ML19210C496

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Forwards LER 79-092/03L-0
ML19210C496
Person / Time
Site: FitzPatrick Constellation icon.png
Issue date: 11/08/1979
From: Leonard J
POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19210C497 List:
References
JAFP-79-621, NUDOCS 7911140347
Download: ML19210C496 (1)


Text

o POWER AUTHORITY OF THE STATE OF NEW YORK J AMES A. FITzPATRICK NUCLEAR POWER PLANT JOHN D. LEONARD, JR.

. P.O. Box 41 Resident Manager November 8, 1979 Lymrning, New York 13093 JAFP-79-621 31s-342-3840 Mr. Boyce H. Grier United States Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406 Re ference: Docket No. 50-333 Licensee Event Report: 79-092/03L-0

Dear Mr. Grier:

We have enclosed the referenced Licensee Event Report in accordance with Section 6.0 of Technical Specifications and USNRC Regulatory Guide 1.16.

I f there are any questions concerning this report, please contact Mr. V. Verne Childs at 315-342-3840, Extension 207 Very truly yours,

-)W

/ &hwt JDL:VC:jnk John D. Leonard, J r.

Enclosure Resident Manager CC: USNRC Di rector, Of fice of Inspection & Enforcement (30 copies)

USNRC Di rector, Office of Management information & Program Control (3 copies)

Internal Power Authority Distribution

094

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7911140 5

D POWER AUTHORITY OF THE STATE OF NEW YORK JAMES A. FITZPATRICK NUCLEAR POWER PLANT DOCKET N0. 50-333 ATTACHMENT TO LER 79-092/03L-0 Page 1 of 1 During normal operation, personnel noted an intermittent isolation signal to the HPCI , stem steam supply inside isolation valve (23-MOV-15).

This signal indicated high ambient temperature in the HPCI turbine area and would normally be the result of a steam leak in that area. Since 23-MOV-15 was disabled (circuit breaker in the open position) due to an electrical cable routing problem which was discussed in LER 79-056, the valve did not actually close. Thus, HPCI system operability was not affected and the event did not represent a significant hazard to the public health and safety.

Investigation revealed a loose lead associated with one of the HPCI area temperature switches which caused the intermittent isolation signal.

Norraal operation of the steam leak detector circuits was restored by tightening the connector. This action was npleted approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> after the initial spurious isolation signai was first noted. Valve 23-MOV-15 remains disabled in its open position as noted in LER 79-056.

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