05000338/LER-1979-090-99, /99X-0 on 790629:recent Data Indicates Nonconservatism in Rept Tornado Considerations for Nuclear Power Plants Ref in Fsar.Paper Did Not Consider That Damage Caused by Lubbock,Tx Tornado Was Possible

/99X-0 on 790629:recent Data Indicates Nonconservatism in Rept Tornado Considerations for Nuclear Power Plants Ref in Fsar.Paper Did Not Consider That Damage Caused by Lubbock,Tx Tornado Was Possible

ML19207A310
Person / Time
Site:	North Anna
Issue date:	08/10/1979
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19207A307	List: 05000338/LER-1979-090, Forwards LER 79-090/99X-0 & Rept 44T-1844, Tornado Missile Risk Analysis of Spent Fuel Pool, Dtd Jul 1979 05000338/LER-1979-090-99, /99X-0 on 790629:recent Data Indicates Nonconservatism in Rept Tornado Considerations for Nuclear Power Plants Ref in Fsar.Paper Did Not Consider That Damage Caused by Lubbock,Tx Tornado Was Possible ML19207A312
References
LER-79-090-99X, LER-79-90-99X, NUDOCS 7908160433
Download: ML19207A310 (1)

LER-1979-090, /99X-0 on 790629:recent Data Indicates Nonconservatism in Rept Tornado Considerations for Nuclear Power Plants Ref in Fsar.Paper Did Not Consider That Damage Caused by Lubbock,Tx Tornado Was Possible

Event date:
Report date:
3381979090R99 - NRC Website

text

NRC F ORM 366 U. S. NUCLEAR REGULATORY COMMISSION (7 77)

LICENSEE EVENT REPORT

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3 60 61 OOCA ET NLV8E A 6d W3 EVENT C ATE 74 5

AEPORT D ATE 60 Et ENT DESCRIPTION AND PROB ABLE CONSEQUENCES h oIr lRecent data has become available to show nonconservatism in the oacer on " Torn Vn l Considerations for Nuclear Power Plants" by T. L. Doan.

This document is referenced l

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[, ra l by the F.S. A.R. Section 9.1 regarding the Spent Fuel Pool Design.

Further analysis _ j i as been performed to indicate that the present design of the spent fuel pool is l

h n i E, i adequate in light of this new data and therefore the health & safety of the general l

0 aj-l lpublic wera.rt. affected.

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CAUSE CESCRIPTICN AND CORRECTIVE ACTICNS l This new data became available following a study of the damage caused by tornado at l

l Lubbock, Texas where an automobile was found hurled more than 25 ft. into the air.

l jThis was not considered possible in the paper by T. L. Doan referenced by the F.S.A.R. ;

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l The attached report confirms the adequacy of the present design in meeting the l

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