ML19224C318

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Submits 790407 Telephone Notification Made to All Westinghouse Operating Plant Customers Having Coincident Pressure & Pressurizer Level Safety Injection Initiation
ML19224C318
Person / Time
Site: Crane 
Issue date: 04/10/1979
From: Anderson T
WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To: Tedesco R
Office of Nuclear Reactor Regulation
Shared Package
ML19224C316 List:
References
NUDOCS 7907020130
Download: ML19224C318 (2)


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E o'x:rt L. Tef.e tco A u;ictauf. Director for Platt Syt torns Elvision of Sysicms Galetv U.S.' Nuclear Itegilluiory Commiusion FEtOhi:

Thomac M. Andarson, Manager

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Eu:1 car Sacty Dep:utment Nuclear Technology Division Westi'ighouse Elc etric Corporation SnJ.) JECT:

Telecon of April 10, 1979 As riiscussed with you on the telephoto thin morning, I ani attacidng a copy cf tno Saiarday, April 7,1979, telephone notification widch was made to all httrg;tcure opcratir.g plent customers havitg; coincident presstirizer pc< ature and pressari;;cr level safety injection initiation.

Writ [cn follcwup notification is in the process ot' being carried out. Cimilar writen notification will also be provided, as applicable, to those ut!!iitas having plants ttru'er construction.

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1979 to re wn li e n., et.ited to your repre r.,untettses in our nicei:ng s of I.pcil 5, t.Tolientions cf the Tarce 1.iile Island incident, yc 2 should lasu e innt yo.$r opcrutors are immediately p:c sided with additional inf ormation and

'inctnactions not to rely upon picssusizer level alone, but to also e>.untne Trnssurizer pressure end other plant parametcr indications in evaluating Your plant requires plant conditions in the event a transient occurs.

lov[ pressurizer pressure (P ) and low pressurizer IcVel (L )

c.otncident p

P in crder to actuate cafety injection. Preliminary ano-lyses of a smal1 broek corittnuos to

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y hang up while l' in the pressutizer tridicater that L ma P

Westinghouse strongly :ecornmends immediate cctions to instmot elecr ea se.

your oporctors that P shculd be i.'oni"cred carefully along with o.her important Information. In particular, if P drops below the safety injection inittet'ica setpoint for your plant, safety injection should be manually initiated. As,

additional infermation becomes available, we will communicate further with you regdrding this matter. We ask that ycu keep @ informed regarding cheagm This is consistent ith thbt you doem appropriate as a result of your review..

'she recomuendc. tion made at our Thursday, April 5,1979 mcoting in Monroevili-and is be.ing reiterated here to insure that appropriate action is tchen cuicp.ly.

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