05000272/LER-1979-014, Forwards LER 79-014/03L-0

Forwards LER 79-014/03L-0

ML18078B034
Person / Time
Site:	Salem
Issue date:	03/14/1979
From:	Librizzi F Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18078B036	List: 05000272/LER-1979-014, Forwards LER 79-014/03L-0 05000272/LER-1979-014-03, /03L-0 on 790220:during Normal Operation,Radiation Monitoring Sys Channel 1R 12B Alarms Found Not Operating. Channel Later Returned to Svc & Operated Properly.Caused by Unknown Factor
References
NUDOCS 7903200425
Download: ML18078B034 (3)

LER-1979-014, Forwards LER 79-014/03L-0

Event date:
Report date:
2721979014R00 - NRC Website

text

OPSai Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 201/622-7000 Mr. Boyce H. Grier Director of USNRC Off ice of Inspection and Enforcement Region l 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 79-14/03L MAR 1 4 1979 Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.Q.l, we are submitting Licensee Event Report for Reportable Occurrence 79-14/03L.

This report is required within thirty (30) days of the occurrence.

Sincerely yours,

)_,,;:~~

F. P. Librizzi General Manager -

Electric Production CC:

Director, Office of Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control 790320 0 't &-5° The Energy People

- 1 95-2001 300M 10*7*

I Report Number:

79-14/03L Report Date:

Occurrence Date:

2/20/79 Facility:

Salem Generating Station Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

RMS Channel 1Rl2B Inoperable CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 1 Reactor Power 100%

DESCRIPTION OF OCCURRENCE:

At 1020 hours0.0118 days <br />0.283 hours <br />0.00169 weeks <br />3.8811e-4 months <br />, channel functional tests of RMS channels lRllA, 1Rl2A, and 1Rl2B were started and Action Statement 22 for Technical Speci-fication 3.3.3.lb was implemented.

The tests showed that the 1Rl2B channel alarm was not functioning properly.

Trouble-shooting channel components corrected the problem and the channel was declared operable at 1215 hours0.0141 days <br />0.338 hours <br />0.00201 weeks <br />4.623075e-4 months <br /> on 2-21-79.

The Action Statement for T/S 3.3.3.lb was terminated.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of this occurrence is unknown.

Trouble-shooting of the channel did not identify any component failure.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.3.3.lb Action 22 requires that with the number of channels operable less than required by the minimum channels operable requirement, comply with the action requirement of Specification 3.9.9 which requires that with the containment purge and pressure-vacuum relief isolation system inoperable, close each of the purge and pressure-vacuum relief penetrations providing direct access from the containment atmosphere to the outside atmos-phere.

The containment purge and pressure-vacuum relief isolation system is operable if isolation occurs on manual initiation and on a high radiation test signal from each of the containment RMS channels.

The applicable penetrations were closed at the time 1Rl2B alarm failure1was detected and remained closed in accordance with the Action Statement until the channel was returned to operable status at 1215 on 2-21-79.

LER 79-14/03L.

2 -

CORRECTIVE ACTION

The channel connectors and the alarm relays were inspected and tested satisfactory.

Subsequent performance of the channel functional test showed the channel to be operating properly.

No further corrective action is required.

FAILURE DATA:

Not Applicable Prepared by A. W. Kapple

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SORC Meeting No.

13-79 Manage:i;:1 - Salem Generating Station I