ML20197G388

Submits Daily Highlights.On 840423,while Testing Scram Discharge Valve a & Calibr Feedwater Valve B,Large Amount of Cold Water Discharged Into Reactor & RCIC Declared Inoperable

ML20197G388
Person / Time
Site:	Columbia
Issue date:	04/27/1984
From:	Rajender Auluck Office of Nuclear Reactor Regulation
To:	Case E, Harold Denton, Edison G Office of Nuclear Reactor Regulation
References
CON-WNP-0753, CON-WNP-753 NUDOCS 8405150496
Download: ML20197G388 (1)

Text

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,( 'hg UNITED STATES y ' > .f. g NUCLEAR REGULATORY COMMISSION

E WASW NG TON. D. C. 20555 g, 5

%, . . . . . ,6 Docket No. 50-397 Distribution:

Docket Control ,

H. R. Denton, NRR LB2 Reading MEMORANDUM FOR:

E. G. Case, NRR G. Edison, NRR D. G. Eisenhut, DL -

R. A. Purple, DL -

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H. Thompson, DHFS '

R. H. Vollmer, DE .

R. J. Mattson, DSI T. P. Speis, DST J. Taylor, I&E G. Holahan. ORAB T. M. Novak, DL G. Lainas, DL F. Miraglia, DL TERlt: A. Schser.ncer, Chic' Licensing Branch No. E Division c' Licensing FROM: R. Auluck, Project Manager Licensing Branch No. 2, DL

SUBJECT:

DAILY HIGHLIGHT - WNP-2 PLANT STARTUP STATUS While performing surveillance testing on scran discharge volume A and simultaneously calibrating reactor feedwater (RFU) valve B on April 23, due to operator manipulation, a large amount of cold water was discharged into the reactor at a high rate resulting in a reactivity spike and reactor scram. At present, the plant is in operational condition 4 (cold shutdown).

The RCIC was also declared inoperational on April 23, due to problems with RCIC turbine controls. The licensee is in the process of clearing up the action statenents and is planning to verify the RCIC operability at 150 psig.

To maximize use of this time, the licensee also mt>ved up the maintenance outage previously scheduled for next week to this week. Also on April 19, during the plant heatup and startup testing, WNP-2 was taken above 5-percent of rated power.

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3 R. Auluck, Project Manager p Licensing Branch No. 2 Division of Licensing lM DL:LB#2/BC luck:bdm ASchwencer 4/q/84 4/g84 496840427Xh e ADOCK 05000397

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