ML19329A170

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Responds to Inquiry Re Informing of Util of Basis for Requiring Positive Flow Indication on Reactor Hot Leg Drain. Util Informed Orally & in Writing on Numerous Occasions
ML19329A170
Person / Time
Site: Oconee  Duke Energy icon.png
Issue date: 11/12/1976
From: Neighbors D
Office of Nuclear Reactor Regulation
To: Goller K
Office of Nuclear Reactor Regulation
References
NUDOCS 7912300195
Download: ML19329A170 (1)


Text

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NOV 121976 1

i MEl ORA'13U:t FOR:

Karl R. Goller, Assistat.t Director for Operatinq Reactors, DDR j

TilRU:

A. Schwencer, Chief, Operating Reactors Branch #1, D0 [

FR0!!:

Don 1:cighbors, Project : tanager, Operating Reactors Branch fl. DDR f

SUBJECT:

POSITIVE FL0tl IllDICATION IN OCONEE HOT LEG DRAI!

l BOR0!i DILUTIOff FLOW j

been informed either by letter or orally of the basis i

positive flow indication on the reactor hot leg drain.

On nut.1erous occasions, Duke Pouer Company (DPC) was infomed of the need for and the reasons for the positive flow indication on the reactor hot leg drain.

Specifically on February 10, 1976, DPC was orally infomed by G. !!azetis, RSB, that flow indication was needed to allow the operator to get flow by an alternate method if flou vere to stop in the hot leg drain.

On February 27, 1976, Mr. Parker of DPC was orally infomed by fir. Rusche that the flow indication was required.

By letters dated February 17 and October 4 that positive flow indication was necessary,1976, we infomed DPC if we were to find the DPC boron dilution croposals acceptable.

!! arch 25 and June 30, 1976, In safety evaluations dated j

prc0ide positive indication of flow.we stated that DPC had co.mnitted to of the bases for our acceptance of the long-term toron concentrationT analysis.

4 Don !leighbors, Project fianager Operating Reactors Branch #1 DISTRIBUTIO Division of Operating Reactors

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