05000311/LER-1981-109, Forwards LER 81-109/03L-0.Detailed Event Analysis Encl

Forwards LER 81-109/03L-0.Detailed Event Analysis Encl

ML20032D020
Person / Time
Site:	Salem
Issue date:	11/04/1981
From:	Midura H Public Service Enterprise Group
To:	Haynes R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20032D021	List: 05000311/LER-1981-109, Forwards LER 81-109/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-109-03, /03L-0:on 811006,while Performing Design Change Package Mods,Vitro Labs Representative Allowed Solder to Fall Into 15-volt Power Supply for 2A Safeguards Equipment Control.Caused by Personnel Error.Power Supply Replaced
References
NUDOCS 8111130308
Download: ML20032D020 (3)

LER-1981-109, Forwards LER 81-109/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981109R00 - NRC Website

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...o psgc Public Service Electric and Gas Company P.O. Box 168 Hancocks Bridge, New Jersey 08038 Salem Generating Station November 4, 1981

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U Mr..R. C.

Haynes Director of USNRC Office of Inspection and Enforcement

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Region 1 631 Park Avenue 9

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King of Prussia, Pennsylvania 19406

Dear Mr. Haynes:

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-109/03L 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 81-109/03L.

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

Sincerely yours, f.

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J. Midura General Manager -

Salem Operations

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Report-Number:

81-109/03L TReport.Date:-

11-4-81

- Occurrence Date:

10-6-81 Facility:

Salem Generating-Station,' Unit 2

,Public-Service Electric &, Gas Company Hancocks Bridge, New Jersey 08038-IDENTIFICATION OF OCCURRENCE:

2A Safeguards Equipment Control - Inoperable.

This report was initiated by Incident Report 81-400.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 3'- Rx Power 0% - Unit Load 0 MWe DESCRIPTION OF OCCURRENCE:

On October 6,.1981, while performing the modifications specified in' Design Change Package (DCP) 2-EC-ll50, a Vitro Labs repre-sentative accidently allowed some: solder to fall into the 15 volt power supply for the 2A Safeguards Equipment Control'(SEC),

causing the loss of the. power supply._ At 1200 hours0.0139 days <br />0.333 hours <br />0.00198 weeks <br />4.566e-4 months <br /> 2A SEC was declared inoperable and Action Statement 3.3.2 Action 13 was entered.

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

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Personnel error.

The solder fell into the power supply due to a lack of proper protective covering.

ANALYSIS OF OCCURRENCE:

1 Technical Specification 3.3.2 Action 13 requires:

With the number of operable channels one less than the total number of channels, be in at least hot. standby within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in cold shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

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LER 81-109/03L.,

• CORRECTIVE ' ACTION:.

The 15 volt power supply was replaced.

Proper protective covering ~was utilized and DCP 2-EC-ll50 was completed in 2A,12B, and 2C SEC without further incident' At 1530 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.82165e-4 months <br />, October 6, 1981_2A SEC was declared operable and' Action-Statement 3.3.2 Action 13 was terminated..

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FAILURE DATA:

Power-Mate,.Inc.

Power. Supply Model PXS-CC15 V.A.C.

!W Prepared By F.

Dickey

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1 General / Manager -

Salem Operations SORC' Meeting No.81-114 I

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