PNO-III-89-032, on 890425,while Plant Was in First Refueling Outage,Approx 30,000 Gallons of Condensate Storage Tank Water Inadvertently Was Drained Into Suppression Pool,W/Some Water Entering Drywell Over Weir Wall

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PNO-III-89-032:on 890425,while Plant Was in First Refueling Outage,Approx 30,000 Gallons of Condensate Storage Tank Water Inadvertently Was Drained Into Suppression Pool,W/Some Water Entering Drywell Over Weir Wall
ML20198L831
Person / Time
Site: Perry FirstEnergy icon.png
Issue date: 04/28/1989
From: Defayette R, Knop R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
References
PNO-III-89-032, PNO-III-89-32, NUDOCS 9710270174
Download: ML20198L831 (1)
v • d • e


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APR$28 '89 12: 5+ HRC REGION 3B P02 PRELIMINARY NOTIFICATION Of EVENT OR UNUSUAL OCCURRENCE PNO-!!!-89-32 Date April 28, 1989 l Mis preliminar notification constitutes EARLY notice of events of POSSI.

[ Jty or. publi -interest significance. The information is as initially

( jived without verification or evaluation, and is basically all that is

- knren by the Region III staf f on this date. /

Fact 11ty: Cleveland Electric Licensee Energency 111umintting Co.- Classification: /DL ) #" " "N Perry Unit 1 Perry. OH 444081 _ Alert Vnusual Event

/w 1 dr/*j L Site Area Emergency General Emergency X Not Applicable

Subject:

FLOODING OF DRYWELL At 2 p.m. (EDT). April 25, 1989, while the plant was in its first refueling outage-(all fuel assemblies have been removed from the core), approximately 30,000 gallons of Condensate

- Storage Tank water inadvertently was drained into the suppression pool, with some water en M ing the drywell over the Weir Wall.

Tk .fcensee determined that a high pressure core spray (HPCS) suction valve to the condensate storage tank (CST) was in the open position when technicians opened an isolation valve on the HPCS full flow test return line to perform Movats testing. With the two valves open, vster from the condensate storage tank overflowed the suppression pool and entered the drywell to a depth of about 12 inches. Drainage was halted when workmen closed the condensate

storage tank suction valve. The licensee is assessing the of fect of this incident on drywell equipment.

7 in III (Chicago) is monitoring the licensee's course of action, i

The State of Ohio will be notified.

R:;gion III learned of this event at 9:30 a.m. (CDT), April 27, 11,89. This information is curr nt as of 11:30 a.m. (CDT). April 28, 1989

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CONTACT:

R. DeFayette f fYR R. Knop f g FTS 388-5767 g FTS 388-5547 g E;

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YE DISTRIBUTION:

WHITE FLINT NORTH _1 MN88 REGIONS FAX TO:

Chairman Zech CA EDU RI INPO Comm. Roberts OGC ' ARM RIl NSAC Comm. Carr Comm. Rogers OI EDO OIA -RIV RV Licensee-NRC Ops Ctr M. b

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Comm. Curtiss NRR NL MAIL T0: PDR (8/634-TJUJ 1

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Rev. 03/01/89 I 'q.008 97102"l0174 890429

-I 99-032 PDR __.

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