counsel, OELD FROM:
D. B. Yassallo, Assistant Director for Light Water Reactors, Division of Projec.t Management, NRR
SUBJECT:
BOARD NOTIFICATION - THREE MIL,E ISLAND-2 I recocnend that the enclosed docts:ent related to the B&W revised small break Loss-of-Coolant Accident be provided to the Three Mile Island-2 Board.
It appears that the interis corrective ceasure will require procedures for operator action in addition to a pcwer limitation. The plant status is such that the proposed limiting pcwer level of 93% has not yet been achieved. The staff will take the necessary action to provide for imple-mentation of the interim corrective actica in a timely manner. Long-taru solutions to the problem have not been specifically addressed at this dm.
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Briginalsigned by D. B.Vassailo D. B. Vassa,1lo, Assistant Director for Light Water Reactors Division of Project Managec:ent
Enclosure:
As stated cc w/ enclosure:
Distribution:
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April 17, 1978 GRL 071h l
Director of ttuelent Resctor Regulation 1
Attn:
R. V. Bei:1. Chief Operating Beneters Branch No. b.,
U. S. Nuclear Ber:1ntory Cemission Washington, D.C.
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Director of Nucler.r Besetor Re;::ultation Attn:
Mr. 8. A. Vrtrr.s, Chier h,
Branch No. L
, Lit;ht Vater Panc tora y;'
U. S. Nuclear Hertlatory Commission d
, Vcshirtston, D.C.
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Cedtlement Three File Isinni nuclaur Stntion
'IP.i T Drn-50, Docket 70-260
'D4I-2 CNt-73, Docket 50-320 1
In accordance with y.ur orni request of April 14,197fl, planne be novtsed that B&V han eenlunted the revised small brenk LCCA nn originally report 1 on April 11, 1970 purnuan'. to.10 CFR 21.
The evnlunt.ien rsulta,
.i sasu. ming loss cf ^ f f s it e power and the nest Int:n;;ing ninp.le f ailure, nre as follevs:
i operate r netton, the erre vill Ter.n i n c'.n cred nnd 3.
Annu-Ing no is no clreiding
- .e pers',ure creursion prey t led that therral there j
power 13 limited to'less than:
TMI-l < 69% of 2535 !Gt h
'TVT-2 < C3% cf 2772 Wt i
to crnae connect t h r-lip:
2.
Anru 'nr c rern ter artton in 70 ntnu'e9
'he liri T~AS (etnoring failure of n dienel) on on d i sch rtre e and t h r< e t.1 ~ c r '. t i n g (whi-b pre-v91v-r tr n pre:t e' a r -i ne 1 discharne pornp rune-st) the core vr'ul.1 remain revered and there vent s H1'~
vould be no cln'idi m g,- r > * " r n eveurnion for ther=nl pevers of-n--.
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