05000219/LER-1981-003, Forwards LER 81-003/03L-0

Forwards LER 81-003/03L-0

ML19345F624
Person / Time
Site:	Oyster Creek
Issue date:	02/09/1981
From:	Finfrock I JERSEY CENTRAL POWER & LIGHT CO.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19345F625	List: 05000219/LER-1981-003, Forwards LER 81-003/03L-0 05000219/LER-1981-003-03, /03L-0:on 810112,during Visual Insp of Fire Hydrants,Hydrant 2 Found to Contain Frozen Water in Barrel, Rendering Hydrant Inoperable.Caused by Water Leaking from Hydrant Valve & Freezing in Barrel.Hydrant Thawed
References
NUDOCS 8102180626
Download: ML19345F624 (3)

LER-1981-003, Forwards LER 81-003/03L-0

Event date:
Report date:
2191981003R00 - NRC Website

text

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• 08731 February 9, 1981 Mr. Boyce H. Grier, Director Office of Inspection and Enforcc ent Region I United States Nuclear Regulatory Comission 641 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

SUBJECT: Oyster Creek Nuclear Generating Station Docket No. 50-219 Licensee Event Report Reportable Occurrence No. 50-219/81-03/3L This letter forwards three copies of a Licensee Event Report to report Reportable Occurrenc6 No. 50-219/81-03/3L in empliance with paragraph 6.9.2.b.2 of the Technical Specifications.

Very truly yours, h

Ivan R. Finf r.

Vice President - JCP&L Director - Oyster Creek IRF:dh Enclosures cc: Director (40 copies)

Office of Inspection and Enforcenent United States Nuclear Regulatory Camtission Washington, D.C.

20555 Director (3)

Office of Managenent Information

.C and Program Control y

United States Nuclear Regulatory Comtission Washington, D. C. 20555 NRC Resident Inspector (1)

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Oyster Creek Nuclear Generating Station Forked River, N. J.

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8102180(ollla 3

OYSTER CREEK NUCLEAR GE2ERATING STATION Forked River, New Jersey 08731 Licensee Event Report Reportable Occurrence No. 50-219/81-03/3L Report Date February 9, 1981 Occurrence Date January 12, 1981 Identification of Occurrence Inoperable Fire Hydrant #2. This event is considered to be a reportable occurrence as defined in the Technical Specifications, paragraph 6.9.2.b.2.

Conditions Prior to Occurrence The plant was operating at steady state power.

Plant parameters at time of occurrence were:

Power:

Core 1425 m t Electrical 480 Me 4

Flow:

Recirculation 12 x 10 Feedwater 5.277 x 1 lb/hr Description of Occurrence On January 12, 1981, a visual inspection revealed that water had frozen in the barrel of Fire Hydrant #2 making it inoperable. Mditional fire hose was routed frm Fire Hydrant #3 to Hydrant #2 to supply back-up fire suppression water.

Fire Hydrant #2 was enclosed and heat was applied to the enclosure. The following norning the hydrant was declared operable.

Apparent Cause of Occurrence The cause of this event appears to be fran water leaking by the hydrant valve and freezing in the barrel due to severe low tmperature conditions.

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Analysis of Occurrence Fire hydrants are intended to supply outside fire suppression water. Visual inspections are performed nonthly to assure operability. Normally water would not accumulate in the barrels of a hydrant due to the drains provided. The cmbination of events i.e. water leaking by valve, severe low temperature conditions, and increased frost line depth, all contributed to this event. Past experience has shown that this is the first time this has occurred at Oyster Creek.

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Reportable Occurrence Page 2 Report tio. 50-219/80-03/3L

Corrective Action

Imrediately after diswvery, fire hose frcm Ilydrant #3 was routed to Ilydrant #2 to provide back-up fire suppression water. Fubsequently, the hydrant was unfrozen and returned to service. A job order has been issued to repar the leakage of water past the fire hydrant operating valve.

Failure Data Type:

Kennedy K-12 UA Fire Hydrant Size:

5 1/4" I

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