ML17244A472

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Forwards IE Bulletin 79-06, Review of Operational Errors & Sys Misalignments Identified During TMI Incident. Licensee Action Required
ML17244A472
Person / Time
Site: Ginna 
Issue date: 04/11/1979
From: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To: White L
ROCHESTER GAS & ELECTRIC CORP.
References
NUDOCS 7905020106
Download: ML17244A472 (2)


Text

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1 UNITED STATES

,NUCLEAR REGULATORY COMMISSION REGION I 631 PARK AVENUE KING OF PRUSSIA, PENNSYLVANIA 16406 April ll, 1979 Docket No. 50-244 Rochester Gas and Electric Corporation ATTN:

Mr. Leon D. llhite, Jr.

Vice President Electric and Steam Production 89 East Avenue Rochester, New York 14649 Gentlemen:

Enclosed is IE Bulletin No. 79-06, which requires action by you with regard to your pressurized water reactor facility(ies) with an operating license.

Based on our current understanding of the Three bile Island accident

sequence, and discussion with the designer of your pressurized water
reactor, we have reason to believe that pressurizer level indication in your facility may not provide reliable information regarding level in the reactor coolant system under certain transient or accident condition.

You should immediately instruct your operating personnel accordingly.

In addition you should consider this possibility, in responding to the enclosed bulletin.

Should you have any questions regarding this bulletin or the actions required by you, please contact this office.

Sincerely, yce H. Grier ctor

Enclosure:

IE Bulletin No. 79-06 with Enclosures cc w/encls:

B. A. Snow, Plant Superintendent S. Bullock, gC Engineer Lex K. Larson, Esquire

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