05000272/LER-2078-012-03, Inoperability of Apd Unit

Inoperability of Apd Unit

ML19031B043
Person / Time
Site:	Salem
Issue date:	03/15/1978
From:	Librizzi F Public Service Electric & Gas Co
To:	Grier B NRC/IE, NRC Region 1
References
LER 1978-012-03
Download: ML19031B043 (4)

LER-2078-012, Inoperability of Apd Unit

Event date:
Report date:
2722078012R03 - NRC Website

text

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Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 201 /622-7000 Mr. Boyce H. Grier Director of USNRC Office of Inspections and Enforcements Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 78-12/03L Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.l.b, we are submitting Licensee Event Report for Reportable Occurrence 78-12/03L.

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 95-2001 300M 1 I

Report Number:

78-12/03L Report Date:

Occurrence Date:

2/17/78 Facility:

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

Air Particulate Detector Inoperable CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 1 Reactor Power:

100%

DESCRIPTION OF OCCURRENCE:

At 0451 hours0.00522 days <br />0.125 hours <br />7.457011e-4 weeks <br />1.716055e-4 months <br />, the air particulate detector was removed from service due to a filter failure alarm.

Technical Specification Action State-ments 3.3.3.1.b and 3.4.b.l were implemented.

Containment pressure relief was terminated.

Detector filter paper was found to be jammed on the take-up reel.

Filter paper was realigned and unit tested satisfactory.

Action Statements were terminated at 0545 hours0.00631 days <br />0.151 hours <br />9.011243e-4 weeks <br />2.073725e-4 months <br />.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of this occurrence was jammed filter paper on the paper take-up reel.

ANALYSIS OF OCCURRENCE:

Technical Specification 3.4.b.l states that with only two of the required leakage detection systems operable, operation may continue for up to 30 days provided grab samples of the containment atmosphere are obtained and analyzed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> when the required gaseous and/or particulate radioactivity monitoring system is inoperable; otherwise, be in Hot Standby within the next six hours 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 />.

The air particulate monitor was returned to operable status in 54 minutes.

The containment fan cooler condensate flow and containment sump level monitors were operable throughout this event.

CORRECTIVE ACTION

Filter paper was realigned on take-up reel and unit tested satisfactory.

LER Report No. 78-12/03L FAILURE DATA:

N/A I

Prepared by T. L. Spencer Jflc/d~.~

Manager -

s9~em Generating Station SORC Meeting No.

12-78

NRC FrM 366 (7-771 LICENSEE EVENT REPORT CONTROL BLOCK: I I '

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(PLEASE PRINT O.PE ALL REQUIRED INFORMATION!

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LICENSEE CODE 14

5 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 CAT 58 CON'T [ill]

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~~~~~ L!J©! o I s I ol o I o I 2 I 7 I 2 IG)I 01 2 I ll 7 I 7 I a 1©1 o I 3 11 1 s 17 1 s IG) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

i:I::U:J I APD unit filter failure alarm received.

APD unit declared inoperable.I Containment pressure relief terminated.

Fan coil unit condensate flow!

and containment sump level monitors operable. APD returned to service in 54 minutes.

This is the fifth occurrence of APD failure.

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7 8 9 SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUBCODE COMPONENT CODE SUBCODE SUB CODE [IITJ I BIBI@ L!J@ Lz.J@ I xix I xix I xix 18 w LI.J@

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@ LER'RO CVENTYE.A.R REPORT NO.

REPORT I 7 I 8 I l=.J I o I ;y 21 I/I NUMBER 21 22 23 24 26 27 OCCURRENCE CODE Io I 31 28 29 REPORT TYPE L1J 30 1=l 31 REVISION NC. w 32 80 ACTION FUTURE EFFECT SHUTDOWN

~ ATTACHMENT NPR0-4 TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORM ::iUB.

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43 44 o::::IIJ I This occurrence was caused by the detector filter paper jamming on the paper take-up reel.

APD unit was removed from service. filter o::m o:rn paper realigned, tested, and returned to service.

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10 68 69 ea NAMEOFPREPARER ______ T ___. __

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PHONE: (609) 365-7000 Salem Ext.(

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