05000293/LER-1979-043, Forwards LER 79-043/03L-0

Forwards LER 79-043/03L-0

ML19262A915
Person / Time
Site:	Pilgrim
Issue date:	12/06/1979
From:	Mcguire P BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19262A916	List: 05000293/LER-1979-043, Forwards LER 79-043/03L-0 05000293/LER-1979-043-03, /03L-0:on 791108,drywell Unidentified Leakage Rate Exceeded Tech Specs.Caused by Leakage Passing Inboard Isolation Valve MO-2301-4 on HPCI Sys.Valve Backseated & Leakage Reduced to Less than That Requiring Shutdown
References
79-258, NUDOCS 7912110311
Download: ML19262A915 (1)

LER-1979-043, Forwards LER 79-043/03L-0

Event date:
Report date:
2931979043R00 - NRC Website

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""" Ed1SOI) avmv P!LGPI'.1 NUCLEAR PJ/;ER ST 4.

RFD - 1 RocNY H um. Rc PLYVOUTH. M ASSJOJ5E TTS U? E December 6, 1979 BECo Ltr.

1. 79-258 Director, Region I Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406 Licensee Event Report 79-043/03L Docket Number 50-293 License DPR-35 Gentlemen:

The attached Licensee Event Report 79-043/03L, HPCI Isolation Valve, is hereby submitted in accordance with the requirements of Pilgrim Nuclear Power Station Technical Specification 6.9.B.

The Operations Review Committee has reviewed this event and classified it as operation in a degraded mode permitted by a Limiting Condition for Operation (Specification 6.9.B.2.b).

If there are any questions on this subject, please contact us.

Respectfully submitted, G _..

,1

,/

?// N A f" P. J. Mc5'uire Station Manager Nuclear Operations PJM:kf

Enclosures:

(3 copies)

LER 79-043/03L cc: Director (40 copies)

Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, D.C.

20555 1528 070 7912110 j$ / / 5