05000311/LER-1981-126, Forwards LER 81-126/03L-0.Detailed Event Analysis Encl

Forwards LER 81-126/03L-0.Detailed Event Analysis Encl

ML20040B322
Person / Time
Site:	Salem
Issue date:	01/08/1982
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20040B323	List: 05000311/LER-1981-126, Forwards LER 81-126/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-126-03, /03L-0:on 811212,instrument Points on Radiation Monitor 2R12A Failed High.Cause Unknown.Monitor Bench Tested Satisfactorily,Batteries Replaced & Monitor Reinstalled. Setpoints Reinstated & Tested
References
NUDOCS 8201250404
Download: ML20040B322 (3)

LER-1981-126, Forwards LER 81-126/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981126R00 - NRC Website

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' OPSEG PotTc Smviv: Electric and Gm Company P.O. Box 168 Hanco(Js Brity;, New Jersey 08038 Salem Generating Station January 8, 1982

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Mr.

R.

C.

Ilaynes W

Director of USNRC s

1. g Office of Inspection and Enforcement s ;,'

'Q q Region 1 c/

631 Park Avenue King of Prussia, Pennsylvania 19406 L

Dear Mr. Ilaynes:

'/

j LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-126/03L Pursuant to the requirements of Salem Generating Station Unit No.

2, Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 81-126/03L.

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

Sincerely yours, t< q -

v II.

J.

Midura General Manager -

Salem Operations CC:

Distribution l

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l Report Number:

81-126/03b Report Date:

01-08-82 1

Occurrence Date:

12-12-81 Facility:

Salem Generating Station, Unit 2 Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Radiation Monitor 2R12A - Inoperable.

i This report was initiated by Incident Report 81-496.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 98% - Unit Load 1140 MWe DESCRIPTION OF OCCURRENCE:

On December 12, 1981 the instrument setpoints on Radiation Monitor 2R12A failed high.

At 0717 hours0.0083 days <br />0.199 hours <br />0.00119 weeks <br />2.728185e-4 months <br /> 2R12A was declared inoperable and Action Statement 3.3.3.1 table 3.3-6 was entered.

This occurrence constituted operation in a degraded modo in accordance with Technical Specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The 2R12A setpoints failed high from unknown causes.

Subsequent l

testing has failed to reveal a cause.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.3.3.1 table 3.3-6 requires:

With the number of channels operable less than required by the minimum channels operable requirement, comply with the Action Requirements of Specification 3.4.7.1.

Technical Specification 3.4.7.1 requires:

With only two of the required Leakage Detection Systems operable, operation may continue for up to 30 days pro-vided grab samples of the containment atmosphere are obtained and analyzed at least once per 24 houts.

LER 81-126/03L

CORRECTIVE ACTION

The monitor was removed and bench-tested satisfactorily.

The batteries were tested, and were fully charged, but were replaced as a precautionary measure.

The monitor was reinstalled, the setpoints reinstated, and it was tested satisfactorily.

At 1120 hours0.013 days <br />0.311 hours <br />0.00185 weeks <br />4.2616e-4 months <br /> 2R12A was declared operable and Action Statement 3.3.3.1 table 3.3-6 was terminated.

Subsequently, on January 6, 1982 the monitor functional test was satisfactorily performed.

FAILURE DATA:

Victoreen Instrument Division Radiation Monitoring System l

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/

//7 / / /16uvQc Prepared By F.

Dickey

/

General Manager -

D Salem Operations SORC Meeting No.

82-02