ML19308B768

Responds to 790202 Request for Answers to NRC 790131 Questions Re Loss of Pressurizer Level.Two Events Occurred Following Reactor Trips.Evaluations Were Made to Determine Effect on RCS

ML19308B768
Person / Time
Site:	Crane
Issue date:	02/08/1979
From:	Hilbish J METROPOLITAN EDISON CO.
To:	Janis J BABCOCK & WILCOX CO.
References
TASK-TF, TASK-TMR GQL-0200, GQL-200, NUDOCS 8001170267
Download: ML19308B768 (2)

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'; tree Mile Island Nuclear 'S:aden, Unit 2 (TMI-2) loss of Pressuri:e Level Indication in[:esponse to you; le::e of Teb'ruarv 2, '1579 concerning.lo'ss of pressuri:e.

l lese.1 indica: ion ~,; :he"fellovi. s L a.ns,versj to th,e ques: ions ref erenced in the 12::

le::e of January 31, 1979;are provided:-

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:u :e.ces have taken pla:e folloving res: :: ::ips which resul:ed in,les s f pres e.::1:::. riel f. fica:i:n.

L Me::cpoli:s Ilisen Cc Tany THIS DOCUMENT CONT 4fNS.

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POOR QUAUTY PAGES 4.

a, f.pril 23, 1978 h.

Sevenber 7, 1978 5.

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Inspection Repor: 78-17, da:ed May 31, 1978 In 76433/17, da:ed May 8, 1978 Specia.1 Repc :, da:ed July 24, 1978

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. li, Inspection Re?c:: 78-13 3.ed Nove=ber 30, 1978 Spe:ial Repc:: 75-65/991, dated Ja=uary 30, 1979 Following each o' these :ve even s an evaluatien was =ade to de:er ' e E. ~ the effect on :he Reae:o: Coolan: Syste=.

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In the April 23, 1978 even:, al: hough the pressurize level indica:ica had gene belov :ero, evaluations de=ons::ste tha:

the core rer.ained cevered throughout the ::a=siest.

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I. the Nevenbar 7. 1975 ever.*. al-heugh the presruri:e: level indica:icn had gene belov re c. a vole =e of E!.0 galicas cf us:e:

s re.ained in :he pressurizer. The core re.ained covered through-out the transient.

b events conce:ning loss of pressurize: level indica:icn have o:::::ed e:

rnree P.ile 1sitnd U:.1: 1 during operation.

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