05000311/LER-1981-052, Forwards LER 81-052/03L-0.Detailed Event Analysis Encl

Forwards LER 81-052/03L-0.Detailed Event Analysis Encl

ML20030B285
Person / Time
Site:	Salem
Issue date:	07/27/1981
From:	Uderitz R Public Service Enterprise Group
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20030B287	List: 05000311/LER-1981-052, Forwards LER 81-052/03L-0.Detailed Event Analysis Encl 05000311/LER-1981-052-03, /03L-0:on 810627,radiation Monitoring Sys Suction Pump for Unit 2 Containment Tripped Thermal Overloads.Caused by Excessively High Suction Vacuum Setting.Thermal Overloads & Vacuum Setting Reset
References
NUDOCS 8108060287
Download: ML20030B285 (3)

LER-1981-052, Forwards LER 81-052/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3111981052R00 - NRC Website

text

g O PSEG Public Service Electric and Gas Company 80 Park Plaza Newark, N.J. 07101 Phone 201/430-7000 July 27, 1981 N'

h 4 h yh [f Mr. Boyce H.

Grier Director of USNRC Office of Inspection and Enforcement

1. .7 0 51981m Region 1 631 Park Avenue

'. Q u.s. u tu um u ms:

s King of Prussia, Pennsylvania 19406

Dear Mr. GIier:

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LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-52/03L 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 81-52/03L.

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

Sincerely yours,

/

(JAl' R. A.

Uderit i

General Manager -

l Nuclear Production

(

l CC:

Director, Office of Inspection l

and Enforcement (30 copies) l Director, Office of Management Information and Program Controi (3 copies) i 81080602P' 810727 g/([f

' PDR ADOCK 05000311 l

S PDR The Energy People 952m n a m ai

_ = _.

4 Report Number:

81-52/03L Report Date*

July 27, 1981 4

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Occurrence Date:

6-27-81 Facility:

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

i Process monitors 2RllA and 2R12A - Inoperable.

This report was initiated by Incident Report 81-219.

)

CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 - Rx Power 25% - Unit Load 260 MWe DESCRIFTION OF OCCURRENCE:

On June 27, 1981, the Radiation Monitoring System suction pump for Unit 2 containment tripped its thermal overloads, causing a low flow condition in the 2RllA and 2R12A monitors.

The monitors were declared inoperable, and action statements 3.3.3.1 and 3.4.7.1 were entered at 0222 1;ours, June 27, 1981.

This occurrence constituted operation in a degraded mode in accordance-j with technical specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Equipment failure.

The suction pump for the Radiation Monitoring i

System tripped its thermal-overloads'due toian: excessively'highgn-suction vacuum setting of 7.5 inches of water.

ANALfSIS OF OCCURRENCE:

l Technical specification 3.3.3.1 requires:

With one or more radition monitoring channels inoperable, I

comply with the action requirements of technical specifi-l cation 3.4.7.1.

Technical specification 3.4.7.1 requires:

With the containment atmosphere Particulate Radioactivity Monitoring System inoperable, operation may continue for up to 30 days, provided grab samples of th(

ontainment atmosphere are obtained and analyzed at lea t once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

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LER 81-52/03L July 27, 1981

CORRECTIVE ACTION

The action requirements for technical specification 3.4.7 were complied with.

The suction pump thermal overloads were reset, and the vecuum setting was reset to that of 5 inches of water.

The pump was tested satisfactorily and returned to service.

Action Statements 3.3.3.1 and 3.4.7.1 were terminated at 0815, June 27, 1981.

FAILURE DATA:

1 Roots-Dresser Co.

Rotary Lobe Blower Model 6SF-CW

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Prepared by F.

Dickey

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Manager - paledt Generat/ing Station SORC Meeting No.

81-68 I

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