05000259/LER-1979-029-03, /03L-0:on 791016,design Flow Rate Testing Not Performed on Primary Containment Purge Sys.Caused by Misinterpretation of Tech Specs.Design Flow Completed & Tech Specs Reviewed

/03L-0:on 791016,design Flow Rate Testing Not Performed on Primary Containment Purge Sys.Caused by Misinterpretation of Tech Specs.Design Flow Completed & Tech Specs Reviewed

ML19256F070
Person / Time
Site:	Browns Ferry
Issue date:	11/15/1979
From:	Calhoun J TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19256F066	List: 05000259/LER-1979-029, Forwards LER 79-029/03L-0 05000259/LER-1979-029-03, /03L-0:on 791016,design Flow Rate Testing Not Performed on Primary Containment Purge Sys.Caused by Misinterpretation of Tech Specs.Design Flow Completed & Tech Specs Reviewed
References
LER-79-029-03L, LER-79-29-3L, NUDOCS 7911210062
Download: ML19256F070 (2)

LER-1979-029, /03L-0:on 791016,design Flow Rate Testing Not Performed on Primary Containment Purge Sys.Caused by Misinterpretation of Tech Specs.Design Flow Completed & Tech Specs Reviewed

Event date:
Report date:
2591979029R03 - NRC Website

text

P:R ERR"" &J U. S. NUCLE AR REGULATORY COMMISSION NRc FORM 366 (7 771 L.CENSEE EVENT REPORT CONTROL BLOCK: l l

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60 DOCKET NUMS EH 68 69 EVENT DATE 74 75 REPORT DATE 80 7

8 EVENT OESCRIPTION AND PROBABLE CONSEQUENCES h o

2 l Design flow rate testing was not performed on the primary containment purge system a f-l l ter 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of system operation as required by Technical Specification 4.7.F.2.a.

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3 lThere were no significant events. There is no redundant system. There was no danger l o

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h Inemiirea enReing unR nne cnna,,cepa because the frecuency of testing recuired by the i

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• Ju' Form BF-1; Browns Ferry Nuclear Plant P F IC..:

! /10.'73 LER SUPPLEBENTAL INFORMATION BFRO 259 / 7929 Technical Specification Involved _3.7.F.2.c/4.7_.F._2.a.

Reported Under Technical Specification 6.7_.2.b.3 Date af Occurrence 10/16/79 Time of Occurrence 1400 _ Unit 1,2 & 3 Identification and Description of Occurrence:

Design flow rate testing was not performed on the primary containment purge system after 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of system operation as required by Technical Specification 4.7.F.2.a.

Conditions Prior to Occurrence:

Normal operations Unit 1 - 900 MWe Unit 2 - 1090 We.

Unit 3 - Refuelinga Actian spe.cified in the Technical Specification Surve111ence Requirements met due tr, inoperable equipment.

Describe.

None Appargt Cause of Occurrence.

~

Required testing was not conducted beenuse the fre.quency of testing required by the technical specifications was misinterpreted.

Analysis af Occurrence:

There was no hazard to the public health or safety.

Correctiva Action:

Comprehensive review of the technical specifications, to ensure that all testing of filter trains and systems is being conducted, has been completed. No further discrepancies were noted.

Failere D.ita:

None previous

• Reten tion :

eriod - Lifetime, Responsibility - Admini.str'itive Supervt or S>hY i375 540

• Revision : VJ