ML20082B792

RO 83-01:on 831103,fire Suppression Water Sys Declared Inoperable Due to Smoke Emitting from Under Fire Pump 1-2 Pumphead During post-maint Inservice Test & Failed Design Rated Curve for Pump 1-1.Caused by Misadjusted Impeller

ML20082B792
Person / Time
Site:	Oyster Creek
Issue date:	11/04/1983
From:	Fiedler P GENERAL PUBLIC UTILITIES CORP.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
RO-83-01, RO-83-1, NUDOCS 8311210331
Download: ML20082B792 (3)

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To: Dr. Thomas E. Murley, Regional Adninistrator U.S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 From: GPU Nuclear Oyster Creek Nuclear Generating Station Dccket No. 50-219 Forked River, NJ 08731

Subject:

Special Report to the Commission

'Ibe following is a preliminary report submitted in compliance with the 'Ibchnical Specifications, paragraph 3.12.B.3.b.

Report Date: November 4, 1983 Notification of the event described herein was made to Mr. C. Cowgill of the NRC Resident Inspector's office on November 4, 1983 at approximately 0830 hours0.00961 days <br />0.231 hours <br />0.00137 weeks <br />3.15815e-4 months <br /> by Mr. Robert Jewell - Oyster Creek Licensing Preliminary Approval:

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4J Pete'r B. Fiedler

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Vice President and Director Oyster Creek PBF:RPJ: dam cc: Director (2)

Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, DC 20555 NRC Resident Inspector Oyster Creek Nuclear Generating Station Forked River, tU 08731 8311210331 831104 I

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OYSTER CREEK NUCLEAR GENERATING STATION Forked River, NJ 08731 Special Report 83-01 i

Report Date November 4, 1983 Occurrence Date November 3, 1983 Identification of Occurrence While fire pump 1-2 was out of service for maintenance, fire pump 1-1 was flow tested and did not meet the requirements of Technical Specifications, paragraph 4.12.B.l.e.l. These test results led to fire pump 1-1 being declared inoperable. With both fire pumps 1-1 and 1-2 inoperable, the fire suppression water system is inoperable.

This event requires a Special Report to the Commission as defined in the Technical Specifications, paragraph 3.12.B.3.b.

Conditions Prior to Occurrence Plant is in an outage condition with no fuel in the vessel.

Description of Occurrence On November 3, 1983, the Fire Suppression Water System at Oyster Creek was

declared inoperable based on the following conditions

1. Fire pump 1-2 had been taken out of service on October 22, 1983 at

, approximately 1045 hours0.0121 days <br />0.29 hours <br />0.00173 weeks <br />3.976225e-4 months <br />. Smoke was observed emitting from under the punphead during a post-maintenance in-service test.

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2. Fire pump 1-1 was' determined inoperable after falling short of. design rated curve during a flow test. We actual punp test recorded the

punp discharge pressure at 135 psig for 2000 GPM instead of the Technical Specification pressure of 155 psig.

l Apparent cause of Occurrence

. %e apparent cause of this occurrence was inpeller mis-adjustment on fire pump l l-1..

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Speciel Report 83-01 Page 2 Corrective Action A backup fire water supply will be valved in to supply the fire protection system if necessary. Also, fire pump 1-1, even though not meeting Technical i specifications pressure requirements, is functional and will supply the fire protection system during an emergency.

I Fire pump 1-2 is scheduled to be placed back in service on November 7, 1983 and the impeller adjustment required on fire pump 1-1 will be performed after fire pump 1-2 is declared operable.

Prepared by a um Date //-4"83 C tion Supervisor l

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